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Spider Species List for Canada

This list is updated daily at 10:00 GMT
and is compiled from contributed specimen records.

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# Family Species
1 78 AGELENIDAE Agelenopsis actuosa (Gertsch & Ivie, 1936)
2 78 AGELENIDAE Agelenopsis oklahoma (Gertsch, 1936)
3 78 AGELENIDAE Agelenopsis oregonensis Chamberlin & Ivie, 1935
4 78 AGELENIDAE Agelenopsis potteri (Blackwall, 1846)
5 78 AGELENIDAE Agelenopsis utahana (Chamberlin & Ivie, 1933)
6 78 AGELENIDAE Novalena intermedia (Chamberlin & Gertsch, 1930)
7 78 AGELENIDAE Tegenaria agrestis (Walckenaer, 1802)
8 78 AGELENIDAE Tegenaria atrica C. L. Koch, 1843
9 78 AGELENIDAE Tegenaria domestica (Clerck, 1757)
10 78 AGELENIDAE Tegenaria duellica Simon, 1875
11 86 AMAUROBIIDAE Amaurobius borealis Emerton, 1909
12 86 AMAUROBIIDAE Arctobius agelenoides (Emerton, 1919)
13 86 AMAUROBIIDAE Callobius bennetti (Blackwall, 1846)
14 86 AMAUROBIIDAE Callobius nomeus (Chamberlin, 1919)
15 86 AMAUROBIIDAE Callobius pictus (Simon, 1884)
16 86 AMAUROBIIDAE Callobius severus (Simon, 1884)
17 86 AMAUROBIIDAE Coras juvenilis (Keyserling, 1881)
18 86 AMAUROBIIDAE Cybaeopsis euopla (Bishop & Crosby, 1935)
19 86 AMAUROBIIDAE Wadotes calcaratus (Keyserling, 1887)
20 3 ANTRODIAETIDAE Antrodiaetus pacificus (Simon, 1884)
21 92 ANYPHAENIDAE Anyphaena aperta (Banks, 1921)
22 92 ANYPHAENIDAE Anyphaena pacifica (Banks, 1896)
23 65 ARANEIDAE Acanthepeira stellata (Walckenaer, 1805)
24 65 ARANEIDAE Aculepeira carbonarioides (Keyserling, 1892)
25 65 ARANEIDAE Aculepeira packardi (Thorell, 1875)
26 65 ARANEIDAE Araneus bicentenarius (McCook, 1888)
27 65 ARANEIDAE Araneus cavaticus (Keyserling, 1882)
28 65 ARANEIDAE Araneus corticarius (Emerton, 1884)
29 65 ARANEIDAE Araneus diadematus Clerck, 1757
30 65 ARANEIDAE Araneus gemma (McCook, 1888)
31 65 ARANEIDAE Araneus gemmoides Chamberlin & Ivie, 1935
32 65 ARANEIDAE Araneus groenlandicola (Strand, 1906)
33 65 ARANEIDAE Araneus guttulatus (Walckenaer, 1842)
34 65 ARANEIDAE Araneus iviei (Archer, 1951)
35 65 ARANEIDAE Araneus juniperi (Emerton, 1884)
36 65 ARANEIDAE Araneus marmoreus Clerck, 1757
37 65 ARANEIDAE Araneus montereyensis (Archer, 1951)
38 65 ARANEIDAE Araneus nordmanni (Thorell, 1870)
39 65 ARANEIDAE Araneus saevus (L. Koch, 1872)
40 65 ARANEIDAE Araneus thaddeus (Hentz, 1847)
41 65 ARANEIDAE Araneus trifolium (Hentz, 1847)
42 65 ARANEIDAE Araneus washingtoni Levi, 1971
43 65 ARANEIDAE Araneus yukon Levi, 1971
44 65 ARANEIDAE Araniella displicata (Hentz, 1847)
45 65 ARANEIDAE Araniella proxima (Kulczynski, 1885)
46 65 ARANEIDAE Argiope aurantia Lucas, 1833
47 65 ARANEIDAE Argiope trifasciata (Forsskål, 1775)
48 65 ARANEIDAE Cercidia prominens (Westring, 1851)
49 65 ARANEIDAE Cyclosa conica (Pallas, 1772)
50 65 ARANEIDAE Eustala anastera (Walckenaer, 1842)
51 65 ARANEIDAE Eustala cepina (Walckenaer, 1842)
52 65 ARANEIDAE Hypsosinga alberta Levi, 1972
53 65 ARANEIDAE Hypsosinga funebris (Keyserling, 1892)
54 65 ARANEIDAE Hypsosinga groenlandica Simon, 1889
55 65 ARANEIDAE Hypsosinga pygmaea (Sundevall, 1831)
56 65 ARANEIDAE Hypsosinga rubens (Hentz, 1847)
57 65 ARANEIDAE Larinia borealis Banks, 1894
58 65 ARANEIDAE Larinioides cornutus (Clerck, 1757)
59 65 ARANEIDAE Larinioides patagiatus (Clerck, 1757)
60 65 ARANEIDAE Larinioides sclopetarius (Clerck, 1757)
61 65 ARANEIDAE Mangora gibberosa (Hentz, 1847)
62 65 ARANEIDAE Mangora maculata (Keyserling, 1865)
63 65 ARANEIDAE Mangora placida (Hentz, 1847)
64 65 ARANEIDAE Metepeira foxi Gertsch & Ivie, 1936
65 65 ARANEIDAE Metepeira grandiosa Chamberlin & Ivie, 1941
66 65 ARANEIDAE Metepeira palustris Chamberlin & Ivie, 1942
67 65 ARANEIDAE Micrathena sagittata (Walckenaer, 1842)
68 65 ARANEIDAE Neoscona arabesca (Walckenaer, 1842)
69 65 ARANEIDAE Neoscona crucifera (Lucas, 1838)
70 65 ARANEIDAE Parazygiella dispar (Kulczynski, 1885)
71 65 ARANEIDAE Singa eugeni Levi, 1972
72 65 ARANEIDAE Singa keyserlingi McCook, 1894
73 65 ARANEIDAE Zygiella atrica (C. L. Koch, 1845)
74 65 ARANEIDAE Zygiella nearctica Gertsch, 1964
75 65 ARANEIDAE Zygiella x-notata (Clerck, 1757)
76 94 CLUBIONIDAE Clubiona abboti L. Koch, 1866
77 94 CLUBIONIDAE Clubiona bryantae Gertsch, 1941
78 94 CLUBIONIDAE Clubiona canadensis Emerton, 1890
79 94 CLUBIONIDAE Clubiona chippewa Gertsch, 1941
80 94 CLUBIONIDAE Clubiona furcata Emerton, 1919
81 94 CLUBIONIDAE Clubiona kastoni Gertsch, 1941
82 94 CLUBIONIDAE Clubiona kulczynskii Lessert, 1905
83 94 CLUBIONIDAE Clubiona lutescens Westring, 1851
84 94 CLUBIONIDAE Clubiona moesta Banks, 1896
85 94 CLUBIONIDAE Clubiona mutata Gertsch, 1941
86 94 CLUBIONIDAE Clubiona norvegica Strand, 1900
87 94 CLUBIONIDAE Clubiona obesa Hentz, 1847
88 94 CLUBIONIDAE Clubiona opeongo Edwards, 1958
89 94 CLUBIONIDAE Clubiona pacifica Banks, 1896
90 94 CLUBIONIDAE Clubiona pallidula (Clerck, 1757)
91 94 CLUBIONIDAE Clubiona pikei Gertsch, 1941
92 94 CLUBIONIDAE Clubiona riparia L. Koch, 1866
93 94 CLUBIONIDAE Clubiona spiralis Emerton, 1909
94 94 CLUBIONIDAE Clubiona trivialis C. L. Koch, 1843
95 94 CLUBIONIDAE Elaver excepta (L. Koch, 1866)
96 95 CORINNIDAE Castianeira cingulata (C. L. Koch, 1841)
97 95 CORINNIDAE Castianeira descripta (Hentz, 1847)
98 95 CORINNIDAE Castianeira gertschi Kaston, 1945
99 95 CORINNIDAE Castianeira longipalpa (Hentz, 1847)
100 95 CORINNIDAE Phrurotimpus borealis (Emerton, 1911)
101 95 CORINNIDAE Phrurotimpus certus Gertsch, 1941
102 95 CORINNIDAE Scotinella pugnata (Emerton, 1890)
103 79 CYBAEIDAE Cybaeota shastae Chamberlin & Ivie, 1937
104 79 CYBAEIDAE Cybaeus eutypus Chamberlin & Ivie, 1932
105 79 CYBAEIDAE Cybaeus morosus Simon, 1886
106 79 CYBAEIDAE Cybaeus reticulatus Simon, 1886
107 79 CYBAEIDAE Cybaeus signifer Simon, 1886
108 79 CYBAEIDAE Cybaeus sinuosus Fox, 1937
109 85 DICTYNIDAE Brommella monticola (Gertsch & Mulaik, 1936)
110 85 DICTYNIDAE Cicurina arcuata Keyserling, 1887
111 85 DICTYNIDAE Cicurina brevis (Emerton, 1889)
112 85 DICTYNIDAE Cicurina gertschi Exline, 1936
113 85 DICTYNIDAE Cicurina idahoana Chamberlin, 1919
114 85 DICTYNIDAE Cicurina intermedia Chamberlin & Ivie, 1933
115 85 DICTYNIDAE Cicurina minnesota Chamberlin & Ivie, 1940
116 85 DICTYNIDAE Cicurina robusta Simon, 1886
117 85 DICTYNIDAE Cicurina simplex Simon, 1886
118 85 DICTYNIDAE Cicurina tersa Simon, 1886
119 85 DICTYNIDAE Dictyna alaskae Chamberlin & Ivie, 1947
120 85 DICTYNIDAE Dictyna arundinacea (Linnaeus, 1758)
121 85 DICTYNIDAE Dictyna bostoniensis Emerton, 1888
122 85 DICTYNIDAE Dictyna brevitarsa Emerton, 1915
123 85 DICTYNIDAE Dictyna major Menge, 1869
124 85 DICTYNIDAE Dictyna minuta Emerton, 1888
125 85 DICTYNIDAE Emblyna annulipes (Blackwall, 1846)
126 85 DICTYNIDAE Emblyna completoides (Ivie, 1947)
127 85 DICTYNIDAE Emblyna jonesae (Roewer, 1955)
128 85 DICTYNIDAE Emblyna maxima (Banks, 1892)
129 85 DICTYNIDAE Emblyna peragrata (Bishop & Ruderman, 1946)
130 85 DICTYNIDAE Emblyna phylax (Gertsch & Ivie, 1936)
131 85 DICTYNIDAE Emblyna sublata (Hentz, 1850)
132 85 DICTYNIDAE Hackmania prominula (Tullgren, 1948)
133 85 DICTYNIDAE Lathys alberta Gertsch, 1946
134 85 DICTYNIDAE Tricholathys spiralis Chamberlin & Ivie, 1935
135 106 GNAPHOSIDAE Callilepis eremella Chamberlin, 1928
136 106 GNAPHOSIDAE Callilepis pluto Banks, 1896
137 106 GNAPHOSIDAE Drassodes gosiutus Chamberlin, 1919
138 106 GNAPHOSIDAE Drassodes mirus Platnick & Shadab, 1976
139 106 GNAPHOSIDAE Drassodes neglectus (Keyserling, 1887)
140 106 GNAPHOSIDAE Drassyllus depressus (Emerton, 1890)
141 106 GNAPHOSIDAE Drassyllus niger (Banks, 1896)
142 106 GNAPHOSIDAE Drassyllus socius Chamberlin, 1922
143 106 GNAPHOSIDAE Gnaphosa borea Kulczynski, 1908
144 106 GNAPHOSIDAE Gnaphosa brumalis Thorell, 1875
145 106 GNAPHOSIDAE Gnaphosa clara (Keyserling, 1887)
146 106 GNAPHOSIDAE Gnaphosa microps Holm, 1939
147 106 GNAPHOSIDAE Gnaphosa muscorum (L. Koch, 1866)
148 106 GNAPHOSIDAE Gnaphosa parvula Banks, 1896
149 106 GNAPHOSIDAE Haplodrassus bicornis (Emerton, 1909)
150 106 GNAPHOSIDAE Haplodrassus chamberlini Platnick & Shadab, 1975
151 106 GNAPHOSIDAE Haplodrassus eunis Chamberlin, 1922
152 106 GNAPHOSIDAE Haplodrassus hiemalis (Emerton, 1909)
153 106 GNAPHOSIDAE Haplodrassus signifer (C. L. Koch, 1839)
154 106 GNAPHOSIDAE Herpyllus ecclesiasticus Hentz, 1832
155 106 GNAPHOSIDAE Micaria aenea Thorell, 1871
156 106 GNAPHOSIDAE Micaria alpina L. Koch, 1872
157 106 GNAPHOSIDAE Micaria constricta Emerton, 1894
158 106 GNAPHOSIDAE Micaria emertoni Gertsch, 1935
159 106 GNAPHOSIDAE Micaria gertschi Barrows & Ivie, 1942
160 106 GNAPHOSIDAE Micaria longispina Emerton, 1911
161 106 GNAPHOSIDAE Micaria mormon Gertsch, 1935
162 106 GNAPHOSIDAE Micaria pulicaria (Sundevall, 1831)
163 106 GNAPHOSIDAE Micaria riggsi Gertsch, 1942
164 106 GNAPHOSIDAE Micaria rossica Thorell, 1875
165 106 GNAPHOSIDAE Micaria tripunctata Holm, 1978
166 106 GNAPHOSIDAE Orodrassus canadensis Platnick & Shadab, 1975
167 106 GNAPHOSIDAE Orodrassus coloradensis (Emerton, 1877)
168 106 GNAPHOSIDAE Sergiolus columbianus (Emerton, 1917)
169 106 GNAPHOSIDAE Sergiolus decoratus Kaston, 1945
170 106 GNAPHOSIDAE Sergiolus iviei Platnick & Shadab, 1981
171 106 GNAPHOSIDAE Sergiolus montanus (Emerton, 1890)
172 106 GNAPHOSIDAE Sosticus insularis (Banks, 1895)
173 106 GNAPHOSIDAE Zelotes exiguoides Platnick & Shadab, 1983
174 106 GNAPHOSIDAE Zelotes fratris Chamberlin, 1920
175 106 GNAPHOSIDAE Zelotes hentzi Barrows, 1945
176 106 GNAPHOSIDAE Zelotes lasalanus Chamberlin, 1928
177 106 GNAPHOSIDAE Zelotes puritanus Chamberlin, 1922
178 106 GNAPHOSIDAE Zelotes sula Lowrie & Gertsch, 1955
179 84 HAHNIIDAE Calymmaria emertoni (Simon, 1897)
180 84 HAHNIIDAE Cryphoeca exlineae Roth, 1988
181 84 HAHNIIDAE Cryphoeca montana Emerton, 1909
182 84 HAHNIIDAE Dirksia cinctipes (Banks, 1896)
183 84 HAHNIIDAE Ethobuella tuonops Chamberlin & Ivie, 1937
184 84 HAHNIIDAE Hahnia arizonica Chamberlin & Ivie, 1942
185 84 HAHNIIDAE Hahnia cinerea Emerton, 1890
186 84 HAHNIIDAE Hahnia glacialis Sorensen, 1898
187 84 HAHNIIDAE Hahnia ononidum Simon, 1875
188 84 HAHNIIDAE Neoantistea agilis (Keyserling, 1887)
189 84 HAHNIIDAE Neoantistea gosiuta Gertsch, 1934
190 84 HAHNIIDAE Neoantistea magna (Keyserling, 1887)
191 62 LINYPHIIDAE Agnyphantes arboreus (Emerton, 1915)
192 62 LINYPHIIDAE Agyneta allosubtilis Loksa, 1965
193 62 LINYPHIIDAE Agyneta dynica Saaristo & Koponen, 1998
194 62 LINYPHIIDAE Agyneta olivacea (Emerton, 1882)
195 62 LINYPHIIDAE Agyneta subtilis (O. P.-Cambridge, 1863)
196 62 LINYPHIIDAE Allomengea dentisetis (Grube, 1861)
197 62 LINYPHIIDAE Allomengea scopigera (Grube, 1859)
198 62 LINYPHIIDAE Aphileta misera (O. P.-Cambridge, 1882)
199 62 LINYPHIIDAE Arcterigone pilifrons (L. Koch, 1879)
200 62 LINYPHIIDAE Arcuphantes fragilis Chamberlin & Ivie, 1943
201 62 LINYPHIIDAE Baryphyma kulczynskii (Eskov, 1979)
202 62 LINYPHIIDAE Bathyphantes brevipes (Emerton, 1917)
203 62 LINYPHIIDAE Bathyphantes brevis (Emerton, 1911)
204 62 LINYPHIIDAE Bathyphantes latescens (Chamberlin, 1919)
205 62 LINYPHIIDAE Bathyphantes pallidus (Banks, 1892)
206 62 LINYPHIIDAE Bathyphantes reprobus (Kulczynski, 1916)
207 62 LINYPHIIDAE Bathyphantes simillimus (L. Koch, 1879)
208 62 LINYPHIIDAE Bathyphantes waneta Ivie, 1969
209 62 LINYPHIIDAE Centromerus furcatus (Emerton, 1882)
210 62 LINYPHIIDAE Centromerus sylvaticus (Blackwall, 1841)
211 62 LINYPHIIDAE Ceraticelus crassiceps Chamberlin & Ivie, 1939
212 62 LINYPHIIDAE Ceraticelus fissiceps (O. P.-Cambridge, 1874)
213 62 LINYPHIIDAE Ceraticelus rowensis Levi & Levi, 1955
214 62 LINYPHIIDAE Ceraticelus similis (Banks, 1892)
215 62 LINYPHIIDAE Ceratinella brunnea Emerton, 1882
216 62 LINYPHIIDAE Cnephalocotes obscurus (Blackwall, 1834)
217 62 LINYPHIIDAE Collinsia clypiella (Chamberlin, 1920)
218 62 LINYPHIIDAE Dactylopisthes video (Chamberlin & Ivie, 1947)
219 62 LINYPHIIDAE Dicymbium elongatum (Emerton, 1882)
220 62 LINYPHIIDAE Diplocentria bidentata (Emerton, 1882)
221 62 LINYPHIIDAE Diplocentria perplexa (Chamberlin & Ivie, 1939)
222 62 LINYPHIIDAE Diplocentria rectangulata (Emerton, 1915)
223 62 LINYPHIIDAE Diplocentria retinax (Crosby & Bishop, 1936)
224 62 LINYPHIIDAE Diplocephalus subrostratus (O. P.-Cambridge, 1873)
225 62 LINYPHIIDAE Diplostyla concolor (Wider, 1834)
226 62 LINYPHIIDAE Dismodicus alticeps Chamberlin & Ivie, 1947
227 62 LINYPHIIDAE Dismodicus decemoculatus (Emerton, 1882)
228 62 LINYPHIIDAE Drapetisca alteranda Chamberlin, 1909
229 62 LINYPHIIDAE Entelecara erythropus (Westring, 1851)
230 62 LINYPHIIDAE Eridantes utibilis Crosby & Bishop, 1933
231 62 LINYPHIIDAE Erigone aletris Crosby & Bishop, 1928
232 62 LINYPHIIDAE Erigone atra Blackwall, 1833
233 62 LINYPHIIDAE Erigone blaesa Crosby & Bishop, 1928
234 62 LINYPHIIDAE Erigone dentigera O. P.-Cambridge, 1874
235 62 LINYPHIIDAE Erigone dentipalpis (Wider, 1834)
236 62 LINYPHIIDAE Estrandia grandaeva (Keyserling, 1886)
237 62 LINYPHIIDAE Eulaira arctoa Holm, 1960
238 62 LINYPHIIDAE Gnathonarium suppositum (Kulczynski, 1885)
239 62 LINYPHIIDAE Gonatium crassipalpum Bryant, 1933
240 62 LINYPHIIDAE Grammonota angusta Dondale, 1959
241 62 LINYPHIIDAE Grammonota gentilis Banks, 1898
242 62 LINYPHIIDAE Grammonota gigas (Banks, 1896)
243 62 LINYPHIIDAE Helophora insignis (Blackwall, 1841)
244 62 LINYPHIIDAE Hilaira canaliculata (Emerton, 1915)
245 62 LINYPHIIDAE Hilaira herniosa (Thorell, 1875)
246 62 LINYPHIIDAE Hilaira nubigena Hull, 1911
247 62 LINYPHIIDAE Horcotes quadricristatus (Emerton, 1882)
248 62 LINYPHIIDAE Hybauchenidium cymbadentatum (Crosby & Bishop, 1935)
249 62 LINYPHIIDAE Hybauchenidium gibbosum (Sorensen, 1898)
250 62 LINYPHIIDAE Hypomma marxi (Keyserling, 1886)
251 62 LINYPHIIDAE Hypselistes florens (O. P.-Cambridge, 1875)
252 62 LINYPHIIDAE Hypselistes jacksoni (O. P.-Cambridge, 1902)
253 62 LINYPHIIDAE Improphantes complicatus (Emerton, 1882)
254 62 LINYPHIIDAE Incestophantes duplicatus (Emerton, 1913)
255 62 LINYPHIIDAE Incestophantes lamprus (Chamberlin, 1920)
256 62 LINYPHIIDAE Incestophantes washingtoni (Zorsch, 1937)
257 62 LINYPHIIDAE Islandiana falsifica (Keyserling, 1886)
258 62 LINYPHIIDAE Islandiana longisetosa (Emerton, 1882)
259 62 LINYPHIIDAE Islandiana muma Ivie, 1965
260 62 LINYPHIIDAE Kaestneria pullata (O. P.-Cambridge, 1863)
261 62 LINYPHIIDAE Lepthyphantes alpinus (Emerton, 1882)
262 62 LINYPHIIDAE Lepthyphantes intricatus (Emerton, 1911)
263 62 LINYPHIIDAE Lepthyphantes turbatrix (O. P.-Cambridge, 1877)
264 62 LINYPHIIDAE Linyphantes orcinus (Emerton, 1917)
265 62 LINYPHIIDAE Macrargus multesimus (O. P.-Cambridge, 1875)
266 62 LINYPHIIDAE Maro amplus Dondale & Buckle, 2001
267 62 LINYPHIIDAE Maso sundevalli (Westring, 1851)
268 62 LINYPHIIDAE Megalepthyphantes nebulosus (Sundevall, 1830)
269 62 LINYPHIIDAE Meioneta lophophor (Chamberlin & Ivie, 1933)
270 62 LINYPHIIDAE Meioneta simplex (Emerton, 1926)
271 62 LINYPHIIDAE Mermessus trilobatus (Emerton, 1882)
272 62 LINYPHIIDAE Microlinyphia mandibulata (Emerton, 1882)
273 62 LINYPHIIDAE Microneta viaria (Blackwall, 1841)
274 62 LINYPHIIDAE Neriene clathrata (Sundevall, 1830)
275 62 LINYPHIIDAE Neriene radiata (Walckenaer, 1842)
276 62 LINYPHIIDAE Oedothorax alascensis (Banks, 1900)
277 62 LINYPHIIDAE Oedothorax trilobatus (Banks, 1896)
278 62 LINYPHIIDAE Oreoneta beringiana Saaristo & Marusik, 2004
279 62 LINYPHIIDAE Oreonetides rotundus (Emerton, 1913)
280 62 LINYPHIIDAE Oreonetides vaginatus (Thorell, 1872)
281 62 LINYPHIIDAE Origanates rostratus (Emerton, 1882)
282 62 LINYPHIIDAE Pelecopsis bishopi Kaston, 1945
283 62 LINYPHIIDAE Pelecopsis mengei (Simon, 1884)
284 62 LINYPHIIDAE Pelecopsis moesta (Banks, 1892)
285 62 LINYPHIIDAE Pelecopsis sculpta (Emerton, 1917)
286 62 LINYPHIIDAE Perro polaris (Eskov, 1986)
287 62 LINYPHIIDAE Phlattothrata parva (Kulczynski, 1926)
288 62 LINYPHIIDAE Pityohyphantes costatus (Hentz, 1850)
289 62 LINYPHIIDAE Pityohyphantes cristatus Chamberlin & Ivie, 1942
290 62 LINYPHIIDAE Pityohyphantes limitaneus (Emerton, 1915)
291 62 LINYPHIIDAE Pityohyphantes subarcticus Chamberlin & Ivie, 1943
292 62 LINYPHIIDAE Pocadicnemis americana Millidge, 1976
293 62 LINYPHIIDAE Pocadicnemis juncea Locket & Millidge, 1953
294 62 LINYPHIIDAE Poeciloneta agressa (Chamberlin & Ivie, 1943)
295 62 LINYPHIIDAE Porrhomma convexum (Westring, 1851)
296 62 LINYPHIIDAE Porrhomma ocella Chamberlin & Ivie, 1943
297 62 LINYPHIIDAE Porrhomma terrestre (Emerton, 1882)
298 62 LINYPHIIDAE Satilatlas gertschi Millidge, 1981
299 62 LINYPHIIDAE Sciastes truncatus (Emerton, 1882)
300 62 LINYPHIIDAE Scironis tarsalis (Emerton, 1911)
301 62 LINYPHIIDAE Scotinotylus alpinus (Banks, 1896)
302 62 LINYPHIIDAE Scotinotylus sacer (Crosby, 1929)
303 62 LINYPHIIDAE Scotinotylus sanctus (Crosby, 1929)
304 62 LINYPHIIDAE Scyletria inflata Bishop & Crosby, 1938
305 62 LINYPHIIDAE Scyletria jona Bishop & Crosby, 1938
306 62 LINYPHIIDAE Semljicola obtusus (Emerton, 1915)
307 62 LINYPHIIDAE Sisicottus montanus (Emerton, 1882)
308 62 LINYPHIIDAE Sisicottus nesides (Chamberlin, 1921)
309 62 LINYPHIIDAE Sisicus apertus (Holm, 1939)
310 62 LINYPHIIDAE Sisis rotundus (Emerton, 1925)
311 62 LINYPHIIDAE Souessa spinifera (O. P.-Cambridge, 1874)
312 62 LINYPHIIDAE Stemonyphantes blauveltae Gertsch, 1951
313 62 LINYPHIIDAE Styloctetor stativus (Simon, 1881)
314 62 LINYPHIIDAE Tapinocyba simplex (Emerton, 1882)
315 62 LINYPHIIDAE Tapinopa bilineata Banks, 1893
316 62 LINYPHIIDAE Tennesseellum formica (Emerton, 1882)
317 62 LINYPHIIDAE Tenuiphantes tenuis (Blackwall, 1852)
318 62 LINYPHIIDAE Tenuiphantes zebra (Emerton, 1882)
319 62 LINYPHIIDAE Tibioplus diversus (L. Koch, 1879)
320 62 LINYPHIIDAE Tiso aestivus (L. Koch, 1872)
321 62 LINYPHIIDAE Tmeticus ornatus (Emerton, 1914)
322 62 LINYPHIIDAE Tunagyna debilis (Banks, 1892)
323 62 LINYPHIIDAE Walckenaeria arctica Millidge, 1983
324 62 LINYPHIIDAE Walckenaeria atrotibialis (O. P.-Cambridge, 1878)
325 62 LINYPHIIDAE Walckenaeria auranticeps (Emerton, 1882)
326 62 LINYPHIIDAE Walckenaeria castanea (Emerton, 1882)
327 62 LINYPHIIDAE Walckenaeria communis (Emerton, 1882)
328 62 LINYPHIIDAE Walckenaeria cornuella (Chamberlin & Ivie, 1939)
329 62 LINYPHIIDAE Walckenaeria cuspidata brevicula (Crosby & Bishop, 1931)
330 62 LINYPHIIDAE Walckenaeria directa (O. P.-Cambridge, 1874)
331 62 LINYPHIIDAE Walckenaeria dondalei Millidge, 1983
332 62 LINYPHIIDAE Walckenaeria exigua Millidge, 1983
333 62 LINYPHIIDAE Walckenaeria karpinskii (O. P.-Cambridge, 1873)
334 62 LINYPHIIDAE Walckenaeria kochi (O. P.-Cambridge, 1872)
335 62 LINYPHIIDAE Walckenaeria lepida (Kulczynski, 1885)
336 62 LINYPHIIDAE Walckenaeria prominens Millidge, 1983
337 62 LINYPHIIDAE Walckenaeria spiralis (Emerton, 1882)
338 62 LINYPHIIDAE Walckenaeria tricornis (Emerton, 1882)
339 62 LINYPHIIDAE Wubana drassoides (Emerton, 1882)
340 62 LINYPHIIDAE Wubana pacifica (Banks, 1896)
341 62 LINYPHIIDAE Wubana reminiscens Chamberlin, 1948
342 62 LINYPHIIDAE Zornella cultrigera (L. Koch, 1879)
343 93 LIOCRANIDAE Agroeca ornata Banks, 1892
344 93 LIOCRANIDAE Agroeca pratensis Emerton, 1890
345 66 LYCOSIDAE Acantholycosa solituda (Levi & Levi, 1951)
346 66 LYCOSIDAE Alopecosa aculeata (Clerck, 1757)
347 66 LYCOSIDAE Alopecosa kochi (Keyserling, 1877)
348 66 LYCOSIDAE Arctosa alpigena (Doleschall, 1852)
349 66 LYCOSIDAE Arctosa insignita (Thorell, 1872)
350 66 LYCOSIDAE Arctosa raptor (Kulczynski, 1885)
351 66 LYCOSIDAE Arctosa rubicunda (Keyserling, 1877)
352 66 LYCOSIDAE Geolycosa missouriensis (Banks, 1895)
353 66 LYCOSIDAE Geolycosa wrighti (Emerton, 1912)
354 66 LYCOSIDAE Hogna frondicola (Emerton, 1885)
355 66 LYCOSIDAE Pardosa algens (Kulczynski, 1908)
356 66 LYCOSIDAE Pardosa altamontis Chamberlin & Ivie, 1946
357 66 LYCOSIDAE Pardosa anomala Gertsch, 1933
358 66 LYCOSIDAE Pardosa atrata (Thorell, 1873)
359 66 LYCOSIDAE Pardosa bucklei Kronestedt, 1975
360 66 LYCOSIDAE Pardosa concinna (Thorell, 1877)
361 66 LYCOSIDAE Pardosa distincta (Blackwall, 1846)
362 66 LYCOSIDAE Pardosa dorsalis Banks, 1894
363 66 LYCOSIDAE Pardosa dorsuncata Lowrie & Dondale, 1981
364 66 LYCOSIDAE Pardosa dromaea (Thorell, 1878)
365 66 LYCOSIDAE Pardosa furcifera (Thorell, 1875)
366 66 LYCOSIDAE Pardosa fuscula (Thorell, 1875)
367 66 LYCOSIDAE Pardosa glacialis (Thorell, 1872)
368 66 LYCOSIDAE Pardosa groenlandica (Thorell, 1872)
369 66 LYCOSIDAE Pardosa hyperborea (Thorell, 1872)
370 66 LYCOSIDAE Pardosa labradorensis (Thorell, 1875)
371 66 LYCOSIDAE Pardosa lapidicina Emerton, 1885
372 66 LYCOSIDAE Pardosa mackenziana (Keyserling, 1877)
373 66 LYCOSIDAE Pardosa modica (Blackwall, 1846)
374 66 LYCOSIDAE Pardosa moesta Banks, 1892
375 66 LYCOSIDAE Pardosa mulaiki Gertsch, 1934
376 66 LYCOSIDAE Pardosa ontariensis Gertsch, 1933
377 66 LYCOSIDAE Pardosa podhorskii (Kulczynski, 1907)
378 66 LYCOSIDAE Pardosa saxatilis (Hentz, 1844)
379 66 LYCOSIDAE Pardosa sinistra (Thorell, 1877)
380 66 LYCOSIDAE Pardosa sternalis (Thorell, 1877)
381 66 LYCOSIDAE Pardosa tesquorum (Odenwall, 1901)
382 66 LYCOSIDAE Pardosa uintana Gertsch, 1933
383 66 LYCOSIDAE Pardosa xerampelina (Keyserling, 1877)
384 66 LYCOSIDAE Pirata bryantae Kurata, 1944
385 66 LYCOSIDAE Pirata canadensis Dondale & Redner, 1981
386 66 LYCOSIDAE Pirata insularis Emerton, 1885
387 66 LYCOSIDAE Pirata minutus Emerton, 1885
388 66 LYCOSIDAE Pirata piraticus (Clerck, 1757)
389 66 LYCOSIDAE Schizocosa avida (Walckenaer, 1837)
390 66 LYCOSIDAE Schizocosa communis (Emerton, 1885)
391 66 LYCOSIDAE Schizocosa crassipalpata Roewer, 1951
392 66 LYCOSIDAE Schizocosa mccooki (Montgomery, 1904)
393 66 LYCOSIDAE Schizocosa minnesotensis (Gertsch, 1934)
394 66 LYCOSIDAE Schizocosa saltatrix (Hentz, 1844)
395 66 LYCOSIDAE Trochosa ruricola (De Geer, 1778)
396 66 LYCOSIDAE Trochosa terricola Thorell, 1856
397 46 MIMETIDAE Ero canionis Chamberlin & Ivie, 1935
398 91 MITURGIDAE Cheiracanthium mildei L. Koch, 1864
399 59 MYSMENIDAE Trogloneta paradoxa Gertsch, 1960
400 69 OXYOPIDAE Oxyopes scalaris Hentz, 1845
401 109 PHILODROMIDAE Apollophanes margareta Lowrie & Gertsch, 1955
402 109 PHILODROMIDAE Ebo bucklei Platnick, 1972
403 109 PHILODROMIDAE Ebo iviei Sauer & Platnick, 1972
404 109 PHILODROMIDAE Philodromus alascensis Keyserling, 1884
405 109 PHILODROMIDAE Philodromus cespitum (Walckenaer, 1802)
406 109 PHILODROMIDAE Philodromus dispar Walckenaer, 1826
407 109 PHILODROMIDAE Philodromus histrio (Latreille, 1819)
408 109 PHILODROMIDAE Philodromus imbecillus Keyserling, 1880
409 109 PHILODROMIDAE Philodromus josemitensis Gertsch, 1934
410 109 PHILODROMIDAE Philodromus mysticus Dondale & Redner, 1975
411 109 PHILODROMIDAE Philodromus oneida Levi, 1951
412 109 PHILODROMIDAE Philodromus pernix Blackwall, 1846
413 109 PHILODROMIDAE Philodromus placidus Banks, 1892
414 109 PHILODROMIDAE Philodromus praelustris Keyserling, 1880
415 109 PHILODROMIDAE Philodromus rufus Walckenaer, 1826
416 109 PHILODROMIDAE Philodromus rufus pacificus Banks, 1898
417 109 PHILODROMIDAE Philodromus rufus quartus Dondale & Redner, 1968
418 109 PHILODROMIDAE Philodromus rufus vibrans Dondale, 1964
419 109 PHILODROMIDAE Philodromus spectabilis Keyserling, 1880
420 109 PHILODROMIDAE Philodromus vulgaris (Hentz, 1847)
421 109 PHILODROMIDAE Thanatus coloradensis Keyserling, 1880
422 109 PHILODROMIDAE Thanatus formicinus (Clerck, 1757)
423 109 PHILODROMIDAE Thanatus striatus C. L. Koch, 1845
424 109 PHILODROMIDAE Tibellus asiaticus Kulczynski, 1908
425 109 PHILODROMIDAE Tibellus chamberlini Gertsch, 1933
426 109 PHILODROMIDAE Tibellus maritimus (Menge, 1875)
427 109 PHILODROMIDAE Tibellus oblongus (Walckenaer, 1802)
428 28 PHOLCIDAE Pholcophora americana Banks, 1896
429 28 PHOLCIDAE Pholcus opilionoides (Schrank, 1781)
430 68 PISAURIDAE Dolomedes striatus Giebel, 1869
431 68 PISAURIDAE Dolomedes tenebrosus Hentz, 1844
432 68 PISAURIDAE Dolomedes triton (Walckenaer, 1837)
433 111 SALTICIDAE Admestina tibialis (C. L. Koch, 1846)
434 111 SALTICIDAE Chalcoscirtus carbonarius Emerton, 1917
435 111 SALTICIDAE Dendryphantes nigromaculatus (Keyserling, 1885)
436 111 SALTICIDAE Eris militaris (Hentz, 1845)
437 111 SALTICIDAE Euophrys monadnock Emerton, 1891
438 111 SALTICIDAE Evarcha hoyi (Peckham & Peckham, 1883)
439 111 SALTICIDAE Evarcha proszynskii Marusik & Logunov, 1998
440 111 SALTICIDAE Habronattus captiosus (Gertsch, 1934)
441 111 SALTICIDAE Habronattus cuspidatus Griswold, 1987
442 111 SALTICIDAE Habronattus hirsutus (Peckham & Peckham, 1888)
443 111 SALTICIDAE Habronattus oregonensis (Peckham & Peckham, 1888)
444 111 SALTICIDAE Habronattus sansoni (Emerton, 1915)
445 111 SALTICIDAE Hentzia mitrata (Hentz, 1846)
446 111 SALTICIDAE Neon nelli Peckham & Peckham, 1888
447 111 SALTICIDAE Neon reticulatus (Blackwall, 1853)
448 111 SALTICIDAE Pelegrina aeneola (Curtis, 1892)
449 111 SALTICIDAE Pelegrina flaviceps (Kaston, 1973)
450 111 SALTICIDAE Pelegrina flavipes (Peckham & Peckham, 1888)
451 111 SALTICIDAE Pelegrina galathea (Walckenaer, 1837)
452 111 SALTICIDAE Pelegrina insignis (Banks, 1892)
453 111 SALTICIDAE Pelegrina montana (Emerton, 1891)
454 111 SALTICIDAE Pelegrina proterva (Walckenaer, 1837)
455 111 SALTICIDAE Pellenes montanus (Emerton, 1894)
456 111 SALTICIDAE Phidippus borealis Banks, 1895
457 111 SALTICIDAE Phidippus cryptus Edwards, 2004
458 111 SALTICIDAE Phidippus johnsoni (Peckham & Peckham, 1883)
459 111 SALTICIDAE Phidippus purpuratus Keyserling, 1885
460 111 SALTICIDAE Phidippus whitmani Peckham & Peckham, 1909
461 111 SALTICIDAE Salticus scenicus (Clerck, 1757)
462 111 SALTICIDAE Sibianor aemulus (Gertsch, 1934)
463 111 SALTICIDAE Sitticus finschi (L. Koch, 1879)
464 111 SALTICIDAE Sitticus floricola (C. L. Koch, 1837)
465 111 SALTICIDAE Sitticus ranieri (Peckham & Peckham, 1909)
466 111 SALTICIDAE Sitticus striatus Emerton, 1911
467 111 SALTICIDAE Synageles canadensis Cutler, 1988
468 111 SALTICIDAE Talavera minuta (Banks, 1895)
469 111 SALTICIDAE Terralonus californicus (Peckham & Peckham, 1888)
470 111 SALTICIDAE Tutelina similis (Banks, 1895)
471 26 TELEMIDAE Usofila pacifica (Banks, 1894)
472 63 TETRAGNATHIDAE Glenognatha foxi (McCook, 1894)
473 63 TETRAGNATHIDAE Leucauge venusta (Walckenaer, 1842)
474 63 TETRAGNATHIDAE Meta ovalis (Gertsch, 1933)
475 63 TETRAGNATHIDAE Metellina curtisi (McCook, 1894)
476 63 TETRAGNATHIDAE Metellina mimetoides Chamberlin & Ivie, 1941
477 63 TETRAGNATHIDAE Metellina segmentata (Clerck, 1757)
478 63 TETRAGNATHIDAE Pachygnatha autumnalis Marx, 1884
479 63 TETRAGNATHIDAE Pachygnatha brevis Keyserling, 1884
480 63 TETRAGNATHIDAE Pachygnatha clercki Sundevall, 1823
481 63 TETRAGNATHIDAE Pachygnatha dorothea McCook, 1894
482 63 TETRAGNATHIDAE Pachygnatha furcillata Keyserling, 1884
483 63 TETRAGNATHIDAE Pachygnatha tristriata C. L. Koch, 1845
484 63 TETRAGNATHIDAE Pachygnatha xanthostoma C. L. Koch, 1845
485 63 TETRAGNATHIDAE Tetragnatha caudata Emerton, 1884
486 63 TETRAGNATHIDAE Tetragnatha dearmata Thorell, 1873
487 63 TETRAGNATHIDAE Tetragnatha elongata Walckenaer, 1842
488 63 TETRAGNATHIDAE Tetragnatha extensa (Linnaeus, 1758)
489 63 TETRAGNATHIDAE Tetragnatha guatemalensis O. P.-Cambridge, 1889
490 63 TETRAGNATHIDAE Tetragnatha laboriosa Hentz, 1850
491 63 TETRAGNATHIDAE Tetragnatha pallescens F. O. P.-Cambridge, 1903
492 63 TETRAGNATHIDAE Tetragnatha shoshone Levi, 1981
493 63 TETRAGNATHIDAE Tetragnatha straminea Emerton, 1884
494 63 TETRAGNATHIDAE Tetragnatha vermiformis Emerton, 1884
495 63 TETRAGNATHIDAE Tetragnatha versicolor Walckenaer, 1842
496 63 TETRAGNATHIDAE Tetragnatha viridis Walckenaer, 1842
497 55 THERIDIIDAE Achaearanea simulans (Thorell, 1875)
498 55 THERIDIIDAE Crustulina guttata (Wider, 1834)
499 55 THERIDIIDAE Crustulina sticta (O. P.-Cambridge, 1861)
500 55 THERIDIIDAE Dipoena nigra (Emerton, 1882)
501 55 THERIDIIDAE Enoplognatha caricis (Fickert, 1876)
502 55 THERIDIIDAE Enoplognatha intrepida (Sorensen, 1898)
503 55 THERIDIIDAE Enoplognatha ovata (Clerck, 1757)
504 55 THERIDIIDAE Enoplognatha wyuta Chamberlin & Ivie, 1942
505 55 THERIDIIDAE Euryopis argentea Emerton, 1882
506 55 THERIDIIDAE Keijia tincta (Walckenaer, 1802)
507 55 THERIDIIDAE Latrodectus hesperus Chamberlin & Ivie, 1935
508 55 THERIDIIDAE Neottiura bimaculata (Linnaeus, 1767)
509 55 THERIDIIDAE Parasteatoda tepidariorum (C. L. Koch, 1841)
510 55 THERIDIIDAE Robertus banksi (Kaston, 1946)
511 55 THERIDIIDAE Robertus fuscus (Emerton, 1894)
512 55 THERIDIIDAE Robertus vigerens (Chamberlin & Ivie, 1933)
513 55 THERIDIIDAE Rugathodes aurantius (Emerton, 1915)
514 55 THERIDIIDAE Rugathodes sexpunctatus (Emerton, 1882)
515 55 THERIDIIDAE Steatoda albomaculata (De Geer, 1778)
516 55 THERIDIIDAE Steatoda borealis (Hentz, 1850)
517 55 THERIDIIDAE Steatoda grossa (C. L. Koch, 1838)
518 55 THERIDIIDAE Steatoda hespera Chamberlin & Ivie, 1933
519 55 THERIDIIDAE Takayus lyricus (Walckenaer, 1842)
520 55 THERIDIIDAE Theonoe stridula Crosby, 1906
521 55 THERIDIIDAE Theridion agrifoliae Levi, 1957
522 55 THERIDIIDAE Theridion albidum Banks, 1895
523 55 THERIDIIDAE Theridion differens Emerton, 1882
524 55 THERIDIIDAE Theridion frondeum Hentz, 1850
525 55 THERIDIIDAE Theridion hemerobium Simon, 1914
526 55 THERIDIIDAE Theridion impressum L. Koch, 1881
527 55 THERIDIIDAE Theridion lawrencei Gertsch & Archer, 1942
528 55 THERIDIIDAE Theridion montanum Emerton, 1882
529 55 THERIDIIDAE Theridion murarium Emerton, 1882
530 55 THERIDIIDAE Theridion neomexicanum Banks, 1901
531 55 THERIDIIDAE Theridion ohlerti (Thorell, 1870)
532 55 THERIDIIDAE Theridion pictum (Walckenaer, 1802)
533 55 THERIDIIDAE Theridion saanichum Chamberlin & Ivie, 1947
534 55 THERIDIIDAE Theridion varians Hahn, 1833
535 55 THERIDIIDAE Theridula emertoni Levi, 1954
536 55 THERIDIIDAE Thymoites minnesota Levi, 1964
537 56 THERIDIOSOMATIDAE Theridiosoma gemmosum (L. Koch, 1877)
538 110 THOMISIDAE Bassaniana utahensis (Gertsch, 1932)
539 110 THOMISIDAE Bassaniana versicolor (Keyserling, 1880)
540 110 THOMISIDAE Misumena vatia (Clerck, 1757)
541 110 THOMISIDAE Misumenops asperatus (Hentz, 1847)
542 110 THOMISIDAE Ozyptila beaufortensis Strand, 1916
543 110 THOMISIDAE Ozyptila conspurcata Thorell, 1877
544 110 THOMISIDAE Ozyptila gertschi Kurata, 1944
545 110 THOMISIDAE Ozyptila sincera canadensis Dondale & Redner, 1975
546 110 THOMISIDAE Tmarus angulatus (Walckenaer, 1837)
547 110 THOMISIDAE Xysticus alboniger Turnbull, Dondale & Redner, 1965
548 110 THOMISIDAE Xysticus ampullatus Turnbull, Dondale & Redner, 1965
549 110 THOMISIDAE Xysticus benefactor Keyserling, 1880
550 110 THOMISIDAE Xysticus britcheri Gertsch, 1934
551 110 THOMISIDAE Xysticus canadensis Gertsch, 1934
552 110 THOMISIDAE Xysticus chippewa Gertsch, 1953
553 110 THOMISIDAE Xysticus cunctator Thorell, 1877
554 110 THOMISIDAE Xysticus discursans Keyserling, 1880
555 110 THOMISIDAE Xysticus elegans Keyserling, 1880
556 110 THOMISIDAE Xysticus ellipticus Turnbull, Dondale & Redner, 1965
557 110 THOMISIDAE Xysticus emertoni Keyserling, 1880
558 110 THOMISIDAE Xysticus ferox (Hentz, 1847)
559 110 THOMISIDAE Xysticus keyserlingi Bryant, 1930
560 110 THOMISIDAE Xysticus locuples Keyserling, 1880
561 110 THOMISIDAE Xysticus luctans (C. L. Koch, 1845)
562 110 THOMISIDAE Xysticus luctuosus (Blackwall, 1836)
563 110 THOMISIDAE Xysticus montanensis Keyserling, 1887
564 110 THOMISIDAE Xysticus nigromaculatus Keyserling, 1884
565 110 THOMISIDAE Xysticus obscurus Collett, 1877
566 110 THOMISIDAE Xysticus pellax O. P.-Cambridge, 1894
567 110 THOMISIDAE Xysticus posti Sauer, 1968
568 110 THOMISIDAE Xysticus pretiosus Gertsch, 1934
569 110 THOMISIDAE Xysticus punctatus Keyserling, 1880
570 110 THOMISIDAE Xysticus triangulosus Emerton, 1894
571 110 THOMISIDAE Xysticus triguttatus Keyserling, 1880
572 88 TITANOECIDAE Titanoeca nivalis Simon, 1874
573 51 ULOBORIDAE Hyptiotes cavatus (Hentz, 1847)
574 51 ULOBORIDAE Hyptiotes gertschi Chamberlin & Ivie, 1935
575 51 ULOBORIDAE Uloborus glomosus (Walckenaer, 1842)