Nearctic States & Provinces: AB MB SK YT CO MT
Collection Locales Mapped by Year Collected:
The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/22667
Arctobius agelenoides (Emerton, 1919)
FAMILY: AMAUROBIIDAE Thorell, 1870
Genus: Arctobius Lehtinen, 1967
Species: Arctobius agelenoides (Emerton, 1919)
Author of this page: Shorthouse, David P. (Page complete and awaiting review)
General Comments: Specimens have also been collected in Finnish and Russian Lappland and are indistinguishable from those in North America.
Common Names
Family Common Name:
hackledmesh weavers
Genus Common Name:
none
Species Common Name:
none
Distribution
Global Distribution: Holarctic
Nearctic States & Provinces:
AB MB SK YT CO MT
Collection Locales Mapped by Year Collected:
Natural History, Phenology & Image(s)
Feeding Guild:‡
sheet web builders
‡Feeding guild when noted defined by Uetz, G. W., J. Halaj, and A. B. Cady. 1999. Guild structure of spiders in major crops. Journal of Arachnology 27:270-280.
Recorded Habitats:
under rocks in talus slopes, under stones in dense coniferous woods, under stones on limestone outcrops in mountains, bogs, moss
Life & Natural History:
Males have been collected from July to November and females from May to November. Food consists of ants and other spiders. Egg sacs have been collected in July and September. Members of this species are aggressive and will attack anything approaching the entrance of their retreats.
Seasonality of Specimen Records:
Image(s) of Habitus:
(images not yet available)
Details About Males
Description:
Carapace thoracic region edged with pale orange yellow and its center mottled and streaked light brown. Cephalic region dark brown to yellow from clypeus to dorsal, posterior end. Legs darkened distally and much the same as edge of thoracic region of carapace. May also have pale annulations on dorsal sides from patellae to tips. Chelicerae dark brown and may be darker than sternum. Opisthosoma light brown ventrally, darkened dorsally to black.
Male Dimensions:
A+B = 8 mm
A = 3.7 mm
C = 2.6 mm
Image of External Male Genitalia:
(image not yet available)
Details About Females
Description:
As male.
Female Dimensions:
A+B = 10 mm
A = 4.5 mm
C = 3 mm
Image of Epigynum:
(image not yet available)
Descriptions Source:
Leech, R. E. 1972. A revision of the Nearctic Amaurobiidae (Arachnida: Araneida). Mem. ent. Soc. Can. 84: 1-182.
Synonyms and Chresonyms†
| Amaurobius agelenoides Emerton 1919 |
| Arctobius agelenoides Emerton 1919 |
| Hesperauximus agelenoides Chamberlin 1947 |
| Hesperauximus agelenoides Bishop 1949 |
| Arctobius agelenoides Lehtinen 1967 |
| Arctobius agelenoides Leech 1972 |
| Arctobius agelenoides Palmgren 1977 |
| Arctobius agelenoides Danilov 1994 |
| Arctobius agelenoides Almquist 2006 |
Taxonomic References†
Almquist, S. 2006. Swedish Araneae, part 2--families Dictynidae to Salticidae. Insect Syst. Ecol., Suppl. 63: 285-601.
Bishop, S. C. 1949. Spiders of the Nueltin Lake Expedition, Keewatin, 1947. Can. Ent. 81: 101-104.
Chamberlin, R. V. 1947. A summary of the known North American Amaurobiidae. Bull. Univ. Utah 38(8): 1-31.
Danilov, S. N. 1994. Cribellate spiders (Aranei, Cribellatae) of Transbaicalia. Ent. Obozr. 73: 200-209.
Emerton, J. H. 1919. New spiders from Canada and the adjoining states, No. 2. Canad. Ent. 51: 105-108.
Leech, R. E. 1972. A revision of the Nearctic Amaurobiidae (Arachnida: Araneida). Mem. ent. Soc. Can. 84: 1-182.
Lehtinen, P. T. 1967. Classification of the cribellate spiders and some allied families, with notes on the evolution of the suborder Araneomorpha. Ann. Zool. Fenn. 4: 199-468.
Palmgren, P. 1977. Die Spinnenfauna Finnlands und Ostfennoskandiens. VIII. Argyronetidae, Agelenidae, Hahniidae, Dictynidae, Amaurobiidae, Titanoecidae, Segestriidae, Pholcidae und Sicariidae. Fauna fenn. 30: 1-50.
†Nomenclature and taxonomic references from the World Spider Catalog accessible at http://research.amnh.org/entomology/spiders/catalog/AMAUROBIIDAE.html
Natural History References
Aitchison-Benell, C. W. & C. D. Dondale. 1990. A checklist of Manitoba spiders (Araneae) with notes on geographic relationships. Naturaliste can. 117: 215-237.
Leech, R. E. 1972. A revision of the Nearctic Amaurobiidae (Arachnida: Araneida). Mem. ent. Soc. Can. 84: 1-182.
Other Nearctic Members of Genus Arctobius Lehtinen, 1967‡‡
No Other Species
‡‡May also include species with Palearctic distribution
Page Reference:
Shorthouse, David P. submitted. Taxonomic and natural history description of FAM: AMAUROBIIDAE, Arctobius agelenoides (Emerton, 1919).
In: The Nearctic Spider Database. David P. Shorthouse (editor). World Wide Web electronic publication. Direct link: http://www.canadianarachnology.org/data/spiders/22667 (Accessed: 12/4/2008 2:39:58 PM).
Author Email Address: dshorthouse@eol.org
Text Last Modified: 2005-06-15T22:54:52Z