The Nearctic Spider Database, http://www.canadianarachnology.org/data/spiders/22940

Cybaeopsis euopla (Bishop & Crosby, 1935)

FAMILY: AMAUROBIIDAE Thorell, 1870
    Genus: Cybaeopsis Strand, 1907

        Species: Cybaeopsis euopla (Bishop & Crosby, 1935)

Author of this page: Shorthouse, David P. (Page is in progress)

General Comments: Cybeaopsis euopla (Bishop & Crosby, 1935) has been collected from Nova Scotia and Newfoundland and Labrador west to British Columbia and north to the western part of the Northwest Territories. In the United States, it has been recorded in Maine, Minnesota, and Wisconsin (Leech, 1972).

Common Names

Family Common Name:  hackledmesh weavers
Genus Common Name:  none
Species Common Name:  none

Distribution

Global Distribution: USA, Canada
Nearctic States & Provinces:   AB ON SK
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:  deep deciduous leaf litter, bogs (Aitchison-Benell & Dondale, 1990; Leech, 1972).
Life & Natural History:  Males of Cybaeopsis euopla (Bishop & Crosby, 1935) have been collected from April to October, but peak numbers are usually in May and June. Females have been collected from April to November with peak numbers in May and June (Leech, 1972).

Seasonality of Specimen Records:


Image(s) of Habitus:


Credit: Hancock, John

Details About Males

Description:  The carapace is uniformly pale orange-yellow as are the femora of the legs, though the legs may darken distally. The chelicerae are pale brown. The abdomen is brown-gray or dark gray and its dorsum may be unmarked in some specimens, but usually has two pairs of anterior spots and indistinct or incomplete posterior chevrons (Leech, 1972).

Male Dimensions:

A+B = 5 mm  A = 2.2 mm  C = 1.6 mm 

Image of External Male Genitalia:  (image not yet available)

Details About Females

Description:  The carapace is yellow-orange and darkens toward the anterior end. Other characteristics are much the same as males.

Female Dimensions:

A+B = 7 mm  A = 2.6 mm  C = 1.8 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

Callioplus euoplus Bishop & Crosby 1935
Cybaeopsis euopla Bishop & Crosby 1935
Callioplus euoplus Lehtinen 1967
Callioplus euoplus Leech 1972
Cybaeopsis euopla Paquin & Dupérré 2003

Taxonomic References

Bishop, S. C. & C. R. Crosby. 1935. A new genus and two new species of Dictynidae (Araneae). Proc. biol. Soc. Wash. 48: 45-48.

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.

Paquin, P. & N. Dupérré. 2003. Guide d'identification des araignées de Québec. Fabreries, Suppl. 11 1-251.

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 Cybaeopsis Strand, 1907‡‡

C. armipotens (Bishop & Crosby, 1926) ...............USA
C. hoplites (Bishop & Crosby, 1926) ...............USA
C. hoplomacha (Bishop & Crosby, 1926) ...............USA
C. macaria (Chamberlin, 1947) ...............USA
C. pantopla (Bishop & Crosby, 1935) ...............USA
C. spenceri (Leech, 1972) ...............USA
C. tibialis (Emerton, 1888) ...............USA, Canada
C. wabritaska (Leech, 1972) ...............USA, Canada, Alaska

‡‡May also include species with Palearctic distribution

Page Reference:

Shorthouse, David P. in prep. Taxonomic and natural history description of FAM: AMAUROBIIDAE, Cybaeopsis euopla (Bishop & Crosby, 1935). In: The Nearctic Spider Database. David P. Shorthouse (editor). World Wide Web electronic publication. Direct link: http://www.canadianarachnology.org/data/spiders/22940 (Accessed: 10/13/2008 1:15:30 PM).

Author Email Address: dshorthouse@eol.org
Text Last Modified: 2006-11-07T16:06:14Z