Bathyphantes canadensis

(Emerton, 1882)

Canada Sheetweb Weaver

Bathyphantes canadensis is a small sheetweb weaving spider in the Linyphiidae, found across northern North America and eastern Russia. It is one of approximately 4,000 in the sheetweb weaver family, characterized by their flat, horizontal web architecture. The species is rarely encountered by casual observers due to its small size and cryptic habits.

Pronunciation

How to pronounce Bathyphantes canadensis: //ˌbæθɪˈfæntiːz ˌkænəˈdɛnsɪs//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Identification to requires examination of genitalia. Male possess a complex embolus structure typical of entelegyne spiders, with the bulb and cymbium forming species-specific configurations. Females have an with sclerotized openings that serve as a diagnostic 'lock' matching only males. External somatic features are insufficient for reliable identification due to similarity with other Bathyphantes species.

Distribution

Northern North America including Canada and the United States (including Alaska); eastern Russia from Middle Siberia to the Russian Far East.

Behavior

Constructs flat, horizontal sheet webs, a characteristic of the Linyphiidae.

Similar Taxa

  • Bathyphantes spp.Other in the share similar body plan and web architecture; genital examination required for separation.
  • Other LinyphiidaeMany sheetweb weavers exhibit convergent and web structure; microscopic examination of reproductive structures necessary for definitive identification.

Tags

Sources and further reading