Castianeira alteranda
Gertsch, 1942
Prairie Ant-mimic Sac Spider
Castianeira alteranda is a of -mimic spider in the Corinnidae. It occurs in the northern United States and southern Canada, with records from Alberta, Manitoba, and Saskatchewan. The species was described by Gertsch in 1942. Like other members of the Castianeira, it exhibits ant-mimicry as a defensive strategy.
Pronunciation
How to pronounce Castianeira alteranda: //kæˌstiːəˈnaɪərə ˌæltəˈrændə//
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Images
Distribution
Found in the United States and Canada. Specific Canadian provincial records include Alberta, Manitoba, and Saskatchewan. The appears to be associated with prairie and northern regions of North America.
Similar Taxa
- Castianeira cingulataBoth are ant-mimic spiders in the same with similar body plans and defensive -mimicry . C. cingulata (Twobanded Antmimic) has two pale bands on the and ranges from the northeastern U.S. south to Arkansas and Florida, while C. alteranda is more northern in distribution.
- Castianeira sp.Other members of the share the characteristic -mimic appearance, including elongated body form, banded coloration, and ant-like movement patterns. -level identification typically requires examination of genitalic structures under magnification.