Calilena saylori

Chamberlin & Ivie, 1941

Calilena saylori is a funnel-web spider in the Agelenidae, first described by Chamberlin and Ivie in 1941. The Calilena is distinguished from the similar Hololena by its long , which are typically held parallel to each other. Like other agelenids, this constructs sheet-like webs with a funnel-shaped retreat. It is found in the western United States.

Pronunciation

How to pronounce Calilena saylori: /ˌkæ.lɪˈliː.nə ˈseɪ.lɔːr.aɪ/

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Identification

Calilena is distinguished from the closely related Hololena by : Calilena possesses long spinnerets usually held parallel to each other, whereas Hololena has short spinnerets often directed somewhat inward toward each other. Calilena is also generally smaller than Agelenopsis, with mature females ranging 9-12 mm and males 8-9 mm, compared to Agelenopsis at 10-20 mm. Confirmation of identity requires microscopic examination of genitalia.

Distribution

Western United States

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Taxonomic Note

The Hololena, which shares many ecological and morphological traits with Calilena, is in need of revision according to arachnologists. Some sources suggest approximately thirty in Hololena, but this remains provisional.

Sources and further reading