| 词条 | Western tailed-blue |
| 释义 |
| image = Cupido amyntula 'Western Tailed Blue'.jpg | image_caption = Mating pair | taxon = Cupido amyntula | authority = Boisduval, 1852 | synonyms = }} The western tailed-blue (Cupido amyntula) is a member of the family Lycaenidae and is seen across western North America as far north as Alaska.[1] The upperside of the male butterfly is blue while the female has a darker brown band on the outer side of the wing. The underside is riddled with black spots, with a wingspan of 2.2 to 2.9 cm. The larvae feed on Thermopsis, Astragalus, Oxytropis, Vicia, and Lathyrus species.[2] References1. ^{{cite web |title= Species Cupido amyntula - Western Tailed Blue - BugGuide |url= http://bugguide.net/node/view/25067 |accessdate=2009-09-04}} {{Polyommatinae-stub}}{{Taxonbar|from=Q2906516}}2. ^{{cite web |title= Species Detail Butterflies and Moths of North America |url= http://www.butterfliesandmoths.org/species?l=1590 |accessdate=2009-09-04}} 2 : Cupido (butterfly)|Butterflies described in 1852 |
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