''Thorybes diversus'', the western cloudywing, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

of the

Hesperiidae Skippers are a family of the Lepidoptera (moths and butterflies) named the Hesperiidae. Being diurnal, they are generally called butterflies. They were previously placed in a separate superfamily, Hesperioidea; however, the most recent taxonomy ...

(skipper) family. It is found in the western North America. The range extends along western slopes of the

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

and Cascade Mountain ranges, from southern

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

Mariposa County Mariposa County () is a county in the U.S. state of California. As of the 2020 U.S. Census, the population was 17,131. The county seat is Mariposa. It is located in the western foothills of the Sierra Nevada mountains, north of Fresno, east of ...

. The habitat consists of small openings in coniferous forests.

Morphology

The adults are primarily a dull brown. The upper aspects of the wings have small pale spots, while the undersides show gray scaling at the margins. The males lack the fold on the forewings leading edge, known as a costal fold, which in other species of butterflies contains scent scales (

androconia The external morphology of Lepidoptera is the physiological structure of the bodies of insects belonging to the order Lepidoptera, also known as butterflies and moths. Lepidoptera are distinguished from other orders by the presen ...

). Hindwings may show darker banding. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 32–38 mm. The wings are dull brown with small pale spots. Adults are on wing from June to July in one generation per year. Trifoliumwormskioldii

The larvae (

caterpillar Caterpillars ( ) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths). As with most common names, the application of the word is arbitrary, since the larvae of sawflies (suborder Sym ...

s) feed on ''

Trifolium wormskioldii ''Trifolium wormskioldii'' is a species of clover''Trifoli ...

'', a species of

clover Clover or trefoil are common names for plants of the genus ''Trifolium'' (from Latin ''tres'' 'three' + ''folium'' 'leaf'), consisting of about 300 species of flowering plants in the legume or pea family Fabaceae originating in Europe. The genus ...

native to the western half of North America.

References

Hesperiidae Butterflies of North America Butterflies described in 1927 Thorybes {{Hesperiidae-stub

Morphology

See also

References