''Pygarctia murina'', the mouse-colored euchaetias, is a moth in the family

Erebidae The Erebidae are a family of moths in the superfamily Noctuoidea. The family is among the largest families of moths by species count and contains a wide variety of well-known macromoth groups. The family includes the underwings ('' Catocala'') ...

. It was described by Richard Harper Stretch in 1885. It is found in the United States in south-western Utah, from southern Colorado to south-eastern California and in southern Texas. The wingspan is 26–33 mm. Adults are on wing from late July to September. Larvae feed on '' Euphorbia'' species and have also been reared on ''

Funastrum ''Funastrum'' is a genus of flowering plant now in the family Apocynaceae. The name is derived from the Latin word ''funis'', meaning "rope", and ''astrum'', alluding to the twining stems. Members of the genus are commonly known as twinevines. S ...

'' species. They reach a length of about 22 mm when fully grown. Pupation takes place in a silken cocoon within surface debris.Bug Guide
/ref>

References

Arctiidae genus list
at ''Butterflies and Moths of the World'' of the Natural History Museum Moths described in 1885 Phaegopterina {{Phaegopterina-stub