44 
Psyche 
[April 
Eutreta hespera sp. nov. 
This is the western form that has passed as E. sparsa. It is 
distinguished by the pellucid dots of the wing, larger, often con- 
fluent, those on the posterior part much larger than in E. sparsa; 
there are also pale spots in the costal area, and the costa before 
the end of the first vein is marked several times with pale; no- 
where do the spots tend to form in rows as in E. sparsa. The 
wings are about as broad as in E. sparsa , and the clear apex of 
about the same extent. 
Length of forewing 5 . 5 mm. 
From California Julien (Osten Sacken) and Compton (Cole), 
and Colorado, Manitou. 
Eutreta angusta. sp. nov. 
Resembles E. sparsa, but with narrower body and more 
slender wings; sides of the abdomen nearly parallel, last seg- 
ment much longer than broad at base, and more tapering than 
in E. sparsa. Wings about twice as long as broad; the spots 
rather less scattered, but somewhat in rows, and a few in the 
costal area, and the costa before end of auxiliary is partly pale, 
the mark at end of the first vein is very small, the clear apical 
margin is less extensive than in that species. 
Length of fore wing 4.2 mm., width 2 mm. 
From Texas (Lefv.) and one specimen marked “R” and var.? 
by Loew. 
These two species may be tabulated with E. sparsa as fol- 
lows: 
1. Costa before end of auxiliary vein not marked with pale or 
but once E. sparsa 
Costa marked several times before end of auxiliary vein. 2. 
2. Wing about twice as long as broad E. angusta 
Wing much broader E. hespera 
Eutreta simplex Thomas differs from all of these in lacking 
the black spots on the face. 
