HEMIPTERA OF COLORADO 
75 
spots on propleura much larger. Length 4.75 mm. 
Described from two females and one male. 
Idiocerus distinctus n. sp. * 
Female: Form that of a small and slender alternatus. Face a little less than one- 
eighth wider than long; clypeus two-fifths longer than broad, broadest at base; lorae a 
little longer than clvpeus, and two-thirds as broad; 
genae rather deeply depressed beneath the eyes, 
lateral margins nearly straight, attaining the tip 
of the clypeus and broad beneath the lorae. Front 
but little longer than broad, two times as 
long as the clypeus, rapidly narrowing below the 
antennae; face rather coarsely shagreened. Vertex 
finely transversely wrinkled, length at the middle 
the same as at the eyes, width between eyes a little 
less than five times the length at the middle, apex 
very broadly rounded. Pronotum two times as 
broad as long, three times as long as vertex, curva¬ 
ture little more than two-thirds of the length; 
slightly concave behind; disc finely transversely 
shagreened, transverse groove as in interruptus. 
Last ventral segment with the hind margin broadly 
rounded, notched at the center, posterior angles 
rounded. Color brown and white above, yellowish 
beneath. Face and vertex pale yellow washed with . 
pale rufous. Vertex with small round black spots 
on crest. Pronotum pale brown with about eight or 
ten small pale bluish spots. Scutellum rufous, 
dark near the posterior angles, with two small spots 
on the disc, and the apex pale. Elytra white next 
to s'iutellum and at tip of clavus deep smoky; two 
or three lines on the nervures below tip of clavus, 
and nervures at tip of corium, blackish. Venter 
yellow. Legs pale yellow, concolorous. 
Length 4.76 mm. Described from one female. 
Steamboat Springs, July 15th on willow (Baker). 
Fort Collins, September 26th on elm (Baker), and Septem¬ 
ber on grass (Gillette). 
Variety A. We have a single female, identical in all 
respects with this species except that it is strongly suffused 
*The lines drawn on the ac¬ 
companying figure indicate 
where the measurements which 
are given in these descriptions 
are made. For example, a-b 
would be the length and c-d th< 
breadth of the face; a-o the 
length and e-f the breadth of 
the front, &c. The width of the 
clypeus is always taken at its 
base, and the width of the lorae 
where they are widest measured 
at right angles to the median line of the frbnt. By length of vertex at the eye, we mean the 
shortest distance across the vertex at this point. By curvature is meant the distance w-z. 
The width of the front is always given where it is greatest. In Idiocerus the length of 
the front is taken from base of clypeus to the ocelli. 
