HEMIPTERA OF COLORADO 



75 



spots on propleura mucli 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 Ijroad lieneath 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 

 Ijroad 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 blacVc 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 scutellum 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 4.7,5 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 tli' 

 breadth of the face; a-o tht 

 length and r-f tie l)readth of 

 the front, &c. The width of the \ "'i 

 clypeus is always taken at its 

 base, and the width of the lorae 

 Where i hey are widest measured 

 at right angles to the median line of 1 he front. By lengtliof veitexat theeye, 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 wliere it is greatest. In Idiocerus the le!igth of 

 the front is taken from base of clypeus to the ocelli. 



