THE CANADIAN ENTOMOLOGIST. 45 



NEW JASSID/E FROM THE ROCKY MOUNTAIN AND 



PACIFIC REGION. 



BY E. D. BALL, FORT COLLINS, COLO. 

 ( Continued from page //.) 



Eutettix Mildreds, n. sp. 



Form and general appearance of pulchella ; colour pattern of scaber, 

 but with extra markings, and different colours on pronotum and elytra. 

 Length, 5.5 mm. ; width, 1.75 mm. 



Vertex slightly angularly rounded, transversely depressed before the 

 apex; front as in scaber, the margin between front and vertex more strongly 

 produced. Pronotum slightly angularly rounding anteriorly, much more 

 so than in scaber ; lateral angles scarcely apparent, rounding from eye ; 

 pronotum and scutelium convex, elevated. 



Colour : vertex orange yellow, paler at base ; scutelium orange, the 

 basal angles and the margins at apex irrorate with fuscous. Pro- 

 notum dirty white, some black spots next the eyes ; disc irrorate, 

 pale olive brown, omitting an oval spot on the posterior disc 

 on either side and the median line. Elytra milk white, with black 

 margined areas of olive brown, as follows : All of clavus except a 

 semicircular spot at base and another at middle of claval suture ; an 

 oblique band on corium, beyond this spot narrowing to the costa, There 

 are three pairs of black spots along the sutural margin of clavus, the apical 

 pair largest. The claval suture between the white spots, and the anterior 

 and costal margins of the oblique band, heavily black. Inner apical cells 

 and a few spots on costa irrorate with black. Face orange, a black spot 

 on outer angle of either lora. Below pale yellow and fuscous. 



Genitalia : ultimate ventral segment of the female about twice the 

 length of the penultimate, the posterior margin broadly, slightly rounding, 

 the median third produced in two rounding lobes ; the notch between 

 them not as deep as their length, the lobes usually black ; male valve 

 obtusely triangular, a little over half the length of the ultimate segment ; 

 plates long triangular, about three times the length of the valve, the apex 

 attenuate, filamentous, together with the margin clothed with long silky 

 hairs. 



Described from three females from Colorado Springs, taken by the 

 author, and fourteen examples of both sexes from Manitou, collected by 

 Prof. Van Duzee. This is one of the prettiest Jassids that I have ever 

 seen, and I take pleasure in naming it after my wife, whose careful drawings 

 will add much to the value of my future synoptic work. 



