322 THE UNIVERSITY SCIENCE BULLETIN. 



and the eyes along the posterior margin. Pronotum largely greenish, 

 sometimes varying to reddish-brown, with two irregular black spots 

 enclosing a median wedge-shaped green spot. Mesonotum green to red- 

 dish-brown, marked with black as follows: Between the arms of the 

 W, a large spot tapering to posterior margin on each side laterad of 

 the W, and a smaller spot on each side laterad of this, the latter two 

 spots on each side often fusing, and a large black spot in front of the 

 cruciform elevation with a long slender point reaching between the 

 two middle arms of the W. Abdominal terga usually black, though some- 

 times the posterior margins are testaceous. Wings with veins all 

 greenish to reddish-brown basally, becoming darker apically. The cross 

 veins between Rr, and R4+,-. and between the latter and Mi are distinctly 

 darkened and practically spot-like. The basal areoles of the fore 

 wings are greenish anteriorly; the flaps of both wings are grayish. 

 Beneath brownish, entirely pruinose when fresh, rubbed specimens 

 showing oblong black spot at base of each abdominal sternite. Opercula 

 usually lighter than rest of under side. Legs light, excepting front 

 legs, becoming darker apically. , 



Form: The following are the measurements in millimeters of the 

 specimens at hand: 



Length of body 23 to 26 



Width of head 10 to 12 



Expanse of fore wings 66 to 76 



Greatest width of fore wing 10 to 11 



Greatest width of operculum 5 to 5.5 



Greatest length of operculum 7.5 to 8 



The opercula are slightly overlapping medially, the apices are very 

 broadly rounded, the inner margin being slightly longer than the outer. 



Genitalia: The supra-anal plate of the male has a stout but acute 

 median spine, which clearly exceeds the rounded lateral angles. The 

 uncus when viewed laterally is curved and widens till near the apex, 

 when the inner margin suddenly tapers and forms an angle with the 

 outer margin. Viewed caudally it is a large sclerite, about tvnce as long 

 as wide, scarcely tapering to the broadly rounded apex, and broadly and 

 rather deeply emarginate dorsally. The ventral piece is deeply U-shaped. 

 The last ventral segment of the male is fully twice as vnde as long and 

 hemispherical in outline. The pyfogers of the female have a stout but 

 very acute median spine which strongly exceeds the lateral angles. The 

 last ventral segment of the female is distinctly sinuate laterally and the 

 posterior margin is broadly but angularly emarginate fully one-half of the 

 distance to the base. The ovipositor has lateral pieces, each bearing about 

 fourteen teeth or ridges, which are for the most part separated by deeper 

 incisions than in the other species examined. The ovipositor in this case 

 seems to be specifically distinct. 



Distribution: This species has so far been reported from 

 Kansas only. It is apparently most abundant in the eastern 

 part of the state, as shown by the county records on the follow- 



