BRANCH: BIOLOGY OF KANSAS MEMBRACID^. 107 



forms also the front of a second elevation, or the dorsal hump, which 

 does not rise as high as the procephalon, but is equally compressed, 

 slopes down rapidly, making the dorsal hump, in lateral aspect, appear 

 somewhat rectangular. After dropping for a distance about equal to 

 the depth of the curved sinus, the dorsal line proceeds gently backward 

 and downward to meet the blunt posterior process. 



Eiitylia sittHatu Fabr. Figs. 61, 62, 64, 83. 



In looking over the individuals of this genus in F. H. S. collection, 1 

 find two species, or rather one species and a variety, Eiifylia sinaata 

 and Entylia sinuata var. bactriana. Upon closer examination the writer 

 finds that those determined as E. bactriana are all males, and those 

 determined as E. sinuata are all females. In the life-history obseiva- 

 tions (recorded in this paper) the writer found the males agreeing with 

 bactriana and the females agreeing with sinuata. F. C. Crawford, asso- 

 ciate curator, division of insects. United States National Museum, states 

 that there are both males and females of both species and variety in the 

 collection there. From this information, and the study of life history, 

 it may be inferred that there has been an error in the determination of 

 the material in the F. H. S. collection. Whether that is a correct .state- 

 ment or not, the fact remains the same — that the writer has not found 

 any E. sinuata var. bactriana in Kansas. 



It is not neces.=ary to redescribe the procephalon and dorsum of this 

 species, as it agrees with that given in the generic characters. The sides 

 of the prothorax bear three lateral carinse, the centi-al one being 

 branched at its base in such a manner as to frequently appear as two. 

 The lower one forms the edge of the prothorax, while the upper branches 

 into the posterior elevations. These carinas frequently appear white, es- 

 pecially in the males. There is a prominent dorsal carina which extends 

 from the base of the metopidium, follows the elevations in their sinua- 

 tions, and finally fades out on the posterior process. The prothorax 

 extends beyond and covers the tips of teg-mina. The tegmina 

 are transparent except in the basal region of the three longitudinal 

 veins in the corium; this region is dark and heavily coriaceous. The 

 discoidal cells are small and pushed costad and distad, leaving the lower 

 part of the corium unveined. The tips of the tegmina are infuscated. 

 The suprahumerals are distinct, obtuse, and not formed by any marked 

 invaginations in the outline of the prothorax. 



The male is dark, almost black, with procephalon slightly less ele- 

 vated than in the female. The face heavily punctate. As a rule, the 

 male is smaller than that of the female. The female is light brown or 

 tan, mottled with dark ariteriorly. The front of the head and pro- 

 cephalon is densely spotted with irregular dark markings, and there is 

 an arcuate dark mark on the sides of the prothorax behind the middle, 

 with the posterior end infuscated. The body usually accords in shade 

 to the main color of the prothorax; the legs pale. There are variations 

 in this color marking, as the front of the face and prothorax, including 

 the cephalic elevation or procephalon, may be pale, as usual, but the 

 sides of the prothorax, including the dorsal hump, may be very dark, the 

 caudal third of the prothorax being light, infuscated at the extreme 



