96 STUDIES IN NORTH AMERICAN MEMBRACID^E 



acteristic Cyrtolobus markings more or less distinct ; ely- 

 tra almost hyaline with a brown median cloud in dark 

 examples, 1, trilineatus Say. 



-. Crest little elevated, with a feeble sinus before and behind ; 

 color a uniform rufous brown with a whitish marginal 

 vitta on either side; elytra fuliginous, 



2, lateralis V. D. 



1. Cyrtolobus (Xantholobus) trilineatus Say. PI. 2, fig. 23. 



Crest moderately but distinctly elevated, placed far back, 

 much inflated, when viewed from above forming two almost 

 globular cysts, the anterior the larger. Color ferruginous 

 brown in the female with the middle of the metopidium testa- 

 ceous or whitish ; the anterior oblique vitta is slender and is 

 frequently broken above or merged with the pale median por- 

 tion of the metopidium; posterior vitta broad, narrow edge of 

 the pronotum and a slender longitudinal line above the humeri 

 pale ; these latter markings frequently obsolete. The males and 

 at times the females, are of a rich chestnut brown color with 

 some black marks over the eyes and about the pale vittse poste- 

 riorly. Face triangular before with the slender clypeus much 

 produced. Elytra hyaline or nearly so, with a fuliginous cloud 

 at the middle in dark examples, and fuscous at tip in the males; 

 base brownish, punctured. Length 7-8 mm. 



Of this species I have before me specimens from New 

 York, and Rhode Island but it doubtless occurs throughout the 

 eastern United States and perhaps southern Canada. 



2. Cyrtolobus (Xantholobus) lateralis n. sp. 



Closely allied to trilhieatus: a little smaller and more depressed. 

 Crest little elevated; in the present specimen distorted anteriorly by the pin 

 but apparently with a slight sinus over the post-humeral sinus; lateral com- 

 pression deep, the posterior cyst rather less developed than in trilineatus. 

 Color a uniform pale rufous brown, closely punctured and polished; lateral 

 margins with a creamy white vitta, very narrow behind the eyes but widen- 

 ing posteriorly from the humeri to a point about under the posterior sinus. 

 Posterior sinus feeble marked with a minute pale line on the carina. Elytra 

 dark fuliginous, paler where it rests beneath the sides of the pronotum, 

 rufous and punctured at base; inferior surface of the head black; face pale 

 varied with ferruginous. Length 7 mm. 



Described from one female taken at Ithaca, N. Y., in the 

 Cornell University collection. This may be distinguished from 



