632 PROCEEDINGS OF THE ACADEMY OP [Oct. , 



shorter wings, and in the carination of the ventral surface of the 

 subgenilal plate. No relationship appears to exist with the Euro- 

 pean Mecostethus grossus (Linn.). 



Head moderately prominent, the frontal costa forming a very 

 marked angle at the junclion with the fastigium ; fastigium pro- 

 duced, the median and lateral carinse well marked, and all termi- 

 nating at the narrowly truncate apex ; frontal costa slightly expand- 

 ing ventrad, sulcate throughout, the margins ■ slightly constricted at 

 the ocellus; eyes large, ovoid, moderately prominent; antennse 

 depressed, very much longer than head and pronotum. Pronotum 

 rugulose ; cephalic margin truncate, caudal margin obtuse-angulate, 

 lateral carinse apparent only on the cephalic margin of the prozona, 

 niedian carina well developed, uniform, severed by the transverse 

 sulcus which crosses slightly caudal to the middle ; lateral lobes 

 with the ventro -cephalic angle rounded, tegmina exceeding the 

 caudal femora. Mesosternal lobes separated by a space sub- 

 quadrate in outline ; metasternal lobes very narrowly separated 

 caudad. vSubgenital plate strongly produced, the caudal portion 

 subhastate in outline, bearing a marked longitudinally disposed 

 carina on the ventral surface. Caudal femora slender, genicular 

 lobes rounded ; tibise almost equaling the femora in length, bearing 

 12-13 spines on the margins. 



Color (specimen from spirits). — General tint dull grayish -brown, 

 eyes, postocular streak and lateral lobes of the pronotum reddish- 

 brown. Ulnar area and extremity of the tegmina blackish, this color 

 also suffusing the genicular region of the caudal femora and tibiae 

 as well as the distal extremities of the latter. Scapular area of the 

 tegmina whitish. 



3Ieasurenients. 



Length of head and body, 28.5 mm. 



Length of pronotum, 6.5 " 



Length of tegmina 27 " 



Length of hind femora, 19 " 



Subfamily CEdipodinae. 

 CEdaleus nigrofasciatus (DeGeer). 



1773. Acrydium nigrofasciatum DeGeer, Mem. Ins., Ill, p. 493, PI. 

 41. fig. 5. 



A series of 90 specimens of this very variable species. The 

 following localities and sources were represented in the series: 



