MCNEILL REVISION OF THE TRUXALIN/E OF NORTH AMERICA. 267 



They are twice as long as wide with a heavy boundary wall. The an- 

 tennie are filiform, little (female) or somewhat (male) exceeding the 

 combined length of the head and pronotum. 



The pronotum have the anterior and posterior margins of the disk 

 slightly and about equally rounded. The median carina is a moder- 

 ately high raised line equally distinct throughout and cut by the prin- 

 cipal sulcus only, decidedly behind the middle. The lateral carina; 

 are very slight and are clear!)' outlined with white. They are cut by 

 all three sulci. The lateral lobes have the posterior margin nearly 

 vertical, the anterior moderately inclined, and the posterior lower 

 angle broadly rounded. The valves of the ovipositor of the female 

 are included. 



The posterior femora are strong and marked above as in Pso/crssif 

 with three triangular dark-brown spots. The posterior tibia; have the 

 apical spur on the inner side about twice as long as the one beside it. 



I. Pnigode.s megocephala, n. sp. Figs. 28a, 28b. 



Length (male) .... 15 mm. (female) 19 mm. 



Tegmina 4. 5-5 . 5 mm 7 mm. 



Antennse 6 nmi 6.5 mm. 



Post. Fem 9 mm io-5 mm. 



Yellowish-brown varying to dark-brown without distinct ' marks 

 except the three triangular spots on the upper face of the posterior 

 femora and the light-colored lateral carina; of the pronotum bordered 

 below with black and within on the disk of the metazone by a black 

 triangular spot. In some specimens, however, the top of the head, 

 the disk of the pronotum, and the anal field of the tegmina are light 

 yellowish-brown and the black stripe of the pronotum is expanded 

 backward across the lateral field of the tegmina. The latter have the 

 longitudinal veins unusually prominent and, except in the variety just 

 described, they are faintly flecked with numerous small spots of 

 darker than the ground color. The posterior tibiae are reddish. 



This species seems to be confined to the Pacific Coast. The United 

 States National Museum contains numerous specimens from Yuba 

 county and Butte county, California. 



XXIX. EREMNUS, n. gen. Fig. 29. 



Vertex somewhat declivent, broader than the frontal costa at the 

 clypeus, sulcate, without a median carina, bounded by straight, sharp 



