678 BOSTON JOURNAL 



6. A. PANNOSUS. — Black; moutli white; feet varied with 

 white. 



Inhabits Indiana. 



% Body black : nasus very deeply cmarginate, white : labrum 

 suborbicular, truncate, subeuiarginate before, blackish on the 

 disk, or within the emargination of the nasus : mandibles black 

 at tip : maxillary palpi dusky in the middle of the basal joint : 

 thorax, posterior edge of the collar white ; wing-scale blackish : 

 wings hyaline ; nervures black ; carpus on the inner half dull 

 wax -yellow : pleura immaculate ; feet, anterior pairs white be- 

 fore, with a black line behind ; coxae white : tarsi white with 

 dusky incisures; posterior pair black, incisures of the thighs, 

 band on the tibiae and base of the ultimate joints of the tarsi 

 white ; coxae white, with a black spot above and beneath. 



Length one-fourth of an inch. 



V Coxae with a large black spot; posterior tibiae with a white 

 longitudinal line. 



Length three-tenths of an inch. [218] 



Much smaller than externus nob., Western Quarterly lie- 

 porter. [Ante, 1, 162.] 



7. A. BARDUS. — Black ; thorax and anterior upper angle of 

 the pleura rufous. 



Inhabits Indiana. 



9 Body short, dilated, black : antennae, second joint nearly as 

 long as the first, but less dilated : front and vertex with impressed 

 lines : nasus not deeply emarginate : labrum rounded before : 

 mandibles piceous at tip : thorax and humeral portion of the 

 pleura honey-yellow : wings tinged with blackish-purple. 



Length three-tenths of an inch. 



Belongs to the genus Selandria Leach. The short and di- 

 lated form is like that of ovatus L., and nigerrlma Klug. 



NEMATUS Jur. 

 1. N. VERTEBRATUS. — Green ; antennae and spots above black- 

 ish. 



Inhabits Indiana. 



9 Body pale green : vertex with a black spot : antennae black, 

 fuscous towards the tip; second and third joints subequal; nasus 



[Vol. I. 



