OF PHILADELPHIA. 59 



placed transversely, and one near the tip of the opaque portion ; 

 poisers pale ; capitulum black beneath, and near the tip above ; 

 feet pale, tarsi and anterior thighs dusky : terguni with silvery 

 hairs each side at base, and each side near the tip. 



Length three-tenths of an inch. 



Very closely allied to A. morio Fab. I observed this species 

 in considerable numbers near Merrimac rivei*, Missouri. The 

 terminal joint of the antenna; is rather short, by which character 

 it may be distinguished from A. falvoliirta Wied. It is referable 

 to the fifth tribe of the genus Anthrax, agreeably to "Wiedmann's 

 divisions. 



2. A. LATERALIS. — Black ; wings hyaline ; sides with fulvous 

 hair ; tergum banded. 



Inhabits Pennsylvania and Maryland. [43] 



Hypostoma and occipital orbits with white hair : stethidium 

 with fulvous hair, particularly on the sides of the thorax, on the 

 pleura and collar ; wings as far as the basal transverse nervure 

 fuscous, costal nervures fuscous, the included areola yellowish- 

 brown , feet, the hair with a whitish reflexion ; tergum with a 

 band of prostrate yellowish hair at the base of each segment, and 

 with long fulvous hair each side as far as the middle of the 

 length. 



Length nearly one-fourth of an inch. 



It belongs to Wiedemann's fifth tribe. 



3. A. SCRIPTA. — Wings varied with black and hyaline ; tergum 

 with four series of silvery points. 



Inhabits Pennsylvania. 



Head reddish-brown, obscure covered by yellow ferruginous 

 hair, intermixed with longer black hairs, a black band on the 

 hypostoma, a black spot on each frontal orbit, and vertex black ; 

 thorax dusky, or blackish, with three black vittae, sides before 

 the wings dull cinereous, bounded beneath by another black line, 

 beneath the posterior angles is a fascicle of gray hairs, above 

 which are a few ferruginous hairs ; scutel reddish-brown, with 

 short black hair, and a small white spot at the subangulated tip ; 

 pleura and pectus reddish-brown; feet reddish-brown, tarsi 

 blackish ; wings, costal areola with a small hyaline spot, which is 

 the termination of a band extending in a slightly arquated di- 

 1823.] 



