88 ACADEMY OF NATURAL SCIENCES 



brown hmule above the hypostoma and spot on the vertex; 

 ihroat and cheeks white ; thorax varied with pale-yellowish and 

 pale honey -yellow, impressed cruciform lines distinct; scutel pale 

 honey-yellow, edged with pale-yellow ; costal nervures dark- 

 brown at base, and those of the disk brown, the transverse ner- 

 vure of the intermediate cellule is in contact with that of the 

 preceding cellule ; pectus and feet white, tibia with a brown line, 

 tarsi tinged with green ; nails black ; abdomen yellowish-white. 



Length less than one-fifth of an inch. 



3. 0. CONFLUENTA. — Reddisli-brown ; costal nervures of the 

 wing confluent before their termination. 



Inhabits Ardca candidissima. 



Vertex with a deeper brown spot ; occiput pale yellowish ; 

 humerus with a pale spot, the angles not all produced, obtuse ; 

 costal nervures fuscous ; feet yellow-brown, tibia with a dark- 

 brown line, nails black. 



Length rather more than one-tenth of an inch. 



The remarkable character of the costal nervures of this spe- 

 cies sufficiently distinguish it from others ; these nervures are 

 confluent about half the length from the termination of the first 

 cellule to their tip. 



[Wiedemann observes that the name should be 0. covflueiu. — 

 Sacken.] [104] 



MELOPHAGUS Latr. Leach. 



M. depressus. — Pale-testaceous; eyes subovate. 



Inhabits Cervus Virginianus. 



Body polished, a little hairy, but appearing perfectly glabrous 

 to the eye : hypostoma yellow, with two brown lines ; vertex 

 dusky, with three indented punctures ; thorax unequal, with an 

 impressed line in the middle, with a dark reddish-brown poste- 

 rior and lateral edge ; feet slightly hairy, claws black ; pectus 

 with transverse rows of very short black spines ; tergum depressed, 

 punctured^ two impressed lines diverge from near the base to 

 the margin, beyond the middle ; venter paler than the tergum, 

 with short prostrate black hair-like spines, and an arquated series 

 of spines near the base. 



Length less than three-twentieths of an inch. 



[Vol. III. 



