OF PHILADELI'llIA. 85 



PYROPA Illig. 



p. FURCATA. — Yellowish, hairy; below the scutel pale iduiii- 

 beous ; wings with two dusky anastomoses. C^^] 



Inhabits 31issouri. 



Body pale yellowish-brown, hairy ; head beneath the antennae 

 and narrow orbits yellowish-white, a little polished ; antennnc and 

 large spot above bifurcated at tip, rufous; proboscis piceous; 

 thorax lineated obsoletely with brown ; wings with two blackish 

 anastomoses ; beneath the scutel tinged with pale plumbeous ex- 

 tending downward to the origin of the posterior feet ; tergnm 

 densely hairy : feet hairy, particularly the anterior pair, the thighs 

 of which arc marked by a dilated dusky line above. 



Length to the wing tips from two-fifths to nine-twentieths of 

 an incli. 



Rather less than P. hiftiiia which it very strongly resembles, 

 but may be distinguished by the dusky mark on the anterior 

 thighs. 



[This genus is Scatojihai/u hdtr. — Sacken.] 



OCHTHERA Latr. 



0. EMPIFORMIS. — Whitish ; tergum black ; head cinereous, 

 eyes very large, black. 



Inhabits Illinois. 



Body whitish; head cinereous, sub-globular ; eyes oval, very 

 large, approximating beneath the origin of the antennae black ; 

 autennse whitish, abruptly broken outwards at the third joint ; 

 rostrum pale ; thorax dusky above ; feet white, anteriors, thighs 

 dilated, robust, emarginate behind the inferior middle, for the 

 reception of the tips of the tibia, and armed beneath with dis- 

 tant equidistant, rather long setae, tibia incurved at tip and mu- 

 cronate, armed beneath with [100] approximate, short, setae, in- 

 termediate and posterior leet white, tips of the tarsi blackish : 

 abdomen deep black, immaculate. 



Length of the body one-tenth of an inch. 



[Wiedemann has changed the name to 0. empidljormk. — 

 Sacken.] 

 1823.] 



