OF PHILADELPHIA. 83 



2. E. CILIPES — Body cinereous; thorax rjuadrilineate with 

 black; wings brown, paler at base. [96] 



Inhabits Ohio. 



Body blackish-cinereous ; eyes red-brown, those of the male 

 occupying nearly all the head; stemmata black; antennae black, 

 first and second joints with short cinereous hairs; proboscis 

 corneous, black, polished ; thorax hairy, two longitudinal, dorsal 

 black lines, obsolete behind, and a lateral one each side; wings 

 brown, paler at base; norvuros dark brown; feet black; poste- 

 rior tibia in the male, dilated towards the tip and deeply hain.^ 

 above, hairs cinereous ; abdomen black, densely ciliated with 

 cinereous hair, attenuated to an acute tip in the female, and in 

 the male the tip is dilated, and abruptly reflected. 



Length of the body three-tenths of an inch. 



A rather common insect, about the IGth of May, near Cincin- 

 nati. The nervures of the wings are like those of the preceding 

 species, from which it may be distinguished by being smaller and 

 having one line less on the thorax, &c. 



[Also a Rhamphomi/ia. — Sacken.J 



3. E. SOOLOPACEA. — Cinereous, with a silvery reflection ; feet 

 reddish-brown. 



Inhabits Pennsylvania and JMaryland. 



Head black ; antennae dark reddish-brown ; proboscis yellow- 

 ish ; thorax slightly trilineate ; tergum immaculate silvery, re- 

 flexion brighter than that of the thorax ; wings immaculate, ner- 

 vures pale ; feet dull reddish-brown. 



Length rather more than three-twentieths of an inch. 



On flowers. [97] 



CALOBATA Latr. Meig. 



1. C. ANTENN.^PES. — Black ; feet pale, anterior tarsi white, 

 posterior tarsi white at base. 



Inhabits the United States. 



Body elongated, slender, deep black, immaculate ; eyes chest- 

 nut brown ; antennae, terminal joint white; thorax deep-black, 

 with a plumbeous tinge ; feet elongated, anterior pair moderate, 

 shorter than the body, black, pale at base, tarsi pure white, in- 

 termediate and posterior pairs much longer than the body, pale, 

 1823.] 



