406 ENTOMOLOGICAL NEWS. [Nov., '14 



and with long black hairs on the front surface; hind coxae with an 

 erect bristle on the outer surface; legs yellow; fore and middle tarsi 

 darkened towards the tip ; tips of the hind tibiae and hind tarsi brown. 

 Tegulse and halteres yellow, the former with white cilia. 



Wings hyaline, strongly tinged with yellowish brown, and with 

 yellowish brown veins. 



Described from one female taken by Mr. Nathan Banks at 

 Great Falls, Virginia, June 2ist. 



This species can readily be recognized by its yellow anten- 

 nae and also by the conspicuous coppery spots above the roots 

 of the wings. 



Thinophilus frontalis n. sp. 



Male : Length 6 mm. Face wide, dark metallic green, with coarse 

 brownish yellow pollen along the sides below, the portion below the 

 suture nearly one-half as long as the upper portion and with a longi- 

 tudinal ridge ; palpi very large, reddish yellow, each as large as the 

 face and covered with coarse black hairs ; front broader than the face, 

 widest at the vertex ; ocellar tubercle prominent, a carina from this 

 tubercle to the eye margin where the outer vertical bristles are in- 

 serted and forming an excavated basin above the antennae, the outer 

 upper corner of which is reddish coppery, the center violet, and the 

 sides green ; front with only a little brownish-yellow pollen near the 

 antennae; antennae yellowish below, brownish above, first joint bare 

 above, second as long as the first and as broad as long, third very 

 short with the arista inserted at the base above; orbital cilia black 

 above, yellowish below. 



Dorsum of the thorax metallic black with violet reflections, polished, 

 with a central green vitta which reaches the scutellum; scutellum con- 

 colorous with this vitta; a deep black spot above the root of the wing; 

 dorsum with coarse yellowish-brown pollen; scutellum with two large 

 and two small marginal bristles; pleurae blackish-green with thick 

 yellowish-gray pollen. 



Abdomen metallic green, with six visible segments, the sixth as 

 long as the others, the incisures bronze-black ; abdomen dusted with 

 gray pollen which is thickest along the lower lateral edges ; hypopy- 

 gium small, partly imbedded, rounded behind, with two pairs of long, 

 thick, black lamellae, which reach the ventral hind margin of the fifth 

 segment, this margin projecting somewhat below and with a pair of 

 black spine-like bristles. 



Coxae black with yellow tips and thick gray pollen ; fore and middle 

 pairs with black bristles on the front surface ; middle and hind coxae 

 each with a large black bristle on the outer surface; femora yellow; 

 fore and middle pairs with black hairs below, the former with four 



