392 THE NOETH AMERICAN EMPID^—COQUILLETT. vol.xviii. 



HEMERODROMIA ROGATORIS, new species. 



The male differs from H. captus as follows : Tliorax, scutellum, metano- 

 tum, pleura, and sternum light red. Abdomen in middle of dorsum 

 brownish red, the seventh segment wholly light yellow; hypopygium 

 large, projecting both above and below the abdomen, reddish brown. 

 Middle and hind coxie light red; on the under side of each front femur 

 near its base, and just beyond the tip of the folded tibia, is a rather 

 large blunt tubercle, bearing at its summit a stout spine directed 

 obliquely forward. 



Type.—^o. 3152, U.S.X.M.; length, 4 mm. A single specimen. 



Locality. — North Carolina. 



NEOPLASTA, new genus. 



Head somewhat depressed, eyes widely separated in both sexes; 

 antenn:e much shorter than the head, three jointed, third joint oval, 

 slightly longer than broad, pointed at the apex, thickly short pilose; 

 style apical, robust, much shorter than the third joint; i)roboscis pro- 

 jecting downward, snbequal in length to height of head; palpi small, 

 nearly cylindrical. Front coxa^ two-thirds as long as the front femora, 

 the latter nearly twice as thick as the other femora, which are slender; 

 none of the tibi;e armed with a stout spur at the tip. Wings with the 

 third vein forked, the discal cell present and sending three veins to the 

 wing margin ; second basal cell united witli the discal, anal cell present, 

 the vein at its apex nearly perpendicular to the hind margin of the wing. 



Type. — Hemerodromia scapuhiris, Loew, in the IMuseum of Compara- 

 tive Zoology, Cambridge, Massachusetts. 



Genus MANTIPEZA, Rondani. 



ANALYTICAL KEY TO THE SPECIES OF MANTIPEZA. 



1. Thorax largely yellow, abdomen and venter partly yellow 2 



Thorax and abdomen wholly ash-gray, stigma of wings yellowish brown, .valida. 



2. Lateral margins of thorax black, scutellum blackish , 3 



Lateral margins of thorax yellowish, scutellum light yellow paUoris (p. 392). 



3. Thorax with amedio-dorsal black vitta, stigma of wings ronnd, black notata. 



Thorax destitute of such a vitta, stigma very pale yellowish, scarcely visible 



obsoleta. 



Loew's three species of this genus were originally described under 

 Hemerodromia. 



MANTIPEZA PALLORIS, new species. 



Male and female. — Head, black; face, cheeks, and lower part of front 

 nearly to the lowest ocellus, yellow, densely white pollinose; antennre, 

 proboscis, and palpi, light yellow. Thorax reddish yellow, marked 

 with two slightly darker vitta^ and with a whitish stripe between them; 



