359 



2. Yellow species ; third vein to three fourths the wing-length ; legs yel- 

 low, apices of hind femora, bases of hind tibiae, and apices of all 

 tibia; and of all tarsi blackened 2. elegantiila. 



— Opaque black species ; scutellum, haltcres, and tarsi yellow ; third 

 vein to five sixths the wing-length 3. inermis. 



I. Parabezzia petiolata, n. sp. 



Male. — Glossy black. Legs black, tarsi almost entirely whitish 

 yellow. Wings clear, veins almost colorless. Halteres white, Anten- 

 nal plumes brownish, whitish at apex ; body hairs and setulse black. 



Eyes distinctly separated; antennae about one and a half times as 

 long as head and thorax combined. Disc of mesonotum unpunctured 

 and without any pruinescence, the discal hairs strong, setulose, con- 

 fined to the median and submedian lines and the lateral margins ; scutel- 

 lum with 6-8 setulose marginal hairs. Abdomen subcylindrical, nearly 

 bare ; hypopygium small. Legs slender, hind tibicC with inconspicuous 

 dorsal setulose hairs ; basal joint of hind tarsus slightly more than half 

 as long as tibia and as long as remaining joints together; fifth joint 

 without ventral spines ; tarsal claws of moderate size, subequal. Third 

 vein distinctly short of two thirds the wing-length, joining costa at an 

 acute angle; first vein almost connected with third at its base, joining 

 costa slightly beyond middle of third ; apex of petiole of media slightly 

 before apex of first vein; base of posterior branch of media indistinct ; 

 fork of cubitus in line with fork of media. 



Length, i. 25-1. 5 mm. 



Type localitv, Muncie, 111., May 24 and July 5, 1914 (C. A. Hart 

 and J. R. Malloch). 



The female and early stages are unknown. 



2. Parabezzia eeEGantuea Johannsen 



Ceratopogon elegantulus Johannsen, Kans. Univ. Sei. Bull., Vol. 14, 1908, p. 109. 

 Probezzia elegantula (Johannsen) Malloch, Proc. Biol. Soe. Wash., Vol. 27, 

 p. 137. 



This species is not in the collection of this Laboratory. It was 

 described from specimens taken at Lawrence, Kansas, in July. 



3. Parabezzia inermis Coquillett 



Ceratopogon inermis Coquillett, Proc. U. S. Nat. Mus., Vol., 25, 1902, p. 86. 

 Frolezsia inermis (Coquillett) Malloch, Proc. Biol. Soc. Wash., Vol. 27, p. 137. 



In coloration this species closely resembles pctiolata, but the mes- 

 onotum is opaque and is whitish pruinose on the sides, while the 

 scutellum is yellow. 



