DIPTERA. 401 



chest : legs tawny ; fore-legs pilchy : wings with a tawny tinge ; veins 

 tawny ; lower cross-vein upright, almost straight : halteres tawny. Length 

 of the body H liue ; of the wings 3^ lines. 



United States. 



SciOMZA PARALLELA, MaS. 



Fulva ; caput Jlavum, alho tnviUaluvi ; antenna ferruyincce basi fuhm ; 

 thorax cinereus ; pedes testacei, tibiis anticis apice tarsisqxw anticis 

 ferrugineis ; ala suhlimpidce. 



Tawny: head yellow, with a shining white covering ; crown luteous, 

 with three white stripes; epistoma not prominent: mouth ferruginous; 

 palpi tawny : feelers tawny ; third joint ferruginous, somewhat obconical, 

 slightly bent upward, tawny towards the base, full twice the length of the 

 second ; sixth bare, very slender, black towards the tip, more than twice the 

 length of the third: chest cinereous: breast with a hoary covering: abdo- 

 men a little longer and narrower than the chest : legs testaceous ; fore-feet 

 and tips of fore-shanks ferruginous : wings almost colourless ; veins tawny, 

 black towards the tips ; lower cross-vein almost straight and upright: hal- 

 teres yellow. Length of the body If line ; of the wings 4 lines. 



United States. 



Genus TETANOCERA, Dumeril. 

 Tetanoceha corncta, FcEm. 



Fulva ; antenna picea, arista alba ; thorax fusco trivitlatus, latcribus 

 albido vittatis ; pectus can mn ; abdomen ferrughieum ; pedes fulvi, 

 tarsis piceis; alec subcmereo', ad costam fulvw . 



Tawny: mouth pitchy: feelers pitchy; first joint tawny towards the 

 base ; third very long, hairy, clavate ; fourth seated on the tip of the second ; 

 sixth white, slender : chest with three brown stripes ; a whitish stripe on 

 each side: breast hoary : abdomen ferruginous, tapering towards the tip, 

 longer than the chest ; legs tawny ; feet pitchy ; thighs armed beneath 

 with minute spines: wings slightly gray, tawny along the fore border; 

 veins ferruginous ; fifth vein approaching very near the tip of the fourth ; 



