78 



^^ *5t^-»-«^^t<^ calypteres white; lent^th 8 miu. Missouri. A single female 



r^..^^ C^-l^ speciiiuMi bred from an unknown Lepi(lo])terous larva ou Trios- 



teum. Tyi)e No. 3578, U. S. ISational Museum crucicola n. sp. 



Genus CYRTOPHLCEBA Rond. 



CyrtophUiha Roudaiii, Dipteiologia' ItaliciL' Prodioinus, \<.A. 1, p. (5S; 1856. 



Our single species is black, with a strong tinge of bronze, the palpi 

 and lirst two joints of the antennic yellowish, three postsutunil and 

 three sternopleural niacirocha'ta", second and third abdominal segments 

 f^'j' bearing discal and marginal ones; length, 7 to 10 mm. Toronto, 

 Canada; New lUMlford and Hyde Park, Mass.; Ithaca, N. Y., and 

 northern Illinois. (Journal N. Y. Ent. Soc, Vol. Ill, p. 101; Septem- 

 ber, 1895.) horrida ^ Coq. 



i/ 



Genus PLAGIA Meig. 



riagin Meigcn, System. IJescli. Eur. Zweif. lusekteu, Vol. VII, p. 201; 18SF 



Our species has three postsutural and three sternoi)leuralmacrocha3ta3, 



proboscis thick, lieshlj^, less than twice as long as thick, basal half of 



' '''^****-*-iJ, palpi and the antennte black, lowest frontal bristles directed down- 



^^'^^~ ward, third vein at most bristly slightly beyond the small crossvein; 



''^f'^'^'^*^/'*-'*-^ length, 7 to 9 mm. Northern Illinois; St. Louis, Mo.; Los Angeles 



r^'^-^-y*^ County, Cal. ; Allende and Diaz, Mexico. (Biol. Cent.-Amer., Diptera, 



"Vol. 11,]). lOL*; March, 1890. Plagia aurifrons Townsend, Canadian 



Entomologist, Vol. XXJV, p. 07; March, 1892.). . . . americana v. d. W. 



Genus SIPHOPLAGIA Town. 



Siphoplmiia Towusend, Trans. Amer. Ent. Soc, Vol. XVIII, p. 349; Noveniher, 1891. 



Our species are black, the first two joints of antenini', lower part of 

 iace, cheeks, and pali)i, yellow; body subopaque gray i>ollinose, thorax 

 marked with four black vitta'; three postsutural and three sterno- 

 pleural macroclneta', middle tibiae each bearing four on the front side 

 near the middle, second and third segments of abdomen bearing only 

 marginal macrocha^ta'; length, 8 mm.: , , . ,./ 



Fifth vein baie, iniddle ])air of orbital bristles veiy small. /^^Los Ange- 

 0'^^ ^ les County, Cal. (Trans. Amer. Knt. Soc, Vol. XV HI, j). 'Ar>{)- 



)^^^ November,. 1891.) .^ anomaitt Town. 



y\*}l Y'lirr?n^|.i,^f^y-''i>.wi,ii?.^j.o;.. of orbital bristles as large as the others. 

 Toronto, Canada, and Colorado. (Biol. Cent.-Amer., Diptera, 

 Vol. II, p 102; March, 1890: Flagia.) rigidirostris v. d. W. 



'The Cyrtophlaha horrida Giglio-Tos, Boll. Mns. Zool. Torino, Italy, Vol. VIII, p. 

 6, 1893, docs not belong to this genus, since the hind crossvein is nearly perpendic- 

 ^ ular, the lirst vein bristly, etc. , ^/-a 



