77 



Genus PLAGIPROSPHEEYSA Town. 



ria(jiprosplierijsa To\vus«)iid, 'J'raus. Amer. Ent. Soc, Vol. XIX, p. 113; May, 1892. 



Our specios is black, the lirst two joints of the antenuiu, palpi, apex 

 of scutelluin and sometimes the fiont corners of the second and third ^. 

 sejiinents of the abdomen, yellow; three postsutnra] and three sterno- -^^^ . 

 l)leural macroclueta', two on the front side of each middle tibia near its 

 middle; length, (5 to 9 mm. Georgia; Organ Mountains and Las Cruces, 

 N. Mex., Colorado, Tenino, Wash., and southern California. (Biol. 

 Cent.- Amer., Diptera, Vol. II, p. Ili4; May, 18!>0: Ft'osplienjxa. Flagi- 

 prospherysa valida Townsend, Trans. Amer. Ent Soc, Vol. XIX, p. ^ a^^^,itZj„..^l 

 113; May, 1892. Plafjiprospherysa Jioriden.sis Townsend, loc. cit., p. 

 114.) liurvipaJpis v. d. W. 



Genus METAPLAGIA Coq. ^ 



Metaphujia Co(iuillett, Joiiniul N. Y. Ent. Soc, Vol. Ill, p. 102; September, 1895. 



Our species is black, the tirst two joints of the antenna* and the .'^ f'iyeX^ 

 palpi, yellow; three postsutural and threes sternopleural inacrocluetai; 0^^^ 

 lengtii, 7 mm. From the type specimeu.'A^San Diego County, Cal. 

 (Loc. cit., p. 103.) occidentalis Coq. 



Genus PARAPLAGIA Br. and Berg. 



Paraplafjia Brauer and. IJergeustamin, Zweif. Kais. Mus. Wien, V, p. 354; 1891. 



Our two sijecies are black, the first two joints of the antenu;e and 

 ])alpi yellow; three postsutural and three sternopleural macrochaitte: 



Third joint of antemue at most one and one-half times as long as the 



second, third vein bristly almost to tip of discal cell, first seg- ^^^.-iJu^U^ 

 ment of abdomen destitute of macrocha'tai; length, to 8 mm. J aLaJ<-^. 

 District of Columbia; northern Illinois, and Colorado. (Annales 

 Soc. Eutomol. France, p. UOL'; 1888: Heferopterina. Parapla</ia 

 cinerea Coquillett, Journal N. Y. Ent. Soc, Vol. Ill, p. 101 ; Sep- 

 tember, 1895.) spinoHula Bigot. 



Third joint of antennae three times as long as the second, third vein 

 not bristly to the small crossvein, first segment of abdomen bear- 

 ing a pair of long macrocha'ta'; front of female one and one-fifth 

 times as wide as either eye, three i)airs of orbital bristles, the 

 median pair small, frontid bristles descending to tip of second 

 antennal joint, sales of face wholly covered with short hairs 

 and each bearing a row of about six macrocha'ta', cheeks nearly 

 one-half as broad as the eye height, arista thickened on the basal 

 two-thirds, the penultimate joint one and oiie-half times as long 

 as broad; thorax thinly gray polliiiose, nmrked with four black 

 vitta^; abdomen white i)()llinose (ui bases of last three segments, 

 these bearing discal and maiginal luacrochietai ; wings hyaline, 



