126 
Genus PARADIDYMA Br. and Berg. 
Paradidyma Brauer and Bergenstamm, Zweif. Kais. Mus. Wien, V, p. 382; 1891. 
Atrophopoda Townsend, Trans. Amer. Ent. Soc., Vol. XVIII, p. 373; December, 1891. 
Lachnomma Townsend, loc. cit., Vol. XIX, p. 103; May, 1892. 
The synonymy of Lachnomma with Paradidyma is given with a query 
by Brauer and Bergenstamm.' In the Trans. Amer. Ent. Soe. for 
1895, page 77, Mr. Townsend suggests that the supposed type species 
of his two genera, Atrophopoda and Lachnomma, are but the opposite 
sexes of one and the same species, and the specimens in the National 
Museum fully establish the accuracy of this supposition. Our single 
species is black, the palpi and apex of proboscis yellowish; three 
postsutural and three sternopleural macrochete; length, 6 to 9 mm. 
Springfield, Mass.; northern Uhnois; District of Columbia; Georgia; 
Agricultural College, Miss.; Texas; Custer County, Colo.; Las Cruces, 
N. Mex.; and Kern County, Cal. (Trans. Amer. Ent. Soc., Vol. X VIII, 
p. 374; December, 1891: Atrophopoda. Lachnomma magnicornis Town- 
send, loc. cit., Vol. XIX, p. 104; May,1892. ?Paradidyima sp., Brauer 
and Bersenstamam: (7 ith,) ~ 228 ck Se. So ee singularis Town. 
Genus ATROPHOPALPUS Tcwn. 
Atrophopalpus Townsend, Entomological News, Vol. III, p. 180; June, 1892. 
Our single species is black, the palpi yellowish; three postsutural 
and two sternopleural macrochete; length,43 to7 mm. Lake Worth, 
late MOG: Clb. Lol a)ic rae tas ee cee ee eee angusticornis Town. 
Genus METACH ATA Cog. 
Metachata Coquillett, Journal N. Y. Ent. Soc., Vol. III, p. 98; September, 1895. 
Our single species is black, the palpi and apex of proboscis yellow; 
body not pollinose; three postsutural and two sternopleural macro- 
chietee; length,4to5mm. From the type specimen. Toronto, Canada; 
Franconia, N. H.; northern Illinois; Colorado, and Santa Cruz Moun- 
tains, California. (List of Dipterous Insects, Part IV, p. 795; 1849: 
Tachina. Metacheta atra Coquillett, Journal N. Y. Ent. Soc., Vol. III, 
pe lo sSeptember, 189b.) sats 2 ane ees ee ee helymus Walk. 
Genus PHORICH ETA Rond. 
Scopolia Desvoidy, Essai sur les Myodaires, p. 268; 1830. (Non Huebner; 1816.) 
Phoricheta Rondani, Dipterologivw Italicee Prodromus, Vol. IV, p. 8; 1861. 
The latter name was proposed to take the place of Scopolia, which is 
preoccupied in the Lepidoptera. Our species has the sides of the front 
and the body shining black, and destitute of pollen; three postsutural 
and two or three sternopleural macrochete; wings hyaline, the veins 
and crossveins sometimes bordered with brown; length 4 to 6 mm. 
1 Zweif. Kais. Mus. Wien, VI, p. 193; 1893. 
