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Genus PARADIDYMA Br. and Berg. 
Paradidyma Brauer and Bergenstamm, Zweif. Kaia. Mus. Wieii, V, p. 382; 1891. 
Atrophopoda Townsend, Trans. Amer. Ent. Soc, Vol. XVIII, p, 373; December, 1891. 
Lack nomma Towuseud, loc. cit., Vol. XIX, p. 103; May, 1892. 
The synonymy of Lachnomma with Paradidyma is given with a query 
by Brauer and Bergenstamm. 1 In the Trans. Amer. Ent. Soc. 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 maerochaetae ; length, G to 9 mm. 
Springfield, Mass.; northern Illinois; District of Columbia; Georgia; 
Agricultural College, Miss.; Texas; Custer County, Colo.; Las Crimes, 
K Mex.; and Kern County, Cal. (Trans. Amer. Ent. Soc, Vol. XVIII, 
p.374j December, 1891 : Atrophopoda. Lachnomma magnicornis Town- 
Bend, loc. cit., Vol XIX, p. 104; May. 1892. .'Paradidyma sp., Brauer 
and Bergenstamm in lift.) singularis Town. 
Genus ATR0PH0PALPUS Tcwn. 
Atrophopalpua Townsend, Entomological News, Vol. Ill, p. 130; June, 1892. 
Our single species is black, the palpi yellowish: three postsutural 
and two sternopleural macrochajta* ; length, 4f to 7 mm. Lake Worth, 
Fla. (Loc. cit., p. 131.) angmticomis Town. 
Genus METACELETA Coq. 
Metachceta Coqtfillett, Journal X. V. Ent. Soc., Vol. Ill, 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- 
chaetae; length, 4 too mm. 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. Metachceta atra Coquillett, Journal N. Y. Ent. Soc, Vol. Ill, 
1). 99 ; September, 1895.) helymus Walk. 
Genus PHORICH^TA Rond. 
Scopolia Desvoidy, Essai but les Myodaires, p. 268; 1830. (Non Huebner; 1816.) 
Phoriclucta Roudani, Dipterologia 1 Italics Prodroraus, 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 macroclneta 1 ; wings hyaline, the veins 
and crossveins sometimes bordered with brown; length 4 to 6 mm. 
Zweif. Kais. Mus. Wien, VI, p. 193; 1893. 
