81 
the vittse indistinct; wings hyaline, calypteres white; length, 
3 mm. Las Cruces, N. Mex. Two male specimens collected 
September 17, by Mr. T. D. A. Cockerell. Type No. 3580, U.S. 
BI ACHOM Abe MMSE IM er tytn es eas GEL Lose nana D. Sp. 
3. Second segment of abdomen bearing a (distinct marginal pair of 
macrochietie, abdomen gray pollinose, usually marked with two 
or three rows of blackish spots; length, 3 to 6mm. Toronto, 
Canada; White Mountains, New Hampshire; Springfield, Mass. ; 
New York City, N. Y.; Maryland; Virginia; North Carolina; 
Tifton, Ga.; Texas; Colorado; Washington, and southern Cali- 
fornia. (Biol. Cent.-Amer., Diptera, Vol. II, p.89; March, 1890: 
Miltogramma, Arrenopus americana Brauer and Bergenstamm, 
Zweif. Kais. Mus. Wien, V, p. 361; 1891. Miltogramma argen- 
tifrons Townsend, Trans. Amer. Ent. Soc., Vol. X VIL, p. 357; 
November, 1891. Miltogramma cinerascens Townsend, loe. cit., 
p. 308. Arrenopus sp., and Sphixapata sp., Brauer and Bergen- 
SU CMMRUR HID IUEL Gs tS Ses) eta Abn s 5 aldo Sac trilineata v. d. W. 
Second segment destitute of a marginal pair of macrochetie, abdo- 
men shining, bases of last three segments white pollinose; black, 
the frontal vitta, first two joints of antennz and the palpi, yel- 
low; sides of front and face white pollinose, thorax whitish 
pollinose, the vitta not distinct, wings hyaline, calypteres white; 
length, 3 mm. Las Cruces, N. Mex. A single male specimen 
collected September 17 by Mr. T. D. A. Cockerell. Type No. 
SoeiesWe Se Nabional Ninseum so. ojo oe Pesce Se Jfusciata i. sp. 
Genus PP9EUDOTRACTOCERA Town. 
Pseudotractoceru Townsend, Trans. Amer. Ent. Soc., Vol. XIX, p. 107; May, 1892. 
Our species has three postsutural and three sternopleural macro- 
chietiv, is black, the first two joints of the antenne and the palpi yellow; 
apex of antennie distant from the oral margin the length of the third 
antennal joint; length, 7.5mm. From aco-type specimen. Las Cruces, 
Mee (OC: Clb. MOS.) <n SPS ee ook o. neomexicana Town. 
Genus BIOMYIA Rond. 
Fabricia Meigen, System. Besch. Eur. Zweif. Insekten, Vol. VII, p. 250; 1838. 
(Non Blainville; 1828. Non Desvoidy; 1830.) 
Biomya Rondani, Dipterologize Italicze Prodromus, Vol. I, p. 72; 1856. 
Viviania Rondani, loc. cit., Vol. LV, p. 53; 1861. 
Masiphya Brauer and Bergenstamm, Zweif. Kais. Mus. Wien, V, p. 313; 1891. 
Viviania was proposed for the genus Fabricia of Meigen, the name 
Fabricia having been previously used by at least two different authors. 
On the same page Rondani acknowledges that his genus Biomyia is 
synonymous with Viviania. Specimens identified by Brauer and Ber- 
genstamm as Masiphya brasiliana, the type species of this genus, do 
not possess any character of sufficient importance to warrant its sep- 
3309——6 
