1919] Johnson — New Species of ike Genus Villa (Anthrax) 1 1 



NEW SPECIES OF THE GENUS VILLA (ANTHRAX). 



By Charles W. Johnson, 

 Boston Society of Natural History, Boston, Mass. 



In my work on the Dipterous fauna of New Jersey and New 

 England, two species of this genus have been the source of con- 

 siderable misgivings. One has been associated with Anthrax morio 

 as a possible variation. The other was determined by the late 

 D. W. Coquillett as Anthrax lepidota O. S. The former is quite 

 widely distributed, while the latter, as far as known, is confined to 

 " pine barrens " of New Jersey. The following diagnoses are given, 

 pending further studies and figures of our eastern species. 



Villa webberi sp. nov. 



cf 9 . Face and front black, with blackish pile and sparse yellow- 

 ish tomentum, antennae black, the style about as long as the three 

 joints taken together. Thorax and scutellum black, pile black, 

 longer and more dense on the pleura, brown in front and whitish on 

 the posterior angles. Abdomen black, pile blackish, white on the 

 sides of the first, second and sixth segments. A sparse yellowish 

 tomentum (easily denuded) is present on most of the segments, 

 especially along the posterior margins. Legs yellowish, front and 

 middle femora, except the tips, and all of the tarsi, dark brown, 

 tomentum yellowish, spines black. Halteres black, tips of the 

 knobs whitish. Wings about half black and half hyaline. The 

 irregular dividing line crossing the following cells: marginal just 

 before the tip of the first vein, near the basal fourth of the first sub- 

 marginal, and basal third of the first posterior, middle of the discal, 

 basal angle of the third posterior, basal fourth of the fourth pos- 

 terior, middle of the anal and basal third of the axillary cell. 

 Length of holotype 6 mm., allotype 9 mm., paratypes vary from 5 

 to 10 mm. 



Twenty-one specimens. Holotype, Lunenburg, Mass., June 3, 

 1914 (R. T. Webber); allotype. Great Barrington, Mass., June 16, 

 1915, and four paratypes, Mt. Ascutney, Vt., July 11, 1908, Benning- 

 ton, Vt., June 21, 1915, Brookline, Mass., June 17, 1918, and Darien, 

 Conn., June 10, 1912 (C. W. Johnson), in the collection of the 

 Boston Society of Natural History. The other paratypes, Brook- 

 line, Mass., June 17 (C. W. J.), Lunenburg, Mass., June 5 to 25 



