108 
Psyche 
[Sept -Dec. 
NOTES ON HIPPOBOSCIDAE. 18. THE GENUS BRA- 
CHYPTEROMYIA WILLISTON; WITH THE 
DESCRIPTION OF A NEW SPECIES 
(DIPTERA) 
By J. Bequaert 1 
Brachypteromyia Williston 
Brachypteromyia Williston, 1896, Ent. News, VII, p. 184. 
Monotypic for Brachypteromyia jemorata Williston, 1896 = 
Anapera fimbriata Waterhouse, 1887. 
Brachyptomyia Speiser, 1907, Ent. News, XVIII, p. 104. Mis- 
spelling of Brachypteromyia. 
Brachypteromia Aldrich, 1907, Jl. New York Ent. Soc., XV, 
p. 6. Misspelling of Brachypteromyia. 
Head horizontal, oval, as long as or longer than wide, deeply 
inserted in the very concave humeral margin of the thorax. 
Dorsal appendage of second antennal segment long, flattened, 
rounded off at apex. Eyes small, of many small facets, ellipti- 
cal, placed dorso-laterally and far from fronto-clypeus and 
postvertex. Fronto-clypeus occupying nearly half the length 
of the head, separated by a long mediovertex from the large 
postvertex. Palpi well developed. Ocelli absent. Thorax with 
large, lobate humeral callosities and prominent prealar angles; 
dorsal sutures either vestigial, incomplete or absent. Scutellum 
transverse, short, distinctly divided from the mesoscutum. 
Mesothoracic spiracle dorsal; metathoracic spiracle between 
the more or less developed metapleural (“pleurotergal”) pro- 
tuberance and the base of the hind coxa. Legs very long and 
thick; tarsal claw three-toothed, the basal “heel” being un- 
usually long and slender ; two pad-like pulvilli and one slender, 
feathered empodium. Wing functionless, reduced to a very 
short pad, about as wide as long, with a few thick rudimentary 
veins in the anterior half. Halteres well developed. Abdomen 
1 From the Department of Comparative Pathology and Tropical Medicine, 
Harvard Medical School, Boston, Mass. 
