1942] 
Notes on Hippoboscidoe 
117 
outer lower edge; a few short setae elsewhere; apices ventrally 
with a patch of strong bristles, but without spurs proper. Tarsi 
short and broad; basal segments with many short stiff bristles; 
apical segment much longer and broader than the others, with 
very long setae, mostly in a transverse dorsal row at the apex. 
Claws symmetrical, unusually long, very deeply divided into 
three slender teeth, the basal “heel” being long and narrow; 
two broad, pad-like, bare pulvilli; one long, slender, feathered 
empodium. Wing very short, pad-like, about twice as long as 
scutellum, scarcely longer than wide; venation crowded over 
the anterior or outer half, of 2 or 3 thick longitudinal veins 
(probably formed by fusion of several veins) ; costa very thick, 
with many long bristles on basal two-thirds and at apex; other 
veins bare; membrane bare. The venation is decidedly more 
reduced than in B. fimbriata. Halteres well developed, borne 
on long stalks. Abdomen (in dried, contracted condition) short, 
densely hairy both above and below. A short, moderately broad 
basal tergite (next to the thorax), covered with minute setae; 
behind this a much wider sclerotized tergite, with incurved hind 
margin and broad side lobes, covered with short, stiff setae, 
with a row of long bristles at the hind margin and a patch of 
even stronger ones at the tips of the side lobes. A short, setulose 
basal sternite. No other sclerotized tergal or sternal plates can 
be made out on the membranous abdomen. Parameres of termi- 
nal i a straight, slender, rod-like, very gradually widened toward 
base, blunt at apex. 
Length: total, in dried condition, 9 mm.; from tips of fronto- 
clypeus to hind margin of scutellum, 5.6 mm.; of wing, 0.8 mm. 
Venezuela: Galipan, close to Pico del Avila, Estado Mi- 
randa, at about 2,000 m. altitude; male holotype , off a square- 
tailed swift, Aeronaut es montivagus (d’Orbigny and Lafres- 
naye). Mus. Comp. Zool., Cambridge, Mass. 
The differences between B. neo tropic a and the only other 
known species have been given under B. fimbriata. 
