58 Dr. C. P. Alexander on 
characterized as being pitchy black, the thorax more dilute ; 
legs brown, with the knees, the tibial tips, and the tarsi 
white. At the base of the fore femora are two spinules. 
Specimens from Madagascar that Osten-Sacken later re- 
ferred, with considerable doubt, to fragillima had the entire 
distal third of the tibie white. In the present species the 
entire distal half of all the legs in both sexes is white. 
Trentepohlia (Mongoma) reisi, sp. n. 
General coloration brown, more yellowish beneath ; femora 
and tibize with the tips white; tarsi white; femora with a 
series of about a dozen spines near the base ; posterior tibic 
with a series of from eight to ten stout sete ; wings nearly 
hyaline, 
Male (type).—Length 86 mm.; wing 8 mm.; fore leg, 
femur 12°5 mm., tibia 16 mm.; hind leg, femur 14°3 mm., 
tibia 15 mm., tarsus 11 mm. 
Male (series).—Length 8°6-9°5 mm.; wing 7°6-9 mm. 
Female (series).—Length 10 mm. ; wing 8°6. 
Rostrum light yellow; palpi dark brownish black. An- 
tenne moderately long, dark brownish black, the flagellar 
segments long-oval. Head dark brown, paler on the occiput 
and underneath on the genze, which bear a few long curved 
hairs. 
Pronotum dark brown above, yellowish laterally. Meso- 
notal prescutum yellowish brown, darker brown anteriorly ; 
remainder of mesonotum pale brown. Pleura pale yellow, 
a little more brownish dorsally. Halteres short, dark brown, 
the base yellowish. Legs with the coxe and trochanters 
yellow ; femora dark brown, paler at the base, the tips 
passing into white; tibia brown, the bases indistinctly 
whitish, the tips passing into white, these about twice as 
wide as the white femoral tips ; tarsi white or pale yellowish 
white. All the femora with a series of from ten to seventeen 
short stout black spines near the base, extending in a single 
row along the ventral face ; these spines are slightly variable 
in number, but are apparently more numerous on the fore 
femora ; femoral tips with a few slender blackish hairs; hind 
tibie near the tip with from eight to ten long, curved, erect, 
black sete, five or six of which are grouped on the white 
tips, the proximal three or four less crowded and located on 
the brown areas. Wings nearly hyaline, the costal and 
subcostal cells a little more yellowish ; stigma pale brownish 
yellow; veins pale brown. Venation: similar to 7. albi- 
lata, differing as follows :—cell 1s¢ MZ, shorter and broader ; 
