NE\\' DIPTERA FROM SOUTHERN AFRICA. 
By JX ^^'. CoQiTiiXETT, 
Oixf 0(11(1)1. Sect 1(111 of Diptfrn. 
During n visit to tho United States National Museum last year, Mr. 
Charles P. Lounsl)urv. the o-overnment entomologist of Cape Colony, 
Africa, l)roug-ht with him a small but very interesting collection of 
Diptera which ht> wished to have identified, permitting the retention 
of specimens representing species new to the Museum collection and 
re(i nesting that the new forms be duly named and described. As this 
task has now l)een completcHl. the descriptions are ottered herewith. 
SIMULIUM NIGRITARSIS, new species. 
Black, thel)ases of the antenna?, humeri, halteres, front coxae, femora 
except apices of the middle and hind ones, and the tibite except their 
apices, yellow; front femora and their tibije sometimes wholly yellow; 
usually a yellow spot below the humeri; hairs of head and bod}^ pale 
yellow; wings hyaline, the costa, first three veins and first section of 
the foiirtli i-ol)ust, yellowish, the others nearly transparent; length 2.5 
to ?> nun. Six female specimens. Paratypes have }>een returned to 
Mr. Lounsbury. 
Hahltdf. — Cape Colony, Africa. 
Ti/jje.^Ciit. No. 5785." U.S. N.M. 
DACUS LOUNSBURYII, new species. 
Head yellow, occiput, except the upper and lateral margins, reddish 
brown, frontal vitta except its lower end reddish brown, an ocellar 
spot, one near center of front and one on the lunule, blackish, a row 
of four blackish dots along each orbit; a broad reddish stripe in mid- 
dle of face, a black spot on either side near its middle, an oblique 
reddish line near each orbit, and a large ))lack spot ])elow each eye; 
antenna^ nearl}^ twice as long as the head, l)rownish red, the extreme 
base yiellow, the third joint black; palpi and proboscis brownish red, 
apex of the latter largely yellow; body reddish brown, indistinctly 
Proceedings U. S. National Museum, Vol. XXIV— No. 1243. 
