28 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
marked with })]ackish, mo.sonotuni iiiarkod behind the suture with 
three yeUow vitta', a Yelh)W fa.scia extends alonj^ the .suture, crosses 
the uiesopleura and enei-oaehes on the sternopkuira; a spot on the 
hypopleura, hind margin of the scuteUum and of the second abdominal 
segment kiterally yellow; abdomen three times as long as wide, the 
third segment in the male bearing a row of black bristles extending 
from the venter half wa}- to the middle of the dorsum, situated a short 
distance in front of the hind margin; wings hyaline, a brownish band 
along the costa, tilling apex of subcostal cell beyond auxiliary yein, 
the w^hole of the marginal and submarginal cells, apical three-fourths 
of the hrst posterior and upper edge of the second posterior cell, 
faintest in ))asal portion of submarginal cell and darkest in the pos- 
terior cells, that in first posterior cell sometimes haying a sulihyaline 
median streak; anal cell tilled with yellow and brown, its lobe and the 
vein extending beyond its apex bordered with brown; base of first 
basal cell to forking of second and third yeins yellowish; legs reddish 
brown, first tarsal joint except apex, and broad bases of hind femora, 
white; halteres whitish, leases of the stems reddish brown; basal seg- 
ment of ovipositor of female greatl}" flattened, shorter than the pre- 
ceding al)dominal segment; length 11 mm. Three males and seven 
females. Paratypes returned to Mr. Lounsbury, for whom this fine, 
large species is named. 
Ilabitat. — Capetown and Wynberg, Cape Colony, Africa. 
Tt/pe.— Cut. No. 57S0, U.S.N.M. 
DACUS BREVIS, new species. 
Head yellow, frontal vitta sometimes tinged in places with reddish 
yellow, the occiput except along the eyes j^eHowish l)rown, a dark 
brown spot above center of front, a small black spot on the ocelli, 
three along each orbit, one on the frontal lunule, and one on either 
side of center of face, a Ijrown spot below each ej^e; antenniv shorter 
than the head, yellowish l)rown, becoming dark ])rown at the apex, 
arista l)lack, the base yellowish, pi'oboscis and palpi Itrownish yellow; 
body reddish brown, mesonotum and a])domen with a mediodorsal 
black line, and sometimes Avith blackish markings; humeri, a stripe 
along the thoracic suture crossing the mesopleura and encroaching on 
the sternopleura, a rounded spot on the hypopleura, and the scutellum 
except its extreme base, yellow; a])domen one and a half times as long 
as wide, the third segment in the male bearing a row of ])lack liristles 
extending fi'om the venter nearly halfway to the middle of the dorsum; 
wings hyaline, the sulicostal and marginal cells, l)ase and usually the 
very narrow upper edge of the submarginal cell )>eyond apex of the 
marginal about halfway to tip of third vein, where it expands and fills 
the entire apical portion of this cell and encroaches on the first pos- 
terior cell, l)rown, a brown cloud on distal ])art of anal cell; apex of 
