106 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 97 
Holotype—Male, Tapachula, Mexico, August 17-19, 1948 (F. M. 
Snyder), American Museum of Natural History. 
DEJEANIOPALPUS BRASILIENSIS Townsend 
Dejeaniopalpus brasiliensis TowNsEND, Rey. Chilena Hist. Nat., vol. 32, p. 368, 
1928. 
Length, 6.5 to 7.5mm. Head mainly yellow, upper half of occiput, 
ocellar triangle, and parafrontals above anterior reclinate frontoorbit- 
als black; pollen yellowish on upper part of occiput and on para- 
frontals, otherwise whitish ; occiput with black hairs above, soft yellow 
pile below. Width of parafacial at narrowest point about half that 
at base of antenna. Antenna largely orange yellow, third segment, 
however, blackish beyond arista; third segment 2.5 as long as second 
in male, 2.0 in female, about 0.35 height of head and 0.6 length of 
palpus; arista yellow on first and second segments, blackish on third, 
its hairs about as long as its maximum diameter. Proboscis with 
rostrum brown, haustellum yellow, becoming brown toward apex, and 
labella brown; haustellum about 0.9 head height, straight, cylindrical, 
somewhat attenuated on penultimate fourth, with short black erect 
hairs, labella with one or two long black hairs at apex, otherwise with 
yellowish hairs. Palpus alike in both sexes, 0.6 as long as height of 
head, no thicker than haustellum; one or two outstanding setulae near 
apex ventrally and an especially long one, about twice maximum diam- 
eter of palpus, at or beyond middle ventrally; a few soft black hairs 
below at base. Two reclinate frontoorbitals, the posterior one small. 
Ground color of thorax black, that of humeri, propleura, and scutel- 
lum except base yellow; pollen yellow on mesonotum and humeri, whit- 
ish on pleura; ner mesonotal vitta definitely wider than diameter of 
a trichopore of a dorsocentral bristle. Anterior presutural supraalar 
present but weak; two relatively strong presutural acrosticals; no dis- 
coscutellars. ‘Tarsi brownish to black; anterior surface of coxae with 
soft yellow hair, legs otherwise with coarse black hair. Cross vein 
r-m opposite last fourth of stigma; part of vein M, beyond cubitulus 
distant from posterior margin by three-fourths or more width of 
cell R;. 
Abdomen in the male yellow, somewhat darker on last two segments, 
with a median black vitta about as wide as distance between hind 
lateroscutellars or, on intermediate segments, somewhat broader, run- 
ning from base of first almost to extreme apex of fourth segment; large 
lateral black spots on segments 3 and 4, a smaller one on segment 2, 
and brownish indications of one on segment 1; intermediate segments 
with margins of tergites next to sternites brownish; in the female 
these markings are expanded so that the median vitta and narrow pos- 
terior border of segment 1, the dorsal aspect of the following tergites 
