878 
C. H. TYLER TOWNSEND. 
This genus is readily distinguislied from Siphona, to which it bears 
a slight resemblance, by the ))roboscis not being twice geniculate, 
and the arista with the second joint not elongate. It is apparently 
very near Spiroglosm Dol. of the East Indies. 
Dropanogjlosxia liiceiis n. sp. % 9- — -Pfile tawny, at>clomen translucent, 
thorax cinereous. Eyes reddish brown; front, face and clieeks pure silvery 
white; frontal vitta broad behind, entirely covering the ocellar area, narrowed 
in front to width of base of antenme, occupying one-half the width of the front 
in the middle, light tawny yellow in color; two pairs of ocellar bristles, the hind 
pair shorter, inclined .slightly outward, the front pair inclined forward and out- 
ward ; antennae same color as frontal vitta, light tawny yellow, the arista and 
distal half or so of third joint nearly black; first two antennal joints black 
bristly, third very minutely pubescent; proboscis usually much bowed, basal 
portion very light, slightly yellowish, distal half or more blackish ; palpi light 
yellowish : occiput cinereous above, silvery white below, gray hairy, with a 
fringe of alternately short and long black hairs on the border from the vertical 
angle to the oral margin. Thorax scutellum above light cinereous, tinged 
with tawny yellow behind and on scutellum, covered with short black hairs and 
longer black bristles directed backward ; a median posteriorly divergent pair of 
grayish brown vittae becoming obsolete near transverse suture; humeri and 
pleurte silvery; two bristles below humeri directed outward, forward and up- 
ward ; a vertical row of bristles directed posteriorly in front of base of wings, 
three bristles on next sclerite below, front pair directed outward and forward, 
and the hind one outward, backward and upward. Abdomen above very light 
on basal portion, becoming more or less brownish yellow toward the extremity, 
covered with short, appressed, black bristles; segments two, three and four 
darker on hi-ud margin, a blackish median line extending from base to anal ex- 
tremity ; first segment with some longer bristles on the sides, but no macro- 
chfetpe ; second with a lateral one and a median pair; third with six above and 
some shorter ones below ; fourth segment with six macrochteta; ; venter cou- 
colorous, anus dark. very light yellowish, finely black hairy; coxae with 
black bristles on forward surface directed posteriorly; femora with some weak 
black bristles, the longest being on underside of hind pair; tibiae with some 
shorter bristles, tarsi thickly covered with very short black hairs; claws and 
pulvilli a little elongate, about half as long as last tarsal joint. Wings grayish 
hyaline, wing veins light tawny; tegulae whitish, shining, margin narrowly 
opaque, white ; halteres white. Length 4 — 5.5 mm. ; of wing 3.5 to nearly 5 mm. 
Described from thirty-three specimens taken on windows of Agri- 
cultural College building, June ‘29th to July 8th, Las Cruces, N. 
Mex. Some specimens differ in the frontal vitta being of equal 
width, wider than base of antennte in front, occupying throughout 
one-half or more of the frontal width. The probo.scis is often not 
so much bowed, sometimes nearly straight. The tar.si of some are 
shorter, particularly the distal joints, the claws and pulvilli being 
apparently a little less elongate. Yet these differences by no means 
constantly acconi[)any each other ; I am, therefore, uncertain of the 
