PROSPHERYSA. 123 
outwardly with short bristles; middle tibize with some long bristles ; hind tibiee outwardly nearly fringe- 
like with bristles and with a longer bristle below the middle; foot-claws andpulvilli elongate in the male, 
the pulvilli whitish. Tegule and wings greyish-hyaline ; small cross-vein nearly on the middle of the 
discal cell; apical and posterior cross-veins in the same oblique direction, the apical slightly concave, the 
posterior more distinctly curved. 
Hab. Mexico, Omilteme in Guerrero 8000 feet (H. IZ. Smith). 
One male and three females. 
13. Prospherysa rectinervis, sp. n., 9. 
Cinereous; four thoracic stripes, hind borders and reflections on the abdominal segments, antenne, and legs 
black ; palpi rufous ; exterior cross-veins straight. 
Length 5 millim. 
Front yellowish-white, scarcely broader than the eyes; frontal band brown, as broad as the lateral portions ; 
frontal bristles on each side in a single row distinctly descending to beneath the second antennal joint; 
face and cheeks white, somewhat silvery. Antenne descending to the vibrisse ; second joint bristly ; 
third joint five times as long as the second; arista indistinctly jointed, thickened to beyond the middle. 
Proboscis black; palpi pale rufous. Thorax and scutellum greyish-cinereous ; thoracic dorsum with four 
equal black stripes, which are “conspicuous even behind the transverse suture; scutellum flattened. 
Abdomen ovate; first segment black; the following segments greyish-cinereous, with black reflections, 
which sometimes form a dorsal and two lateral spots, the hind borders always shining black and with 
macrochset ; ventral surface blackish. Middle tibize with some long bristles; hind tibie outwardly with a 
row of short bristles and with a longer bristle below the middle. Tegule whitish. Wings nearly hyaline; 
small cross-vein scarcely before the middle of the discal cell; apical and posterior cross-veins straight, 
and in the same oblique direction. 
Hab. Mexico, Chilpancingo in Guerrero 4600 feet (A. H. Smith). 
A single female specimen. 
14. Prospherysa minuta, sp.n.,?. (Phospherysa minuta, Tab. III. fig. 16.) 
Greyish; frontal band, hind borders of the abdominal segments, antenne, and legs black; frontal band 
. narrow, linear. 
Length 4:5 millim. 
Head white; front nearly as broad as the eyes; frontal band very narrow ; frontal bristles descending on each 
side in a curved row to beneath the second antennal joint; face laterally silvery ; facial bristles mounting 
as far as the base of the third antennal joint. Antenne nearly as long as the face; third joint six times as 
long as the second; arista thickened in its proximal third. Proboscis and palpi black (in one of the specimens 
the palpi seem to have a rufous tip). Thorax greyish-cinereous, anteriorly with four black lines, the 
outer of which are less distinct; scutellum cinereous. Abdomen elongate-oval; first segment black, 
short; the following segments greyish, with black reflections on the hind borders and a black dorsal 
. stripe; macrochete only on the hind margins of the segments ; ventral surface blackish. Femora with 
bristles on the underside, the front femora also with bristles on their upperside ; front tibie outwardly 
with a row of bristles; middle tibiee with some long bristles; hind tibiz outwardly with several bristles 
of unequal length; foot-claws and pulvilli short. Tegule whitish. Wings greyish-hyaline; small cross- 
vein distinctly before the middle of the discal cell; curvation of the fourth vein with a somewhat blunt 
angle; apical and posterior cross-veins slightly curved, and in almost the same oblique direction. 
Hab. Mexico, Cuernavaca (H. H. Smith). 
Four female specimens. 
r 2 
