PHOROCERA. 85 
Eyes with a short grey pile. Antenne a little shorter than the face; second joint bristly; third joint 
four or five times as long as the second; arista thickened in its proximal third. Proboscis black; palpi 
pale rufous, filiform. Thorax whitish-grey, before the transverse suture with four black lines, these, 
however, not always visible in the blackish reflections, which sometimes cover the whole thoracic dorsum ; 
scutellum black, with grey tomentum. Abdomen elliptical, shining black; first segment as long as the 
second; second and third segments with whitish reflecting spots on the front borders; macrochwts on 
the hind margins but not in the middle of the segments. Femora with long bristles; tibia outwardly 
with some bristles—on the front tibie they are rather short, on the middle and hind tibie longer ; foot- 
claws and pulvilli short. Tegule white. Wings rather broad, greyish-hyaline; small cross-vein a little 
before the middle of the discal cell; third vein somewhat curved before its end; apical cross-vein scarcely 
concave; posterior cross-vein slightly curved. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
Three specimens, apparently all females. 
18. Phorocera appendiculata, sp. n., ¢. 
Greyish-cinereous; four stripes on the thorax, hind borders of the abdominal segments, antenne, and legs 
black ; palpi rufous; curvation of the fourth vein with an appendage. 
Length 7-8°5 millim. 
Head white; front nearly as broad as the eyes; frontal band black; frontal bristles on both sides in a single 
row, descending to beneath the end of the second antennal joint; facial bristles mounting to a little 
beyond the place where the frontal bristles finish; eyes descending to the vibrisse and with a short 
whitish pile; beard white. Antenne shorter than the face, black; the basal joints somewhat clearer ; 
second joint bristly; third joint four times as long as the second; arista thickened in its proximal half. 
Proboscis black; palpi cylindrical, nearly filiform, pale rufous. The four stripes of the thoracic dorsum 
are distinct, but interrupted at the transverse suture; base of the scutellum blackish. Abdomen ovate, 
beset with black hairs, more densely so on the anal segment and the ventral face, where the hairs are 
longer ; first segment black, the following segments greyish, with black hind borders; the second segment 
at the sides slightly testaceous; macrochete on the hind margins of the segments; on the anus there is 
a spine, which is turned under the venter. Middle tibiee with some long bristles ; hind tibie outwardly 
with bristles of unequal length; foot-claws and pulvilli elongate, the pulvilli yellowish. Tegule white. 
Wings greyish-hyaline; small cross-vein on the middle of the discal cell; curvation of the fourth vein 
with a blunt angle and a more or less distinct appendage; apical and posterior cross-veins oblique and 
nearly straight. 
Hab. Mexico, Rincon 2800 feet, and Amula 6000 feet, both in Guerrero (H. H. 
Smith). 
A male specimen from each locality. 
19. Phorocera scutellaris, sp. n., 3. 
Cinereous; thorax with four black stripes; scutellum testaceous ; abdomen conical, second and third segments 
with three black spots; antenne and legs black; palpi rufous. 
Length 10 millim. 
Front pale ochraceous, narrowed behind; frontal band black, as broad as the lateral portions ; frontal bristles on 
each side in a curved row, distinctly descending beneath the second antennal joint, the median bristles 
shorter than the others. Face and cheeks white; eyes descending to the vibrisse and with a short whitish 
pile; beard white ; pilosity of the occiput yellowish. Antenne shorter than the face; second joint bristly ; 
third joint four times as long as the second; arista thickened in its proximal half. Proboscis blackish ; 
palpi cylindrical, pale rufous. Thorax grey; thoracic dorsum with four black stripes, which are very 
distinct before the transverse suture, but somewhat diffuse behind it; scutellum shining testaceous, 
