1929] 
New Asilidce from Mexico (Dipt era) 
47 
ish. Mystax composed of many, thickly-placed, short, stout 
bristles, mostly black, but a few pale yellowish ones in the 
upper part. Thorax black, grayish pruinose, the mesonotum 
with two black median lines and two lateral spots on each 
side. Pleura gray pollinose and white haired. Mesonotal 
bristles black with a few white hairs anteriorly. Anterior 
portion of scutellum grayish pollinose, with black hairs and 
marginal bristles. Halteres pale reddish. Wings nearly 
hyaline, the apex and posterior border lightly grayish. Legs 
black, the femora and tibiae covered thickly with long fine 
white pile. A few black hairs and bristles present ; those of 
tarsi all black. First five segments of abdomen black with a 
black bristle and fine white hairs on each side of the seg- 
ments. The first three segments have the median area of a 
deep reddish hue, and the 6th and following segments are 
light reddish with reddish hairs. Genitalia small, reddish 
with concolorous hairs. 
Holotype, $ , no. 63. Coatepec (Ver.) 
Mallophora albicincta n. sp. 
Length, 22 mm. A rather slender species, related to M. 
nigritarsis Wied. and M. scopifer Fabr. having a white beard, 
yellow face and mystax, brown thorax, yellow legs (except 
tarsi which are black) and a black abdomen with snow- 
white hairs on the first 2 segments. There is a tuft of white 
hairs on the scutellum also. 
Female . Antennae black with black hairs. Palpi black with 
yellow hairs except on tip where hairs are black. Beard 
white. Mystax and face golden, a number of black bristles in 
lower portion of mystax. Occipital bristles black, hairs pale 
yellow. Thorax dark brown. Pleura and pronotum with white 
hairs. A few black bristles over base of wings. Scutellum 
yellowish brown, thickly set with white hairs. Coxae piceous ; 
femora and tibiae (except tip of posterior tibiae which is 
blackish) bright yellow with concolorous hairs. A few black 
bristles at base of hind femur. Tarsi piceous with black 
hairs and bristles. Abdomen black, ventral hairs white. First 
two tergites with white hairs, rest with short black hairs. 
Ovipositor with fine white hairs. 
Holotype, $ , no. 57. Coatepec (Ver.) 
