2 10 
The Ohio Naturalist. 
[Vol. XIV, No. 2 , 
distributed as follows: the anterior half of the second segment a 
rectangular patch on the anterior middle of the third segment 
occupying two-thirds of the length and over half the width of 
this segment, and a triangular patch on the anterior third of the 
fourth segment; the golden vestiture is longer and coarser than the 
black and most dense on the fourth segment; the first segment 
and all the sutures between segments are thinly gray pollinose, 
giving the effect of gray bands. 
Description taken from the type male which was taken near 
Phoenix, Arizona, June 18th, 1902, by J. T. Lloyd. 
Myiolepta auricaudata Williston. According to Williston’s 
figure and description this is a dark colored species with short 
golden tomentum on the thorax and on part of the abdomen, 
especially the last segment. The two sexes are much alike, 
but the tomentum of the female mesonotum is not so yellow. 
Length 6-7 millimeters. Not having much material of the 
species I reproduce Williston’s description. 
“Male allied to M. strigilata Loew. Body clothed with 
sparse white or yellow tomentum, this being longer, dense and 
brassy on the terminal abdominal segments. Vertical triangle 
long, opaque white in front; contiguity of the eyes short. Face 
and front clothed with dense white pollen and some golden tomentum 
on the frontal triangle; a broad shining, bare spot above the base 
of the antennae; a transverse band on the face, extending down on 
tubercle, and the cheeks also, bare and shining black. Tomentum 
of the mesonotum golden-yellow, arranged in indistinct row’s. 
Second abdominal segment and the anterior part of the third 
with the tomentum more sparse, apparently bare in certain lights; 
on the posterior part of the third segment and on the fourth 
the tomentum is longer, dense, bright brassy-yellow, concealing 
the ground-color. Legs black; the base of the middle and hind 
tibiae, the middle metatarsi, and the hind metatarsi in part, 
light yellow or white; femora thickened and with spinulcs below. 
Wings subhyaline, clouded with brownish distally. ” 
“Female: Front black, w r ith sparse white tomentum and 
two small, oval, white pollinose spots on each side; face shining 
black, with an infra-antennal band and a narrov r stripe from the 
eye to the oral margin white-pollinose. Tomentum of the meso¬ 
notum more white than in the male.” 
A female, apparently of this species, before me u’as taken 
in the Hauchuca mountains, Arizona. Williston studied tw r o 
specimens from the state of Guerrero and Morelos, Mexico. 
This species is generally darker than strigilata and according 
to Williston, the antennas are darker and the facial spots are 
lacking. . 
