184 
Psyche 
[June 
turing to publish it as a new species, still it may prove to be the 
same when we have a series of specimens from the type location. 
Bolichopus maculitarsis sp. nov. 
Female: Length 4-4.5 mm. Face wide with white pollen. 
Front green with bronze reflections. Antennae black, lower 
half of first and second joints yellow. Lower orbital cilia white, 
upper cilia black. 
Thorax, scutellum and abdomen green with bright bronze 
reflections; hairs of the abdomen black. 
All coxae black, their hairs short and black. Fore femora 
black with their tips broadly yellow. Middle and hind femora 
yellow, black at base for a short distance, each with one pre- 
apical bristle. Fore and middle tibiae blackish, more or less 
yellow at base, middle ones sometimes yellowish on upper sur- 
face to near the tip; posterior tibiae and anterior and posterior 
tarsi wholly black; middle tarsi with basal portion of each joint 
dull whitish, contrasting with their black tips, fifth joint wholly 
black, each joint a little enlarged at tip. Joints of fore tarsi are 
as 38-18-13-10-13; of middle ones as 56-31-23-17-17; joints of 
posterior tarsi as 52-55-34-24-17. Each joint of middle tarsi 
with a few minute spines below and a bristle or spur at tip. 
Calypters and halters yellow, the former with dense, deep black 
cilia, which is of moderate length. 
Wings grayish, a little yellow at root; bend in last section 
of fourth vein rather abrupt and near its middle; cross-vein 
22, last section of fifth vein 53 fiftieths of a millimeter; anal 
angle of wing prominent. 
Described from two females. The holotype was taken at 
Baldur, Manitoba, June 23, 1924, by H. D. Bird, and is in the 
Canadian National Museum; the paratype was taken at the 
same place and time, by N. Criddle. 
This is very much like the female of appendiculatus Van 
Duzee, Cole & Aldrich. The middle tarsi of both are formed and 
colored alike. Both have the first two antennal joints largely 
yellow. They differ in the amount of yellow on the antennal 
joints, in the new form these joints have the upper half black, 
