HORSEFLIES OF THE SUBFAMILY TABANINAE 9 
spots, often very small, on tergites 2 or 3 to 5 or 6, reaching their greatest size 
on 4 and 5; venter nearly uniformly dark gray. 
Male.—Hyes actually in contact for only a short distance, densely pilose, 
the lower facets smaller and the area rather distinctly differentiated from the 
area of larger facets above; vertex with dense, white hair; frontal triangle 
white, with a velvety-black median spot extending downward between the 
antennae. First antennal segment a stout cylinder, its thickness about five- 
eighths its length, black, with a mixture of long black and white hairs; second 
segment small, black, with black hair; third black. Genae white, with black 
spots above, from which arise black hairs; hairs of lower genae and of clypeus 
white. Palpus stout, narrowed to a blunt apex. Rest of body coloration 
essentially as in female. 
Described from a specimen in the University of Alberta, collected 
at Roblin, Manitoba, July 8, 1931. 
Type—A specimen labelled “type” in a series of five female co- 
types, Museum of Comparative Zoology No. 4002, is herein desig- 
nated as lectotype. 
Type locality—Hudson Bay Territory. 
Distribution.—Central Alaska to New Mexico, Ontario, and Minne- 
sota. June 16 (Roseau County, Minn.) to August 12 (Yellowstone 
Park, Wyo.). In the United States National Museum, 16 females. 
This species has been placed as a synonym, or possible synonym, 
of Haematopota crassicornis Wahlberg. Although it is close to this 
European species, its pale haltere and the somewhat broader pale 
maculations on the wing serve to separate it. 
HAEMATOPOTA PUNCTULATA Macquart 
(Higsy eB) 
Haematopota punctulata Macquart, Diptéres exotique nouveaux ou peu connus, 
v. 1, pt. 1, pp. 163-164, 1988; Johnson, Psyche 19: 182, 183, 1912. 
Small; dark brown; wing finely maculated with white and apical band rather 
broad and reaching hind margin; fore tibia strongly swollen; third antennal 
segment short and stout and first with a distinct, subapical, dorsal notch. 
Female—Length 6-7 mm. Eye with short pile. Frons brownish gray, with 
a rather large, semicircular, velvety-black spot on each side, the angles 
touching basal callus and eye; median spot very small; a rectangular, brown, 
Genuded spot on median line in contact with basal callus, and partially denuded 
areas at each side of small median spot; width of frons above about equal 
to height, but widened below; vertex somewhat depressed; basal callus shiny 
brown, rugose above, the upper margin excised each side of middle; subcallus 
yellowish, with a median velvety-black patch. First antennal segment shiny 
brown, with some thin grayish pollen on inner surface near base, about twice 
as long as thick, with a distinct, dorsal, subapical depression; third segment 
dark brownish, the basal portion about two-thirds as broad as long, with a 
narrowed base but no dorsal angle; annulate portion short, stout and com- 
pressed, about as long as width of basal portion. Clypeus and genae gray, with 
whitish hair, the genae with large brown spots confluent above to form a patch 
extending from antenna to eye. Second palpal segment creamy white, rather 
elongate, with a blunt apex and long, sparse, white hair. Proboscis slightly 
longer than palpus. 
Thorax brown, the mesoscutum with three narrow gray lines on anterior 
margin not reaching more than half way to scutellum. Haltere with brownish 
knob. Wing uniformly dark brown, with a rather broad, apical, pale band 
reaching hind margin and many small maculations forming indistinct rosettes; 
posterior margin narrowly white. Legs brown, the fore tibia considerably 
swollen, with a subbasal whitish band; middle and hind tibiae only slightly 
swollen, each with a subbasal and a subapical whitish band; bases of middle 
and hind tarsi whitish. 
Abdomen dark brown, with narrow paler hind margins and very faint, sub- 
lateral, paler spots on each tergite. 
Male——Unknown. 
