' 9°5 
yO//A^SO.V— BITTACOMORPHA 
75 
SYNOPSIS OF THE TIPULID GENUS BITTACOMORPHA 
BY CHARLES W. JOHNSON. 
'Phis interesting genus is very widely represented by the more common and 
conspicuous species B. clavipes Fabr., which e.xtends throughout Plastern 
North America from the Atlantic to the Rocky Mountains. .All the records from 
the Pacific Slope undoubtedly refer to B. occidental is .Aldrich (Psyche AHI, p. 
201, 1895) and Osten Sacken (Psyche VII, p. 230, 1895). The B. sackenii 
described by von Roder from Nevada (Wiener Entom. Zeit., Heft 8, p. 230,1890) 
has also been recorded from Seattle, Washington, by .Aldrich and re-described by 
him in Psyche VII, p. 200. .A specimen from the mountains of North Carolina 
adds another species to our fauna. 
TABLE OF SPECIES 
1. Tibia; annulated with snow white near the base. 2 
Tibia; not annulated, all the metatarsi white at the tip instead of the base. 
sackenii Rdder. 
2. Metatarsi more or less swollen. 3 
Metatarsi not swollen in the slightest degree, nor annulated at the base, and 
only those of the anterior tipped with white. Jonesi n. sp. 
3. Dorsum of thorax deep velvety black with a white median line, clavipes Fabr. 
Dorsum of thorax shining black, the white median line wanting, occidenf- 
a/is .Aldr. 
Bittacomorpha jonesi n. sp. 
(J Head blackish, front and face covered with a silvery white pollinose; 
antenna; about 4mm. in length, the two basal joints brown, the remainder black 
and strongly pubescent; palpi and proboscis yellowish. Dorsum of the thorax 
shining black, the remainder of the thorax including the scutellum dull yellow, 
slightly darker on the pleune; humeri, a lateral stripe extending to the base of 
the wing and pleurae silvery white pollinose. .Abdomen clavate, black, shining, 
posterior margins of the second, third and fourth segments, and the genitalia 
yellowish, the claspers black. Co.xae light yellow, base of the femora brown 
