THE CANADIAN ENTOMOLOGIST 145 



UxNDESCRIBED AFRICAN CRANE-FLIES IN THE BRITISH 

 MUSEUM. (TIPULID^, DIPTERA). 



BY CHARLES P. ALEXANDER, 

 Urbana, 111. 



For the past several years the writer has been engaged in preparing a 

 monographic revision of the crane-flies of the Ethiopian Region. The collec- 

 tions of many of the museums in America, Europe and South Africa have been 

 generously loaned me for study in the continuation of this work. The largest 

 collections of tropical African Tipulidae available are those of the British Museum 

 (Natural History), and I would express my sincere thanks to Mr. F. W. Edwards 

 for his kindness in sending me this material. The Limnobiin^e of this collection 

 are discussed in another paper; part of the Tipulinse are described in this article. 



Genus Habromastix Skuse. 

 Habromastix edwardsiana, sp. n. 



General coloration rusty-brown; wings pale brown, cells C and Sc and the 

 wing-apex dark brown; a pale area before and beyond the stigma; fusion of 

 JI/3 and Cui extensive; abdomen black, ringed with obscure yellow. 



Jl/fl/f.— Length 10.5 mm.; wing 10.4 mm.; antenna 10.3 mm. Hing leg, 

 femur (5.3 mm.; tibia 9 mm. 



Female. — Length 10.3 mm.; wing 10.2 mm. 



Rostrum and palpi pale brown. Head vertical in position, the frontal 

 prolongation very short. Antenna? pale brownish yellow, brightest basally, 

 the outer segments darker; scapal segments small; first flagellar segment en- 

 larged basally; flagellar segments clothed with a long, erect pubescence and 

 provided with a few, very tiny, black verticils. \'ertex bright brown; head 

 between the eyes broad. 



Mesonotal praescutum rusty-brown without stripes; remainder of the 

 mesonotum a little darker. Pleura pale brown, the mesepiraeron a little brighter. 

 Hal teres pale brown, the base of the stem brighter, the knobs dark brown. 

 Legs with the coxae and trochanters brownish yellow^; femora and tibiae pale 

 yellowish brown, the tips conspicuously blackened, the latter very narrowly; 

 tarsi yellowish brown, only the distal segments darkened. Wings with a strong, 

 brownish tinge; cells C and Sc dark brown; stigma dark brown; apices of cells 

 Ri and R^ strongly darkened; cross-veins and deflections of veins indistinctly 

 seamed with brown; a conspicuous M'hitish area before the stigma in cell 2nd Ri 

 and a smaller, but similar, area beyond the stigma in the base of cell Ry; cells 

 in the vicinity of ]st- J/o indistinctly centred with paler; veins dark brown. 

 \'enation: Rs strongly arcuated at origin; tip of Ri somewhat indistinct; basal 

 deflection of Ro nearly as long as r; cell 1st Mi pentagonal; petiole of cell M^ 

 about equal to m; basal deflection of Cux just beyond the fork of M, the fusion 

 of 3/3 and Ciii being a little shorter than the basal deflection of ilfi+o. 



Abdomen with the first segment yellow; remaining segments with the 

 basal and apical thirds black, the middle third obscure yellow, producing a 

 narrow, pale-ringed appearance; eighth and ninth segments black. In the 

 female, the abdomen is almost uniformly drak brown in colour and greatly dis- 

 tended with eggs. Male hypopygium of an unusually generalized structure, 



June, 1920 



