86 A7in-als Entomological Society of America [Vol. XII, 



Tipula devia sp. nov. 



Yellow. Antennee yellow, flagellar joints beyond the third, brown 

 at the base. Thoracic stripes obsolete. Pleurite of hypopygium 

 tipped with a sharp point. 



Male, length 13 millimeters, wing 14.5 millimeters. 



Head entirely, together with mouth-parts and palpi, yellow; 

 last joint of palpi a trifle longer than the three preceding joints 

 together. Antennas yellow, flagellar joints beyond the third brownish 

 at the base; joints cylindrical, basal enlargement very slight, the setee 

 about as long as the respective joints. Thorax concolorous, dorsum 

 subtranslucent, stripes obsolete, pleura with a faint whitish sheen, 

 coxae and trochanters yellow, rest of legs lost. Halteres pale yellow, 

 club infuscate. Wings light gray, costal cells yellow, stigma' light 

 fuscous, veins C, S C, R and Cu, yellow, the other veins brown; the 

 antestigmal spot strongly marked, extending through cell 1st M2 into 

 base of cell M3. As far as I can perceive, vein Ml and M2 alone are 

 distinctly setigerous, the setae rather long. 



Abdomen yellow, darker posteriorly, the eighth sternite very little 

 prolonged, the posterior margin with a median notch and a slight 

 emargination on each side; a dense brush of golden-yellow, bristly hair 

 arises from beneath the margin and a stout bristle, curved outward 

 from the lateral angle. Hypopygium .(PI. V, Figs. 1 and 2) testa- 

 ceous. Ninth tergite markedly narrowed posteriorly, deeply emarginate, 

 the upper surface impressed mesially, the sides of the tergite prolonged 

 into an acute process, denticulate within. Ninth sternite broadly 

 emarginate, base of the emargination subangulate. Pleural suture 

 obsolete, the pleurite projects as an acute point. Outer apical append- 

 ages large, hatchet-shaped, projecting inward, lower appendages large, 

 sausage-shaped bodies, coarsely hairy and projecting downward into 

 the emargination of the ninth sternite. 



Holotype, cf. Plummers Island, Maryland, June 28th, 

 1914 (W. F. McAtee). 



A distinct, but somew^hat aberrant species in this group. 

 The absence of the pleural suture, the pleurite merely projecting 

 into an acute point and the scarcely prolonged eighth sternite 

 is at variance with the other species included in this paper. 

 It is the only species with bicolored antennal fiagellum and the 

 only one from the Eastern United States. The type and 

 only specimen is defective, an antenna, one wing and all the 

 legs wanting. 



Note: — Since the above has been written, three more 

 specimens of this species have turned up in my collection. 

 A male. Southern Pines, North Carolina, June, 1910, (A. H. 

 Mance) ; a male and female specimen, JBlack Mountain, North 

 Carolina, July, 1912, (Wm. Bentermueller). 



