18 PROCEEDINGS OF THE NATIONAL MUSEUM vol.68 



TIPULA BUBO Alexander 



1918. Tipula bubo Alexander, Journ. N. Y. Ent. Soc, vol. 26, pp. 69-70. 



One male, Okeanskaja, Siberia, August 1923 (T. D. A. Cockerell). 

 The fly had hitherto been known from Saghalien, Hokkaido and Hon- 

 shiu, Japan. 



TIPULA USURIENSIS. new species 



General coloration gray; wings pale yellowish brown, the stigma 

 pale brown; abdominal tergites bilineate with dark brown; male 

 hypopygium with the sclerites fused into a continuous ring; emar- 

 gination of the ninth sternite with two fleshy flattened lobes, mar- 

 gined with long yellow setae. 



Male. — Length about 12 mm.; wing, 13.5 mm. 



Frontal prolongation of head brownish yellow above, paler later- 

 ally; palpi dark brown. Antennae moderately elongate, if bent 

 backward, extending about to the base of the abdomen; black, the 

 second scapal segment and the base of the first flagellar segment 

 brownish yellow. Head dark-colored, gray pruinose, the anterior 

 part of the vertex obscure yellow. 



Thorax of the unique type badly discolored; gray, the praescutum 

 with four darker stripes; scutellum largely pale. Pleura pale, with 

 sparse brownish markings; postnotal pleurotergite likewise pale. 

 Halteres pale brownish yellow, the base of the stem brighter. Legs 

 with the coxae dark, paler apically; trochanters yellow; femora 

 brownish yellow, the tips extensively brownish black; tibiae brown, 

 the tips gi-adually deepening into black; tarsi long and slender, dark 

 brown. Wings with a pale yellowish brown tinge, the base and 

 costal region somewhat brighter colored; stigma relatively small, 

 oval, pale brown; obliterative areas before the cord relatively indis- 

 tinct, more evident before the stigma at the end of Rs and across the 

 proximal end of cell 1st M^; veins dark brown, those in the flavous 

 areas brownish yellow. Venation: Rs very long and almost straight, 

 in alignment with R^+i', tip of R^ atrophied, the subterminal section 

 of the vein being in alignment with r which bears macrotrichiae 

 throughout its length; distal section of vein R^ entirely preserved; 

 cell iV/j nearly twice its petiole; cell 1st M^ long and narrow; m-cu 

 distinct, about twice its length beyond the fork of M; cell 2nd A 

 relatively narrow. 



Abdominal tergites buffy yellow, with a sublateral brown longi- 

 tudinal stripe on either side; hypopygium darker. Male hypopy- 

 gium with the tergite and sternite fused in a continuous ring (fig. 11). 

 Ninth tergite (fig. 10) relatively small, the caudal margin with a 

 small lobe on either side of the median line, the apex of each lobe 

 blackened and densely set with black spines; caudo-latcral angles 

 of the tergite subacute. Outer dististyle cylindrical but very short. 



