16 NEW OR LITTLE-KNOWN CRANE-FLIES FROM JAPAN 



Female. — Length, about 12 mm.; wing, 11.5 mm. 



The female sex differs from the male as follows : 



Antennae shorter with the flagellar segments less distinctly serrate. Ab- 

 domen shorter and stouter, the distal segments more widened. Ovipositor 

 with the valves rather long for a member of the Cylindrotominae but still 

 fleshy and pubescent. 



The head and thorax, in both sexes of the species, are dull gray pruinose, 

 conspicuously different from the shiny black coloration of the other species 

 of the genus. The praescutal interspaces are vermiculately pitted, producing 

 a rugulose effect similar to that of the vertex. 



Subfamily Tipulinae 



Tribe Tijndini 



Genus TIPULA Linnaeus 



Tipula naviculif er new species 



General coloration gray, the mesonotal praescutum with four dark brown 

 stripes; antennae unicolorous; legs black, the femoral bases yellow; wings 

 light yellow with a sparse brown cross-banded pattern; male hypopygium 

 with a conspicuous boat-like appendage on the posterior margin of the eighth 

 sternite. 



Male. — Length, about IS mm.; wing, 22.5 mm. 



Frontal prolongation of the head light gray; nasus slender; palpi dark brown, 

 the terminal segment passing into yellowish brown. Antennae with the 

 scapal segments dull yellow; flagellum dark brownish black; antennae of 

 moderate length, the flagellar segments subcylindrical, the basal enlargement 

 not conspicuous. Head light gray, the anterior part of the vertex faintly 

 tinged with reddish; a very indistinct dark brown median line. 



Mesonotal praescutum tawny yellow, with four very distinct dark brown 

 stripes, the intermediate pair separated from one another by a narrow line 

 of the ground color; lateral margins and the humeral region a little more 

 grayish; scutum brownish gray; scutellum and postnotum dull gray with a 

 distinct black, interrupted median stri]3e on both sclerites. Pleura clear 

 blue-gray, the dorso-pleural membranes dull buffy yellow. Halteres dull 

 yellow, the knobs blackish, tipped with yellow. Legs with the coxae gray; 

 trochanters dull yellow; remainder of the legs black with a little less than the 

 basal half of the femora yellowish; legs long and slender, the metatarsi longer 

 than the tibiae. Wings with a faint yellow tinge, much more saturated in 

 the costal and subcostal cells and at the wing-base; stigma bicolorous, dark 

 brown, with a large yellow blotch at the proximal-cephalic end; sparse brown 

 markings at the origin of T^s; at the tip of Rs; the fork of Cu: paler grayish 

 clouds near the wing-tif) in cell R^; an interrupted band across the wing ex- 

 tending from the origin of Rs to the caudal margin of the wing in the Isl 

 Anal cell; veins dark brown. Venation: ^^2 persistent; cell R". broad; petiole- 

 of cell M\ verv short. 



