18 NEW OR LITTLE-KNOWN CRANE-FLIES FROM JAPAN 



tinned across r; tip of Ri atrophied, leaving only a slight spur beyond r; 

 petiole of cell Mi short; m-cu distinct. 



Abdomen with the basal tergites gray; tergite two and the base of three 

 yellow, dark brown medially; remaining tergites dull black, the caudal mar- 

 gin of the segments narrowly pale, the posterior lateral margins broadly 

 silvery pruinose; basal sternite blackened apically; second sternite and the 

 base of the third yellowish; segments four to eight pale brown, with a broad 

 dark median stripe which is almost hidden by a heavy silvery pollen that 

 covers the segments. Ovipositor with the dorsal shield shiny black, only 

 the apex paler; dorsal valves of the ovipositor straight, slender, greatly ex- 

 ceeding the short sternal valves. 



Habitat.— Japan. Holotypc, 9, Saitama, May 31, 1919, (R. 

 Takahashi). 



Tipula serricauda Alexander 



1914. Tipula serricauda Alexander, Can. Ent., xlvi, pp. 237, 238. 



The original description of the present species was based on 

 alcohohc females. A male Tipula is at hand which is evidently 

 this sex of serricauda and the specimen is herewith made the 

 allotype. 



Allotype.— d', Meguro, Tokio, Japan, May 10, 1919, (R. Taka- 

 hashi) . 



Male. — Length, 15.5 mm.; wing, 20.5 mm. 



Similar to the female sex, differing as follows : 



Antennae short, scarcely longer than in the female. Abdomen dark red- 

 dish brown, the terminal segments blackish. Male hypopygium with the 

 ninth tergite short, deeply impressed medially; ninth sternite with the caudal 

 margin trifid; eight sternite unarmed. 



Tipula serridens new species 



General coloration light gray, the praescutum with four darker gray stripes 

 which are margined with dark brown; antennal flagellum imicolorous; wings 

 subhyaline, banded with brown; ovipositor with the tergal valves powerful, 

 transverse, the outer margin .serrate, the sternal valves subatrophied. 



Female. — Length, about 21 mm.; wing, 17 mm. 



Frontal prolongation of the head light gray; nasus short and stout; i)alpi 

 dark brown. Antennae short, the first segment dark basally, the apex dull 

 yellow; second segment dull yellow; first flagellar segment pale brown at 

 the base, the remainder of the antennae dark brown. Head light ash-gray 

 with a very indistinct, delicate, brown median line on the vertex; vertical 

 tubercle low but evident. 



Mesonotal praescutum light ash-gray, with four darker gray stripes which 

 are margined with dark brown, the intermediate stripes narrowed behind 

 and becoming obsolete before the suture; lateral stripes broad and with the 

 brown margins very distinct; scutum light ash gray, the lobes with two darker 



