1919] Alexander: Japanese Crane-Flies 341 



third at the origin of Rs extending from costa alrnost to M; the fifth, 

 largest, at the stigma; the last two at the ends of R\ and Ri respectively; 

 a narrow cloud in the anal angle of the wing; the seam along the super- 

 numerary cross vein sends a very black line along vein Cu to form an 

 inverted T; veins C and Sc yellow, the other veins brown. Venation: 

 Rs strongly arcuated at origin ; /?2+3 and M\+i nearly equal in length . 



Abdominal segments bicolorous, the basal half of each segment dull 

 reddish, the apical half blackish. Male hypopygium with the outer 

 pleural appendage stovit, on the outer face before the tip with one 

 conspicuous spine in addition to the apical, slightly curved, tooth. 



Habitat: Japan. 



Holotype, cf , Meguro, Tokio, April 20, 1919 (R. Takahashi). 

 Allotopotype, 9 , April 19, 1919. 



Paratopotype, cf, April 19, 1919; paratype, cf, Tokio, 

 May, 1919. 



Limnophila (Prionolabis) rufipennis sp. n. 



General coloration blackish, femora a little paler basally; wings 

 brownish yellow with sparse brown seams along the cord; cell 1st M2 

 subquadrate, basal deflection of Cui beyond the middle of its length. 



Male — Length about 14 mm.; wing, 16.4 mm., its greatest width, 

 5.5 mm. 



Description from an alcoholic specimen. 



Rostrum, palpi and antennae black. Head black, very possibly 

 grayish pruinose in dried specimens. 



Thorax black throughout in alcoholic material. Halteres long, 

 light yellow, the knobs a little darker. Legs with the coxse black; 

 trochanters dark brown; femora dark brown, only a little paler basally, 

 especially on the hind femora; tibias and tarsi dark brownish black. 

 Wings very broad and ample, deeply suffused with pale browniish yellow, 

 clearer yellow in the costal and subcostal cells; stigma oval, dusky 

 brown; very narrow dusky browTi seams along the cord, at the outer 

 end of cell 1st J/2, at the origin of Rs and at the fork of if 1+2. Venation 

 generally similar to L. (P.) rufibasis 0. S. (Northeastern North 

 America), but cell 1st Ah much shorter, subquadrate; R2+3 a little 

 longer than r-tn; basal deflection of Cui beyond mid-length of cell 

 1st Mo; petiole of cell Mi a little shorter than this cell. 



Abdomen dark brownish black. Male hypopygium with the ventral 

 pleural appendage irregularly pectinated, one tooth being considerably 

 larger than the others; dorsal pleura.1 appendage with the apex simple, 

 blackened. 



Habitat: Japan. 



Holotype, cT, Chichibu, Province Saitama, October, 1918, 

 (R. Takahashi). 



