Vol. XLV. LONDON, Jl I. V, 1U1:5 No. 7 



Ri:in)RT ON A COLLECTION OF .l.AI'.\Ni:Sl-: CRANi: ■ 



FLIES (TIPULID.E), WITH A KEY TO THE 



SPECIES OF PTYCTiOPTERA. 



BY cn.\ki.i:s p. .\i.i;.\aM)i;k, itii.\( a, n.v.* 



An extensive collection of Japanese crane-Hies, taken by Dr. 

 S. I. Kuwana and assistant entomologists in the vicinity of Nisliiga- 

 liara, Tokio, Ja[)an. during the season of 1912, was forwarded to me 

 for examination. The material, alcoholic, is contained in 62 vials, 

 \ery carefully prepared and with complete data. I express my 

 sincere thanks to Dr. Kuwana and his assistants for tliis fine rep- 

 resentation of Ja|)anese Tipuliiki' and Pt\cl".(-plcrida'. 



Family Ptycho pier idee 

 Genus Ptychoptera Meigen. 



Key to the species of Ptychoptera. 



1 . Wings with a distinct brown cross-band along the cord 2 



Wings lualinc or subhyalinf- without a distinct brown cross- 

 band along the cord . 



2. Radial sector more than twice as long as the radio-median 



cross-\ein. (Europe) contaminata L. 



Radial sector rarely longer than the radio-median cross-\ein. . . '.^ 



3. Posterior metatarsus conspicuously wliite. 



(Europe) albiniaiia Fabr. 



Posterior metatarsus not while. 



4. Pleune reddish yellow; a short brown cross-band near the mid- 



dle of the radial cell. (East. I'.S.) rufocincta O.S. 



Pleura; black; n(j brown cross-band near the middle of the 

 radial cell 5 



5. .All coxa> yellow or refldish-\(!i<)w; scape of antcnn.r l)rownish- 



yellow or yellow G 



* Contribution from the Entomological Laboratory of Cornell l'ni\crsity. 



