250 



NOVITATES ZOOLOGICAE XXI. 1914. 



7. Craneopsylla pallas spec. uov. (text-tig. 13). 



?. Allied to C. wolfsohui Roths. (1900), bnt at once distinguished by the 

 helmet. 



The lougitudiual diameter of the thin frontal portion of the helmet (text-fig. 13) 

 from the comb forward is only very slightly longer than the longest spine of the 

 comb in C. wolffsohni, while it is twice as long as that spine in C. pallas, the helmet 

 of pallas resembling in shape that of G. mars. The occipnt and gena are longer 

 than in C. woljfsohni, and the genal comb contains six spines instead of five. 



The pronotnm bears a comb of twenty-four or twenty-five spines, and two rows 

 of bristles, besides one or two additional bristles on each side in front of the 

 rows. Tlie metepimernm has seven or eight bristles in tivo rows (4 or 5, 3). The 



Fig. is. — Grancojisylla jiallas. 



seventh abdominal sternite bears about eighteen to twenty bristles on each side, two 

 of which are very long. The eighth tergite bears one or two fairly long bristles 

 above the stigma, which is not the case in C. wolffsohni, and from thirty to thirty- 

 six from the stigma downwards. The bristles situated at the apex of the eighth 

 tergite are more numerous than in ('. tvolff'sohni, and the stylet is slenderer. 



2 ? ? from Pachacayo, Peru, 12,000 ft., March 27, 1913, off a rat. 



This species shares a number of characteristics with C. woljfsohni and achilles 

 which are not found in the other species of Craneopsi/lla, as tabulated in thfi 

 following key : 



KEY TO THE GENUS CRAJ^EOPSYLLA. 



A. The two long bristles situated on the gena are both placed near the suture 

 separating the gena from the helmet, the lower bristle being slightly more frontal 

 than the upper one (cf. text-fig. 13). The pygidium is convex behind in the ?. 

 The tenth tergite is distinctly separated from the ninth, the line of separation being 



