THE ENTOMOLOGIST 



Vol. XXXVIL] JANUARY, 1904. [No. 488. 



NEW SPECIES OF SIPHONAPTERA FROM EGYPT. 



By the Hon. N. C. Eothschild, M.A., F.L.S. 



(Plates I. & II.). 



The four new species described in the present article were 

 collected by the Hon. Francis R. Henley and myself on our joint 

 expedition to the Natron Valley.* 



1. PuLEX MYCERiNi, H. sp. (Plate I., figs. 1, 3, 4.) 

 The head is similar in shape to that of P. cheopis, aud bears on 

 its hinder portion a row of short hairs along the antennal groove. 

 Above this row, situated in the middle, there is one long bristle. The 

 row of bristles standing before the apical edge of the head is iucom- 

 plete, the lowest bristle, which is very long, being separated from the 

 one above it by a large interspace. Between this long bristle and the 

 row of short hairs there is one short bristle. The mesothoracic epi- 

 merum bears three bristles, one below the middle near the suture 

 which separates the epimerum from the episternum, the second near 

 the upper hinder corner, and the third close to the stigma. The meta- 

 thoracic epimerum bears one bristle beneath the stigma, and in addi- 

 tion a proximal row of three or four, and an apical row of three bristles. 

 The three thoracical tergites and the second to seventh abdominal ones 

 bear each a single row of bristles, while the first abdominal tergite 

 bears a few hairs in the middle, as is the case in the allied species. In 

 the male the first abdominal sternite bears one hair on each side, the 

 second to the sixth two, aud the seventh two or three. In the female 

 the first abdominal sternite bears one hair on each side, the second to 

 sixth three, and the seventh four. The hiud coxa bears two bristles 

 at the hinder edge near the apex. The hind femur is not angulate 

 beneath ; it bears on the inner side a row of from five to seven bristles, 

 and on the outer side ventrally near the apex two bristles. In one of 



■•■ For further reference to this Expedition, and the hosts from which 

 these specimens were collected, cf, Nov. Zool. vol. x. pp. 279-285 (1903). 

 ENTOM. — JANUARY, 1904. B 



