SOME XEW CHINESE FLEAS. 



371 



Length (mounted specimens) 2'4 to 2-8 mm. 



Two males and four females from Omi-shan, Sze-cliuen, 6000 ft., 

 off Sciurotamias davidianus consohrinus M.-Edw., and from 23 

 miles S.E. of Ta-tsien-lu, 7500 ft., off the same host. 



Text- 

 fiff, 108. 



Text- 

 fig. 109. 



Text-fig. 108. — Abdominal segments VII & VIII, stylet and receptaculum seminis 



of Ceratophi/Uus crispus $ . 

 Text-fig. 109. — Abdominal segments VII & VIII and stjlet of Cerato;pliyUus 



dolahris ^ . 



3. Ceratophyllus dolabris, sp. n. (Text-figs. 109, 110.) 



(S $ . Nearly allied to C. lagomys Wagn. (1897), of which only 

 the S is known to us. The new species is distinguished from 

 that sex of lagomys by the shorter bristles of the eighth abdominal 

 sternite, the differently shaped non-movable process of the 

 clasper, the much narrower distal portion of the ninth sternite, the 

 broader lobes of the anal sternite, and some other details men- 

 tioned below. The most characteristic feature in both lagomys 

 and the new species is the development of the tenth abdominal 

 sternite of the c? . This sternite consists in fleas normally of a 



