SO.MK XliW OHIXICSE KJ,KA.s. liK") 



LsgS.— Tlie liiud feaiuf bears ou the outside one subapical ventral 

 bristle a,ncl one lateral subbasal one, and on the inside a row of 5 or 

 6 bristles. The hind tibia has a single lateral row of 7 or 8 bristles 

 on the outside and a row of 3 or 4 on the inside. The tarsi are 

 slender. The second hind-tarsal segment bears an apical bristle 

 which reaches beyond the apex of the fourth segment and another 

 which extends beyond the apex of tlie third. The fifth segment 

 bears in all the tarsi five pairs of lateral bristles. The measure- 

 ments of the tarsi are : — 



Mid tarsus : 29, 25, 15, 11, 24. 

 Hind tarsus: 58, 38, 23, 13, 27. 



Modified segments. — 5 • The seventh sternite (text-tig. 11 7, VII. 

 st.) bears a deep sinus and is strengthened proximallyto the sinus 

 by a curved band-like incrassation. The eighth tergite has thi-ee 

 bristles below the stigma, arranged in a triangle. The bristles on 

 the lower half of the segment are few in number. The apical 

 margin is rounded and, above the marginal bristles, slightly 

 incurved. The ninth sternite (IX.. st.) bears a few minute hairs. 

 The stylet is short and bottle-shaped, being twice as long as it is 

 broad near the base. Its apical bristle is a little smaller than the 

 most ventral one of the seventh tergite. The receptacle stands on 

 end in our only specimen, and for that reason its shape cannot well 

 be made out. The head appears to be round, and much shorter 

 than the tail. 



Length (of mounted and extended specimen) 3*2 mm. 

 One female from 23 miles S.E. of Ta-tsien-lu, 7500 ft., oft" 

 Sc'mrotamias davkliaiius consohrinus M.-Edw, 



10. Amphipsylla casis, sp. n. (Text-figs, 118, 119.) 



c? ? . The nearest ally of this species is A. dcea Dampf (1910) 

 from Turkestan. The detailed description which A. Dampf gave 

 applies almost verbally to the present flea, except for the points 

 mentioned below, and the beautiful figures published by that 

 author of the head of the S of dcea and the last segments of the 

 5 agree also equally well with the new species. As in some other 

 instances mentioned in this paper, we suspect that we are dealing 

 with a Chinese (or East-Asiatic) representative of dcea. 



Both sexes have, on the whole, less bristles than A. dcea. The 

 sternum of the metathor-ax bears only one long bristle, which is 

 occasionally accompanied by a minute hair. The stigmata of the 

 abdomen are situated between the second and third bristle of the 

 posterior row, not above the third, on the seventh segment some- 

 times below the second bristle. 



The epimerum of the metathorax bears 7 bristles only (2, 3, 2). 



The anterior row of bristles on the first abdominal tergite con- 

 tains on the two sides together about 8 bristles, and the posterior' 

 row 10, the numbers of bristles in the posterior rows on the other 

 tergites being (also on the two sides together) 18. 17, 16, 16, 

 17, 16. 



