SOME NEW CHINESE FLEAS. o87 



in the (5, tlieir number coming within the limits of variation of 

 dce.a as given by Danipf. 



The receptacnlum seminis differs from Dampf's figui"e of that 

 organ of A. dcea in having a distinctly shorter tail. 



One male and two females from Yu-lin-f u, Shensi, 4000 ft., taken 

 off* Myospalax fontanieri. 



11. ISTeopsylla ooMPAR, sp. n. (Text-fig. 120.) 



2 . Yery similar to X.hidevtafAfoo'mis Wagn. (1893), from which 

 it differs chiefly in the following points : — Tne pronotum bears a 

 row of 8 small bristles in front of the postmedial row of bristles 

 on the two sides together. The seventh abdominal sternite is a 

 little more deeply sinuate (lateral aspect) and its bristles are rather 

 stronger. The hind coxa., which bears in hidentatiformis a large 

 number of slender hairs on the inner side along the anterior edge, 

 has a patch of sliort spines besides many hairs. The dorsal 

 bristles of the hind tibia, are thinner in compar than in hidentati- 

 formAs, and the hind tibia bears on the outer surface two I'ows of 

 only 9 instead of 11 bristles, the rows, moreover, being separated 

 from the ventral bristles by a wide interspace without bristles, 



Text-fiff. 120. 



Abdominal segments VII & VIII and receptacnlum seminis of 

 Neopsi/Ua compar $ . 



Avhile in hldeiitatiforinis the interspace bears several additional 

 bristles. The bristles at the hinder side of the first segment of 

 the mid and hind tarsi are thicker than the proximal bristles of 

 the anterior edge of the segment in Wagnei''s species, there being 

 three such bristles m the mid tarsus and five in the hind tarsus, 

 apart from the apical bristle. In the new sjiecies the bi'istles of 

 these tarsal segments are piactically the same on the two sides. 

 Moreover, there are 10 or 11 bristles on the outer surface of the 

 first hind-tarsal segment of hidentatiformis and only 8 or 9 in 

 comjKtr. The second mid-tarsal segment is a little shorter in compar, 

 the measurements of the first and second segments being in 

 compar 28 and 19, and in Jndentatiformis 28 and 23. The eighth 

 tergite has in com2}ar on the outer surface a marginal row of 6 or 



