May, '09] ENTOMOLOGICAL NEWS. 195 



A new species of Dolichopsyllus a genus of the 



Siphonaptera. 



By Passed Assistant Surgeon CARROL Fox, P.H. and M.H.S., 



San Francisco, Cal. 



Dolichopsyllus bluei spec. nov. 



Three female specimens collected in November, 1908, from 

 the weasel Putorius xanthogenys. No male specimens were 

 obtained. Mr. Rothschild has kindly looked at this flea and 

 pronounced it probably a new species of the genus Dolichop- 

 syllus. 



Female. Head evenly and abruptly rounded. Frontal notch distinct. 

 Gena ending posteriorly in an obtuse point. Maxilla triangular. Eye 

 absent. Maxillary palpi reach to about middle of anterior coxa ; length 

 of joints, 9, 9, 6, 7^- Labial palpi reach almost to apex of anterior coxa. 

 Five jointed, including undivided basal portion. Lower genal row con- 

 sists of five bristles, the outermost one the longest and the second the 

 smallest. Five bristles in the upper genal row. About eighteen bristles 

 on hind margin of head, of which the two at the lower posterior angle 

 are the largest. One small bristle on the occiput back of the middle of 

 the antennal groove. Numerous fine hairs along the posterior margin of 

 the antennal groove. Antennal groove extends to one-third of top of 

 head. It is narrow, with somewhat thickened edges. A few fine hairs 

 on first joint of antenna, while on the second joint there are about eight 

 hairs longer than the third joint. Just in front of the insertion of the 

 maxillary palpus there are two bristles. The pronotum contains a row 

 of about fourteen bristles, the lowest of which is much the largest and 

 posteriorly a ctenidium of about twenty or twenty-two spines. The 

 mesonotum has three rows of bristles, an anterior of about twenty-four, a 

 posterior of about sixteen small, with a middle row of about sixteen large 

 bristles. The metanotum contains a posterior row of about sixteen large 

 bristles and an anterior row of about twenty smaller ones. The pleura 

 of the mesothorax contains numerous stout bristles. The episternum of 

 the metathorax contains three large and two small bristles, the sternum 

 three bristles, and the epimerum about sixteen or eighteen, more or less 

 regularly disposed in three rows. The abdominal tergites have each two 

 rows of bristles, the first tergite about sixteen in the posterior row and 

 about the same number in the anterior row. The other tergites have in 

 the posterior row about twenty-four large and in the/ anterior row about 

 twenty smaller bristles. There is a small tooth on each side of the meta- 

 thorax and the first and second abdominal tergites. There are three 

 antipygidial bristles on each side. The sternites from the third to seventh 

 have two rows of bristles, a posterior of about sixteen large and an ante- 

 rior of from eight to ten smaller. On the second sternite there are ven- 



