80 . , [March, 



? . Seventh sternite with a deep sinus ffiiij. 65). Apical iuars:iu 

 of eighth tergite entire. 



Fairly common in England and Scotland. Not recorded from 

 Ireland. The chief host seems to be the weasel (Mnsfela nivalis) ; it 

 also occurs on the long-tailed field mouse {Apodemv.s sylvaticus), on 

 the mole {Tcdfa europaea) , and some other small mammals. 



II. Suborder : Fracticipita. 



The anterior portion of the head overlapping the posterior dorsally. 

 All with genal and prothoracic combs, in the bat fleas {Ischnnpsyllua 

 and NycteridopsyUa) the former replaced by two flaps. 



C. Family : Leptopsyllidae. 



Abdomen without lateral combs, fifth tarsal segment with 4 lateral 

 pairs of bristles, and a fifth pair ventrally in between the first pair. 



X. Genus : DOEATOPSYLLA Jord. and Boths. (1912). 



Similar to Palaeops7jUa except the four-jointed labial palpi. 

 Genal comb subventral, the upper spine slightly longer than the 

 others (fig. 66). 



One species, which is purely Palaearctic. 



31. DoRATOPSYLLA DASYCNEMUS UotllS. (1897). 



(Figs. 66, 67). 



The four genal spines with obtuse apices. Entire outer surface 

 of hindtibia hairy. 



^ . Clasper divided into a very short obtuse upper process and 

 a much longer, nearly square, lower one. The upper process bears 

 three bristles, of which one is very stout. Finger slender, slightly 

 curved at the base. 



? . Seventh sternite (fig. 67) divided by a central sinus into two 

 more or less pointed lobes. Head of receptaculum seminis much 

 longer than the tail and not sharply separated from it. 



Common in England and Scotland. Unrecorded from Ireland. 

 The host is the common shrew {Sorex araneus). 



