1915,] 85 



4. A large species, finger widest at apex (fig. 83) elongatus 



A small species, finger almost crescent -shaped (fig S9) ...simplex 



5. Manubrium very broad, finger broad at apex (fig. 85)... 



intermedius 



Manubrium slender, finger with posterior and apical margins 



one continuous arc (fig. 'S7) octactemis 



6. Females. Seventh sternite with about 20 bristles (fig. 84) . . . 



dongattis 



Seventh sternite with a single row of bristles (fig. 86) 7 



7. Size large. Eighth tergite with two bristles below stigma. 



Bursa copulatrix little longer than broad 



intermedius 



Size small. Eighth tergite with four bristles below stigma. 

 Bursa copulatrix long, shaped like a sausage (fig. 88)... 



simplex and octactenus 



39. ISCHNOPSYLLUS ELONGATUS Cuvtis (1832). 



(Pigs. 83, 84). 



The largest species with eight combs. Comb on first abdominal 

 segment (third comb) as large as the one on the nietanotum (second 

 comb) . 



(J . Eighth sternite (fig. 83) proximally with two ventral bristles 

 and distally with a ventral row of about eight, of which the second, 

 third, and fourth are widened in the middle. At apex a very short bristle 

 pointing downwards. Clasper with two very long bristles of equal 

 length, the bristles being longer than the finger. Apical margin of 

 finger incurved, both the anterior and posterior angles being pointed. 



$ . Seventh sternite on each side with about 20 bristles (fig. 84) . 

 Stylet very slender, four times as long as it is broad at the base. 



Apparently confined to the noctule bat (Nyctalus noctula) . It is 

 common in England, but unrecorded from Scotland and Ireland. 



40. IsCHNOPSYLLUS INTERMEDIUS BntllS. (1898). 



(Figs. 85, 86). 



Nearly as large as elongatus, with eight combs. Comb ou first 

 abdominal segment (third comb) not as large as the one on the 

 metanotum (second comb). 



