1915.] 59 



VII. Genus: CEEATOPHYLLUS Curtis (1832). 



Frons with tubercle (fig. 13). Autemial grove continued to the 

 prost^rnum. No genal comb. Hinclcoxa without patch of spines on 

 inner side. Fifth hindtarsal segment with five lateral pairs of bristles. 



The species of this genus are exceedingly numerous, particularly 

 in the tempeiate zones of both the Eastern and Western Hemispheres. 



1. Prothoracic comb of 24 or more spines. ^ird-Ceratophylli 2 



Prothoracic comb with less than 24 spines. Mammal- 



Ceratophylli 24 



2. Males 3 



Females 14 



8. Occiput with three complete rows of bristles (fig. lS)...gaUinulae 

 First and second row of bristles of occiput represented at 

 the most by two bristles ; . . 4 



4. Basal abdominal sternite with several bristles on the lateral 



surface styx 



Basal abdominal sternite with one or no lateral bristles 5 



5. The bristles at the apex of the eighth sternite stout and 



black, spiniform, not or but little longer than this 



sternite is broad (fig. 29, 33) 6 



These bristles much slenderer and longer 7 



6. Finger distinctly narrowed at apex ; parameres slightly 



curved (fig. 29) columhae 



Finger not narrowed at apex : parameres sickle-shaped and 

 strongly curved (fig. 33) horealis 



7. Finger with two stout spines or bristles placed close together 8 



None of the bristles of the finger prominently thick and 

 brown and always placed apart 9 



8. Finger widest at the apex, bearing two short blunt spines at 



apex (fig. 17) rothschildi 



Finger widest in the centre bearing two stout brown bristles 

 at the widest point (fig. 19) /; irundinis 



9. Eighth sternite on each side with one long apical bristle 



(fig. 37) .fringillae 



Eighth sternite with four or more apical bristles on the 

 two sides together 10 



