1915.] (J7 



13. Ceratophyllus farreni Boths. (1905). 

 (Figs. 23, 24, 25). 



Similar to Jiirundinis, but the modified abdominal segments very 

 different. Pronotal comb as long as the pronotum measured in the 

 centre of the side. Metanotum without spines at the apex, the apical 

 area much reduced in width, but rather more chitinised than in 

 hirundinis. Upper and lower antepygidial bristles minute in (^ , the 

 upper slightly longer than the lower in 9 , and less than one-fourth the 

 length of the central one. Sensory plate of ninth tergite shorter than 

 third hindtarsal segment. 



r? . Poststigmatical portion of eighth tergite almost evenly rounded, 

 with about 10 to 14 bristles at and near the margin and 3 or 4 on the 

 side; the rough area of the inner surface narrow (fig. 23). Eighth 

 sternite more curved than in Jiirundinis, pointed, with a long brush of 

 apical bristles ; widened proximal jjortion less produced upwards than 

 in hirundinis, and anteriorly rounded-truncate. Process of clasper 

 almost conical. The finger (F) broadest in the centre, its posterior 

 margin being evenly curved and bearing two long bristles in the centre 

 and a small one at the apex. End-piece of paramere (Par) long, 

 slightly curved and gradually narrowed. Dorsal internal portion of 

 niuth tergite forms with the manubrium an obtuse angle which is 

 completely rounded off. 



? . Seventh sternite recalling that of gallinulae, being very deeply 

 sinuate (fig. 25) ; the upper lobe broad, the lower one narrow. Post- 

 stigmatical portion of eighth tergite with 6 or 7 bristles below the 

 stigma and about 20 on the ventral half. Stylet twice as long as it 

 is broad. Receptaculum seminis similar to that of hirundinis. 



The British race is C. farreni farreni ; in A^eria the local race 

 C. farreni meridionalis Jord, and Eoths. (1912) is found. 



A fairly common species in the nests of the house martin (Chelidon 

 urbica). Not recorded from Ireland. 



14. Ceratophyllus garei Boths. (1902). 

 (Figs. 26, 27, 28). 



Frons with two rows of bristles, occiput with one bristle behind 

 base of antennal groove and two above centre of groove. Pronotal 

 comb about one-ninth longer than the pronotum measured in the 



