﻿417. 



CERATOPHYLLUS ELONGATUS. 



Yellow Bat's Flea. 



Order Siplionapteraia^. — AphampteraKirbi/. — SuctoriaZ,«^. 

 Aptera Linn., Lam., Leach. 



Type of the Genus, Pulex Hirundinis Sam. 



Ceuatophyllus Curtis. — Pulex of Authors. 



Antenna inserted on each side the crown of the head, concealed 

 in a cavity behind the eyes when at rest, as long as the head, 

 slightly attenuated, 4-jointed, basal joint conic- truncate furnished 

 with a few long bristles at the apex, 2nd longer, 3rd subglobose, 

 4th small subovate (A. I). 

 Labrum none. 



Mandibles long slender, compressed and transparent (E. d). 

 Tongue as long as the mandibles, slender, linear and transpa- 

 rent (c). 



MaxillcE (D. e) lateral, coriaceous, slightly acuminated at the 

 apex and shorter than the Palpi which are attached to the base ; 

 they are long rather robust and 4-jointed, 2nd and 4th joints a 

 little the longest, 3rd and 4th slightly pilose, the latter ovate at 

 the apex (f). 



Labium ? somewhat cup-shaped, from the apex of which arise 

 the Palpi which are as long as the mandibles, slender, producing 

 a few hairs and 4-jointed, 2nd joint small, 3rd the longest, 4th 

 furnished with a few bristles at the apex (k). 

 Head small, compressed and rounded, sometimes ciliated with strong 

 bristles. Eyes small lateral (A). Thorax composed of several seg- 

 ments. Abdomen elongated in the female, subclavate, compressed 

 formed of several rings divided laterally. Legs, anterior short, pos- 

 terior the longest, formed for leaping. Coxae very large. Thighs 

 short subovate compressed. Tibiae rather short and pilose. Tarsi 

 longer than the tibice, pilose and 5 -jointed, basal joint the longest. 

 Claws slender and acute, incurved at the base, (8 $, hind tibia and 

 tarsus) . 



Elongatus Curtis's Guide, Gen. 1136. 11. 



Ochreous, variegated with ferruginous, shining, elongated and 

 attenuated towards the head which is not ciliated : antennae 

 subclavate, pilose 8-jointed, 1st and 2nd joints large, the former 

 obovate, the latter subquadrate, 3rd narrower, the remainder 

 forming an ovate club composed of 4 rings and an apical joint (lb), 

 eyes undiscovered : maxillae black ; segments of the thorax and 

 abdomen ciliated with short rigid black bristles ; the abdomen 

 very much dilated at the apex. Legs pale ochreous j tibiae and 

 tarsi sparingly clothed with long dark hairs ; claws black. 

 In the Author's Cabinet. 



