Mr. H. Denny on Six new species of Parasites. 315 



posteriorlbus et linea central! castaneis ; pedibus longis, crassis ; 



unguibus nigris. — Long. 1 lin. PI. XVII. fig 5. 



Hab. Pteropus eduJis, East Indies. 



Dull ocliraceous, shining and pubescent. Head flat, transverse, 

 as wide as the thorax. Eyes very large, ash-gray. Thorax trans- 

 verse, with a line in the centre, and the posterior portion chest- 

 nut ; the base with foui- large punctures and a series of bristles. 

 Scutellum prominent and semicircular. Wings very small, ru- 

 dimentary, apparently with only three simple costse ? Abdomen 

 subovate, somewhat pedunculate, flat and coriaceous, with faint 

 indications of Ave segments ? Legs long, thick, pale ochraceous; 

 the apex of the femora with a fuscous spot ; posterior pan- slightly 

 notched near the extremity. Claws divaricate, black, finely ser- 

 rated beneath. PulvilU membranous, ciliated, with a feathered 

 bristle beneath. 



I much regret not being able to give more details in illustra- 

 tion of the anatomy of this curious Parasite, Avhich I have been 

 precluded from doing, not only from the small size and mutilated 

 state of the specimen, but from its being the only one in mv pos- 

 session : of the structm-e of its antennae and halteres I know 

 nothing, these organs ha\-ing been destroyed ? and from the very 

 rudimentary and obscure natm-e of the wings, I cannot be positive 

 that my figure is correct. I obtained my example from beneath 

 the wing of Pteropus edulis (Black Roussette), commonly called, 

 though inaccui-ately, the Vampii-e. 



Order APHANIPTERA. 

 Family PuLiciDiE. 

 Genus Pulex. 

 6. Pulex Echidnce (Lewis). Castaneus, splendens ; margine singu- 

 lorum segmentorum totius corporis superiori cum setis nigris pec- 

 tinato ; pedibus crassis, aureo-flavis, interne castaneis, cum tarsis 

 castaneis. — Long. 2 lin. PI. XVII. fig. 6. 

 Hab. Echidna Hystrix, Van Diemen's Land. 



Bright chestnut, shining and shagreened. Head nutant. Eyes 

 prominent, silvery white. Antennae distinct ; capitate, consisting 

 of four joints; the first somewhat cup-shaped, produced on one 

 side; secondvery small, subglobular; third short, subconical; fourth 

 very large, oval, pale yellow, marked with transverse strise ; situated 

 in the temporal sinus. Thorax long, conical, apparently ? consist- 

 ing of five segments*. The fiirst three, composing the prothorax, 



* I have used this expression in consequence of authors differing as to 

 the uumhev of segments in the thorax of Pulex. Mr. Curtis says, under the 

 genus CeratophyUus, " Thorax composed of several segments ;'" Mr. West- 

 wood, "Thorax composed of three short segments," vol. ii. p. 191. 



