ZOOLOGY. 22S 



In their various stages these insects are found on sweet 

 substances, decaying fruit, and MOod ; the larva and pupa 

 are six-footed, and very active. 



2. Podura. Antennce setaceous, elongated, in some three, 



and others four jointed: pa^p? sub-clavate ; Jorfy scaly, 

 eyestyio, each composed of four/«ce^5 or lenses ; tail 

 forked, bent under the body, by means of which the 

 animals leap ; legs six, formed for running. 



This genera, consists of small insects, their haunts are 

 usually in damp places, under stones, in the crevices of the 

 bark of trees, and such like places ; they are very active, 

 and feed on the leaves of plants, the larvse and pupa, are six- 

 footed, active, and resemble the perfect insects. 



3. PcdicuUs. Louse. Antennce as long as the thorax ; 



moitth furnished with a retractile recurved ^eercer ; ab' 

 domen depressed ; legs six, formed for walking. 



This is a very extensive genus, of very remarkable forms, 

 but having no claims to elegance or beauty ; they live by 

 extracting animal juices ; the larvai and pupa are six-footed, 

 active, and nearly resemble the perfect insect. 



4. Pulex. Plea. Antennae moniliform, declining ; month 



with an inflected, cylindrical, setaceous .y/7o?<^, including 

 a. piercer ; eyes two; abdomen compressed; legs six, 

 formed for leaping. 



The eg2;s of this genus are of a white colour, and arp ge- 



