CHAPTER VI. 



CATALOGUE OF INSECTS AND DIAGNOSIS 

 OP SPECIES. 



Family. COCCIDDJ3. 



MALE and female larvae similar,, apterous, naked or covered., 

 active. 



Females in all stages apterous ; metamorphosis semi-complete ; 

 naked or covered ; active or stationary ; rostrum usually present 

 in all stages, sometimes absent in adult ; feet sometimes absent 

 after larval stage ; tarsi where present monomerous ; feet, where 

 present, ending in a single claw ; eyes sometimes absent. 



Male pupae apterous ; naked or covered. Adult males with 

 two wings and two halteres ; metamorphosis complete ; rostrum 

 present in larva and pupa, always absent in adult ; tarsi mono- 

 merous ; feet ending in a single claw ; abdomen terminating in 

 a spike which forms the sheath of the penis ; eyes present in 

 adult ; ocelli often large, sometimes exceeding three in number. 



The above characters sufficiently distinguish this family from 

 the rest of the Homoptera. Probably the first marks for identi- 

 fication of a specimen might be the monomerous tarsus and the 

 single claw. The latter is always to be made out, at least in the 

 earlier stages of the female and in the adult male. 



GEOUPS. 



Larvae active, naked ; adult females and 

 pupae stationary, covered with separate shields 

 or puparia, composed partly of secretion, partly 

 of the earlier discarded pellicles; females apo- 

 dous after larval stage ; abdomen of females 

 not exhibiting a median cleft or dorsal lobes 



