2 CONCHASPIS. 



trum biarticulate." * Mr. Green f rightly considered 

 this to be too narrow to admit a congeneric insect 

 from Ceylon, and he suggested the following temporary 

 diagnosis : 



" Scale elevated, more or less circular ; adult female 

 retaining limbs and antennae, the latter of few joints ; 

 genital aperture without setiferous ring ; mentum bi- 

 articulate; terminal segments of body united into a piece 

 somewhat resembling the pygidium of the Diaspin&" 



In the Ceylonese C. socialis, Green, and also in C, 

 angr&d, Ckll., there is no true tibio-tarsal articulation, 

 but merely an indentation of the integument (PL 

 XXXV, fig. 8), and both species also possess three pairs 

 of ventral spiracles. In my original diagnosis of C. 

 rodriguezide I described the tibige as " grooved and about 

 as long again as the tarsi." But having now made 

 more careful preparations of the insects, I am con- 

 fident that there is no true tibio-tarsal articulation. 



The only male of this genus known is that of C. 

 socialis, which Mr. Green (1. c.) describes as " not 

 unlike the males of Planchonia. . . . Ocelli four, rather 

 small. Antennas with seven joints. . . . Wings long 

 and ample. Genital spike very long and slender. . . . 

 Tibio-tarsus long and slender, without any trace of 

 division." The male puparium he describes as " white, 

 oblong, flattened, closely felted, completely enveloping 

 the pupa. The hinder extremity has a valvular open- 

 ing. . . . The male puparia do not occur separately, 

 but are always collected together, in groups of ten or 

 more, beneath the parent scales, which they completely 

 fill." I have found no male puparia under the female 

 scales of C. angrseci ; neither, I believe, has Mr. 

 Cockerell, as he makes no reference to such in his 

 description of the puparium of G. Neivsteadi. The 

 larva of G. angrseci closely resembles the adult female, 

 but differs in possessing six joints to the antennas. 



* " Notes on* New or Little-known Coccidse," ' Ent. Mo. Mag./ s.s., vol. iv, 

 July, 1893, p. 153. 



f ' Coccidse of Ceylon/ p. 14. 



