Fiorinia. 93 



FIORINIA, Targ. Tozz. 



In this genus the adult female is smaller than, and is completely enclosed 

 in, the second pellicle, which is proportionately large. The female at the second 

 moult shrinks in size, and thus becomes detached from the skin of the previous 

 stage. The eggs or young larvae are deposited within this receptacle. The 

 female puparium, consisting principally of this enlarged second pellicle, with 

 sometimes a slight secretional margin, is elongate, with the first pellicle pro- 

 jecting beyond the anterior margin. It bears the same relation to Chionaspis or 

 Diaspis that Aonidia does to Aspidiotus. The male puparium is elongate, 

 opaque white, with or without carinae, the pellicle placed at the anterior 

 extremity. The scales are usually exposed, but in one Ceylon species {scrobi- 

 culariun) they are concealed within the scrobicul^e (glandular pits) of the leaf, 

 while in another species {sccretd) the female puparia are enclosed in small galls. 

 The pygidium of the adult female usually bears well-developed median lobes, 

 with sometimes two smaller ones on each side. There are normally five groups 

 of circumgenital glands, of which the median and upper lateral groups some- 

 times coalesce to form an arch, but in the gall-making species the grouped 

 glands are entirely absent. 



I find five species of Fiorinia in Ceylon. Of these, the first three {fiorinice, 

 saprosince, and sij/iilis) are very closely allied, so much so as to be superficially 

 almost unseparable ; but the minute structural details of the adult female yield 

 good specific characters. The structure of the rudimentary antenniE will be 

 found useful for the purpose of synopsis. 



Synopsis of Ceylon Species of Fiorinia. 



A. Female puparium exposed 



(tj) Antennze of female with a long conical spike fiorinice. 



{b) Antennae of female without conical spike. 



(i) Antennae close together, with a median tricuspid 



tubercle saprosmcc. 



(2) Antenna; widely separate, without median 



tubercle similis. 



B, Female puparium concealed 



{a) In glandular pits (scrobiculae) scrobicularum 



{b) In small rounded galls on surface of leaf secreta. 



