Dactylopiince. 393 



Adult male very pale yellow ; ocelli black ; posterior extremity with a pair 

 of long, slender cottony filaments. 



On leaves oi Jastninum sp. (Haputale and Wellwaya), and on foliage of the 

 tea plant (Haldummulla). The insects are crowded on the under surface of the 

 leaves, but are disposed in such a manner that the delicate waxy fringe has 

 sufficient room for development (seeyf^. i). 



The species is probably indigenous on wild Jasmine and has adopted the tea 

 plant more recently. Only one instance of its occurrence on tea has been 

 recorded ; but, in that case, two or three tea bushes on the edge of the jungle 

 were very heavily infested. Examples from tea were much redder than those 

 taken on Jasmine. 



Recorded also from Southern India, onjasjfttnum sp. 



PHENACOCCUS MANGIFER^, Green. 

 (Plate CLXIV. 1-16.), 



Pseudococcus mangifera, Green, Ind. Mus. Notes, Vol. IV. p. 6 (i{ 



Adult female at first narrow oval {Jig. 8) later broadly oval {figs. 5, 6) ; 

 dorsum depressed. Pale honey-yellow : dorsum almost completely covered by 

 thick white meal, except for a bare space in the middle {fig. 5) which, in the 

 early adult, is frequently of a definite triangular shape {fig. 8). Margin with a 

 complete fringe of stout cottony tassels, of which those at the posterior 

 extremity are usually longer. In the early adult, the marginal tassels are 

 longer and more slender and tend to become separated into packets of two or 

 three. There is little or no secretion on the venter {fig. 6). Antenna {fig. 11) 

 nine-jointed ; first joint short and stout, remaining joints long and slender, 

 approximately equal in length, the third and ninth slightly longer. Eyes pro- 

 minent {fig. 13). Limbs slender ( fig. 12) ; tarsus less than half length of tibia ; 

 tibia slightly shorter than femur and trochanter ; tarsal digitules slender, 

 simple ; ungual digitules slightly dilated. Claw {fig. 16) slender and sharply 

 pointed, without (or with the merest trace of) a denticle on its inner edge. 

 Anterior and posterior glandular fovere present but not conspicuous. Margin 

 of body with a complete series of thirty clusters of truncate spines set on 

 definite circumscribed patches (see _/jVj'. id, 13, 14) which are slightly denser 

 than the rest of the derm. There are numerous small ceriferous pores which 

 are more crowded and conspicuous on the marginal patches. Anal ring {fig. 14) 

 with six stout setae. Caudal setae moderately long. Length 1-5 to 2*25 mm. 



Nymph {fig. 7) with a radiating fringe of tufts of long glassy filaments 

 lightly matted together with loose cottony secretion. 



Adult male {fig. i) very pale yellow ; eyes and ocelli black ; wings hyaline. 

 Caudal filaments exceeding the length of the body. Upper pair of ocelli 

 widely separated ; lower pair close together {fig. 2). Rudimentary eyes lateral 

 close to base of antennas. Length rather less than i mm. 



Male puparium {fig. 9) irregularly cylindrical, white ; sometimes with a few 

 irregular lateral processes. Length V2^ mm. 



3F 



