366 Dactylopiince. 



until it assumes the form shown in figs. 5 and 6 ; lateral margins slightly 

 recurved. Abdominal segments with a median dorsal series of stout white 

 waxy processes, directed backwards ; posterior margin with seven longer and 

 stouter processes, also directed backwards. Antenna (fig. 9) with seven joints, 

 the division between the third and fourth often indistinct ; seventh much the 

 longest. Limbs {fig. 10) stout ; tarsus slightly shorter than tibia ; digitules very 

 fine and delicate, often missing, tarsals with a minute apical knob, unguals 

 weakly dilated at extremity. Derm with groups of stout pointed spines on 

 positions corresponding with the waxy processes displayed by the living insect, 

 viz., a dorsal series of small groups on the last six or seven segments of the 

 abdomen, and large groups on the marginal areas of the posterior segments. 

 These groups become larger and more crowded as they approach the posterior 

 extremity until — on the last two segments — they become almost confluent 

 {fig. 8). There are numerous small circular ceriferous pores on the dorsum, 

 and some larger pores on the venter. Anal ring large and conspicuous, bearing 

 six very long whip-like setae, and outlined by a double chain of cells. Caudal 

 setae about one-third the length of those of the anal ring. Length of insect 

 2'o to 275 mm. 



On the upper surface of the leaves (and occasionally on the slender branches) 

 of Eiigenia oligaiitha ; also on a species of Calophylluin. Nuera Eliya. The 

 puparia are almost invariably situated at the base of the leaf, in the groove 

 above the midrib. 



I have been unable to obtain the male of this species, or to recognise the 

 male puparia. 



ERIOIDES RIMUL^, nov. 

 (Plate CXLVL) 



Adult female enclosed in a stout, closely felted sac, which is whitish 

 externally, but bufif-coloured internally. The sac is open at the hinder 

 extremity, revealing the terminal segments of the insect, from which project 

 two longish curling flattened white filaments {figs. 9, 10). In its earlier 

 stage of construction the sac is often vase-shaped and disposed in an erect 

 position, the anterior parts sunk in a crevice of the bark {fig. 9). Later, it 

 usually assumes a procumbent position and is of a more irregular form {fig. 10). 

 Length of fully developed sac about 27"5 mm. 



Adult female at first yellow {fig. 6), becoming dull purplish later. Form 

 oval, tapering somewhat behind and (in life) constricted at the anterior 

 extremity. Cephalo-thorax and base of abdomen naked ; terminal five or six 

 segments of abdomen covered dorsally with white mealy secretion and (in 

 older examples) with stout marginal waxy processes directed backwards. Derm 

 with numerous minute pores ; the dorsum of the terminal segments almost 

 completely covered with large chitinous plates crowded with stout spines 

 {fig. 11). On the anal segment these spines are longer, and taper evenly to a 

 sharp point ; the spines on the preceding segments are of the peculiar shape 

 shown Vilfig. 12, sharply constricted at the base, above which they are broadly 

 napiform. There is a moderately long, stout, caudal seta on each side of the anal 



