392 DactylopiincE. 



denser agglomerations ot mealy secretion. Derm with numerous minute 

 ceriferous pores, more crowded towards the margins. Anal ring with six stout 

 sets. Caudal setae slightly longer than those of the anal ring. Surrounding 

 the anal orifice is an irregular ring of longish slender hairs, and other similar 

 hairs occur on the cephalic area, especially between the antennas. Smaller hairs 

 are scattered over the surface of the derm. The usual glandular foveae, on the 

 cephalic and post-abdominal areas, are present though not very conspicuous. 

 There is, on the venter of the second abdominal segment, a large transversely 

 disposed cicatrice {fig. 9), the outline of which is sharply defined in well-stained 

 preparations. In some examples the area of the cicatrice is occupied by opaque 

 matter which renders the organ very conspicuous ; but in unstained or weakly 

 stained preparations it can be seen only with difficulty and may be easily over- 

 looked. Length 3 to 4 mm. 



Eggs and young larvte honey-yellow. 



On Tephrosia Candida (Badulla), Odina woodier., CalUcarpa lanata^ 

 Murraya koenigii, and Wendlandia notoniana (Kandy), and on an undeter- 

 mined Malvaceous plant (Peradeniya). Occurs also in India, on Mango (Cal- 

 cutta), on Boswellia (Tanjore), and on Capparis horrida (Surat). Recorded 

 by Newstead from German East Africa. 



The general appearance of a collection of these insects is remarkably like 

 that of an Icerya, for which it might easily be mistaken. 



PHENACOCCUS ORNATUS, nov. 

 (Plate CLXIII.) 



Adult female {figs, i, 2) oblong oval, flattish ; pinkish yellow to reddish 

 orange. Dorsum more or less completely covered with white mealy secretion 

 which does not, however, obliterate the divisions of the segments ; margin with 

 a series of twenty-six extremely long, slender, white waxy tassels, radiating 

 symmetrically from the body of the insect (fig. 2). Antennae and limbs long 

 and slender. Antenna {fig. 6) nine-jointed ; second joint considerably longer 

 than any of the others ; all the joints with a few moderately long hairs. Leg 

 {fig. 7) with the tibia equal in length to the femur and trochanter ; tarsus 

 approximately one-fourth length of tibia ; claw, without any denticle ; ungual 

 digitules very slightly dilated at extremity ; tarsal digitules short, simple. Eye 

 (see fig. 4) unusually prominent, on an elongate conical tubercle. Spiracles 

 {fig. 5) trumpet-shaped. Margin of body with a complete series of twenty-six 

 sharply defined oval chitinous plates {see fig. 3) each of which bears a cluster 

 of stout conical spines and numerous small ceriferous pores (see figs. 4 and 8) ; 

 some larger circular pores are distributed over the surface of the body. Anal 

 ring {fig. 8) with six stout setae springing from an irregular cluster of small 

 pores. Caudal setae equal to or slightly smaller than those of the anal ring. 

 Length 2'5o to 3"o mm. Breadth 07510 r25 mm. Marginal waxy processes 

 3'o to 5'o mm. 



Male puparium in the form of an oblong cottony sac, open at the posterior 

 extremity. 



