MonophlcbiiKr. \\\ 



the posterior extremity, which may extend to a length approximately equal to 

 that of the body of the insect. The ovisac is smooth below (seey?^-. 3), but is 

 covered above by a close series of long cylindrical waxy processes (seey?^. 4). 

 Antenna; {fiij;. 14) eleven-jointed, the second, third, fourth, and fifth broadly 

 cylindrical, the remainder narrower at their bases. Eyes prominent, bluntly 

 conical. Legs of the typical form {fig. 6), the tarsus strongly curved ; claw 

 {fiS- 7) stout and falcate, its inner edge smooth ; with two simple hair-like 

 digitules. Dermal setie moderately numerous, larger and stouter on the area 

 surrounding the anal orifice ; each seta springing from a stout tubercle which 

 is surmounted by a comparatively short collar {fig. 16). Derm with numerous 

 small beaded pores, having bilocular or trilocular apertures {figs. 12, 13), 

 interspersed with many large and conspicuous prominent ring-shaped pores 

 {figs. % 10, 11). The number of beads surrounding the small bilocular pores 

 varies from seven to nine. The trilocular form is less common and is sur- 

 rounded by eleven beads. The appearance of the large ring-shaped pores 

 varies in different aspects. When viewed from above {fig. 10) the aperture 

 appears to be encircled by a ring of from twenty to twenty-six oval beads ; but 

 when viewed from an angle {fig. 1 1) the beads seem to resolve themselves into 

 a series of flutings lining the short tube of the pore ; while, in a profile view 

 {fig. 9) the fluting appears to be on the outer face of the tube. The last is 

 probably the correct interpretation of the structure. At the point where the 

 ring projects above the level of the derm it is surrounded by a narrow, irregular 

 chitinous flange. The marginal area of the body is so crowded with pores and 

 setas that it is difficult to distinguish the abdominal spiracles or to determine 

 their exact number ; but there are at least three on each side, towards the 

 hinder end of the body. Length of insect (under compression) 4 to 6 mm. 

 Breadth y2^ to 4'5 mm. 



Young larva {fig. 5) pinkish orange ; the margins partially concealed by 

 colourless woolly secretion ; the dorsum with three large patches of bright 

 yellow secretion ; extremity of abdomen with six very long seta;. 



Eggs bright yellow. 



On Croion, Cocciilus sp., Citrus., Acalypha, Grevillea, and Pierospermiiin 

 suberifoliutn. Pundaluoya, Madusima, Kandy. 



ICERYA SEYCHELLARUM var. NARDl, nov. 



A form found on Aiidropogon ftardtis, at Diyatalawa, may eventually prove 

 to be a distinct species ; but, until further material is available, I prefer to retain 

 it as a variety of seychellarum, from which it dififers in the following particulars : 

 —Claw {fig. 17) minutely serrate, longer and less strongly falcate ; ring-shaped 

 pores {figs. 19, 20, 21) only obscurely fluted ; small pores {fig. 18) with irregu- 

 larly circular aperture, surrounded by a rosette of seven beads and a well- 

 defined chitinous rim ; base of set;c (fiig. 22) with a deeper collar ; abdominal 

 spiracles {fig. 23) with a broader duct ; dermal sets proportionately stouter 

 and more numerous. Described from a single example which resembled, 

 externally, the paler forms of typical seychellaruni. 



3M 



