No. 3.] Original Communications. 



95 



Eriochiton cajani, Mask. 

 {Indian Museum Notes, Vol. II, No. i, p. 59, (1891 .) 

 This species should be removed to the genus Ceroplastpdes, 

 Cockerell, 



Aclerda japonica, Newst. 



(Ent. Mo. Mag. April, 1901. ) 



Dr. Watt has sent me examples of this species, infesting sugar- 

 cane, where it occurs beneath the sheathing bases of the leaves, in 

 company with Asp. glomeratus, as described above. 



Iuglisia bivalvata, sp. nov. 



Adult ? (pi. XVIII, fig. 3,) oval : strongly convex above, the 

 dorsal area rising steeply into a bicuspid median point. Dorsum com- 

 pletely covered by two glassy shell-like plates meeting along the 

 median longitudinal line. These plates are most delicately fluted in 

 radial curves, the rays meeting at each cusp and are easily separable 

 from the body of the insect. In dried specimens they usually become 

 detached, when they resemble the valves of some minute mollusc. 

 A fragmentary fringe of small glassy plates can often be distinguished 

 at the posterior extremity. Colour of test very pale fulvous or brown- 

 ish-yellow. Colour of insect brown. Antenna (fig. 3, a) small, the 

 joints rather confused : six separate joints distinguishable : two 

 basal joints short and broad, then a long stout joint, almost as long 

 as all the others combined, with one (sometimes two) incomplete 

 divisions : the three terminal joints small and short. Mentum mono- 

 merous. Leg (fig. 3, <5)well developed : tarsus (exclusive of claw) 

 frds length of tibia : ungual digitules broadly dilated ; tarsals fine 

 knobbed hairs. Anal aperture (fig 3, c) surrounded bv dense chiti- 

 nous skin : the anal scales widely divergent, triangular, outer edge 

 longer than base, a small tooth-like process on inner edge near apex ; 

 anal ring with 6 long stout hairs. Margin of body with a series of 

 sharply-pointed conical spines alternating with an equal number of 

 sessile bilocular pores : both spines and pores communicating, by 

 delicate ducts, with a remarkable system of ramifying vessels (fig 

 3, d) resembling the circulatory system in higher animals. Slight 

 marginal indentations at the stigmatic regions, marked by slight by 



H 2 



