1904.] 



207 



Tarsus scarcely half length of tibia. Plates of anal operculum rather narrow and 

 acuminate; base and outer edge approxiinately equal ; outer angle obtuse. Anal 

 ring with six stout hairs. Derm closely' set with large conspicuous oval or sub- 

 circular translucent cells. Length, to 'J nnn. ; breadtii, 4 to 5.75 mm. 



Hahitnt : On steins of Kri/thrinn Jilliosperma (No. 22). 



This insect is the giant of its kina, but is closely approached by 

 P. mammece. Mask., which attains a length of nearly 8 mm. The 

 present species resembles mammeeB in other characters, e.g., the struc- 

 ture of the antennae and legs ; but Maskell makes no mention of a 

 marginal fringe of liairs, nor of the celluhir character of the dorm. 

 Maskell states that in mammew the tarsal digitules are wanting. In 

 maivima they are long, stout and distinctly knobbed. 



PuLViNARiA psinii, Mask. 

 On Cqfea Jibcrica (No. 4) and Ficus sp. (No. 0). 



Ceroplastes oinRiiiPEniFORMis, Cotnstock. 

 On Eugenia aquea fNo. G). 



The specimens to hand are not in very good condition, but all the 

 cliaracters, as far as they can be seen, correspond very closely to those 

 of Comstock's species. The anal operculum is situated on a prominent 



conical process. There are no marginal 

 hairs, but at each stigmatie cleft is a 

 group of about 25 conical spines, the 

 extremities drawn out into sharp points 

 (fig. 3). Comstock describes these spines 

 as arrow-shaped and constricted at the 

 base. As pointed out in some "Observations on the genus Cerophstes " 

 (Ann. and Mag. Nat. Hist., Ser. 7, Vol. iv, Septeud)cr, 1S99, pp. 190, 

 191), this stalked appearance is unreal, being produced by the sub- 

 cutaneous tube leading inwards from the spines. There is a slight 

 constriction at the base, but nothing that could be interpreted as 

 pedicillate. In most of my specimens the very elongate ;3rd joint of 

 the antennae shows an imperfect division at about one-third its length 

 from the base. 



Cehoplastes vinsonii, Sign. 

 On Ilipfage laurifoJia (No. 54). 



DiASPis PENTAGONA, Targ. 

 On young plants of Ergthrina Utlioxperma (No. 3) and on Thea 

 assamica (No. G9). 



Fig. .3. 



