436 Records of the Indian Museum. [Vol. XVI, 



process. The tridentate processes are probabl}^ homologous with the 

 usual median lobes. The lateral lobes are possibly represented by a 

 minute process immediately catidad of the second marginal pore. 

 In one example (fig. 46") all of the median processes have been 

 suppressed, leaving the margin — at this part — irregularly sinuate. 

 Squames represented (if at all) by a few minute projections to- 

 wards the base of the pygidium. Circumgenital glands in four 

 groups : the upper lateral group with from 13 to 17 pores, the 

 lower laterals with from 34 to 41 pores. Dorsal oval pores numer- 

 ous, large and conspicuous: in regular series following the contour 

 of the suppressed segments. Anal orifice near the base of the 

 pygidium. lycngth i"5 to 2 mm. 



On ' Chir Pine ' {Pinus sp.) : Almora, Kumaon, U.P. (coll. 

 Forest Zoologist, Dehra Dun.) 



It is with considerable hesitation that I have assigned this 

 insect to the genus Chionaspis. The characters of the covering 

 scale, and most of those of the insect itself, suggest its affinity to 

 Maskell's genus Poliaspis. But that genus was founded especial- 

 ly to contain species possessing more than five groups of circum- 

 genital pores, of which this insect has four only — an unusual 

 number in any Diaspidine genus, except Parlatoria and Aspidiotus, 

 with neither of which can this species be associated. 



Chionaspis (Phenacaspis) gudalura, n. sp. 

 (PI. XXVII, fig. 6a, b). 



Puparium of female (fig. 6a) circular, the larval pellicle pro- 

 jecting beyond the margin ; slightly convex above. Colour clear 

 white, the pellicles castaneous. Average diameter 2 mm. 



Male puparium white : .strongl}^ tricarinate. Length approxim- 

 ately I mm. 



Adult female ovate ; length approximately equal to twice the 

 breadth. Pygidium (fig. 6b) broadly rounded. Median lobes 

 occup3dng a slight median depression ; their bases united, their 

 distal edges divergent, without serrations or indentations. Lateral 

 lobes duplex, prominent; the first laterals distinct, the two lobules 

 of approximately equal size ; the second laterals in the form of 

 thickened marginal prominences, the inner lobule with an oval 

 dorsal pore at its base. vSquames spiniform. Marginal spines 

 inconspicuous. Anal orifice central. Circumgenital glands in five 

 groups, with numerous pores ; median group 16 to 25 ; upper 

 laterals 30 to 42, lower laterals 29 to 28. Oval dorsal pores con- 

 spicuous, in broken longitudinal curved series. Length 1*5 mm. 

 Breadth approximately 075 mm. 



Massed on the stems of a large species of Bamboo. Gudalura, 

 Nilgiris (coll. E. E. Green). 



This is one of those species which reveal the close affinity 

 between the Phenacaspis section of the genus Chionaspis and the 

 Aulacaspis section of Diaspisy the chief distinction between which 



