142 CJiionaspis. 



CHIONASPIS HEDYOTIDIS, sp. nov. 

 (Plate XLVIII.) 



Female puparium {fig. 2) white ; thin and semi-transparent, faintly revealing 

 the form and colour of the insect beneath. Form oblong, narrow in front, 

 widened and irregularly rounded behind ; margin often indented owing to the 

 interference of the hairs of the plant. Examples occurring on upper surface of 

 leaves and on exposed parts of the stem have the puparium of a stouter texture. 

 Ventral scale scarcely perceptible as a delicate film remaining attached to the 

 plant. Pellicles pale and transparent, except in specimens on exposed parts, 

 when they are brighter coloured and more opaque. Length 2 to 275 mm. 

 Breadth i to i'i2 mm. 



Male puparium {fig. 3 ) white, thin, the reddish colour of the pupa showing 

 indistinctly through the scale ; tricarinate, the carinas smooth and not very 

 prominent. Pellicle yellow. Length nearly i '50 mm. 



Adult female elongate ; abdomen as broad as or broader than thorax. 

 Colour, yellow in examples from under surface of leaf, bright orange in those 

 from exposed parts. Very faint eye- spots can be distinguished in the living 

 insect, on minute marginal prominences. A scattered marginal series of 

 minute hair-like spines all round the body. Parastigmatic glands at each 

 spiracle. Rudimentary antennae more than usually conspicuous ; the basal 

 disc well defined, bearing a stout curved bristle and several small prominences. 

 A group of seven to ten stout conical squames and a marginal series of small 

 pores on second and third abdominal segments. Pygidium {fig. 7) with median 

 lobes slightly divergent, bluntly pointed or rounded : lateral lobes duplex, each 

 lobule with rounded extremity. Squames moderately large ; one on each of 

 first and fourth spaces, and three or four on base. (In a form from Nuwara 

 Eliya there are two to three squames on the fourth space, and five to seven 

 on base.) A single dorsal pore on third space, a small series on fourth space, and 

 rather larger series on the base and on the third abdominal segment. Circum- 

 genital glands in five groups: median, 14 to 16 ; upper laterals, 22 to 28 ; lower 

 laterals, 15 to 20. In one example an extra group of glands (with seventeen 

 orifices) appears outside the upper laterals on one side, taking the place of the 

 glandular scar usually found in this situation. Anal and genital apertures 

 usually at same level, the former sometimes slightly anterior. Length 075 to 

 I mm. Breadth 0*50 mm. 



Adult male bright red ; legs and antennae yellowish. Rudimentary eyes on 

 genae colourless. Terminal joint of antenna {fig. 4) shorter than ninth, with a 

 single knobbed hair at apex as long as or longer than the joint, and a sub-apical 

 tubercle with two short spines. Foot with three digitules (one ungual and two 

 tarsal). Total length 175 mm., including genital sheath, which measures 

 o"So mm. 



