138 Ckionaspis. 



CHIONASPIS EL^AGNI, Green. 



(Plate XLVI.) 



Ckionaspis elceagni, Green, ' Catalogue of CoccidEe, Indian Museum Notes, 

 Vol. IV., No. I, p. 3 (1896). 



Female puparium {fig. 4) very slightly convex ; irregular in outline, but 

 usually more or less broadly pyriform ; very thin and delicate. Colour greyish 

 white, semi-transparent ; pellicles very pale straw colour. The first pellicle 

 only exposed ; rest of scale completely covered with the stellate hairs of the 

 leaf, which remain in their original position, the scale being gradually extended 

 beneath them. Length about 3 mm. Greatest breadth 2 mm. 



Male puparium {fig. 5) of normal form ', sides almost parallel ; strongly 

 tricarinate ; snowy white, pellicle pale straw colour. Length i mm. 



Adult female bright yellow ; terminal segment reddish {fig. 3), but 

 frequently masked by a layer of white waxy matter {fig. 6) ; rostral area 

 brownish. Form oblong ; thoracic segments broadest ; abdominal segments at 

 first well defined {fig. 6), contracting after oviposition, when the insect becomes 

 almost rhombic in outline {fig. 3). Eyes wanting, but their normal position 

 marked by minute marginal tubercles. Antenna {fig. 11) consisting of a small 

 tubercle and stout curved bristle. Second and third abdominal segments 

 fringed with spiniform squames. Pygidium {fig. 7) pointed. Lobes large and 

 prominent ; median pair largest and divergent ; first and second lateral lobes 

 duplex, each lobule wedge-shaped ; all the lobes minutely crenulate on their 

 free edges. A single pointed squame on each of first to fourth spaces, and two 

 or three on base. Marginal pores normal. A series of oval pores on each of 

 fourth and basal spaces, and a similar series on third abdominal segment. In 

 some examples, especially such as have been parasitised, the squames are more 

 or less suppressed. Circumgenital glands in five groups: median, 8 to 18; 

 upper laterals, 15 to 20 ; lower laterals, 8 to 18. Anal slightly below genital 

 aperture. Size very variable. Length V2^ to 2*30 mm. Breadth 0*40 to i mm. 



Adult male {fig. 8) bright red or reddish yellow, scutellum paler, lateral 

 margin of abdomen purplish, tarsi pale. Form normal, moderately stout. 

 Upper pair of ocelli smallest ; lower pair separate by less than half their 

 diameter. Antenna as long as body ; hairy ; terminal joint abruptly narrowed 

 in front, a curved knobbed hair at apex {fig. 9). Foot {fig. 10) with three 

 knobbed hairs, one on claw and two on tarsus. Genital sheath long and 

 slender, more than half length of body. Total length of insect 075 mm. 



Eggs and young larvae bright yellow. Eggs very numerous. 



Habitat on under surface of leaves of Elaa^nus latifoliaj Pundaluoya. The 

 male scales occur in large groups ; the female scales singly {fig. i). 



A fairly abundant species, but escaping notice by reason of its protective 



