Chionaspis. 125 



CHIONASPIS ELONGATA, Green. 



(Plate XXXIX.) 



Mytilaspis eloiigata, Green, ' Catalogue of Coccidse,' Ind. Mus. Notes, 

 Vol. IV., No. I, p. 4 (1896). 



Female puparium white ; very long and narrow {/ig. 13) ; margin narrowly 

 flattened. First pellicle very pale yellow ; margin with a complete series of 

 longish curved spines. Second pellicle elongate ; pale reddish orange, darker 

 at the sides ; thinly coated with whitish secretion. Pellicles in fully developed 

 puparia together occupying rather less than one third the total length. Ventral 

 scale represented by a very narrow strip on each side of the median channel 

 {fg. 14). Length varying according to age, the most mature specimens reaching 

 a length of 3-50 mm., with a breadth of only 0*50 mm. 



Male puparium {Jig. 9) white ; slightly widened and very obscurely carinated 

 towards the posterior extremity. Ventral scale incomplete, represented by a 

 narrow infolding of the margin along the anterior two thirds of the puparium 

 {Jig. 8). Pellicle very pale yellow. The male pup0.ria are often partially 

 concealed by an accumulation of loose curling filaments secreted by the insect 

 in its earlier stages. These originate as a pair of brush-like tufts diverging 

 from the hinder part of the larva {Jig. 7). Length r25 mm. 



Adult female {Jig. 11) pale yellow, deepening to dull orange-yellow during 

 gestation {Jig. 10). Long and very narrow; the thoracic segments greatly 

 elongated ; the abdominal segments short, the second and third laterally 

 produced and bearing two to three stout spiniform squames. The remarkable 

 increase in length takes place apparently during gestation. The early adult, 

 immediately after the second moult, is of the ordinary form ; but the thoracic 

 segments are minutely and closely wrinkled transversely, to allow of extension. 

 On each side of the anterior extremity is a small marginal prominence corre- 

 sponding to the elevated spot upon which the eye is situated in some species. 

 Parastigmatic glands represented only by one or two inconspicuous pores at the 

 anterior spiracles. Pigidium {Jig. 12) rather pointed ; median lobes divergent, 

 prominent, pointed, their inner edges emarginate ; first lateral lobes minute, 

 duplex, the inner lobule prominent and squarely cut at extremity ; other lobes 

 obsolete. Squames large, decreasing in size towards extremity ; one on each of 

 first to fourth spaces, and two or three on base. Circumgenital glands in five 

 groups : median, 4 to 6; upper laterals, 8 to 10 ; lower laterals, 10. Series of 

 dorsal pores on fourth space, on base of pygidium, and on third abdominal 

 segment. Anal slightly anterior to genital aperture. Length 1-25 to v^o mm. 

 Breadth about 0*15 mm. 



Adult male {Jig. 2) bright red. Head rather small. Prothorax narrowed in 

 front ; mesothorax ample, but not very prominent dorsally. The four oceUi 

 subequal in size, the lower pair rather widely separate. Antennae a little 



