136 Chivnaspis. 



CHIONASPIS ACUMINATA, Gree^i. 



(Plate XLV.) 



Chionaspis acuminata^ Green, ' Catalogue of Coccidae,' India?i Museum Notes, 

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



Female puparium {fig. 7) elongate, narrow, pointed in front, and gradually 

 widening to posterior extremity ; a well-defined median longitudinal ridge along 

 the entire length ; margin flattened. Colour pale brownish fulvous, sometimes 

 dark brown. Pellicles pale yellow. Ventral scale consisting of a narrow strip 

 on each side, attached within the flattened margin, and bordering the channel 

 in which the insect hes. Length 2*50 to 3 mm. Greatest breadth i mm. 



Male puparium {figs. 2, 3) elongate; sides parallel; strongly tricarinate, 

 the carinas very rugose, the median one broad and prominent. Pellicle yellow, 

 usually masked by a little tuft of woolly matter. Secretionary area white, tinged 

 with red in the furrows, and a narrow line of same colour on each side of median 

 carina. This colouration — a very unusual character — is not dependent upon 

 the presence of the contained insect, but persists after the exit of the adult 

 male. The puparia are massed in large clusters, and so arranged that they lie 

 parallel with each other, all pointing in the same direction. The coloured lines 

 give a pinkish tinge to the whole mass, unlike the snowy white appearance of 

 most other species. Length r3o mm. Breadth 0*50 mm. 



Adult female {figs. 8, 9) long and narrow, sides sub-parallel, slightly wider 

 behind. Abdominal segments well defined. During gestation the abdomen 

 contracts, while the thoracic segments (especially the mesothorax) increase in 

 length. Colour bright yellow, tinged with orange in older examples, two 

 small marginal tubercles near anterior extremity marking position of rudi- 

 mentary eyes. Antenna consisting of the usual tubercle and stout curved 

 bristle. Anterior spiracles with small group of parastigmatic glands. Abdominal 

 segments with marginal groups of small but stout spiniform squames. Pygidium 

 {fig. 10) with small but distinct lobes; the first and second pairs duplex; 

 median lobes and each lateral lobule wedge-shaped, contracted at base, out- 

 wardly oblique. Squames stout ; one on each of third and fourth spaces and 

 two on base. The usual squames on first and second spaces appear to be 

 obsolete. Oval pores distributed over the entire dorsal surface of pygidium, 

 and a few on the penultimate segment. Orifices of circumgenital glands few : 

 median, 4 ; upper laterals, 6 to 7 ; lower laterals, 4 to 5. Anal and genital 

 apertures at same level. Length averaging 1*50 mm. Greatest breadth 

 0*50 mm. 



Adult male {fig. 4) bright reddish orange ; legs and extremity of antennse 

 very pale straw colour. Terminal joint of antenna {fig. 6) with two fine knobbed 

 hairs at side and a stouter one at apex. Foot {fig. 5) with three digitules (one 

 ungual, two tarsal) ; tarsus as long as tibia. 



