346 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XVI. 



Aspidiotus trilobitifoemis, Green. 



Occurs also on Ixora coccinia. (Peradeniya. February.) 

 Odonaspis penicillata. n. s.p. (Pi. I, figs. 14 to 16,) 



9 Puparium (fig. 14) very pale fulvous: pellicles orange, usually 

 concealed beneath the whitish secretion, situate at anterior extremity. 

 Very firm and compact, the ventral scale as dense as the dorsal ; tho 

 two scales so firmly adherent that it is difficult to extract the insect 

 uninjured. Elongate: broadest immediately behind the pellicles: tapering 

 posteriorly : flattened beneath : strongly convex in front, depressed 

 towards hinder extremity. Length 1*50 to 2 mm. Greatest breadth 

 1 to 1*10 mm. 



$ Puparium (fig. 15) similar ; but smaller, narrower and paler. 

 Length 1 mm. 



Adult 9 clear pale purplish : oval. Pygidium (fig. 16) bluntly 

 pointed : somewhat resembling that of O. inusitatus, but with a 

 strongly cristate margin, three of the points on each side being larger 

 and more prominent (possibly representing lobes). There is a 

 moderately broad and deep excision at the extremity from which 

 springs a dense brush of tapering hairs, the tips meeting in a point 

 like a small paint-brush. No circumgenital glands. Numerous minute 

 circular pores in the denser chitinous area. Six stout and moderately 

 long paraphyses. Anal aperture near base of pygidium. Length 

 0*75 to 1*10 mm. 



Adult $ very pale purplish pink : ocelli black. Legs, notal plates 

 and genital sheath stained with reddish-yellow. Body rather slender : 

 not depressed as in typical Aspidiotus. Abdomen without lateral 

 flanges. Wings long and rather narrow. Genital sheath long and 

 slender. Antenna 10-jointed : terminal joint with one knobbed hair 

 at apex and two at side. First pair of feet with 4 digitules : second and 

 third pairs with two only (1 on claw and 2 on tarsus). Total length 

 1 mm., of which the genital sheath occupies nearly one-third. 



Puparia crowded on stems of a large Bamboo (Gigantochloa aspera), 

 half embedded amongst the tomentose hairs around the nodes : attached 

 by anterior extremity only. Peradeniya. May. 



Allied to 0. inusitatus, but easily distinguished by the termina 

 pencil of hairs and more cristate margin of pygidium. 



(Note. It is probable that my Chionaspis simplex (Cocc. Ceyt. 

 Part II, p. 160, PI. LVII) is more nearly allied to this group, in spite 



