West Australian Coccidie. 471 



colonies containing great numbers of $s. Described from 

 15 prepared specimens. 



Genus Chionaspis, Signoret. 

 91. Chionaspis agonis, sp. n. 



5 scale straight, long and narrow, slightly convex. Exuvise pale 

 straw-coloured, remainder of scale dull white. Length 0'13, width 

 0-03 inch. 



Adult $ elongate, of a light, yellow colour ; pygidium rounded 

 and presenting the following characters : median lobes conspicuous, 

 short, wide, diverging, apex truncate ; second lobes much smaller and 

 divided into two lobules, median lobule inconspicuous, narrow at the 

 base and spatulate, outer lobule smaller still and tapering ; beyond 

 the second lobes the margin is incised several times ; plates simple 

 and tapering, first situated beyond the median lobes, second beyond 

 the second lobes, and a third a short distance beyond that ; the spines 

 at the bases of the median lobes are very small, the remainder more 

 conspicuous and adjacent to the plates. Five groups of circumgenital 

 pores, anterior 4 to 8, anterior laterals 13 to 15, posterior laterals 

 19 to 21. 



(J puparium white with a slight median carina. Larva skin 

 straw-coloured. 



On Agonis Jicxuosa. 



92. Chionaspis ethel^, sp. n. 



5 scale elongate, broad behind, exuvise red-brown, rest of scale 

 dull white. Length O'l inch. 



Adult 9 elongate, distinctly segmented, with lateral groups of 

 spines, particularly prominent on the four abdominal segments. 

 Antennas spots distinct. Last segment broadly rounded with a pair 

 of conspicuous, apparently diverging, wide and short median lobes, 

 the inner margins of these lobes are joined by a horseshoe-shaped 

 thickening, they are at first parallel, then rounded and widely 

 divergent ; tlie lateral margins appear concave ; immediately beyond 

 the median lobes there is a short simple plate ; then 3 equal-sized 

 lobules, the first arising from a depression with thickened sides ; 

 there is a second much longer simple plate beyond the third lobule, 

 and beyond this again 2 emarginate and almost obsolete lobules, both 

 originating from depressions with club-shaped, thickened sides ; 

 beyond this another simple plate, followed by two similar depressions 

 and several serrations, followed again by similar plate, depressions 

 and serrations. The spines are small and situated before the plates. 



