170 



stead reports (Quart. Journ. Inst. Comm. Research Tropics, Liver- 

 pool Univ., Vol. I, No. I, p. 19, Jan. 1906), A. cydoniae Comst. 

 upon rubber (Castilloa) from Nicaragua, C. America. This 

 species is even more closely allied to palmae than is rapax, and 

 were the determination made by a worker less careful than Mr. 

 Newstead one would be inclined to doubt the authenticity of the 

 name. A. cydoniae and its var., crawii, are quite common on 

 these islands as is also a variety of rubber trees but so far this 

 species has not been reported on rubber here. 



PSEUDAONIDI A TRILOBITIFORMIS ( Green) . 



Green, " Coccidae of Ceylon," I, p. 41, PL IV, 1896. 

 Food plant — unknown. Singapore (F. Muir No. 248). 



CHRYSOMPHALUS MINUTUS, n. sp. (fig. 2, a-d). 



^ scale. — Greenish yellow, subcircular, convex, diameter 0.65 

 mm. Exuviae sub-central, 1st orange, 2nd dark brown within 

 white circle. Ventral scale complete except central opening, 

 tough. 



$ scale. — Smaller, more elongate, with no appreciable ventral 

 deposit. 



9 . — Blood-red when dry. In balsam 0.450 mm. long by 

 0.42 mm. wide. Cephalic end more or less chitinised (especially 

 in old specimens), broadly rounded; thorax separated from 

 abdomen by lateral indenture. Pygidial termination quite broad, 

 spaces between lobes unusually large, especially between median 

 and second lobes (fig. 2, a). Three pairs of lobes: median pair 

 united except distal third, quite broad, darker than the others, 

 distinctly notched caudo-laterally, and terminating in an oval 

 cavity; second lobe scarcely broader, minutely serrated, bearing 

 about 5 teeth, oblique, separated from median by a space equal 

 to combined width of two median lobes; third lobe about ^ 

 width of second, similarly shaped, bearing about 3 teeth to the ser- 

 ration, distance from 2nd only about 3^ of that between 1st and 

 2nd. Paraphyses distributed as follows: 2 are on median lobe 

 pointing cephalad from cavity, the inner being % length of outer; 

 one more or less club shaped and much longer and stouter than 

 first two is situated just lateral of median lobe and bears a small 

 gland aperture, and a similar one at the inner base of the second 

 lobe ; one long fusiform paraphysis originates between the median 



