Maskell. — On Coccidie. 101 



Australia to India, and, on the other hand, a trade in tea from 

 India to Austraha ; so that the transport of insects either way 

 is probable enough, and either country may be tlie original 

 home of J. cegyptiaca. 



The second stage of this species has not hitherto been 

 reported by Mr. Douglas or by Messrs. Eiley and Howard. 



Icerya rosae, Eilev and Howard, var. australis, var. nov. 



Plate VIII., figs. 4-8. 



Adult female subglobular or very slightly elliptical, the 

 ventral surface flat, the dorsum very convex : colour a deep 

 rich brown, almost black, with a row of yellow spots on the 

 margin and another row of similar spots midway : there would 

 appear to be thus two spots on each segment on each side, but 

 the segmerLts are not very clearly defined ; the general colour 

 is often a lighter brown or even red in the early adult stage. 

 The epidermis bears short scattered hairs, those at the 

 abdominal extremity being rather the longest. There is some 

 white cotton which forms a thin cushion beneath the insect 

 and is also thinly scattered on the dorsal surface, but there is 

 no posterior ovisac. Antennee of ten joints (or sometimes 

 eleven) subequal in length except the last, which is as long as 

 any two others. Feet normal. Longitudinal diameter at full 

 growth about lin. The twig on which the insect lives is 

 covered with thin patches of white mealy cotton. 



Second stage not observed. 



Larva red, active, elliptical, flattish : feet and antennae 

 black. Antennae normal, of six joints, as in I. purchasi. Feet 

 normal. The abdominal extremity bears six very long setose 

 hairs springing from small tubercular bases. The body is 

 covered with many hairs, interspersed with longitudinal rows 

 of multilocular spinnerets ; these hairs are rather long all over, 

 but the last three pairs on each margin of the abdomen are 

 longer than the others, though not as long as the terminal 

 ones, and are bent in an arch. Length of larva about ^V^n. 



Hab. In Australia, on Hakea gibbosa. Mr. Froggatt sent 

 me a number of specimens from Sydney, and says, " Eare ; 

 only found on one plant." 



This large and handsome species is so very near to I. rosce, 

 reported from Key West, Florida ("Insect Life," Sept., 1890), 

 by Messrs. Eiley and Howard, that I cannot consider it as 

 more than a variety. The differences lie, first in the yellow 

 dorsal spots of the adult female and in the ten-jointed antenna 

 of that stage, and secondly in the arrangement of the hairs on 

 the larva. As regards the adult antenna, I have carefully 

 examined seven specimens, of which five had certainly ten 

 joints, and the other two seemed to exhibit an eleventh. 

 The type of /. roscB is said [loc. cit.) to have the larva 



