448 Mr. C. Fuller 07i some sj^ccics of 



axis " is roiiiarkabl}' constant in the growth of tlio ^ galls, 

 there being nearly always some indication of an effort 

 towards upward growth. The majority of the galls are 

 found growing out from the twig at an angle of about 45'^, 

 when they arise from the upper side of the twig, and its 

 growth is natural ; when upon the lower side they often 

 bend right round and grow up. When they are upon a 

 twig that is growing downwards they grow back, so that 

 the apex is towards the sky. There are, of course, excep- 

 tit)ns, it being possible to find galls at all angles with the 

 twig; they are, however, but the exceptions proving the 

 rule. The species is a very common one in the neighbour- 

 hood in which it was found, and there are acres of Eucalypts 

 laden with the galls, and in some places the ground is 

 strewn with dead galls. The Coccids seem to be much 

 sought after by birds, the galls being found torn open and 

 the inmates gone ; curiously enough, however, they are 

 not, to my knowledge, subject to parasites, and the gall- 

 walls harbour no inquilines; facts which Avithout doubt 

 account for the numbers in which the galls were found. 

 Another interesting habit noticed is, that although the $ 

 galls never grow upon the $ galls, as is the case wdth two 

 or three other species, it is quite a common thing to find $ 

 galls growing upon each other, and in these cases it is 

 curious to notice that the gall which supports others is 

 never swollen at the point of attaf^hment, as is the case 

 with the twigs. 



DACTYLOPIIN.E. 



Genus Sph^rococcus, Maskell. 



Adult $s naked, or covered with cottony or waxy secre- 

 tion, or inhabiting woody galls. Anal tubercles small or 

 absent. Antenn;e usually atrophied. Legs absent or 

 atrophied. Larvie exhibiting anal tubercles. 



27. S'pJicV.rococcus pulchelliis, Maskell. 



This handsome species is particularly common on Hyjio- 

 hjmma an qvMi folium and also on Melaleucas^. Its general 

 colour is wliite; Maskell's figure is not quite correct. 



28. Sphasrococciis Icaii, sp. n. (Plate XV, fig. 21.) 

 Adult 9 occupying a small, elegant, somowliat spherical gall, witli 

 fluted sides ; growing at llie a]iex of the branchlets of Casnarina, sp. 

 Viewed externally the gall appears to be formed of many separate 



