336 NOTES ON THE FAMILY BRACHYSCELID^, 



her in fragments. The anal appendages are either formed by two 

 or four incurved or straight spines, sometimes in an anal ring, Vmt 

 more frequently this ring is absent ; the spines are not always 

 vi.sible in all the species, but I think that they are always present 

 in some stage of the development of every species of Opisthoscelis. 

 The larva is not, like 0. suhrotunda, finely serrate all round the 

 outer margins, but only carrying a fringe of very short hairs or 

 bristles on the front of the head, with a single short bristle on 

 either side of each abdominal segment ; while in four species I 

 have examined they are generally rather broader and stouter, the 

 eyes close behind the antennse and the thorax swelling out slightly 

 behind the eyes. The larva of Brachyscelis is not lobed in the 

 centre of the head, and the outer margins are not serrate but fringed 

 right round with flat feather-like cilia, close together but not 

 touching, and truncate at the extremity, which give the larva a 

 very beautiful appearance under the microscope. 



While the true Brachyscelidce are confined to the Eucalypts, 

 SpharceocoGCUs is found upon Melaleuca and Leptospermuin. I 

 have had much pleasure in handing over to Mr. Maskell several 

 species of the latter genus that I have collected about Sydney, 

 which will be described in the next part of the Transactions of 

 the New Zealand Institute. 



The coccids belonging to the genera Cydindrococcus and 

 Frenchia, both formed by Maskell, are peculiar to the Casuarinse, 

 so at the present time the food-plants of the chief groups of our 

 gall-making coccids are well defined. 



Brachyscelis umbellata, n.sp. (PI. xvi. figs. 1-2). 



^. Gall bright green, 12 lines long, 1| lines broad at base, 5 

 lines in diameter at apical rim, cylindrical, elongate, funnel- 

 shaped, apex brown, rough, and warty, the rim sometimes curving 

 over in irregular lumps, convex, apical orifice elongate-oval, very 

 small, situated at the tip of a spine-like projection which springs 

 from centre of depression but is level with outer margins of apical 

 walls ; walls of chamber soft and spongy, inner or woody shell 



