335 



PAPERS READ. 



NOTES ON THE FAMILY BRAGHYSCELID^, WITH 

 DESCRIPTIONS OF NEW SPECIES. 



Part III. 



By Walter W. Froggatt, Technological Museum, Sydney. 



(Plates xvL-xvn.) 



This Part of my notes consists of the description of a new and 

 very remarkable species of Brachyscelis, received from Cobur, 

 N.S.W., by Mr. J. H. Maiden, to whom I am indebted for the 

 opportunity of adding it to our list of gall-making coccids. The 

 rest of the paper contains descriptions of a number of new coccids 

 all belonging to the genus Opisthoscelis. Wherever the Eucalypts 

 grow these galls are found, and no doubt, when collections are 

 made from all parts of Australia, this group of the Coccidse will 

 be greatly increased. The difficulty has not been to find galls, 

 but to decide which are distinct species, for in some the galls are 

 very variable, and wliere one species attacks several difierent 

 species of Eucalypts they often differ so much that it is only by 

 carefully examining the female coccids that one can define the 

 specific characters. While in the genus Brachyscelis the female 

 and male galls all have the opening at the apex, in the genus 

 Opisthoscelis it may be either at the apex or at the base on 

 the underside of the leaf; all the species (with one exception) 

 described herein have only the long posterior pair of legs, with an 

 immense prolongation of the tarsal joint, but it is not always 

 quite truncate at the tip as in the typical 0. suhrotunda ; the 

 coccid is more elongate, with the tail more rounded, while in the 

 last stage of the female's existence, in several of these she is so 

 solidly attached to the base of the gall that one can only remove 



