DEPARTMENT OF AGRICULTURE, 

 NEW SOUTH WALES. 



SCIENCE BULLETIN, No. 19. 



A Descriptive Catalogue of tlie Scale 

 Insects CXoccidae") of Australia. 



PAllT III. 



SUB-FAMILY V.—Idiococcinae, Maskell. 



When defining this group (1892) Maskell says : " Adult feniales active or 

 stationary, gall making or naked, or producing cotton or wax. Anal 

 tubercles entirely absent; anal ring hairless. Antennae with usually less 

 than seven joints. Body not prolonged posteriorly.'' In 1898. he redefined 

 the group: "Anal tubercles absent or rudimentary; anal ring with or 

 without hairs.'' 



When erecting this sub-family, Maskell said, " they are separated from 

 the Monophlebinae by the absence of anal tubercles, and by the antennae; 

 from the BrachysceUnae by the absence of any abdominal prolongation or 

 ' tail ' ; from the Anthoc-occinae and Dactylopiinae by the absence of anal 

 tubercles and the hairless anogenital ring. They come nearer the Coccinae 

 m which the anogenital ring is liairless." 



Tlie male coccids develop in the cavity of the female galls in most cases, 

 and do not form separate galls. 



In Mrs. Fernald's catalogue this group is merged into the sub-family 

 DacUjlopimcp, but if there is any valid reason for subdividing the Coccinae, 

 this one is very well defined and should stand, certainly as regards the 

 Australian gall-making species. 



