293 



Eepidiota perkinsi, Blackb. 

 Four co-types of this species are slightly smaller and the 

 prothoracic punctures are smaller in proportion than on the 

 males noted under darwini, but at most they represent a 

 : slight variety of the same. If the males so noted are really 

 males of darwini, then perkinsi must rank as a variety only of 

 "that species. 



Lepidiota delicatula, Blackb. 



L. suavior, Blackb. 



In the late Rev. T. Blackburn's collection there was no 

 label representing delicatula, as there nearly always was when 

 an unique specimen had been removed from his collection ; in 

 consequence he appears to have entirely overlooked the species 

 when tabulating the genus. (3) The type is in the South 

 Australian Museum, and was compared and agreed with the 

 type (now in the British Museum) of suavior. 



Lipidiota squamulata, Waterli. 



In commenting on the scales of this species (under the 

 •description of leai ) Blackburn laid stress on the colour of the 

 same. There are before me two specimens from his collection 

 labelled as squam ulata, two sent by Mr. Arrow as having 

 been compared with the type, and some others. The species 

 appears to be fairly common in North-western Australia. 

 Some of the specimens have all the scales of a snowy or 

 slightly waxen whiteness (probably the natural colour of 

 living specimens), on others they are all more or less brownish, 

 and on still others they vary from white to brown, but this 

 is almost certainly due to discoloration by age, immersion in 

 liquids, etc. 



DlPHUCEPHALA. 



In Blackburn's table of this genus (ante, 1906, pp. 268- 

 272), in A, E, and EE, there are mistakes; evidently ignota 

 was misplaced, and the word "elytra" was used instead of 

 "prothorax" ; the lines in question should have been: — 



E. Lateral margins of prothorax strongly dentate 



in the middle ... ... ... ... ... ignota. Mael. 



EE. Lateral margins of prothorax at most feebly 

 angular in the middle. 



the line EE governing only nite?is and rufipes, and not ignota. 

 For K (aurolimbala) the character of the clothing of 

 the pygidium used is confined to the female, the depression 

 behind the scutellum is extremely feeble, and practically 

 useless; the species, however, is a very distinct one. 



WAnte, 1912, p. 63. 



