497 



T. eyrensis, Blackb. Ooldea. 



T. litigiosus, Har. Farina, Lakes Crossing, Ooldea, 



Strzelecki Creek. 

 T. perhispidus, Blackb. Leigh Creek. 

 T. strzeleckensis, Blackb. Leigh Creek. 

 T. velutinus, Blackb. Trinity. 

 Liparochrus geminatus, Westw. Leigh Creek. 



Pararhopaea gigas, Lea. 

 PL xxxiii., figs. 18, 19. 



We obtained twenty specimens of this fine species at 

 Ooldea ; they flew to the vicinity of lights with a loud boom- 

 ing noise. Subsequently others were received from Messrs. 

 Ash and Jones, all males. 



Zietzia geologa, Blackb. Roxley Downs (pi. xxxiii., 

 figs. 20, 21). 



Heteronyx beltanae, Blackb. Ooldea. 



H. castaneus, Macl. Carraweena, Farina, Higgins 

 Dam, Lakes Crossing, Petermorra Spring. Strzelecki 

 Creek. 



H. lubricus, Blackb. Ooldea. 



H. piceus, Blanch. Parachilna. 



H. squalidus, Blackb. Farina. 



H. unicus, Blackb. Hergott. 



H. waterhousei, Blackb. Ooldea. 



Enamillus mauricei, Blackb. 

 PI. xxxiv., fig. 26. 



On the figure the wide black apical fascia is scarcely 

 evident, but it is very conspicuous on the specimen itself. 

 Ooldea. 



Haplonycha. 



The species of this genus are numerous in South and 

 Western Australia, and at first glance many so strongly 

 resemble each other that it appears to be an almost hopeless 

 task to attempt to separate them ; but the tables given by the 

 late Rev. T. Blackburn W enable most of the known species 

 to be readily distinguished, or at least to be sorted into 

 groups, although manipulation of the brittle cephalic appen- 

 dages has often to be resorted to. 



Group 1. — It is not always easy to count the joints of the 

 antennae without snapping them off, but as the distinctive 

 feature of this group (an eight- jointed antenna, against a 

 nine- jointed one of all others) is an arithmetical one, the few 

 species may be referred to it with certainty. 



(9) Ante, 1906, pp. 292-304. 



