179 



quam segmentum ventrale 2 um multo longioribus; tar- 

 sorum posticorum articulo basali quam 2 US multo, quam 

 3 US vix, breviori : unguiculis bifidis. Long., 3 1. \ 

 lat., 1J 1. 



A distinct little species not likely to be confused with 

 any other known to me. Its unusually narrow prothorax is 

 noteworthy. Its trilobed outline is well denned but not 

 divided, the middle lobe somewhat strongly prominent and 

 about three-quarters of a lateral lobe in size. 



North Queensland (Mr. Perkins). 



H. rectangulus, sp. nov. Modice elongatus, postioe paullo 

 dilatatus ; sat nitidus ; f errugineus ; supra pilis minus 

 brevibus sparsius vestitus; clypeo crebre subtilius rugu- 

 loso, antice late nonnihil emarginato ; labro clypei planum 

 superanti ; capite antice (a tergo oblique viso) tripliciter 

 convexo (parte mediana quam laterales sat angustiori) ; 

 fronte fortius subrugulose punctulata; hac clypeoque ut 

 plana valde disparia visis; antennis 9-articulatis ; pro- 

 thorace quam longiori ut 7 ad 4 latiori, antice leviter 

 angustato, supra sparsius minus fortiter punctulato 

 (puncturis circiter 16 in segmenti longitudine), lateribus 

 (superne visis) minus arcuatis, angulis anticis sat acutis 

 sat productis posticis (superne visis) acute rectis, basi 

 sat fortiter bisinuata, margine basali sat sequali ; elytris 

 sat fortiter minus crebre punctulatis (trans elytron punc- 

 turis circiter 22) ; pygidio fortius crebrius punctulato ; 

 coxis posticis quam metasternum sat brevioribus quam 

 segmentum ventrale 2 um sat longioribus ; tarsorum posti- 

 corum articulo basali quam 2 US paullo breviori, quam 3 US 

 sublongiori; unguiculis bifidis. Long., 4 1.; lat., 2 1 

 The sharply-defined hind angles of the prothorax of this 

 species are unusual ; viewed obliquely from in front the pro- 

 notum is seen to be somewhat expanded and reflexed at the hind 

 angles, but the actual raised edging is not accentuated. The 

 trilobed outline of the head is very strongly developed and 

 divided, the middle lobe about two-thirds of a lateral lobe in 

 size. 



South Australia; Pinnaroo (Mr. Griffith). 



H disjectus, sp. nov. Modice elongatus, postice leviter dila- 

 tatus ; sat nitidus ; f errugineus ; supra pilis brevibus 

 erectis sparsim vestitus ; clypeo crebre subtilius rugu- 

 loso, antice late leviter emarginato ; labro clypei planum 

 superanti ; capite antice (a tergo oblique viso) tripliciter 

 convexo (parte mediana quam laterales sat angustiori) ; 

 fronte crebre subtilius nonnihil rugulose punctulata ; hac 



