36 



like jDrocess projecting between each of the lateral lobes and 

 the middle lobe. Consequently this species does not fit sat- 

 isfactorily into either of the primary sections into -which I 

 have divided the genus, having the labrum well in view Avhen 

 the head is viewed obliquely from behind ; nevertheless 

 the term "trilobed" is not applicable to the outline. On 

 the whole the insect appears to me least out of place if re- 

 garded as an aberrant member of the section in which the 

 labrum is not ordinarily visible from above, and if that view 

 of it be accepted there can be no hesitation about referring 

 it to Group III. ; otherwise it would have to be placed in 

 Group VII. 



II. luteolus, sp. nov. Minus elongatus, postice leviter dila- 

 tatus ; modice nitidus ; luteus, antennarum flabello tes- 

 taceo ; supra pilis brevibus adpressis sparsim vestitus , 

 clypeo crebre ruguloso, antice liaud marginato, late nee 

 fortiter emarginato ; labro clypei planum fere attingenti, 

 antice (capite a tergo oblique viso) leviter concavo ; 

 f ronte grosse rugulose punctulata ; clypeo fronteque ut 

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

 thorace quam longiori ut 9 ad 5 latiori, antice leviter 

 angustato, supra fortiter vix crebre punctulato (punc- 

 turis circiter 15 in segmenti longitudine), lateribus 

 (superne visis) sat fortiter rotundatis, angulis anticis 

 vix acutis parum productis posticis (superne visis) ro- 

 tundatis, basi leviter bisinuata, margine basali subtili 

 sat sequali ; elytris minus fortiter minus crebre punctu- 

 latis (trans elytron puncturis circiter 20) ; pygidio spar- 

 sim sat grosse punctulato ; coxis posticis quam metaster- 

 num multo brevioribus quam segmentum ventrale 2"'" 

 paullo longioribus ; f emoribus posticis inter series sparsim 

 minus fortiter punctulatis ; tibiis anticis extus trident-- 

 atis ; tarsorum posticorum articulo basali quam 2"s 

 paullo breviori quam 3"^ paullo longiori ; unguiculis 

 bifidis. Long., 3 1. ; lat., \\ 1. 



This little species is easy to identify by the characters 

 cited in the tabulation. The comparatively coarse punctur- 

 ation of its head and pronotum is very distinctive : the 

 punctures of the latter, though not very numerous when 

 counted, are somewhat crowded together by reason of their 

 being individually large. 



North-West Australia (exact locality not known). 

 H . asperifrons, sp. nov. Modice elongatus, postice vix dila- 

 tatus ; minus nitidus : brunneo-testaceus, pedibus cor- 

 poreque subtus magis rufis : supra pilis minus brevibus 

 adpressis sat sparsim vestitus ; clypeo crebre sat grosse 

 ruguloso-punctulato, antice profunde exciso ; labro 



