165 



labrum is conspicuously present. H. jubatus, Blackb., is a 

 species having no trace of the erect plane. In the present 

 species the labrum is of the jubatus type, but not quite abso- 

 lutely, as from a certain point of view there is the appearance 

 of an extremely narrow upturned edging, which, on close 

 inspection, is seen to be not really erect. The trilobed out- 

 line of the head is feebly developed and scarcely divided, the 

 middle lobe a little more than two-thirds of a lateral lobe. 

 The punctures of the pronotum are a trifle closer than in the 

 immediately allied species (10 from the front scarcely reaching 

 the middle of the segment), but the species could not be placed 

 in the aggregate with pronotum closely punctured, in all of 

 which 10 punctures from the front fall decidedly short of 

 Teaching the middle. 



Victoria. 

 -H . austrinus, sp. nov. Modice elongatus, postice sat dila- 

 tatus ; sat nitidus ; f errugineus ; supra pilis brevibus 

 adpressis minus crebre vestitus ; clypeo (hoc antice late 

 vix emarginato) fronteque crebre rugulosis, fere ut 

 planum continuum visis ; labro clypei planum superanti ; 

 capite antice (a tergo oblique viso) tripliciter convexo 

 (parte mediana quam lateralium dimidium paullo latiori) ; 

 antennis 8-articulatis, articulo 3° quam 2 US sublongiori ; 

 prothorace quam longiori ut 8 ad 5 latiori, antice parum 

 angustato ; supra crebre sat subtiliter punctulato (punc- 

 turis circiter 27 in segmenti longitudine), lateribus 

 (superne visis) sat arcuatis pone medium nonnihil 

 ampliato-rotundatis, angulis anticis sat acutis modice pro- 

 ductis posticis (superne visis) obtusis, basi leviter 

 bisinuata, margine basali ad latera summa nonnihil magis 

 elevato ; elytris crebre minus fortiter punctulatis (trans 

 elytron puncturis circiter 30) ; coxis posticis quam meta- 

 sternum multo brevioribus, quam segmentum ventrale 

 2«ra v i x longioribus; tarsorum posticorum articulo basali 

 quam 2 US sat multo, quam 3 n? paullo, breviori : unguiculis 

 appendiculatis. Long., 4|- 1.: lat., 2-J- 1. 



The unusually short hind coxae furnish a distinctive char- 

 acter for this species among most of the Heteronyces of this 

 Group. From H. lateritkis, Blackb. (which stands beside it 

 in my tabulation), it may be readily distinguished by its pro- 

 thorax being scarcely narrower in front than at the base as 

 well as by the character cited in the tabulation. The trilobed 

 outline of its head is fairly well developed but not distinctly 

 divided, the middle lobe well projected, and a little less in 

 size than two-thirds of a lateral lobe. 



Western Australia : Swan River. 



