164 



sat acute rectis, basi sat fortiter bisinuata, margine- basali 

 ad latera gumma paullo magis elevato : elytris crebre 

 minus fortiter squamose punctulatis (trans elytron punc- 

 turis circiter 30), granulis minutis nitidis permultis in- 

 struetis ; pygidio longitudinaliter subcarinato crebre 

 subtilius punctulato ; coxis posticis quam metasternum sat 

 brevioribus quam segmentum ventrale 2" m sat longioribus : 

 tarsorum posticorum articulo basali quam 2 IU> paullo 

 breviori, 3 U subaequali : unguiculis appendiculatis. Long., 

 4f I; lat.,2 f Vl- 



Resembles (' unnamulhe, Elackb., in general appearance, 

 but can be readily distinguished from it by the difference in 

 the form of the prothorax (already discussed under Cunna- 

 muUcp). The trilobed outline of the head is feebly developed, 

 scarcely divided : the middle lobe about two-thirds of a lateral 

 lobe. The puncturation of the el} T tra becomes very fine and 

 close near the apex. 



New South Wales : Sydney, Galston, Blue Mountains. 

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

 tatus ; minus nitidus ; niger, elytris piceis, palpis antennis 

 tarsisque rufescentibus ; supra pilis brevibus adpressis 

 vestitus ; clypeo crebre ruguloso, antice emarginato ; labro 

 clypei planum superanti, toto longitudinaliter concavo ; 

 capite antice (a tergo oblique viso) tripliciter convexo 

 (parte mediana quam laterales paullo angustiori) ; fronte 

 crebre fortiter ruguloso-punctulata ; hac clypeoque ut 

 plana minus disparia visis ; antennis 8-articulatis, articulo 

 3° quam 2 US parum breviori : prothorace quam longiori 

 ut 9 ad 5 latiori, antice sat angustato, minus fortiter vix 

 crebre punctulato (puncturis circiter 21 in segmenti 

 longitudine), lateribus (superne visis) modice arcuatis, 

 angulis anticis minus acutis minus product-is posticis 

 (superne visis) rectis nonnihil retrorsum productis, basi 

 bisinuata, margine basali sat aequali ; elytris nonnihil sub- 

 striatis, crebre subtilius aspere punctulatis (trans elytron 

 puncturis circiter 30) : pygidio sparsius subtilius punctu- 

 lato ; coxis posticis quam metasternum sat brevioribus 

 quam segmentum ventrale 2 um sat longioribus ; tarsorum 

 posticorum articulo basali quam 2" s sat breviori quam 3" s 

 sat longiori; unguiculis appendiculatis. Long., 4 1.: 

 lat., 2 1. 



A very distinctive character of this species is found in the 

 shape of the labrum, which does not appear to have an erect 

 plane (distinct from a lower plane sloping away more or less 

 horizontally hindward from the lower edge of the erect 

 plane). In most Heteronyces, of Groups V.-VIII. (e.g., B . 

 elongatus t Blanch., of this memoir), the erect plane of the 



