46 



This is an easily recognizable species, the feebly impressed 

 puncturation of its pronotum and elytra with the punctures 

 of the latter very much finer and closer than of the former 

 being unusual in Heteronyx. It is a member of my Group 

 VI. (Trans. Roy. Soc, S.A., 1910, pp. 149, etc.), and in the 

 tabulation of species of that group falls beside cygneus, 

 Blackb . , on account of its clypeus not extending laterally 

 beyond the contour of the eyes. The two may be thus 

 distinguished : — 



H. Punctures of pronotum deeply impressed 



and sparse (about 15 in the length) cygneus, Blackb. 

 HH. Punctures of pronotum much smaller, 



fainter, and closer ... ... ... cribripennis, Blackb. 



South Australia (Cleve) ; taken by Mr. J. S. Blackburn. 



H. johannis, sp. nov. Ovatus, sat brevis; parum nitidus; 

 ferrugineus, elytris nigro-fuscis ; supra pilis adpressis 

 minus brevibus cinereis vestitus; clypeo subtilius 

 minus crebre ruguloso, antice subtruncato, oculos 

 in exteriorem partem haud superanti; labro clypei 

 planum superanti; antice haud perpendiculari ; 

 capite antice (a tergo oblique viso) tripliciter convexo 

 (parte mediana quam laterales fere duplo angustiori) ; 

 fronte crebre sat subtiliter punctulata; hac clypeoque 

 fere planum continuum emcientibus ; antennis 9-articu- 

 latis; prothorace quam longiori ut 9 ad 5 latiori, antice 

 minus angustato, supra subtiliter sat crebre nee profunde 

 punctulato (puncturis circite.r 26 in segmenti longitudine) , 

 lateribus (superne visis) sat rotundatis, angulis anticis 

 manifeste productis posticis (superne visis) rotundato- 

 obtusis, basi vix bisinuata, margine basali sat sequali ; 

 elytris subtiliter confertim nee profunde punctulatis 

 (trans elytron puncturis circiter 55), obsolete striatis ; 

 pygidio minus crebre minus subtiliter nee profunde 

 punctulato ; coxis posticis quam metasternum haud 

 brevioribus, quam segmentum ventrale 2 um multo 

 longioribus ; tarsorum posticorum articulo basali 2° longi- 

 tudine sat sequali ; unguiculis posticis elongatis appendi- 

 culatis, parte basali quam apicalis haud longiori. Long., 

 4 1. ; lat., 2£ I. 



The colouring of this species (entirely ferruginous except 

 black-brown elytra) if constant distinguishes it from nearly 

 all other Heteronyces. It is a member of my Group VIII., 

 and in the tabulation of the species of that group (Trans. 

 Roy. Soc, S.A., 1910, pp. 187, etc.) falls beside water- 

 housei, Blackb., from which it differs (besides colour) by, 

 inter alia, labrum (as in H. %anthot?'ichus, Blackb.) not hav- 



