34 



K.K. Front of clypeus with sharp lateral 



angles, its sides straight... ... Sciton 



K.K.K. Front of clypeus emarginate ... Byrrhomorpha. 

 J.J. Labrum entirely confused with vertical 



front face of clypeus ... ... Dysphanocheila. 



I.I. Tarsal joints each with an isolated tuft of 



long soft hairs beneath ... ... Ocnodus 



H.H. The faces of the joints of the antennal 



club clothed with erect setae ... ... Diphyllocera. 



G G. Front tibiae excessively dilated and sinuous 



(not dentate) externally ... ... Pachygastra. 



F.F. Eyes smaller, and more distinctly granulate ; 

 surpassed by clypeus. 

 G. Front tibiae not having a tooth close to the base 



externally ... ... ... ... Haplopsis. 



G.G. Front tibiae with a minute tooth close to 



the base externally ... ... ... Caulohms. 



C.C. Apterous species ... ... ... ... Callabonica. 



B.B. Claws bifid or appendiculate. 

 C. Apterous species ... ... ... ... Pseudoheteronyx. 



C.C. Winged species. 

 D. Antennae with more than 7 joints. 

 E. Tarsi of male normal. 

 F. Form strongly depressed ... ... ... Eurychdus. 



F.F. Form notably more convex ... ... Heteronyx. 



E.E. Anterior four tarsi of male strongly dilated... Neoheteronyx. 

 D.D. Antennae with only 7 joints ... .. Nepytis. 



A. A. Prosternal sutures open to receive the antennas . . , Mcechidius. 



ANEUCOMIDES (gen. nov. SericoidarumJ. 



Mentum antice emarginatum ; palpi labiales breves, articulo 

 ultimo breviter conico quam praecedens parum longiori ; 

 palpi maxil lares sat elongati, articulo ultimo quam prgecedens 

 sat longiori ; labrum modice exstans, antice late rotundatum 

 (superne visum) ; oculi sat magni nitidi vix manifeste granu- 

 lati, antice a cantho profunde incisi ; antennae (speciei 

 typicae) 9-articulat8e, clava 4-articulata (hac maris quam 

 articuli praecedentes conjuncti parum breviori, feminge baud 

 observatse); prothorax transversus ; elytra geminato-striata; 

 tibise anticse extus S-dentatse, posticis perbrevibus ad apicem 

 valde dilatatis ; unguiculi simplices ; sterna femoraque 

 pilosa. 



The species for which I propose this new generic name is an 

 extremely puzzling one. Its facies is strongly suggestive of a 

 small Dynastid of the Oryctomorphid group, but its abdominal 

 stigmata are decidedly those of a Melolonthid, its antennal struc- 

 ture moreover being quite inconsistent with the idea of a 

 Dynastid. It is a short robust insect with hind femora and tibiae 

 very short and incrassate, and bears no resemblance in facies to 

 any other Melolonthid known to me. Nevertheless, I have failed 

 to discover any structural character that I can rely upon to dis- 



