Mr. G. J. Arrow on Lamellicorn Beetles. 39j 



one of the spurs (and occasionally two) has a similar struc- 

 ture. The front tibial spur is not absent, as stated by 

 Mr. Semenow, but is slender and inconspicuous. 



Herr Carl Felsche lias sent me a pair of a new and peculiar 

 insect of this subfamily for which it seems necessary to form 

 a new genus. It is an Orphnu^ with certain peculiarities 

 which separate it sharply from all others. Chief of these is 

 the shape of the mandibles, which have an abrupt lateral 

 angulation and are nearly straight in front and at the side, 

 whereas in Orphnus \.\\Qy avo. always regularly rounded exter- 

 nally. The transverse carina upon the head of the female is 

 also characteristic, as is the form of the thorax of the male. 

 This is formed very much as in many small species of Copris. 

 It is not excavated in the middle, but very convex, armed 

 \Yith four conical processes and almost vertically truncated in 

 front. 



I propose to call the genus 



GoNiORPHNUS, gen. nov. 



Corpus crassum, convexum. Mandibiila extus rectangula lateraliter 

 et antice fere recta, angulo sat acuto, paulo recurvo. Clypeus 

 brevis, late arcuatus, lateribus obtuse angulatis, paulo recurvatis. 



6 , clypeus antice cornu gracili, marginali arraatus ; pronotum 

 antice trunoatum, baud excavatum. 



2 , clypeus muticus, a fronte carina lata, acute elevata, divisus. 



Alia ut in genere Orphno. 



Goniorphnus felschei, sp. n. 



Niger vel nigro-piceus, nitidus, convexus, latus ; prothorace toto 

 marginato, utriuque grosse sat parce punctato ; elytris laevibus, 

 disco leviter sulcato, sulcis hand profunda irregulariter annulato- 

 punctatis, extus irregulariter fere rugose punctatis ; tibiis auticis 

 fortiter tridentatis : 



(S , capite impunctato, margine antico cornu gracili erecto paulo 

 deplanato, baud acuminato, munito ; prothorace politissimo, 

 lateribus grosse punctatis, dorso convexo, dentibus 4 validis, 

 conicis, fere jequidistantibns, oblique antrorsum directis, serie 

 transverse munito, antice medio fere perpendiculariter retuso, 

 utrinque paulo excavato : 



$ , clypeo indistincte punctulato, a froute carina lata paulo arcuata 

 divisa, vertice sat crebre transverse punctato ; prothorace sub- 

 tiliter punctulato, punctis majoribus lateralibus nonnuUisque 

 medianis sparsuto. 



Long. 10-11'5 mm. ; lat. max. 5-6 mm. 



Bab. French Congo : Kuilu (Mocqneri/s, 1892). 



26* 



