42 



once distinguishable from all the , preceding by its much more 

 sparsely and smoothly punctured head. In both the examples 

 before me there are two large faintly marked impressions between 

 the eyes, but this is probably not a constant character. F. 

 sparsiceps is also distinguishable from all the preceding except 

 hirticollis by its nine-jointed antennae, and from that species by 

 its considerably longer antennal club and the absence of erect 

 pilosity on the upper surface. 

 KS. Wales. 



ANACANTHOPUS (gen. nov. Sericoidarum). 



Mentum subangustum ; palpi labiales sat breves, articulo ultimo 

 minus elongato subovali ; palpi maxillares elongati, articulo 

 ultimo quam praecedens duplo longiori ; labrum parvum sed 

 distinctum, parum exstans, antice (superne visum) emar- 

 ginatum ; oculi modici sat nitidi, subtiliter granulati, antice 

 a cantho incisi ; antennae (speciei typicae) 9-articulatse, clava 

 3-articulata [hac maris (?) quam articuli 2-6 conjuncti vix 

 longiori] ; prothorax trans versus ; elytra striata (haud 

 geminatim) ; coxae posticae quam metasternum parum 

 breviores ; tibiae anticae extus bidentatae, posticis brevibus 

 ad apicem valde dilatatis spinoso-ciliatis (sed haud calcaribus 

 a ciliis distinctis armatis) certo adspectu bilobis ; unguiculi 

 simplices ; sterna breviter sparsim pilosa. 

 A very remarkable genus which I refer with much hesitation 

 to the Sericoides, The species described below has the facies of 

 a Dynastid, and I have not a specimen which I can aftbrd to 

 damage to the extent that would be necessary to examine its 

 abdominal stigmata, but its nine- join ted antennae justify me I 

 think in excluding it from the Dynastides. Assuming it to be a 

 Melolonthid there is nowhere to place it but in the Sericoides 

 from which I can find no structural character to separate it. 

 But wherever it be placed the remarkable structure of its hind 

 tibiae should make it easy to recognise. These are extremely 

 dilated at the apex where they bear a continuous fringe of strong 

 stout spines but nothing that can be distinguished from the rest 

 of these spines as being " apical spurs." It is to be noted that 

 its eyes are smaller and more distinctly granulated than in most 

 of the genera allied to Colpochila and Sericesthis, and thus ap- 

 proximate to the Caulobius type, but as they project laterally as 

 far as the clypeus I think the genus should be grouped with the 

 former two rather than the last-named. The evident resemblance 

 on facies to the next genus (Engyops) which is certainly a 

 Sericoid tends to confirm this in the place I have given it. I am 

 uncertain of the sex of the specimen before me but I do not think 

 that important since (from the analogy of allied genera) it is 



