SUPPLEMENT. 



The following notes and descriptions refer to insects which have been sent us during 

 the publication of this volume ; in a few cases to others which had been reserved for 

 further examination as being of doubtful location. 



ACROPTEKOXYS (p. 13). 

 Acropteroxys caudata (p. 13). 



To the Mexican locality given, add : — Chilpancingo in Guerrero {H. H. Smith). 



3. Acropteroxys acuminatus. 



Niger, capite prothoraceque parce punctatis, hoc oblongo, lateribus distincte marginatis ; elyfcris apicem versus 

 acuminatis, apicibus divaricatis, leviter striato-pimctatis, interstitiis punctulatis ; antennarum clava sex- 

 articula. Long. 7*5-8 millim. 



Hah. Mexico, Chilpancingo and Omilteme in Guerrero, 4600 to 8000 feet 

 (H. H. Smith). 



Head, thorax, and antennae black, the head and thorax deeply and rather sparsely 

 punctured. The antennae have the first four joints short, and scarcely longer than 

 wide ; the fifth joint is a little widened ; the sixth to the eleventh form a long and 

 lax club. The prosternum is transversely wrinkled, and impressed with scattered 

 coarse punctures, its process widened towards the tip and much depressed. The 

 metasternum is smooth, with a few dispersed small punctures. The prothorax is 

 oblong, but not so long as in A. gracilis ; its sides are sinuate, and its front angles more 

 depressed than in that species, and it hence appears more cylindrical. The elytra are 

 a little tumid near the base, and taper from thence to the apex, where they are slightly 

 divaricating ; they are also minutely denticulate, but the denticulation is only visible 

 under a very strong lens. 



This insect, of which only two specimens were obtained by Mr. Smith, diverges a 

 little from the type of the genus in which I place it, inasmuch as the antennae have 

 the last six joints nearly equally wide and the fifth joint also widened a little, so that 

 the club is very gradually formed. In the punctuation and colour it is very like 

 Ortholanguria elongata, but the general shape is more acuminate. 



