398 



If we, finally, try to refer the number of species to the area of 

 each region according as it is more or less known, the regions, ac- 

 cording to their respective richness of forms, will stand thus : — 



1. Australian region = 1 : 33,000. 



2. Neotropical region = 1 : 50,000. 



3. Indian region = 1 : 66,000. 



4. /Ethiopian region = 1 : 70,000. 



5. Nearctic region = 1 : 90,000. 



6. Palsearctic region = 1 : 250,000. 



2. Descriptions of Monohammus Bowringii, Batocera Una, 



AND OTHER LONGICORN CoLEOPTERA, APPARENTLY AS YET 

 UNRECORDED. By AdAM WHITE, ASSISTANT, ZoOL. DE- 

 PART. Brit. Mus. 



(Annulosa, PI. LIII.) 



One of the most interesting Beetles found by John Bowring, Esq. 

 in Hong-Kong is the very pretty species described below. Although 

 Mr. Bowring has been for nearly fifteen years in that Chinese Island, 

 and, as far as the management of immense commercial affairs would 

 allow him, has been an active collector, he has only twice seen this 

 curious Longicorn. It is somewhat allied to a small North Chinese 

 species (Monohatnmus luridus) described by Mr. Pascoe ; and to a 

 North Indian species (Monohammus melanosticticus, White), in 

 which there are five transverse bars of small black spots ; and to one 

 figured in • Linn. Trans.' vol. xviii. t. 40. f. 7. 



Insecti hujus nomen specificum est in honorem Domini Johannis 

 Bowring, amici descriptoris, in Sinica insula Hong-Kong degentis. 

 Valde amat Coleoptera. Collectio sua magnifica fere nationalis est. 



Monohammus bowringii, n. s. (PI. LIII. fig. 1.) 



M. breviusculus brevipilosus, pilis caput, thoracem, elytra cor- 

 pusque subtus tegentibus pallide viridibus, subceruginosis ; oculis 

 nigerrimis; thor ace supra nigro trimaculato ; elytris maculis 

 plurimis nigerrimis depilutis subquadratis in quatuor series 

 transversas ordinatis, basi, inter humerum nigrum et scutelhim 

 gibbere subverrucato nigro ; antennis nigris, articulis basi 2>ilis 

 brevibus ccerxdeis annularis, corpore subtus immaculato, pe- 

 dibits viridibus, tarsis tibiisque pilis ccerrdeis indutis. 



Long. lin. 7-8 1. 



Hub. Hong-Kong. 



Monohammus championi, n. s. (PI. LIII. fig. 2.) 



M. subelongatulus miniaceo-sanguineus brevipilosus ; thoracis 

 spina macula laterali strigaque media longitudinali nigerrimis ; 

 elytris sinyulis maculis 9-14 nigris pilosis disperse maculatis, 

 corpore subtus nigro in lateribus singulis miniaceo plagatis ; 

 antennis nigris, articulo primo (apice nigro excepto) miniaceo 



