/|/|/| MARTIN JACOBY 



N. rijitiiipt'inns, Jac. in the entirely fulvous ?mtennae and the 

 Havous apex of the elytni, from S. apkalis, Baly in the bright 

 bhie not l)lack elytra and the closely and extremely minutely 

 punctured thorax , from S. ajncipennis, Baly in the fulvous la- 

 l)runi and antennae as v\-ell as in the l)lue colour of the elytra, 

 in N. Boj'carii, Jac. likewise from Sumatra , the thorax is more 

 distinctly punctureil and the elytra are blackish and the breast 

 fulvous. 



Weise has separated certain species from Malacca and Sumatra 

 from Arijopus (Insecten Di^utschlands) and proposed the name of 

 Diinax for those in which the antennae are widely separated 

 and the structure of the head is said to differ. I fail however 

 to see the necessity for the erection of another genus and these 

 Eastern species may well 1)e included in Sphaeroderma. In Ar- 

 gopiis Ahrensi for example , the antennae are quite as widely 

 separated and intermediate degrees amongst the exotic species 

 are frequent in almost all structural details, so that a new genus 

 might be equally well established on almost every species , 

 nothing is constant or gained in separating species on slight 

 differences and erect continually new genera on variable struc- 

 tural charactors. 



87. Sphaeroderma fiavoplagiata, n. sj). — Reddish-fulvous, an- 

 tennae (the basal joints excepted) black, thorax very finely and 

 subremotely punctured, elytra closely and semiregularly punc- 

 turei, black, the extreme apex fulvous, a large ovate patch on 

 the disc, lla\'ous. 



Length I Vo ^i^^. 



Head impunctote, the frontal idevations acutely raised, narrow; 

 clypeus detlexed, labrum and mandibles prominent, penultimate 

 joint of the palpi, incrassate, antennae extending to the middle 

 of the elytra, black, the lower tliree Joints and the e.xtreme 

 apex of the terminal one, fulvous, third joint slightly shorter 

 than the second, following joints rather robust, pubescent, much 

 longer than bmad, thorax rallier more than twice as broad as 

 long, widened at the middle, the sides nearly straight, anterior 

 margins obli(|uely thickened, }>osterior margin with the meilian 



