140 EROTYLTDAE. 



ferential, the emargination of the eyes by a raised part 

 of its canthus is common to Triplatoma , and the elonga- 

 tion of the third joint of the antennae is a character com- 

 mon to a large portion of the genera of both Erotylidae 

 and allied families. The elongation of the first club-joint 

 does not hold good in C. multiguttatus. The antennae are 

 wanting in C. Wallacii. In M. Chapuis' description (as in 

 all long generic descriptions) the important differential cha- 

 racters are hurried among other generalities which rather 

 belong to the family, no object can be served by the repetition 

 of these in every genus in which they occur , although it is 

 of the highest importance to note the absence of any of these 

 family characters in any particular genus. The most impor- 

 tant points which Coptengis presents are the very cylin- 

 drical form , the very strongly raised and angular part of 

 the ocular canthus, on which the basal joint of the anten- 

 nae rests, the almost immarginate edge of the thorax, the 

 very narrow tarsi , the short metasternum , and the trun- 

 cate and often submucronate elytra. In these respects it 

 will be seen Euzostria differs by the canthus of the eye 

 not being raised , by the thorax not being cylindrical but 

 flatter above and with the front angles prominent , by the 

 elytra not truncate. It also presents important differences 

 in the head being received into the thorax as far as the 

 eyes , the femora are canaliculate , the metasternum is long. 

 The system of coloration of the unique species is very 

 peculiar, and allied to nothing I know in the Erotylidae. 



Euzostria ai^uensis^ n. sp. 



Elongata , subcylindrica , nitida ; capite nigro , crebre for- 

 titer punctato , antennis brevibus , validis , nigris ; prothorace 

 rufo-ferruginea , quadrato, parce subtiliter irregulariter punc- 

 tato ; elytris nigris , fascia lata mediana ad suturam paulo 

 constricta Isete flava , et apice sanguineo ; prosterni pro- 

 cessu, corpore subtus pedibusque nigris , abdominis segmen- 

 tis duobus apicalibus sanguineis. — Long. lO-^/g millim. 



Notes from tlie Leyden Miuseuixi , Vol. X. 



