590 Rev. F. W. Hope on some Xoiidescript Insects from ^-Issam. 



attenuata. Corpus infra nigro-piccuin, pectore rufescenti. Pedes femo- 

 ribus rubro-corallinis, tibiis medio dente armatis, tarsis piceis, plantis 

 infra auiicoinis. 



The above insect is named bnlbosiis from the heads of the teetli of the man- 

 dibles being ronnded, a pecnliurity I have not observed in any other of the 

 Lucan'idce: it was taken by Dr. Cantor in Assam, and is found also in the 

 Burmese territories. 



Spec. 6. LucANUs astacoides. 



Long. une. 1, lin. o. Lat. lin. 4. 



Castaneus ; antennis nigris, mandibulis e.xsertis intiis basi denticulatis denti- 

 culis nigricantibus, apicibus acutis. 



Caput supra castaneum, vertice bituberculato. Thorax concolor, utrinque 

 nigro-pnnctatus, clytris capiteque latior, margine omni elevato. Scutellum 

 nigrum. Eli/tra castanea, marginibus tenuissimis suturâqne nigris. Cor- 

 pus infra rubro-piceum, pedibus concoloribus, tibiis quatuor posterioribus 

 medio denticulatis tarsis chelisque nigris. 



I have named the above species astacoides, as its mandibles resemble closely 

 the claws of a lobster. 



Spec. 7- LuCANUS FOVEATUS. 



Long. une. 2. Lat. lin. G. 



Castaneus; mandibulis valde e.xstrtis, apicibus acutis, dente ferè medio for- 

 tiori, aliisque 4 œqualibus ante apicem positis. 



Caput atro-piceum, dentibus binis in vertice prominentibus, fovea inter dentés 

 fortitèr excavatâ. Tlwrax punctulatus, margine un(rK[ue elevato. Elytra 

 castanea, nuirginibus tenuissimis suturfique nigris. Corpus infra rubro- 

 piceum, femoribus rubro-corallinis, tibiis concoloribus et medio uniden- 

 tatis tarsisque nigris. Fain'ma adhuc mihi ignota. 



The above species appears to be tolerably abundant in Assam, as there are 

 several specimens in Mr. Grifiith's collection ; some of the individuals vary 

 greatly in size, presenting also different shades of a liglit and dark mahogany 

 colour. Lucanus pal/ldipeuais and L. confusus, Hope, both from the island of 

 Java, appear to I)e closely allied to tiie present species. 



