590 Rev. F. W. Hore on some Nondescript Insects from Assam. 
attenuata. Corpus infra nigro-piceum, pectore rufescenti. Pedes femo- 
ribus rubro-corallinis, tibiis medio dente armatis, tarsis piceis, plantis 
infrà auricomis. 
The above insect is named bulbosus from the heads of the teeth of the man- 
dibles being rounded, a peculiarity I have not observed in any other of the 
Lucanide: it was taken by Dr. Cantor in Assam, and is found also in the 
Burmese territories. 
Spec. 6. LUCANUS ASTACOIDES. 
Long. unc. l, lin. 3. Lat. lin. 4. 
Castaneus ; antennis nigris, mandibulis exsertis intüs basi denticulatis denti- 
culis nigricantibus, apicibus acutis. 
Caput suprà castaneum, vertice bituberculato. Thorax concolor, utrinque 
nigro-punctatus, elytris capiteque latior, margine omni elevato. Scutellum 
nigrum. Elytra castanea, marginibus tenuissimis suturáque nigris. Cor- 
pus infrà 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. unc. 2. Lat. lin. 6. 
Castaneus; mandibulis valdè exsertis, apicibus acutis, dente ferè medio for- 
tiori, aliisque 4 zequalibus ante apicem positis. 
Caput atro-piceum, dentibus binis in vertice prominentibus, fovea inter dentes 
fortiter excavatà. Thorax punctulatus, margine undique elevato. Elytra 
castanea, marginibus tenuissimis suturáque nigris. Corpus infrà rubro- 
piceum, femoribus rubro-corallinis, tibiis concoloribus et medio uniden- 
tatis tarsisque nigris. Femina adhuc mihi ignota. 
The above species appears to be tolerably abundant in Assam, as there are 
several specimens in Mr. Griffith’s collection; some of the individuals vary 
greatly in size, presenting also different shades of a light and dark mahogany 
colour. Lucanus pallidipennis and L. confusus, Hope, both from the island of 
Java, appear to be closely allied to the present species. 
