Lucanoid Cvleoptera. 81 



ante medium, dentibusque duobus subapicalibus, in- 

 structee. Caput quadratum, margine antico emarginato, 

 angulis ante oculos obliquis. Prothorax transversus, 

 augulis posticis emarginatis, vix tuberculatis. Elytra 

 brevia, prothorace angustiora, angulo humerali spina 

 minuta instructo. Pedes nigri ; tibiis anticis spinis tribus 

 prope apices armatis, 4 posticis inermibus; tarsis ciliatis. 



Long. Corp. lin. 7; mandib. lin. 3. Mus. Saunders. 



Hab. — In Brasilia merid. apud fluvium Paranam. 



The slender cylindriform mandibles, the short and 

 narrow elytra, together with the entire absence of golden 

 pubescence on the scutellum, and on the anterior margin 

 of the prothorax, readily characterize this insect as being 

 distinct from any other allied species of the genus which 

 has at present fallen under my notice ; it is to be located 

 in the second section of the genus. 



I have been requested by Mons. Snellen van Vollen- 

 hoven, of Leyden, to submit to the Society upon the 

 present occasion, the description (accompanied by a 

 figure) of a new and interesting species belonging to the 

 genus Prosopocoilus. The insect in question is peculiarly 

 remarkable, as being the only one belonging to the 

 genus in which the coloration is found to be ceneous. 



Prosopocoilus Bosenheryii, Yollenh., n. s. PI. II. fig. 1. 



" P. seneus, nitidissimus, latus ; capite magno, impunc- 

 tato ; mandibulis forcipiformibus, intus serratis, apice 

 dentibus tribus divaricatis desinantibus ; dentibus illis, 

 antennis, palpis et tarsis, nigris." 



"Long. Hn. 28.^' 



"Hah. — Java, interior (?) ." 



" Body above and beneath, of a coppery-brass colour, 

 large and stout of dimension. Head broad, depressed, 

 deeply emarginate in front, not punctate, but of the 

 same colour as the thorax and elytra. Mandibles some- 

 what shaped like those of Pros, for cejjs, VolL, but elevated 

 towards their ends, concave at the outer side, with a 

 small interior tooth at the base, and four or five at the 

 end of the inner ridge ; the apex of each mandible is 



TRANS. ENT. SOC. 1872. — PART I. (APRIL.) G 



