DR. F. LEUTHNEE ON THE ODONTOLABINI. 443 



small priodont specimens, in which they are likewise shining. Head apparently more 

 quadrate, and the sides straight ; the spine behind the eyes is oblique in large speci- 

 mens, and straight in small ones. The mandibles differ from 0. belUcosus in being 

 always more curved, and are more like those of 0. siva, but there are three basal teeth, 

 which are sometimes fused into two in large specimens ; in the amphiodont forms three 

 are distinctly visible. The {irosternal process is well developed, and projects strongly 

 HI front and beneath. The mesosternal process is enormously developed, even in the 

 smallest specimens, and projects strongly in front (as in 0. gradUs) ; front tibiie with 

 three spines above the terminal fork. 



Mandibles. 



1. Forma /Je/ocZow^a.— Mandibles longer than the head, slender, more curved than in 

 0. f/racilis and 0. beUicosiis, with four or five small apical teeth, strongly expanded 

 inwards at the base, with two or three obtuse teeth (fig. 6). 



2. Forma am^Modonta.—Uandihles similar to those of 0. belUcosus, with five apical 

 an'l three basal teeth (fig. 7). 



3. Forma 2Jriotlonta —UandMes as in 0. belUcosus, but the upper surface strongly 

 punctured (fig. 8). 



Female. Unknown. 



Habitat. Celebes and Sangir (in Herr van Lansberge's collection). 



Ileasurements. 



Total length. Head. Mandibles. Prothorax. Elytra, 



millim. millim. millim. miJlim. millim. 



Telodout . . j ' '' ^2''y23 26 13 by 25 32 by 23 



59 10 „ 18 17 11 „ 21-5 29 „ 21 



Amphiodont i 



9 ,. 16 13 11 „ 21 30 „ 2u 



6 " 12 7-5 8 „ 16 21 „ 16 



I first met with this interesting form, which I consider likely to prove a well-marked 

 local form of 0. bellicosns, in the Museum of the Jardin des Plantes in 1882, where it 

 was mixed with small specimens of 0. belUcosus. I subsequently received a large series 

 from Celebes and Sangir through the kindness of Herr \an Lansberge, whose MS. 

 name I have letained. 



7. Odontolabis aloes, Fabr. (Plate LXXXIX. figs. 1-7, 6 ; fig. 8, ? .) 

 cJ. Petiver, Hist. Nat. Gaz. pi. xlvii. fig. 15 (head). 

 Lucanus alces, Fabr. Syst. Ent. p. I. 



Lucanus alces, Oliv. Ent. i. (1) p. 8, pi. ii. fig. '6 a, b (reooguizable) . 

 Anoplocnemtis alces, p., Burni. Handb. d. Ent. v. p. 359. 



o T 



9 



