r 



DR. F. LEUTHXER OX THE ODOXTOLABINI. iVJ 



Measurements. 



Totr.1 length. Head, 



milliin. millim. 



Parry (telodont) 82 16-0 by 28 



„ (mesodont) 62 12-0 „ 23 



'j Lansberge (amphiodont) . . 63 10-5 „ 21 



I Parry (amphiodont) 51 11-0 „ 18 



2 47 8-0 „ 15 



10. Odontolabis duivenbodii, Deyr. (Plate XC. figs. 5-8, rf; 9,5.) 



(J . Odontoluhis duivenbodU, H. Deyrolle, Auu. Soc. Ent. Belg. ix. p. 25, pi. i. fig. 1 (very 



accurate figure). 

 cJ . Odontolabis diiivcnbodii, Parry, Trans. Ent. Soc. Loud. 1870, p. 5G. 

 ? . Odontolabis didvenbodi, R. Oberthiii-, Ann. Mus. Geneva, xiv. p. 5GG. 



Male. Very like 0. stevensi. Chestnut-brown ; head and mandibles darker brown. 

 Head agreeing with 0. stevensi in form and sculpture ; prothorax reddish brown, nar- 

 rower, the sides straighter, middle spine rounded off; mandibles more variable than in 

 0. stevensi; elytra flattened, tricolorous, outer margin j'ellow, followed by a narrow 

 black stripe from the shoulder to the tip, and the space between this and the suture is 

 reddish brown; rim of the elytra beneath black; front tibiae long and straight, with 

 two or three spines above the terminal fork. 



Mandibles. 



1. Forma tehdonta (fig. 5). — Mandibles as long as the head and prothorax together, 

 long and slender, with only two or three very small apical teeth. Epistoma broad, 

 triangular. 



2. Forma mesodonta. — [a) Mandibles as above, with a ratlier long tooth beyond the 

 middle (fig. 6); [h) Mandibles with two well-developed middle teetli (var. bidentata) 

 (fig- 7). 



3. Forma aiyij/hiodouta. — Mandibles hardly as long as the head, broad, strongly 

 curved, with five apical teeth and an obtuse basal tooth. 



4. Forma priodonta. — Mandibles broad, scissors-shaped, with eight or nine irregular 

 teeth on the inner side. Epistoma triangular (fig. 8). 



Female. Very like that of 0. stevensi; brown, except the elytra. Ileiid as in 

 0. stevensi; prothorax likewise of similar form, but conspicuously narrower; elytra 

 tricolorous, the intermediate stripe, which is black outside and brown inside, begins at 

 the shoulder, and narrows gradually to the tip ; under-surface uniform dark rust- 

 brown ; front tibiffi as in 0. stevensi, but not so broad, with three or four very small 

 spines above the terminal fork ; four hinder tibiae straighter. 



Number of specimens examined : ten males and five females. 



Habitat. Sangir. 

 VOL. XI. — p.vKT XI. No. 9. — November, ]885. 3u 



