﻿of Lucanoid Coleoptera. 13 



Odontolabis VoLLENHOvii ^ , Parry (var. max., ? ignota). 

 (PI. VIII. fig. 1.) 

 Lacordairci, Id., MS. olim. 

 O.atro-fiiscus; elytris laevissimis,flavis, angustenigro-marginatis, 

 sutura latins nigra ; capite magno, lateribus supra densissime 

 rugosis, margine antice reflexo emarginato, plaga magna rufa 

 notato, mandibulis capite fere duplo longioribus, rugoso- 

 punctatis, apicibus furcatis interne denticulatis, et dente forti 

 ante medium instructis ; tibiis anticis in medio obsolete uni- 

 dentatis, posticis quatuor inermibus. 

 Long. Corp. (mandib. incl.) unc. 2, lin. 9. 

 Hab. Borneo. Specimen unicum in Coll. Parry. 

 I had originally named the above species after my distinguished 

 friend Professor Lacordaire, whose reputation as an Entomologist 

 is so universal that I need scarcely allude to it. M. Snellen van 

 Vollenhoven, having received from Sumatra a closely-allied species, 

 and being under the impression that it was identical with the abov-e, 

 courteously retained my MS. name in his description of the 

 Sumatran species (vid. Tijd, v. Ent. iv. 104, tab. v. fig. 1.) 



The two are, however, totally distinct, and I have great pleasure 

 in dedicating this fine species to a gentleman who has rendered 

 such important services to science as Director of the museum of 

 Leyden, and to whom I feel grateful for his kind attention when 

 recently there. 



O. Vollenhomi has the facies of the preceding genus Hexar- 

 thrius, forming the connecting link between the two genera. It 

 differs from O. Lacordairei in the following particulars — the 

 mandibles are more robust, more convex, and more strongly 

 punctuated ; the head is in proportion larger, with the anterior 

 elevated margin slightly sinuated in the centre, and the angle 

 behind the eye is more obtuse ; but the principal difference is to 

 be found in the prothorax, which is considerably narrower, with 

 the sides rectangular instead of being dilated, and the posterior 

 angles strongly emarginate ; the body is also somewhat shorter. 



Odontolabis Ludekingii, Voll. (PI. II. fig. 1.) 

 Lucanus Ludekingii, Voll. Tijd. v. Ent. iv. 104, tab. v. f. 2. 

 O. ater ; capite latissimo, in lateribus punctatissimo, fronte 



transversim carinata; elytris laBvissirais testaceis, sutura latius 



et limbo externo anguste nigris. 

 Long. Corp. (mandib. incl.) 2g unc. 

 Hab. Sumatra. Coll. Mus. Lugdun,, de Castelnau, Mniszech 



et Parry, 



