of species of Lucanidoi. 359 



The scales on the pronotum form seven more decided 

 patches. 



Hetcrochthes Andamanensis. (PI. III. fig. 2.) 



Latus, niger, elytris nitidis Ifevibus, capite prothoracis 

 latitudine, mandibulis capite dimidio longioribns, prope 

 basin arciiatis, dentc apicali incurve, tubercnloque minnto 

 subapicali armatis; oculis septo omnino divisis, occipite 

 in medio postice impressione parva oblonga notato ; tibiis 

 anticis extns 5-6-dentatis ; 4 posticis extus in medio iner- 

 miljus, prosterno in medio longitndinaliter canaHculato. 



Long. corp. lin. 17 ; mandib. lin. 6^. 



Habitat ins. Andamanenses. In Mus. Parry. 



In its general character this insect approaches nearest 

 to Heterochthes brachypterus (Trans. Ent. Soc, 3rd Ser., 

 vol. ii.* pi. xi. fig. 1), but differs in its wider and more 

 flattened form, with the head not wider than the prothorax 

 and the elytra flatter and more cordate in form. The head 

 and thorax are black, scarcely shining, and impunctate 

 except at the sides, where the punctures become gradually 

 more distinct and coarse ; the front margin of the head is 

 gradually depressed and not elevated as in //. hracliypterus; 

 the sides of the head, behind the eyes, have a rounded 

 tubercle, and in the centre near the hind margin is an oval 

 depression. The elytra are black, glossy, and under a 

 high lens are seen to be finely punctiu-ed ; their lateral 

 margins are recurved. On the underside the head is 

 strongly and the jugulum finely punctured. The anterior 

 tibiffi are five-toothed on their outer edge, and the four 

 posterior tibiae short, unarmed and setose. The prostcrnum 

 (which in //. hracliypterus is convex in the centre, Avith a 

 longitudinal impressed line on each side) is here marked 

 in the centre with two irregular longitudinal impressions. 



Leptinopter us f rater nus. (PI. III. fig. 3.) 



Niger, subnitidus, capite magno piano, antice emarginato, 

 postice in medio impresso et utrinque spatio glabro punc- 

 tato notato, pronoti angulis posticis oblique truncatis, disco 

 crebre punctato, punctis setigeris ; scutcllo nigro, nudo ; 

 elytris luteo-rufis, unicoloribus. 



* Plates XI. and XII are inisleHeved Vol. I. instead of Vol. II. 



