360 Mr. J. O. Westwood's Illustrations 



Long. Corp. masc. lin. 12; foem. lln. 8; mand. maris 

 lin. 7. 



Habitat in Brasilia. In Mus. Parrj. 



This species is closely allied to L. poh/odontus, but is 

 slightly smaller and is at once distinguished by the flat 

 and thin mandibles of male, the glabrous granulated patch 

 on each side of the hind part of the head, the naked 

 scutellum, and the uniform colour of the elytra. The 

 mandibles of the male have a truncate tooth near the base 

 of the inner edge, followed by a small tubercle ; at one- 

 third of their length is a small conical tooth, and at two- 

 thirds of their length is a larger tooth, preceded by a 

 minute tubercle, and followed by four small teeth on the 

 right-hand mandible and by five sinnilar ones on the left 

 mandible. The head of the male has a distinct depression, 

 acuminated behind ; in the middle of the hind part, and 

 on each side of this towards the posterior lateral angles of 

 the head, is a shining, coarsely granulated space, the re- 

 mainder of the head being very delicately granulated. The 

 prothorax is slightly glossy on its upper side, covered with 

 minute punctui*es, and the posterior angles are more 

 obliquely truncate than in L. polyudontus. The elytra 

 are also very delicately punctm'ed, and on each, Avith a 

 lens, are to be observed six or seven very delicate longi- 

 tudinal strice. The anterior tibire are serrated, the three 

 or four terminal teeth beino^ the larg-est. The middle 

 tibiffi have a minute spine in the middle of the outer edge. 

 The scutellum is naked and black. 



The female is more shining than that of L.poli/odontus, 

 Avith larger punctures, especially on the pronotum, Avhich 

 is black and destitute of the slight metallic reflexion seen in 

 that species. The scutellum is naked as in the male, and 

 the elytra have the suture slenderly marked with black ; 

 the punctures of the elytra are more decidedly visible 

 than in the male, and they are marked with five longi- 

 tudinal strife as in that sex. 



Odontolahis striatus, var. (PI. III. fig. 4.) 



Deyrolle, Ann. Soc. Ent. France, 4 Ser. t. iv. 18G4, 

 plate 4, fig. 3. 



The insect here represented is regarded by Major PaiTy 

 as an extreme development of O. striatus. It is from 



