358 Longicornia Malayana . 



Chreonoma. 

 Caput et oculi ut in Astathe. Anlennce corpore breviores, 

 basi distantes ; scapo breviusculo, apicem versus crassiore ; 

 articulo seciindo paulo elongate ; tertio stepissime scapo 

 longiore ; quarto et quinto tertio longioribus ; caeteris 

 brevibus. Prothorax in medio subcallosus, lateribus paulo 

 tumidus, basi fere rectus. Elytra baud carinata. saepe bre- 

 viuscula, parallela vel postice paulo latiora, lateribus nullo 

 modo dilatatis. Pedes ut in Astathe. Prosternum demis- 

 sum, angustissimum. Mesosternum angustatum, declive. 

 Mctasternum liberum. 

 Of the two species of Plaxomicrns (potius Placomicrus) origin- 

 ally described by M. J. Thomson (Arch. Ent. i. 57) one may 

 be referred to Chreonoitia ; the other — P. tlltpticus — standing as 

 the type, according to the author's latest arrangement in his 

 '' Systema." M. Thomson, however, sinks his name as a synonym 

 of M. Chevrolat's Astathes Fortunei, of which I cannot find any pub- 

 lished description. I cannot help thinking that there is a mistake 

 here, and that the two are perfectly distinct, the latter belonging 

 to the present genus. The species described below are all of 

 small size compared with Astathes, and are sparsely clothed above 

 with short erect hairs, each issuing from a puncture in the derm ; 

 the elytra are generally punctured at the base only, the punctures 

 nearly disappearing or becoming smaller towards the apex ; the 

 scutellum fits so closely to the elytra as to be made out with dif- 

 ficulty ; the second joint of the antennae, generally so very short, 

 is here, as in Cyanastus, two or three times longer than its dia- 

 meter. 



Chreonoma venusta. (PI. XVI. fig. 1.) 



C. fulva; elytris nigro-purpureis, basi apiceque exceptis ; an- 

 tennis infuscatis. 



Hab. — Batchian. 



Fulvous, shining; elytra dark purple, the base and apex ex- 

 cepted ; head and prothorax with small scattered piligerous punc- 

 tures ; scutellum triangular, indistinct ; elytra clothed with nu- 

 merous greyish hairs, coarsely punctured at the base, the dark 

 purple band occupying the posterior three-fourths except the 

 apex ; legs and under surface yellowish, hairy ; antennse blackisli, 

 except the under surface of the first four or five joints, which are 

 yellowish. 



Length 4^ lines. 



