Longicornia Malayana. 123 



abdominal segments with a ferruginous spot ; legs whitish, two 

 bands on the tibise and the last two joints of the tarsi dark brown ; 

 antennae with the tips of all the joints, except the first two, dark 

 brown. 



Length 5 lines. 



Samia diversa. 



S. fuscescente-pubescens, fusco- vel nigro-variegata ; elytris 

 apicem versus fasciis duabus interruptis albis. 



Hah. — Sarawak. 



Brownish pubescent, with dark-brown and white spots ; head 

 with indistinct brown lines in front and beneath the eyes ; palpi 

 fulvous ; prothorax with three distinct tuberosities on the disc, the 

 side shortly toothed anteriorly ; scutellum transverse, rounded 

 behind ; elytra irregularly punctured, principally at the base, 

 light brown, with a few dark brown or nearly black spots and 

 smaller spots of white which are so much more collected towards 

 the apex as to form two incomplete bands ; body beneath yellow- 

 ish-brown with a sparse greyish pile, each of the first four 

 abdominal segments with a darker spot on each side ; legs and 

 antennae obscurely ringed with light and dark brown. 



Length 6 lines. 



Agelasta. 

 Agelasta, Newman, The Entom. i. 288. 

 Caput antice transversum, infra. oculos haud dilatatum, fronte 

 convexa, tuberibus antenniferis fere obsoletis. Oculi me- 

 diocres, fere divisi. Antenncs 11-articulatae, rarissime in 

 maribus 12-articulat3e, corpore breviores vel longiores, basi 

 valde distantes ; scapo subcylindrico, aut articulo tertio brevi- 

 ore, aut saepius longiore (in typo A. transversa fere aequali); 

 caeteris gradatim decrescentibus. Mandibulce validae. Pro- 

 thorax transversus, disco regulari, lateribus rotundatus et 

 basin versus sensim latior. Elytra subtrigonata, regularia, 

 apice integra. Pedes inaequales, antici longiores ; protibice 

 curvatae, intermediae integrae ; tarsi breves, articulis tribus 

 primis transversis, in maribus aliquando fimbriatis. Pro- 

 sternum elevatum. Mesosternuin antice dilatatum et paulo 

 productum. 

 The type of this genus is a Manillan insect {A. transversa^, 

 described with two other species by Mr. Newman in 1842. Mr. 

 Wallace's researches have added nine more to the list, of which 

 five have been described by Mr. White, and another by myself. 



