Longicornia Malayana. 159 



Dark cliesnut-brown ; head and scape with an ochreous pubes- 

 cence, varied with brown ; prothorax coarsely punctured, gla- 

 brous, the sides slightly rounded, the posterior angles straight 

 (or forming a right angle) ; scutellum rounded ; elytra coarsely 

 punctured, glabrous, except the truncated portion, which is 

 covered with a close yellowish pubescence, on each elytron four 

 slightly raised lines, the inner disappearing at about the middle ; 

 body beneath dark brown, legs paler, with a short greyish pile ; 

 antennae shorter than the body, slightly pubescent. 



Length 2| lines. 



Sthenias. 

 Slhenias, Laporte de Castelnau, Hist. Nat. des Insectes, ii. 466. 

 Caput antice subquadratum, tuberibus antenniferis validis, 

 elongatis, antice emarginatis, basi approximatis. Oculi mo- 

 dice emarginati. Antennce corpore breviores ; scapo sub- 

 cylindrico, vix elongato, leviter curvato ; articuHs tertio 

 quartoque longioribus ; caeteris gradatim attenuatis et multo 

 brevioribus. Maiidibiilce normales, extus curvatae. Palpi 

 articulo ultimo elongato-ovato. Prothorax capite hand latior, 

 aequalis, cylindricus. Elytra prothorace paulo latiora, cylin- 

 drica, convexa, humeris subprominentibus. Pedes breves, 

 robusti ; femora vix incrassata ; tarsi aequales, articulo ul- 

 timo tribus basalibus in unum aequali. Pro- et meso-sterna 

 declivia. 



The principal characters to distinguish Sthenias from its allies 

 are the strong antennary tubers and the slender curved scape. 

 The type is an old Fabrician species,* and with this must be placed 

 S. crocatus, Oliv., a Manillan insect, overlooked by M. de Castelnau, 

 but described by Mr. Newman as a new genus and species under 

 the name of Tkysanodes jucunda. These, 1 believe, are the only 

 true exponents of the genus known at present. The individual 

 described below is the only one in Mr. Wallace's Collection; it is 

 much darker than the Indian specimens. Two species described 

 by myself must be separated from the genus as here defined. "j" 



* I cannot reconcile it, however, with the Fabrician description of the 

 elytra, "basi tuberculis duobus elevatis." 



f Each of these will represent a distinct genus, which I briefly charac- 

 terize here, for comparison with Sthenias. The first is — 



Xynenon. 

 Capict antice breve, transversum, tuberibus antenniferis brevissimis. Oculi 

 subfront;iles. Antennts breves, incrassatae, obsolete articulatae ; scapo 



