156 Longicornia Malayana. 



breviores; scapo subobconico ; articulis quatuor sequentibus 

 incrassatis ; tertio praecedentibus mu]to longiori ; quarto et 

 quinto brevioribus, subito decrescentibus; caeteris brevissi- 

 niis, aequalibus. Prothorax capite vix latior, subquadratus, 

 regularis. Elytra subplanata, basi latiora, humeris baud 

 productis. Pedes mediocres ; femora sublinearia; tih'ice 

 rectae ; tarsi subtriangulares. Pro- et meso-sterna declivia. 



The general appearance of this insect is very similar to Calym- 

 niopliis Jlavo-varieguta, Thorns, (one of the Mesosince), but the head 

 in that genus is very different, and somewhat resembles the 

 OnocephalincB, L e. the antennary tubers approximate and have an 

 upward direction. Dymascus is very distinct from anything 

 known to me. 



Dymascus porosus. (PI. VIII. fig. 7.) 



D. fusco-pubescens ; prothorace linea mediana, elytrisque linea 

 suturali antica maculisque ochraceo-griseis. 



Hab. — Si ngapore. 



Pubescent, dark brown, the whole upper surface vj'ith numerous 

 punctures ; head with coarse greyish and brown hairs ; prothorax 

 about equal in length and breadth, the sides slightly round, a 

 narrow central longitudinal line, and a broader one on each side, 

 yellowish-grey; suture greyish, transverse; elytra broader than the 

 prothorax, the sides slightly rounded, each apex somewhat trun- 

 cate, the suture marked at the base with yellowish-grey continuous 

 with the line on the prothorax, at about the middle of each 

 elytron a semicircular spot, another towards the apex, and exter- 

 nally to the latter a large and more distinct round spot connected 

 with an oblong patch at the side ; body beneath and legs reddish- 

 brown, with a thin grey pile, but much thicker and greyer on the 

 tibiae and tarsi ; antennae with the five thickened basal joints dark 

 brown covered with short hairs, the rest pale grey, becoming 

 darker again towards the tip. 



Length 5 lines. 



ZoRILISPE. 



Caput antice transversum, tuberibus antenniferis brcvibus. 

 OcuU magni, prominuli, supra subapproximati, infra dis- 

 tantes. Antennee suhWnenres, corpore paulo longiores; scapo 

 subelongato; articulo tertio subaequali ; caeteris paulo decres- 

 centibus, vel fere asqualibus. Prothorax cyh'ndricus, regu- 

 laris, capiti latitudine aeqnalis. Elytra elongata, cylindrica, 

 prothorace vix latiora, apicem versus normalia. Pedes bre- 



