132 Pliytopliaga Malay <ina. 



although compressed and dilated from base to apex, is narrower 

 and less distinctly triangular than in C. peregrinus ; the joints of 

 the club are rather longer and less transverse. The principal dif- 

 ferential character, however, exists in the depression below the 

 basilar space of the elytra, which is very distinct and well-defined 

 in the present species, but nearly obsolete or entirely absent in 

 peregrinus and allied species. 



37. Corynodes peregrinus, Fuessly. 



CryptocepJialus peregrhnis, Fues. Arch. Ins. p. 63, tab. xxiii. fig. 25. 



Eumolpus cyaneus, Oliv. Ent. vi. p. 899, pi. i. fig. 4, a, b. 



Elongato-ovatus aut subelongatus, convexus, metallico-caBru- 

 leus, nitidus ; thorace subconico, profunde subremote punc- 

 tato ; elytris infra basin non aut vix impressis, fortiter sub- 

 crebre punctatis, punctis seriatim, disci medio confuse dis- 

 positis ; antennis clava sat valde dilatata, nigro-purpurea. 



Var. A. Viridi-caeruleus. 



Long. 4| — G lin. 



Hab. Malacca (Tringanee), Siam, India. 



Head very coarsely and deeply punctured, front rugose and 

 irregularly excavated at its lower border, which is continuous 

 with the encarpse and apex of epistome ; surface of encarpae irre- 

 gular, impressed with a few large punctures ; epistome wedge- 

 shaped, more closely and finely punctured than the front ; an- 

 tennae more than half the length of the body, six outer joints 

 broadly dilated, the sixth to the eighth gradually increasing in 

 vidth ; the fourth and fifth joints also compressed, more or less 

 trigonate. Thorax subconic, scarcely broader at the base than 

 long, sides straight and slightly converging forwards, rounded, 

 and more quickly converging before the middle, hinder angles 

 acute ; surface very coarsely and deeply punctured. Elytra 

 coarsely and closely punctured, punctures near the suture and on 

 the outer border arranged in longitudinal rows, those on the 

 middle disk placed without order ; the transverse excavation 

 below the basilar space is either ill-defined or entirely absent ; 

 humeral callus scarcely prominent. 



The coarser punctation of the elytra, together with the more 

 parallel form, will separate this species from C. antennatus ; th.e 

 absence of the transverse depression on the elytra from C indi- 

 gaceus ; the thorax is usually more closely punctured than in either 

 species. 



