104 Phytoj)hoga Malayana. 



and somewhat closely punctured. Elytra broader than the thorax, 

 broadly oblong, sides nearly parallel, apex rounded ; above con- 

 vex, each elytron excavated below the basilar space and within 

 the humeral callus ; the latter in the (^moderately prominent, in 

 the $ it is raised into a short longitudinal ridge. The $ also 

 differs from the $ in the following characters : parallel to the 

 lateral border is a longitudinal ridge, the basal portion of which is 

 broken up into a number of small tubercles ; on the hinder disk it 

 is lost in the general surface of the elytron, with the exception of 

 the extreme apex, where may be seen the traces of an obtuse 

 tubercle ; the surface on the inner side of the ridge is longitudi- 

 nally excavated along the anterior two-thirds of its course ; the 

 depression surrounding the base and outer border of the basilar 

 space is more deeply excavated than in the $ ; on the anterior 

 half of the outer disk are a number of irregular tubercles, which 

 vary in number in different individuals ; three or four of these 

 are arranged in a longitudinal ridge, which, commencing at the 

 humeral callus, runs for a short distance along the inner border 

 of the longitudinal excavation. 



Broader and shorter than C aureipennis {ante, p. 102), the an- 

 tennae more slender, elytra in the $ more strongly tuberculated. 



b. Elytra not tuberculate in either sex.* 

 5. Corynodes rohustus, Baly. 

 Platycoryrius rohustus, Baly, Desc. New Gen. and Spec. Phyt. p. 3. 

 Oblongus, convexus, metallico-cseruleus, viridi vix tinctus ; 

 thorace longitudine vix latiori, antice subconico, subcrebre 

 punctato ; elytris infra basin sat profunde transversim ex- 

 cavatis, tenuiter subseriatim punctatis ; antennis clava valde 

 dilatata, obscure purpurea ; frontis margine inferior! obtuse 

 angulato, utrinque sinuato, angulis lateralibus distinctis. $. 

 Long. 5 lin. 

 Hab. Sumatra. 



Face coarsely and irregularly punctured, somewhat swollen 

 on the front, impressed in the middle with the usual longitudinal 

 groove ; anterior margin separated from the epistome and en- 

 carpse by a sutural groove, very obtusely angled, the apex scarcely 

 j)roduced, lightly sinuate on either side, lateral angles distinct ; 

 epistome scarcely broader than long, wedge-shaped, its apex 

 truncate, surface rugose-punctate; antennae nearly equal to the 



* The subhumeral tubercle excepted. 



