120 HELOTA TONKINENSIS. 



(mostly longitudinal) and arranged in four longitudinal rows. 

 The colour of the upper surface is dark bronze, here and 

 there with coppery red tinges; the two basal joints and 

 the club of the antennae ferruginous, with the apex of the 

 joints infuscate, the remaining joints dark pitchy ; two pairs 

 of small convex yellow spots on the elytra, the anterior 

 pair circular, the posterior pair longitudinal ovate. ■ — Under 

 surface and elytral epipleurae dark bronze, the abdomen 

 rufous brown; of the legs the coxae, the apex of the femora, 

 the base and apex of the tibiae, and the tarsi are dark 

 bronze or pitchy, the rest rufous brown ; the knees have 

 a coppery red hue. 



The head is considerably produced in front of the eyes, 

 coarsely and densely punctured, the punctures on the nar- 

 rowed front portion much finer; on the disk between the 

 eyes two slightly raised longitudinal streaks which are 

 somewhat divergent towards the front margin. 



The prothorax broader at the base than long, slightly 

 narrowing in faintly convex lines towards the front, the 

 anterior angles protruding; the lateral margins very dis- 

 tinctly crenulate, each of them with 12 — 14 crenulations ; 

 the base bisinuate with the lateral angles acute ; the median 

 lobe truncate. The upper surface rugose in consequence of 

 the coarse and very dense punctuation and provided with 

 the usual elevations which are densely and very coarsely 

 punctured. The scutellum is small, strongly transverse and 

 impunctate. 



Elytra elongate ovate, the apices conjointly rounded in 

 the cT, prolonged and acutely pointed in the Q, slightly 

 dehiscent at the suture; the lateral margins minutely and 

 irregularly serrulate, more distinctly so towards the end in 

 the cT 5 the upper surface of each elytron provided, besides 

 with the two convex yellow spots, with four rows of elon- 

 gate glossy tubercles : the first of these rows is continued 

 down to the extreme apex, the second row contains the 

 yellow spots, the tubercles of the 3 rd and 4* row are 

 narrower, and the 4 th row touches the apical margin ; the 



Notes from the Leyden Museum, Vol. XXV. 



