210 HELOTA COSTATA VAR. 



var. stigma with the only exception that the fulvous stripe 

 in the black apical half of the elytra is wanting: it is 

 therefore intermediate between the typical costata and the 

 variety stigma. 



Helota semipurpurea, nov. spec. (ƒ. 



Strongly resembling Helota costata Rits. but proportio- 

 nately broader, the flattened lateral borders of the elytra 

 broader, the black apical half of the elytra with a dark 

 purplish in stead of a dark bronze hue, and quite distinct 

 by the hairy spot on the middle of the metasternum and 

 on that of the basal ventral segment in the male-sex. 



Length 16 mm. — Elongate; subshining; fulvous, with 

 the head and mandibles, a broad streak along the middle 

 of the pronotum, the scutellum and the apical half of the 

 elytra black, the latter with a dark purplish hue; the 

 fulvous basal half of the elytra shows a narrow black 

 stripe between the 3 rd and 4 th striae; moreover the base 

 of the pronotum and that of the elytra edged with black ; 

 the 5 or 6 basal joints of the antennae dark rufous, the 

 succeeding joints black ; the sides of the middle portion 

 of the prosternum, as well as the sides of the meso- and 

 metasternum bordered with black ; the legs are black, 

 with the coxae and the basal half of the femora beneath 

 fulvous ; the line of demarcation between the fulvous and 

 black colour on the elytra is regularly waved. 



Head strongly produced in front of the eyes, rather 

 remotely covered with strong punctures on the slightly 

 raised middle portion, more finely and closely punctured 

 near the eyes, very finely on the apical portion. 



Prothorax distinctly broader at the base than long, 

 narrowing in slightly convex lines to the front, anterior 

 angles slightly produced, rounded ; the base broadly bisi- 

 nuate, each sinuation divided into two smaller ones, median 

 lobe subtruucate, lateral angles acute. Upper surface very 

 coarsely and irregularly punctured, the punctures in the 

 black streak more remote, absent along the middle of the 



Notes from the Leyden Museum, Vol. XXV. 



