208 HELOTA COSTATA. 



basal joints of the antennae dark rufous, the succeeding 

 joints black; the anterior margin and the sides of the 

 middle portion of the prosternum, as well as the sides of 

 the meso- and metasternum bordered with black; the legs 

 black, with the coxae, the base of the femora and that 

 of the claws fulvous. 



Head strongly produced in front of the eyes, rather 

 remotely covered with strong punctures on the slightly 

 raised middle portion, closely punctured near the eyes, 

 very finely on the narrowed front portion. 



Prothorax distinctly broader at the base than long, 

 narrowing in straight or slightly convex lines to the front, 

 anterior angles produced, narrowly rounded ; the base 

 broadly bisinuate, each sinuation divided into two smaller 

 ones, median lobe subtruncate, the lateral angles acute. 

 Upper surface coarsely punctured in the fulvous lateral 

 portions, leaving however an elongate raised spot smooth ; 

 the black median streak smooth along the middle, irre- 

 gularly punctured at the sides and on both sides of the 

 median lobe. The scutellum transverse, glossy and impunctate. 



Elytra subparallel, narrowly flattened along the sides ; 

 each elytron with ten regular striae of distinct punctures 

 which become larger towards the sides; the interstices are 

 alternately costate; the 2 nd and 5 th costae only join the 

 apical margin ; an oblique smooth callosity is present on 

 each elytron between the 3 rd and 6 th striae just before 

 the black apical half. 



Under surface: the triangular middle portion of the head 

 is remotely and very finely punctured, the lateral portions 

 are coarsely punctured; the sterna show some punctures 

 laterally and the elytral epipleurae have similar punctures 

 on the inner half of the basal fourth ; the ventral segments 

 with a few hair-bearing punctures on both sides of the 

 middle; the legs apparently impunctate. 



cf. Legs more slender and more elongate than in the 

 9; the underside of the anterior femora covered with 

 minute warts or granules which give it a rough appea- 



JSotes 1'rom the Leyden Museum, Vol. XXV. 



