PARADISTICHOCERA. 



115 



In order to make a comparison of the differences of the 

 corresponding parts as easy as possible , I thought it would 

 be useful to point them opposite. 



Uis tichocera. 



(ƒ. Antennae. Third joint 

 large , longer than the next 

 following , thickened at the 

 top, with rudimental lamellae 

 only; the 4*^ — lO^h joints 

 gradually, though slightly, 

 decreasing, the lamellae be- 

 coming longer the more and 

 more, those of the outerside 

 somewhat longer than those 

 of the innerside ; the termi- 

 nal joint lamelliform, slightly 

 overreaching the lamellae of 

 the foregoing joint. 



Prothorax more or less 

 trapeziform, with the hinder 

 angles strongly rounded , the 

 sides unequal and gibbous. 



large 



seraicir- 



Scutellum 

 cular. 



Elytra indistinctly costate , 

 covered all over with a close 

 velvety pubescence. 



Paradistichocera. 



cf. Antennae. Third joint 

 very small , half the length 

 of the next following , broad, 

 somewhat cuplike, provided 

 with lamellae as long as the 

 4th and 5tli joint together; 

 the 4tli — lO^h joints gradu- 

 ally, though slightly , increas- 

 ing, the lamellae remaining 

 all of the same length as 

 those of the 2>'^^ joint, and 

 equally long at the outer 

 and at the innerside; the 

 terminal joint lamelliform , 

 overreaching the lamellae of 

 the foregoing joint with about 

 the half of its length. 



Prothorax in front almost 

 of the same width as at the 

 base, slightly constricted be- 

 fore and below the middle , 

 which is provided with a large 

 but rather obtuse spine. 



Scutellum triangular, trun- 

 cated at the top. 



Elytra very distinctly cos- 

 tate , between the ridges dull 

 which is due to a very close 

 punctuation, filled with a very 

 minute and scarce pile. 



Notes from the Leyden Museum , "Vol. IX. 



