TRIPLAX. 87 



applicato, prosterno triangukriter elevato, postice emargiiiato, 

 antice svib-acuto, immarginato ; epipleuris punctatis, pro antennis 

 concavis ; capite utrinque punctato, mentiiin sub-elongatum, rotuii- 

 datum. 



Triplax. 



Ilerhst, luif. v. 14G — 1703 {tijp- russica, L.). 



Tlie European and North American species are typical, those 

 from Madagascar and Brazil are not so, and will doubtless require 

 the establishment of at least two new generic divisions for their 

 reception ; paucity of material, however, precludes me from inves- 

 tigating them satisfactorily at present. 



Triplax melanocephala. 



Tritoma inelanocepJtala, Latr. Hist. Nat. xii. 39 (1804). 

 Triplax nigriceps, Lac. Erot. 213. 



melanocejihala, Bed. Abeille, v. 23. 



■ ■ , Crotch, Entoni. v. 7. 



Germany (Lacordaire), France, Spain, Italy, Algeria. 

 Distinct by the antennae, of which joints 2 — 8 are short, equal, 

 moniliform. 



Triplax Marseuli. 



Triplax Marseidi, Bed. Aheille, v. 24. 



S. France, Algeria. 



Difiers from T. melanocephala by the antennoa, which have the 

 3rd joint sub-elongate, and from T. cyanescens by the black elytra 

 and the flat scutellum. 



Triplax cyanescens. 



Triplax cijanescens, Bed. Aheille, v. 26. 



melanocephala ||, Lac. Ei'ot. 211 {iiec Latr.). 



Spain, Portugal, Algeria. 



Distinct by the blue tint, and the punctures in the strioe of the 

 elytra. 



Triplax senea. 



Silpha cenea, Schall. Act. Hall. i. 254 (1783). 



Triplax — , Lac. Erot. 212. 



, Bed. Aheille, v. 27. 



, Crotch, Entom. v. 7. 



Europe generally, commoner towards the north, Caucasus, 

 E. Siberia. 



T. hicolor, Marsh., is not a black variety, but merely a specimen 

 discoloured by grease and dirt. 



