new fjenera and species of Tenehrionidce, ^'c. 293 



epipleural fold of the elytra abbreviated behind, expanding 

 to the shoulders, the outer edge sinviate ; legs slender, 

 thighs parallel, tibia3 straight ; first joint of middle and 

 hind tarsi long, in the latter longer than the last joint. 



Porplnjrhyha violaceicolor, Fairra. 1. c. p. 137. 



Above entirely (except the scutellum, which is cyaneous) 

 of a beautifid shining purplish-violet, with golden reflec- 

 tions ; head and prothorax finely and not at all (excejit 

 on the epistoma) closely punctured ; scutellum finely 

 longitudinally keeled, irregularly punctured ; elytra regu- 

 larly punctate-striate, the strias very lightly impressed, 

 the punctures veiy distinct, rounded, closely set ; intervals 

 equal, plane, finely and not closely punctured ; underside, 

 legs, antennfc and oral organs, black ; femora and tibias 

 closely and distinctly punctured. 



Long. 6 lin. 



Tetraplujllus, Cast, et Brulle. 



This genus stands greatly in need of revision. I do not 

 here enter into the question raised by Dr. ISIaklin (who 

 places the species ordinarily recognized as belonging to 

 Tetraphyllus under Damatris\ because it is not yet 

 clearly ascertained what would come under Tetraphyllus 

 as recognized by him. I have in my possession specimens 

 obtained from old French collections (I believe from M. 

 Reiche's), labelled " Tetrajjliyllus Reaumuri, Cast.," and 

 " Teirapliyllus Latreillei, Lap. et Brulle," the former being 

 Hemicyclus grandis, Hope, and the latter a species of 

 Artactes, Pascoe. However this may be, there is no 

 doubt that the list given in the Munich Catalogue 

 (p. 1997) represents a heterogenous assemblage of divei-se 

 generic forms ; and I offer no apology for making the 

 new genera that follow. 



TaXsAw^ formosus as the type of the genus Tetraphyllus, 

 we fmd the mentum (when dissected out) to be trapezoidal 

 {i.e., apex Avider than base and sides sloping), very promi- 

 nent and convex, but scarcely carinate down the centre, 

 and impressed at each side ; there is also a distinct, fine 

 short carina at each side, obliquely directed from the apex 

 to the middle of the sides, the space beyond this, forming 

 the anterior angles, being inflected ; last joint of maxillary 

 palpi subcultriform ; antennie Avith the five last articles a 

 little depressed, gradually larger, subtriangulate (except 



