and species of South American Eumolpidce, Sfc. 295 



base to just behind tlie middle, thence obliquely rounded 

 and converging to the apex, all the angles mucronate ; 

 upper surface deeply but not closely punctured, the punc- 

 turing finer on the middle disk ; interspaces minutely 

 punctured. Scutellum semiovate, acute, its disk obscure 

 rufous. Elytra broader than the thorax, ovate, slightly 

 attenuated at the apex, convex, strongly but rather distinctly 

 punctured, the punctures confused on the inner disk, 

 arranged in ill-defined longitudinal rows on the sides and 

 apex, the interspaces minutely punctured ; each elytron 

 with three large yellow patches, one at the base, trans- 

 verse, separated fi'om the basal and lateral margins by a 

 narrow line, but abbreviated some distance before reaching 

 the suture, its hinder border erose ; a second near the 

 middle, much narrower, commencing just within the outer 

 margin and terminating on the inner disk, at about the 

 same distance fi'om the suture as the former one, its 

 anterior and posterior edges irregularly erose ; lastly, a 

 third, subapical trigouate ; inflexed limb obscure rufous. 



Genus Trichochalcea. 



Corpus anguste oblongo-ovatum, valde convexum, pube 

 sericea vestitum. Caput thoraci insertum ; facie perpen- 

 diculari ; oculis rotundato-ovatis, intus leviter emarginatis; 

 ontennis corporis dimidio vix asquilongis, basi filiformibus, 

 articulis 5 ultimis pauUo incrassatis; palpis articulo ultimo 

 acuminate. Thorax transversus, lateribus marginatis. 

 Elytra oblonga, thorace latiora, convexa, rugosa, confuse 

 punctata. Pedes breves, robusti; femoribus subampulatis, 

 anticis incrassatis, subtus angulatis ; tihiis a basi ad apicem 

 ampliatis, compressis, anticis basi incurvatis ; unguiculis 

 appendiculatis. Prosternum oblongum, fere planum, basi 

 truncatum; episterno antico antice convexo, sulco inter 

 episternum et prosternum distlncto. 



Type, Trichochalcea rugata. 



The present genus belongs to the second division of the 

 family ; it agrees Avith Meroda in the appendiculated claws 

 and in the form of the thickened anterior pair of legs, but 

 differs in the pubescence clothing the upper surface of the 

 body, and in the absence of the notch on the outer edge 

 of the four posterior tibite ; the same characters, together 

 with the appendicidated claws, separate it from Typo- 

 phorus and its allies. 



