EUMOLPUS.— TTMNES. 173 



about once and a half as broad as long, very finely and closely punctured ; elytra slightly narrowed 

 below the base when viewed from above, distinctly narrowed behind, much more strongly punctured than 

 the thorax, the punctuation also very close, somewhat rugose near the sides; presternum longer than 

 broad, much widened behind. 

 Var. Much larger, brilliant metallic green, the elytra less strongly and more irregularly punctured, the inter- 

 stices everywhere aciculate or scratched. 



Eab. Mexico 3 , Jalapa, Almolonga, Mirador, Panistlahuca, Vera Cruz, Cuernavaca 

 (Salle, Edge) ; Guatemala, Lanquin (Champion) ; Nicaragua, Chontales (Belt, Jansori) ; 

 Panama (Boucard). — Guiana 1 ; Amazons 3 ; Brazil 3 . 



I have given a renewed description here of this species from the numerous specimens 

 before me, most of which agree with those in the collection of Mr. Baly. Two speci- 

 mens from Panama, of which one is figured here, vary in being nearly twice the size of 

 the Mexican specimens, and have the elytra aciculate between the punctures ; in other 

 respects they agree with the rest. The species is distributed throughout the greater 

 part of South America. 



2. Eumolpus speciosus. (Tab. IX. fig. 15.) 



Eumolpus speciosus, Baly, Trans. Ent. Soc. 1877, p. 52 \ 

 Eumolpus mexicanus, Sturm, Cat. 1843, p. 296. 

 Eumolpus hopfneri, Dej. Cat. 3rd ed. p. 437. 



Eab. Mexico (Sturm, coll. Salle). — Brazil K 



The only specimen from Mexico before me is from Sturm's collection, and has his 

 ticket labelled "jEJ. mexicanus" attached to it; the species proves to be identical with 

 Mr. Baly's type, who described it under the name of U. speciosus. From R surinamensis 

 the present one is easily distinguished by the long filiform antennae (which in other 

 groups would have been thought sufficient for the erection of another genus), the strongly 

 and very closely punctured thorax and elytra, and the nearly square presternum. 



In addition to these important differences, I find that the claws can scarcely be called 

 bifid, the inner division being very obscure, and so closely attached to the outer part 

 that the claws would be better called appendiculate. 



TYMNES. 

 Tymnes, Chapuis, Genera des Coleopt. 1874, x. p. 310. 



This genus was founded by Chapuis upon a species from North America, of elongate 

 shape, resembling the genus Edusa of Australia in its general appearance ; but it is 

 devoid of the lateral elytral rugosities peculiar to the Australian genus. In Tymnes the 

 anterior margin of the thoracic episternum is convex; and the genus consequently 

 belongs to the second section of Chapuis's arrangement, where he has included it in the 

 Edusinee; the latter, however, form a special group, distinguished by their elytral 

 rugosities, which, as already remarked, are absent in the present genus. I refer the 



