if«i3.: 45 



Bemhiiliomo'rplium convpxiim, n. sp. 



Oblong, convex, brilliant cupreous with the disc of the prothorax and 

 elvtra slightly sutlused with green, green with the base and apex of the pro- 

 thorax and the sides of the elytra cupreous, or brassy black, the legs, mandibles, 

 palpi, and antennae black or piceous, the under surface aeneous. Head almost 

 smooth, bisulcate in front, the space between these sulci and the narrow supra- 

 orbital groove appearing thickened: antennae rather stout, joint 3 slightly 

 longer than 2, 5-10 not longer than broad. Prothorax large, wider than the 

 head, bro;ider than long, rounded at the sides anteriorly, and narrowed and 

 sinuate posteriorly, the hind angles rectangular ; sparsely, coarsely punctate at 

 the base, and with a large deep fovea near the hind angles, the disc ti'ansversely 

 wrinkled and with a narrow, sharp median sulcus, not quite reaching the base 

 or apex. Elytra regularly oval, at the middle considerably wider than the 

 prothorax, tlie humeri distinct, but obtuse; obsoletely striate on the disc, the 

 striae becoming evanescent towards the sides and apex, those near the suture 

 conspicuously punctured, the interstices smooth, flat, without pores. Legs 

 rather short, the tarsi comparatively stout. 



Length 3|-4, breadth 1|-1t mm. 



Hah. TiEBRA DEL FuEGO, Hardv Peninsula near Cape Horn, 

 Navarin Isl. (C. Daricin) ; Chile, Patch Cove, north part of Ti*es 

 Montes (C Dai'win). 



Five specimens, yarying greatly in the colom* of the upper surface, 

 the one from Tres Montes ( $ ) haying the prothorax and elyti'a brilliant 

 green and cupreous. The general coloration is suggestiye of that of 

 Cascellius nit id us Gr. E. Waterh., a much larger, elongate Broscid also 

 inhabiting Tierra del Fuego. 



Dttiscidae. 



Megadytes Sharp. 

 3Iegadytes glauciis l^Y\A\e. 

 Hal. Argexti>'a ; L^RUGUAT, etc. 



Sharp, in his important work on the Dyfiscidae (18S2), omitted to 

 mention Cyhister hiungidatus Babington (1841), found by Darwin at 

 Maldonado, Uruguay. It is correctly placed as a synonym of A[. gJaucus 

 Brulle in the "Munich Catalogue" (18G8), in "syhich, howeyer, the 

 locality is wrongly giyen as " Patagonia.*' There are five specimens 

 from Maldonado in the Museum, one of which must be the tyjie. 



Staphtlixidae. 



XoRDE^'SKJOLDELLA Enderlein. 



NordenskjoIdeUa Jlavitarsis Endeilein. 



Hah. Tierra del Fuego, Lapataia Channel (type), Nayarin Isl. 

 (C. Darwin). 



