NEW SPECIES OF CHLAMYD^ FROM SOUTH AMERICA. 199 



the lateral margins at the middle ; at this place it is marked by a 

 transverse tubercle ; opposite, near the suture, another tubercle is 

 placed, three more occupy the posterior portion of the elytra, the inter- 

 stices at that portion are rather strongly rugose ; the breast and the 

 middle of the abdomen deep black, also the intermediate and posterior 

 femora, with the middle portion of the latter colour ; rest of the 

 under side flavous ; the first segment of the abdomen with another 

 small black spot at each side ; pygidium finely rugose, flavous, the 

 base with a small and obsolete spot at each side ; prosternum trans- 

 verse at the anterior portion, strongly compressed posteriorly. 



Hab. Prov. Goyaz, Brazils. 



The colour of the under side, in connection with the nearly 

 obsolete elytral ridges, will distinguish this species ; the pro- 

 sternum is also of rather peculiar shape. (Coll. Donckier and 

 my own.) 



Chlamys semibrunea, sp. n. 



Subelongate, parallel, piceous, with pale fulvous ridges and spots ; 

 legs and pygidium fulvous, with dark markings ; thorax with the basal 

 elevation rounded, the sides of the latter with indistinct pale ridges, 

 the rest deeply punctured with black ; elytra with a network of pale 

 and short ridges, closely punctured, the apex with two obsolete 

 tubercles. Length, 2^ millim. 



Head closely rugose, dark fulvous, the middle with a blackish 

 mark ; autennte with the lower three or four joints fulvous, the rest 

 dark ; thorax with a moderately raised and round basal elevation, 

 feebly canaliculate at the top, from which irregular pale fulvous and 

 short ridges project sideways, which intermix and form a kind of net- 

 work ; the elevation is well limited laterally by a semicircular groove, 

 and entirely and strongly rugose, at the sides are two feebly raised 

 callosities, and the entire surface is closely impressed with black punc- 

 tures ; the anterior portion of the elevation is more or less marked 

 with fulvous at the middle ; scutellum nearly black ; elytra deeply and 

 closely punctured, the punctures black, interrupted by transverse 

 irregular fulvous ridges, without the usual four longitudinal costfe, or 

 of which perhaps only one can be distinguished from the middle of the 

 base, and gradually approaching the suture, at the middle of which a 

 short transverse ridge is placed ; another short semicircular ridge 

 surrounds the scutellum below the base ; at the sides, longitudinal and 

 transverse short ridges of pale colour join each other, and with the 

 exception of two very obsolete tubercles near the apex, there are no 

 others visible at the rest of the surface ; suture finely serrate through- 

 out ; pygidium with two short ridges at the middle fulvous, with black 

 punctures, the sides depressed ; breast and abdomen black ; legs 

 fulvous, the femora and tibiae with a blackish spot at the middle, pro- 

 sternum gradually triangularly widened anteriorly. 



Hab. Brazils (C. Briich). 



The almost entirely indistinct elytral costae, the absence of 

 most of the tubercles, and the sculpture of the thorax does not 

 agree with any of the other small species described by Lacor- 

 daire. Two specimens are contained in my collection. 



s 2 



