198 



THE ENTOMOLOGIST. 



the present species before me. Altogether, Lacordaire's descrip- 

 tion speaks of four tubercles on each elytron ; in G. trimaculata 

 there is only a single one, as mentioned above. (Collection 

 M. Donckier and my own.) 



Chlamys donckieei, sp.n. 



Black ; the antennae, labrum, and tarsi fulvous ; thorax with a 

 high conical elevation, sulcate at the top; elytra with a velvety black 

 space below the scutellum, a tubercle near the suture below the middle, 

 and two more elongate ones near the apex, an oblique ridge at the disc, 

 and another below the shoulders. Length, 3 millim. 



Head opaque, deep black, finely and remotely punctured ; labrum 

 and antennns fulvous ; thorax with tbe middle portion raised into a 

 high conical tubercle, the top of which is deeply sulcate, the entire 

 surface and the elevation closely punctured and reticulate, velvety 

 black ; elytra with a similarly coloured broad space below the scutellum, 

 closely punctured, bounded at the sides by an oblique ridge from the 

 middle of the base to the suture, at which place it forms a high trans- 

 verse ridge, from the shoulder another ridge joins the first one before 

 the middle ; a third ridge is placed near the lateral margins, but be- 

 comes indistinct posteriorly ; near the apex are two tubercles, one of 

 elongate ridge-like shape near the suture, the other more conical in 

 shape ; pygidium strongly rugose-punctate, the suture finely serrate ; 

 tarsi fulvous. 



Hah. Prov. Goyaz, Brazils. 



The thoracic hump in this species is very pronounced, and 

 slightly narrowed towards the top, and the elytral ridges are 

 strongly raised at their commencement. The insect is no doubt 

 closely allied to C. hircina, Lac, but differs in the highly raised 

 elytral ridges and their tubercles ; C. minax, Lac, has the 

 thoracic elevation of different shape, and differently sculptured 

 elytra; the same is the case with C. thoracica, Koll. (Coll. Donckier 

 and my own.) 



Chlamys seminigea, sp. n. 



Obscure ferruginous ; thorax finely punctured, the base with a 

 regularly rounded elevation, feebly bicarinate ; elytra with black 

 punctures, a short transverse ridge before the middle, and five small 

 tubercles below the latter ; breast and the middle of the abdomen, as 

 well as a small spot at the sides of the latter, black ; legs fulvous, 

 femora partly black. Length, 4 millim. 



Head flat, pale ferruginous, wdth a small brown spot at the middle ; 

 antennae of the same colour, the fourth and following joints strongly 

 transverse ; thorax with the basal portion gradually raised into a 

 rounded elevation, the posterior portion of which shows two feeble 

 oblique ridges ; the entire surface is finely impressed with small brown 

 punctures, and the middle portion is rugose, ferruginous, with a small 

 obsolete dark spot anteriorly, and a short brown band at each side near 

 the base ; the elytra are punctured like the thorax, but more closely 

 so, and have two rather distinct longitudinal ridges at the sides only — 

 one in front of the shoulders which ends in a short transverse ridge 

 before the middle, the second ridge is very short, and placed close to 



