1907.] SPECIES OF CRYPTOCEPHALINE BEETLES. 849 



Pi-osteraum longer tlian broad, very broad and slightly concave 

 at the base, gradixally narrowed at the apex, the latter ronnded. 



Hah. Bolivia. 



Closely allied to M. hifasciatus Jac. (Mitt. ent. Gesells. 

 Miinchen, 1878, p. 142), but the thorax with two lateral not 

 one median spot, and finely and sparingly punctured, the head 

 not black. 



Metallactus flavofrontalis, sp. n. 



Head, antenna*, legs, and breast black, vertex with a flavous 

 spot ; thorax strongly punctured, with two large subtriangular 

 black patches ; elytra very closely punctured in iri-egular rows, 

 black, two spots at the middle, two below the latter, the outer 

 ones of both small, a spot at the apex, and the epipleurse at the 

 shoulders, yellow ; sides of the abdomen and pygidium likewise 

 yellow. 



Length 5 millim. 



Head very strongly and closely punctured, black, the vertex 

 with a round yellow spot ; labruni fulvous ; antennae long and 

 slender, black, the lower four joints flavous below, the third joint 

 one-half longer than the fourth, terminal joints very elongate 

 and slender, very slightly widened. Thorax scarcely twice as 

 broad as long, the sides rather suddenly narrowed anteriorly ; 

 posterior margins strongly thickened at the sides, strongly and 

 rather closely punctured ; flavous, with two large black patches, 

 narrow at the apex and extending to the anterior margin, rather 

 suddenly widened at the base, leaving the margin of the ground- 

 colour as far as its thickened portion, the space dividing the spots 

 in shape of a narrow flavous middle line, the sides more broadly 

 of that colour and abruptly widened near the anterior angles. 

 Scutellum flavous, subquadrate, the basal portion black. Elytra 

 with strongly produced lateral lobes, subcylindrical, strongly and 

 closely punctured, with but feeble indication of rows, black ; each 

 elytron with five bright yellow spots, the one near the suture at 

 the middle the largest and of round shape, the lower ones more 

 transverse and smaller, the outer two small, the first of these 

 joined to the flavous epiplein^se at the base. Breast, middle 

 of the abdomen, and the legs black ; prosternum rugose and 

 pubescent, longer than broad, narrowed between the coxpe, the 

 apex rounded ; pygidium and the sides of the abdominal segments 

 flavous. 



Hah. Jalahy, Prov. Goyaz, Brazil. 



Somewhat similarly coloured as M. koUari Perty and allied 

 species, but quite diff"erent in the pattern of the elytra in con- 

 nection with the broadly flavous sides of the abdomen, black 

 legs, &c. 



Metallactus affixis. sp. n. 



Flavous, the vertex of the head, the antennae, and the tibife 

 and tarsi black ; thorax strongly punctui'ed, with a transverse 



