( 249 ) 



both sexes. Prothorax convex, not iinite twice as broad at carina as long, plicate, 

 sides pubescent cream}'- as far discad as njiper edge of eye, this lateral area, 

 which is continuous with the grey-white under surface, sinuate in middle and 

 including two brown spots, the spots being often joined to the brown discal area; 

 a large basal mesial sjiot grey, continued across the carina, being of the same width 

 about in front of and behind the carina, generally connected by a thin line with a 

 mesial antemedian ellijitical spot, which itself is connected by a thin line with 

 apical margin ; dorsal carina feebly convex laterally, forming an acute angle 

 with basal longitudinal carina ; flexed forward in an obtuse and strongly rounded 

 angle, not reaching middle of side. Scutellnni white. Elytra short, slightly 

 flattened above, feebly impressed behind at suture, with rather coarse stripes of 

 punctures ; a grey area from base beyond middle, basally extending to lateral 

 margin, but interrupted at shoulders, expanding between the fourth interspace 

 from basal fourth of elytra backwards, narrowed at end, which is rotundate-truncate ; 

 patch either produced laterad just before end, or there is a separate discal spot 

 near end of patch ; an obliquely ovate brown subbasal spot within grey area, often 

 continuous with brown area ; declivous apex entirely grey, this area anteriorly 

 bisinuate on each elytrum, often produced forward at suture to meet the anterior 

 grey area, and not rarely including a brown spot on each elytrum ; a transverse 

 antemedian lateral spot grey. Pygidium twice as long as broad, somewhat curved 

 upwards at end in cJ ; brown lateral spot elongate, small, sometimes vestigial. 

 Underside white. Apex of femora and basal three-fourths of tibiae rufous. 



Length, 3^ to 4A mm. 



Hub. Jatahy, Goyaz. 



A series. 



IT. Gymnognathus sorer spec. nov. 



? . Pygidium and anal sternite rounded-truncate, the former with brown mesial 

 vitta. Similar to G. brecirostris (1895) Jord. Rostrum somewhat longer, angle 

 of prothoracic carina a little less than 90°, not rounded ; greyish clay area of elytra 

 longer, extending behind from suture to fifth row of punctures, very shallowly 

 emarginate laterally liefure apex, not deejily sinuate, apical spot larger ; femora and 

 tibiae rufescent, essentially the same colour, the femora not being obviously paler 

 than the tibiae. 



I lab. (Jaraca, Minas Geraes, December 188.5 (Gounelle). 



1 ?. 



18. Gymnognathus helena spec. nov. 



? . Pygidium truncate, angles rounded, a brown mesial vitta : anal sternite 

 emarginate. Rnfesceut. Rostrum transversely depressed at base, with a feeble 

 mesial carina ; a yellowish clay mesial vitta, divided on head into two lines bordering 

 the eyes. Prothorax nearly twice as broad as long, plicate, with three yellowish 

 clay vittae, narrowing apicad, lateral ones oblique ; dorsal carina rather obviously 

 curved backwards laterally, lateral angle 90", somewhat rounded, lateral carina 

 extending to middle. Elytra rather short, strongly depressed, at suture from basal 

 third backwards ; a transverse basal patch between scutellum and shoulder, 

 reappearing beneath shoulder-angle, imperfectly connected near sutnre with a 

 sutural area which extends beyond middle ; this area is cross-shaped, including a 

 large sutural antemedian brown spot, side-arm of cross anteriorly bisinuate, oblique. 



