( -^40 ) 



rather wiiler, ;i iiiuinw haml of blackisli spots from miilill'' of base to basal third 

 of oiitPi- ra;irj;iii, aiiothpr band of three sjwts parallel with tlie first beginning 

 at basal fonrth of suture, the white lines partly interrupted within the bands, 

 scntellnm surrounded by black. Underside an<l legs black, thinly pubescent white, 

 presternum laterally more densely white, with oblicpie fuscous postmedian band ; 

 meso-metasternuru and abdonjen laterally spotted with white, three last sjjots 

 yellowish. 



Length, >h mm. 



Ilab. Jatahy, Goyaz. 



1 6. 



111. Gymnognathus coronatus spec. nov. 



tj ?. Pygidium and anal sternite truncate-iotundate, the former with thin 

 white mesial line. Black, elytra olivaceous cinnamon, occiput and anterior third 

 of ])ronotum red. Hostrum transversely depressed at base, half as broad again as 

 long, grey in middle and yellowish at sides like froiis. Eye siditruucate anteriorly. 

 Frons broad, rugate. Occiput in 6 with a circidar groove of which the edge is 

 raised. Antenna black, rufescent at base, club rufous, segment 3 hardly as long 

 as 2, <i to s short. Prothorax more than half as broad again at carina as 

 long, conical from carina to ajiex, granulose-rngnlose ; apical margin bordered 

 with white above, three white basal spots, carina bordered with white at 

 frontal side, this border produced forward in front of basal spots and con- 

 tinued along lateral carina, the mesial projection reaching in between the 

 two halves of a white transverse median band, which is more or less widely 

 interrnpted in middle and extends downwards to prosternnm ; dorsal carina 

 feebly biconvex, forming au acute angle with basal longitudinal carina, flexed 

 forward at sides in an even arch, not reaching middle. Scutellum white. 

 Elytra very slightly flattened, slightly impressed behind at suture, a shadowy 

 brown transverse band behind base extending from near suture to near lateral 

 margin, flexed forward at side, including shoulder-angle, this inconspicuous band 

 slip.htly bordered with white in front and behind ; base somewhat yellowish. 

 Pygidium shaded with grey, half as long again as basal broad, white mesial 

 line narrow. Underside not very densely pubescent white, sides of metasternum 

 more densely pubescent, yellowish, an oblique transverse band on pro-, another 

 on meso-metasternum brown. Legs black or brown, rufescent at knees. 



Length, 3i to 4 mm. 



Ilah. Jatahy, Goyaz. 



A series. 



The round groove on the head nf the d is a very striking character peculiar to 

 this species. 



1 1 . Gymnog'nathus nubilus spec. nov. 



?. Pygidium and anal sternite rounded. Knfescent, tarsi black; pygidium 

 and underside densely pubescent white ; upperside shaded all o\er with white, 

 this pubescence condensed at the sides of the pronotnm and in middle before base, 

 on elytra in basal depression, along suture from scutellum to near middle, this vitta 

 curving lateiud behind, at ai)e.\' and in middle of hiteral margin : all these markings 

 ill-dehued. 



Rostrum broad, about one-third longer than broad, mesially depressed at base, 



