( -^47 ) 



with mesial carina, which nearly reaches a[iex and extends backwards over the 

 Irons. The latter two-thirds the width of the rostrum, multicarinate. Prnthorax 

 one-third broader than long, finely rugnlose, convex, not longitudinally depressed 

 in middle ; carina biconvex above, curved forward at sides in an even arch, 

 without indication of an angle, not reaching middle of side. Elytra convex, less 

 depressed at suture, and shorter, than in ancora. Pygidium longer than broad. 



Length, 7;l- mm. 



llah. Caracj'a, Minas Geraes, December 1SS5 (Gounelle). 



1 c?. 



13. Gymnognathus alma spec. nov. 



? . Pygidium rounded, with very thin brown mesial line, which widens 

 apically ; anal sternite slightly emarginate. Rufescent ; club of antenna and 

 tarsi brown-black. Rostrum nearly half as long again as broad, deeply and 

 broadly impressed mesially from apex to base, with a mesial carina which does 

 not reach apex but extends backwards, -being highest anteriorly on frons ; a 

 broad creamy mesial vitta, dividing into three lines on occiput, the mesial line 

 being the broadest. Antennal segments 7 and 8 broader than long. Prothorax 

 half as broad again as long, smooth, longitudinally depressed in middle, the slight 

 depression filled in by a broad creamy vitta which tapers anteriorly ; two lateral 

 spots on disc, one apical, elongate, oblique, the other before' carina, rounded, a 

 little more dorsal, connected with a basal lateral spot ; gre}' pubescence of under- 

 side extended upwards over lateral carina, sending out a spur towards the apical 

 dorsal streak ; dorsal carina interrupted in middle and rather deeply concave, 

 flexed forward at sides in a very obtuse, rounded angle. Elytra nearly as in 

 ancora ; stri2)es very fine ; grey area extended basally to lateral margin, including 

 brown shoulder spot, exjianded between suture and stripe 5 and reaching close to 

 apical declivity, rectangularly excised in middle of elytrum, posteriorly sinuate at 

 suture, including a brown dot situated at basal third of suture. Underside creamy 

 white, except a dot on metasternal episternum and sides of last two abdominal 

 segments. Legs rufous, tarsi brown-black. 



Length, 8i mm. 



Hab. Brazil. 



1 ¥. 



13. Gymnognathus irma spec. nov. 



S ? . Pj'gidium and last ventral segment rotundate-truncate. Similar in colour 

 to ancora. Occiput with brown triangular mesial patch divided by a thin grey 

 mesial line ; mesial vitta of pronotum broad, occupying nearly half the base ; sides 

 of pronotum clayish grey, with two brown spots incompletely separating an oblique 

 vitta from the lateral area ; dorsal area of elytra as in ancora, apical spot luniform, 

 curving forward near suture ; pygidium grey, narrowly bordered with brown at 

 sides, the brown border slightly widened near base. Head and jironotum rugnlose, 

 l>licate, as in affinis, angle of prothoracic carina as in affin>.<< : lateral carina both in 

 irma. and affmis shorter than in ancora. 



Hab. Jatahy, Goyaz. 



A series. 



