( 268 ) 



at sides; mesosternal ]irocess vertical, apical portion horizontal. Abdomen {S) 

 slight!}' depressed. Midtibia with acute tooth at apex. No combs or spines 

 on midcoxa and -femur. 



Length, 6i mm. 



Hab. San Carlos, Costa Rica (Schild-Bnrgdorf). 



1 (J. 



53. Nemotrichus niger sjiec. nov. 



c? ? . Black; npjierside sjiarsely irrorated with cinereous, this colour most 

 distinct behind the base and before the ajiical declivity of the elytra where the 

 grey pubescence forms indistinct patches or transverse bands ; a sutnral postmedian 

 indistinct spot black ; grey jinbescence denser on underside, but not covering the 

 whole surface ; first tarsal segment grey, last more or less rufons and also clothed 

 with a grey pubescence. Scuteilum grey. Antenna rufous, club brown. Antennal 

 segment 9 longer than 11. Prothorax almost twice as broad as long, sides strongly 

 ronnded before base, dorsal carina broadly concave in middle. Elytra coarsely 

 jmnctate-striate, the alternate interspaces slightly elevate. Pygidium short, in 

 c? truncate with the ajiical edge feebly angulate in middle, in ? truncate-sinuate. 

 Sides of sterna coarsely punctured ; process of mesosternum convex, almost 

 tuberculiform. Abdomen of S flattened in middle, not impressed, anal segment 

 truncate, with the angles projecting, rufescent at apical edge; anal segment of 

 ? rounded at apex, very feebly sinuate ; S without combs of spines on midcoxa 

 and -femur. 



Length, 4J to 8 mm. 



Hab. Jatahy, Goyaz, type ; San Antonio da Barra, Bahia, November — December 

 1888 (Gounelle). 



A series. 



64. Nemotrichus poecilus spec. uov. 



? . Black ; eye edged with olive-clay. On pronotum a short linear central 

 spot, two similar dorsal spots at apical margin and several dorso-lateral spots 

 and lines the same colour, sharply defined like the spots of the elytra. Elytra 

 ornamented as follows : an oblong basal sutural jiatch including the black scuteilum 

 and a black postscutellar sjiot, another patch on each elytrum between first and 

 fifth interspaces composed of lines, touching in interspace 2 the basal patch, the 

 three including between themselves a black sutural spot ; the antemedian patch 

 continued in interspaces 6 to 10 by shorter stripes which are gradually more anal 

 in position forming an oblique band of spots ; between this band and base there 

 are some more spots ; another but more distinct band extends from behind middle 

 of suture to outer margin, which it reaches at apical third, being oblique, continued 

 forward at suture by olive-clay tesselations ; area from this baud to apex spotted 

 with olive-clay. Pubescence of femora and of underside of body grey ; an apical 

 spot on prosternum underneath the lateral line of the pronotum, and a larger 

 one on side of metasternum black ; abdomen without side-spots ; first tarsal segment 

 and basal half of tibiae greyish yellow ; claw-segment rufous. 



Club of antenna long, the segments narrow, widest in basal half, three times 

 as long as broad, segment 9 twice as long as 8. Prothorax widest at antebasal 

 carina ; this dorsally very- feebly biconvex, laterally not reaching middle. Elytra 



I 



