374 PROCEEDIK'GS OF THE NATIONAL MUSEUM vol.94 



deep, moderately narrow, punctures small, rather indistinct; inter- 

 spaces wider than striae, flat on disk, finely granulate-punctate, with 

 numerous appressed, cinereous hairs of moderate size, the middle row 

 in each interspace slightly longer and more erect at sides and behind ; 

 declivity moderately steep, interspaces narrower and somewhat con- 

 vex, with erect hairs uniseriate and more numerous than on disk. 



7'ype locality. — El Peten, Guatemala. 



Host. — Unknown. 



Type material— 'Ro\oiy\)e, U. S. N. M. No. 56550. 



The holotype was collected on April 8, 1922, by H. F. Loomis. 



CNESINUS ROBAI, new species 



Plate 15, Figtjre 5 



Dark piceous-brown to black; 2.34 mm. long, 3.73 times as long as 

 wide. 



Frons (fig. 5) with eyes rather narrowly separated above, its inter- 

 ocular area convex, black, brightly polished, with only a few minute, 

 obsolescent puiictures except at sides near eyes, where small, close 

 punctures bear fine, rather short hairs; strongly, transversely im- 

 pressed below convexity, with a distinct, small callus at each side of 

 median line ; epistoma lighter in shade, with numerous reddish-yellow 

 hairs directed dorsad. Eye large, wider than usual, broadly shal- 

 lowly emarginate, facets coarse. Antenna with club elongate ovate, 

 with sutures transverse, the first two septate. 



Pronotum 1.04 times as long as wide, widest near middle; posterior 

 outline bisinuate, posterior lateral angles rounded, sides arcuate and 

 weakly divergent on slightly more than posterior half, then more 

 strongly narrowed, broadly rounded in front; surface dark reddish 

 brown, subshining, densely strigate, subasperate at sides in front; 

 median line narrow, slightly elevated and distinct on posterior half; 

 hairs fine, appressed behind, stouter anteriorly. 



Elytra wider than pronotum and 1.91 times as long, 1.82 times as 

 long as wide; sides nearly straight and subparallel on more than 

 anterior half, then gradually arcuately narrowed, with apex moder- 

 ately broadly rounded ; surface subshining, striae narrow, impressed, 

 with small, inconspicuous punctures ; interspaces flat, rugulose, finely, 

 irregularly granulate, with fine punctures and a few fine, short hairs 

 irregularly arranged, the median row in each interspace longer and 

 stouter near and on declivity. 



Type locality. — Santander Department, Colombia. 



Host. — Coffea arahica. 



Type material.— 'RoXoiy^Q^ and 2 paratypes, U. S. N. M. No. 56551. 



The type series was collected at an altitude of 700 to 1,300 meters 

 by K. P. Roba, in whose honor the species is named. 



