Neiv Genera and Species of Neotropical Curculionidae. 223 



i-ounded, the gular margin sinuate ; the dorsum covered with rugose 

 wrinldes, the median area shallowly depressed, but not separated 

 from the lateral ones by definite ridges ; the basal and apical margins 

 very shiny and almost impunctate, the rest of the surface opaque. 

 Scntellum transverse, nearly semicircular, subtruncate in front, bare, 

 and with a shallow transverse impression. Elytra elongate, sub- 

 elliptical, with the sides gently rounded, broadest at the middle, 

 and shallowly sinuate behind the very sloping shoulders ; the dorsal 

 outline regularly convex from the base to the top of the declivity, 

 being deepest before the middle, the declivity with a slope of 70°; 

 tlie dorsum shallowly impressed transversely at the base, the punc- 

 tures on the disk so shallow, confluent and indefinite as to appear 

 quite irregular and indistinct, the lateral ones small and shallow, 

 but forming more or less regular rows; interval 3 costate at the 

 extreme base, but otherwise there are no raised carinae; the scales 

 very small, elliptical and slightly overlapping; the setae fairly 

 numerous, short, irregular and somewhat raised. 

 Length, 20 mm. ; breadth, 8 mm. 



Colombia. 



Described from a single specimen. 



Allied to X. viridilimbata, but easily distinguished by 

 its dull colouring and the absence of smooth costae on the 

 prothorax and elytra; the general form appears more 

 narrowly elliptical owing to the much less prominent 

 slioulders. 



Explanation of Plates III, IV. 



PLATE III. 



Fic;. 1. Xestogasler squalida, sp. n. 



2. Exorides pyriformis, sp. n. 



3. Xeslogaster porosa, sp. n. 



4. Compsiis armalissimns, sp. n. 



5. Pseudocyphus marmoratus, sp. n. 

 G. Compsns fradilineatns, sp. n. 



7. ,, piigionatus, sp. n. 



S. Exorides cornigatus, sp. n. 

 'J. Pseudocyphus sellatus, sp. n. 



10. ExophtJmlmodes consobrinus, sp. n. 



11. ,, crassicornis Kii-sch. 



12. ,, parenlheticus, sp. n. 



13. Compsus zebra, sp. n. 



