N&w Genera and Sjyecies of Neotropical Ciirculionidae. 213 



Kirscli, but apart from the markedly costate elytra, the 

 rostrum is dilated at the apex, its median sulcus much, 

 narrower, and the lateral sulci shorter. 



Exorides lindigi Kirsch (1889). 



There is in the British Museum a single specimen from 

 Colombia that agrees well with Kirsch's description, but 

 accompanying it are examples that present a markedly 

 difl'erent appearance owing to the more elongate prothorax 

 and the more coarsely sculptured elytra, each of which 

 bears at the apex a very short sharp process (Plate IV, 

 fig. 2). As, however, these appear to be linked up with 

 the typical form by various intermediate specimens, they 

 are here treated as merely an extreme variation. 



Exorides cylindricus, sp. n. (Plate IV, fig. 8.) 



cj. Integument black, the depressions on the prothorax and 

 elytra filled with almost circular contiguous scales, which are dirty 

 grey on the disk and green on the sides ; no scales elsewhere, except 

 a few isolated green ones on the sternum and abdomen. 



Head with fairly numerous irregular punctures of varying size; 

 the frontal fovea deep and elongate, and the ocular margins deeply 

 impressed, Itoslrum longer than its basal width, gradually widened 

 from base to apex, with a few scattered large punctures ; the median 

 furrow broad and deep, uniting with the frontal fovea, and with 

 a deep shorter impression on each side of it. Antennae with the 

 scape extending slight^ beyond the eye and bearing scattered 

 punctures containing rather long subrecumbent setae and a few 

 much finer hairs; the funicular joints in order of length: (1, 2), 

 3, (4, 5), (6, 7), the apical joints much longer than broad, pear-sliapcd. 

 Prothorax much longer than broad, almost cylindrical, but slightly 

 narrowed near the apex, the basal margin truncate and the external 

 angles right angles ; rugosely tuberculate throughout, not impressed 

 on the disk, but only somewhat flattened, the tubercles each bearing 

 a few punctures; the front margin truncate above and shallowly 

 sinuate beneath. Elytra very narrow and elongate, the shoulders 

 only slightly projecting and hardly separable from the external 

 basal angle, the apices each produced into a blunt point, the pro- 

 cesses being rather Avidely separated; the dorsal outline almost 

 flat, the declivity with a slope of about 45°; the elytra coarsely 

 and reticulately punctate, the rows of punctures being fairly regular, 

 but Avith a tendency to become transversely confluent in the sub. 



