DICEEPIDITJS.— SPILES. 295 



the elytra narrowing from the base in both sexes, with the striae indistinct (except on 

 the basal declivity) and the interstices almost fiat, and the propleurae punctured at the 

 sides only. The antennal rami in the male are even more elongate than in the North- 

 American B. palmatus, Cand. We figure a male from Chontales. 



4. Bicrepidius serraticornis. (Tab. XIII. figg. 6, <j ; 6 a, antenna.) 



Elongate, narrow, rather depressed, fusco-ferruginous, moderately shining, rather sparsely clothed above 

 and beneath with long yellowish-cinereous hairs ; the legs and antennse ferruginous. Head moderately 

 convex, closely, coarsely punctate, broadly depressed in front and also very feebly sulcate in the middle 

 between the eyes ; antennae about reaching the basal fourth of the elytra, joints 3-10 strongly obliquely 

 serrate, the outer apical angle of these joints becoming progressively more and more obliquely produced. 

 Prothorax as long as broad, convex ; the hind angles stout, greatly produced, divergent, and carinate 

 above, limited internally by a shallow impression ; the surface thickly and rather coarsely punctured, 

 obsoletely canaliculate behind. Scutellum thickly punctured. Elytra moderately elongate, flattened on 

 the disc, subparallel in their basal third and gradually narrowed thence to the apex, the apices conjointly 

 rounded ; punctate-striate, the striae shallow (except on the basal declivity), and with moderately coarse 

 rather widely separated punctures, which become very much finer beyond the middle ; the interstices 

 almost flat and sparsely finely punctate. Beneath somewhat thickly punctured, the propleurae with widely 

 scattered punctures, smooth at the base ; posterior coxal plates feebly subangularly widened opposite the 

 point of insertion of the femora. 



Length 14 ; breadth 3| millim. ( S •) 



Hab. Mexico, La Noria in Sinaloa (Hoge). 



One male specimen. This species differs from all the other members of the genus 

 known to me in having the posterior coxal plates only feebly subangularly widened 

 over the point of insertion of the hind femora, and also in the non-flabellate antennae 

 in the male. The head is formed exactly as in the typical species of Bicrepidius. 



SPILUS. 



Spilus, Candeze, Monogr. Elat. ii. p. 87 (1859). 



The five described species of this genus are all from Tropical South America. One 

 from Central America is now added. The males have the antennse densely clothed 

 with short fine erect hairs on their inner edge, a character not noticed by Candeze. 



1. Spilus Ciliaticornis. (Tab. XIII. figg. 11, <3\ H#, antenna.) 



Elongate, rather narrow, convex, shining, varying in colour from pitchy-black to brownish-ferruginous ; the 

 antennas and legs testaceous or fusco-testaceous j above and beneath somewhat thickly clothed with long 

 flavo-cinereous hairs. Head moderately convex, closely and coarsely punctate, the frontal carina flexed 

 downwards in the middle ; antennas ( c? ) about half the length of the body, rather slender, the joints very 

 finely and densely ciliate on their inner edge, 3 much shorter than 4, ( $ ) shorter, and with the joints 

 very sparsely ciliate on their inner edge. Prothorax convex, about as long as broad, subcorneal ; the 

 hind angles divergent, strongly produced, sharply carinate above, limited internally by a deep impression ; 

 the surface rather sparsely, finely punctate, the punctures becoming coarser towards the apex, canaliculate 

 behind, deeply so in some specimens, and with rather deep transverse basal grooves. Scutellum sparsely 

 punctate. Elytra nearly three and a half times the length of the prothorax, narrowing from a little below 

 the base, the sutural angles submucronate ; finely and shallowly punctate-striate, the interstices flat on 



