428 Mr. D. Sharp's descrij)tion of a neir genus, ^'c 



A single female, found at Chontales, has been given me 

 by Mr. Belt. 



Xanthopygus viridipennis, n. sp. Niger, nitidiis, an- 

 tennis abdoiuinisquc segmeutis duobiis iiltiinis testaceis ; 

 elytris vu'idis, vel cyaneo-viridis ; abdomine sat crebre 

 liunctato. Long. corp. 15 — 16 mm. 



Mas: abdominis segniento 6° vcntrali medio linea trans- 

 versa longc pilosa, margineque apicali leviter emarginato, 

 segmento 7° apice medio profunde inciso. 



Allied to S. sapphirimis, Er., but rather narrower, and 

 with longer thorax ; the punctuation of the upper surface 

 less dense, and the elytra greenish rather than blue or 

 violet. The antennae are rather long and slender, entirely 

 yellow. Maxillary palpi longer than in S. sapphirinus ; 

 labrum pitchy. Head coarsely and irregularly punctured, 

 with a broad impunctate space on the disc, the punctures 

 not very numerous except behind the eyes. Thorax quite 

 as long as broad, rather coarsely and irregularly punc- 

 tured, the punctures moderately numerous. Elytra slightly 

 longer than the thorax, shining green or greenish- blue, 

 moderately strongly and not closely punctured. The hind 

 body is black, with the two last segments entirely reddish- 

 yellow, its punctuation moderately close and distinct. 

 Legs black ; front tarsi ferruginous. 



The characters of the male are similar to those of 

 S. sajjphirinus, but the emargination of the 6th segment 

 is broader and not so deep. 



Chontales ; Nicaragua. 



Philonthus discretus, n. sp. Nigci", capite thoraccque 

 subiBneis ; antennis crassiusculis, capite transversim sub- 

 orbiculato ; thorace crebre fortiter punctato, linea lata im- 

 punctata ; elytris abdomineque crebre punctatis. Long. 

 Corp. 10 — 11 mm. 



Antenna) black, with the base of the 2nd joint red; 

 rather stout, not thickened at the extremity ; 3rd jomt as 

 long as 2nd; of 4 — 10 each is a little shorter than its pre- 

 decessor; the 10th not quite as long as broad. Head 

 small, a good deal narrower thnn the thorax, rounded, 

 shorter than broad, bearing numerous deep and rather 

 coarse punctures, which are wanting on a space along the 

 middle. Thoi\ax rather narrower than the elytra, about 

 as long as broad, the sides a little curved and a little 



