474 (98) Mr. G. R. Crotch's Revision of 



Mycolybas lucidus. 



Lyhas lucidus, Lac. Erot. 232. 



Brazil. 



This species is very distinct, having no coxal lines, and the 

 tibiae being suddenly angularly dilated at the apex; the mentum 

 appears to be almost as in Mycotretus. 



Mycolybas Egse, sp. n. 



M. lucido proximus, sed opacus, pallide coccineus, elytris mar- 

 gine tenui apiceque flavis; capita antice fortius punctate, sutura 

 clypeali distincta; thorace subtilius punctato; elytris minus visibi- 

 liter striatis, interstitiis vix punctatis, corpore subtus punctulato, 

 meta-epipleuris flavis. L. 4| lin. Ega (Bates). 



Antennae with a 3-jointed club. 



Mycolybas cruentatus. 



Lyhas cruentatus, Kirsch, B. E. Z. ix. 97 (1865). 



M. lucido afiinis, sed thorace fortius punctato distinctus. 



Bogota (Kirsch), N. Granada. 



A specimen from N. Granada differs fi'om Kirsch's type in 

 having the thorax more like M. lucidus, and the legs black : pos- 

 sibly all three form one species. 



Mycolybas melanocorynus. 



Jjyhas melanocorynus, Lac. Erot. 233. 

 Brazil. 



Mycolybas (?) sanguinosus.* 



Tschynis sanguinosus. Mots. Et. Ent. 1858, 116. 

 Columbia, 



Mycolybas (?) coccineipennis.* 



Ischyrus coccineipennis, Mots. Et. Ent. 1858, 117. 

 Central America. 



Palseolybas. 



g. n. {typ. andrese, Crotch). 



This genus is apparently the representative of the S. American 

 Lyhas, which it resembles in its convexity atid polish; the most 

 marked character is the triangular dilatation of the tibiaj, which 

 extends to their whole length. The thorax is not margined, the 

 prosternum is margined on either side but not keeled in front, 



