LYBAS.— LYBANODES. 77 



Hab. Panama, Volcan de Chiriqui, Tole (Champion). 



Smaller and relatively shorter than L. carbunculus, and with fewer punctures in the 

 series, the punctures being at the same time larger and more deeply impressed near 

 the base of the elytra. 



Two specimens only. 



LYBANODES. 



Corpus ovatum, subscaphiforme, nitidum, lucidum. Antennae ut in Lybas, articulis tribus ultimis clavam 

 perfoliatum formantibus, articulo nono et decimo angulis anterioribua acutis intus paullo productis : 

 palpi maxillares articulo ultimo quadrato, haud lato. Mentum acutum, subtrianguliforme. Prosternum 

 antice compressum. Linese metasternales et abdominales distinctse. Sexus masculinus puneto ventrali 

 piloso, in medio segmenti primi distinctus. Pedes modice longi ; tibiis baud expansis, fere rectis ; tarsis 

 articulis tribus primis subaequalibus. 



The small insect I include in this genus is very like Lybas anisotomoides superficially, 

 but it cannot be included in either of the allied genera on account of the undilated 

 maxillary palpi. The sexual distinction so rare in this family, and hitherto not 

 observed in the ' Triplacides,' is an additional reason for its separation. 



1. Lybanodes castaneus. (Tab. IV. fig. 17.) 



Oblongo-ovatus, postice parum attenuatus, saturate castaneus vel brunneus ; antennis articulis quinque 

 basalibus et palpis testaceis, clava nigra articulo ultimo rufo ; elytris punctulato-striatis. Long. 4|-5 

 millim. 



Mas segmento ventrali primo puneto aureo-piloso. 



Hab. Nicaeagua, Chontales (Jansori). 



Very smooth and shining, deep chestnut-red ; the head with a few minute punctures, 

 especially at the base ; the antennae, palpi, and legs rather lighter red than the body. 

 Thorax narrowed in front, the front margin nearly straight, the sides very finely 

 margined ; basal margin with an obsolete row of punctures, but no true marginal line ; 

 its disc convex and glabrous. Elytra very convex, more narrowed towards the apex 

 than the body is in front ; with rows of large punctures, the row before the humeral 

 callus being more deeply impressed at the base than the others, and all of them 

 becoming obliterated before the apex ; there is no sutural stria, and the surface is 

 quite smooth between the rows of large punctures. The underside is smooth, but near 

 the plicate lines on the metasternum are several very large rough punctures ; the 

 whole body beneath is very much keeled; the intercoxal process of the abdomen is 

 long, and (in the male) the pilose spot, which is not impressed but only clothed with 

 fine depressed golden hair, is placed rather below the coxae near the base of the 

 segment. 



Three specimens of this interesting species have been received, of which two are 

 males. 



