GLYPHONTX. 545 



finely punctured thorax, and the Y-shaped prosternal process. G. ebeninus resembles 

 G. nigritus, but it is narrower and more fusiform, the antennae are longer and have the 

 basal joints only pale, the prosternal process is very differently formed, &c. 



16. Grlyphonyx praecox. 



Adrastus pracox, Erichs. Zeitschr. fur Ent. iii. p. 121 (1841) \ 



Hab. Mexico {coll. Janson), La Noria in Sinaloa, Chilpancingo in Guerrero, Yautepec 

 in Morelos, Jalapa 1 (Hoge), Puebla (Salle); Guatemala, Zapote, San Geronimo 

 (Champion). 



The specimens I refer to G. prcecox, the description of which appears to have been 

 overlooked by Candeze, may be separated from G. quadraticollis in all its varieties 

 by the more abruptly acuminate prosternal process and the more transverse thorax, as 

 well as by the entirely testaceous colour and smaller size. From the pale unicolorous 

 variety of G. cruciellus, and from G. teapensis also, the more divergent thoracic carinee 

 will distinguish it. The antennae are elongate in the male, much shorter in the female. 

 The thorax is transversely quadrate in the male, rounded at the sides anteriorly and 

 apparently more transverse in the female ; the lateral carina extends forwards to about 

 the middle, the inferior marginal carina widely diverging from it anteriorly and sinuate 

 behind ; the punctuation is sparse and fine. The elytra are narrowed from about 

 the basal third, and somewhat pointed behind. The prosternal process is Y-shaped, 

 the triangular intercoxal portion being margined and the slender apical part quite 

 smooth. 



There are three specimens of this species from " Louisiana " in the Janson collection 

 mixed with the series of G. testaceus, from which it may be easily known by the form 

 of the prosternal process, &c. ; the locality requires confirmation. 



17. Glyphonyx quadrinotatus, (Tab. XXIII. fig. 31.) 



Narrow, convex, shining ; piceous, the prothorax with the anterior margin and the tips of the hind angles, the 

 elytra with a subtriangular, posteriorly excised spot immediately below the shoulder, and a large patch 

 at the apex, the latter nearly reaching the suture, the legs, and antennae testaceous, the epipleurae brown ; 

 thickly clothed with yellowish-cinereous pubescence. Head thickly, finely punctate ; front acuminate ; 

 antennas extending to far beyond the hind angles of the prothorax. joint 3 shorter than 2. Prothorax 

 strongly transverse, slightly narrowed in front, almost parallel behind ; the hind angles acutely produced, 

 not divergent; the lateral carina extending forwards to about the middle, the inferior marginal carina 

 widely separated from it anteriorly, and strongly sinuous behind ; the surface very finely, somewhat 

 sparsely punctate ; the basal plicae distinct. Elytra three times the length of the prothorax, and slightly 

 wider than it, narrowing from about the middle, and somewhat pointed behind ; punctate-striate, the 

 interstices almost flat and sparsely punctured. Prosternum and propleurae with widely scattered fine 

 punctures ; metasternum sparsely and finely, the abdomen more closely, punctate ; prosternal process 

 Y-shaped, the triangular intercoxal portion obsoletely margined. Posterior coxal plates slightly dilated 

 in their inner third. 



Length 3£, breadth 1 millim. 



Hab. Guatemala, Cerro Zunil (Champion). 

 biol. CENTK.-AMER., Coleopt., Vol. III. Pt. 1, June 1896. 4 A 



