EHABDOPHOKUS.— CORYSTHEA. 153 



10. Rhabdophorus thoracicus. 



Greenish, aeneous ; antennae testaceous, joints fifth to eighth and the two terminal ones black ; thorax irregu- 

 larly and strongly punctured, the sides angulate before the middle ; elytra punctate-rugose, apex costate ; 

 legs fulvous. 



Length 2| lines. 



c? . Head finely and closely punctured, vertex with a central longitudinal groove, and another transverse one 

 between the eyes, the latter large and prominent ; clypeus closely punctured, separated from the face 

 laterally by two fine grooves ; labrum fulvous ; jaws black; joints of the antennae, with the exception of 

 the second one, slender and elongate ; thorax transverse, scarcely narrowed anteriorly, the sides nearly 

 straight at the base, distinctly angulate before the middle, surface closely rugose punctate and subfoveolate 

 at the sides, centre of the disk very sparingly punctured, the interstices somewhat raised here and there, 

 extreme lateral margin reflexed, metallic green ; scutellum broadly ovate ; elytra moderately convex, 

 slightly narrowed towards the apex, almost entirely and irregularly rugose, especially at the sides, the 

 interstices punctured, the apex obsoletely costate ; legs dark fulvous ; tarsi black ; presternum broad, a 

 little longer than wide, the base very slightly concave. 



Hob. Nicakagua, Chontales (Janson) ; Panama, Volcan de Chiriqui (Champion). 



This species, of which two male specimens were lately received, is well distinguished 

 by the antemedian angulation of the sides of the thorax and the strongly rugose 

 sculpture of the elytra ; the insect seems, without doubt, very closely allied to R. tuber- 

 culatus, Lefev. ; but in this species, which inhabits Colombia, the middle of the thorax 

 is given as angulate, and the elytra are described as irregularly punctured. 



11. Khabdophorus intermedins. 



Ovate ; obscure metallic green; legs and antennae fulvous, joints seventh and the two terminal ones of latter 

 black ; thorax finely punctured, the sides bidentate ; elytra subgeminate punctate and rugose, interstices 

 longitudinally costate. 



Length 2| lines. 



Head sparingly punctured at the vertex, with a longitudinal central groove, and an obscure transverse cupreous 

 band at the base ; clypeus strongly punctured anteriorly, distinctly separated from the face, limited in 

 front of each eye by a smooth raised callosity of metallic cupreous colour ; antennae of half the length of 

 the body ; thorax transversely convex, the angles scarcely prominent, the sides distinctly dentate before 

 and at the middle, surface rather closely and finely punctured ; elytra strongly convex towards the middle, 

 rather abruptly declined to the apex, like the thorax obscure metallic green, geminate punctate-striate 

 anteriorly and near the suture, strongly punctate-rugose at the sides, the interstices towards the apex 

 raised into strong longitudinal costae ; legs and tarsi fulvous ; presternum very broad, punctate-rugose. 



Hab. Guatemala, Sabo (Champion). 



Although I have only a single female specimen of this species to compare, I must 

 consider it a new one, on account of the finely and evenly punctured thorax in connexion 

 with the bidentate sides of the latter. 



COKYSTHEA. 



Corysthea, Baly, Trans. Ent. Soc. 3rd ser. ii. 1865, p. 336. 

 Corycia, B&ly, Journ. of Ent. ii. p. 222. 



The genus founded by Mr. Baly is one of two genera, containing a good many species, 

 biol. CENTE.-AMEE., Coleopt., Vol. VI. Pt. 1, February 1882. X 



