(EDIONYCHIS. 413 



the apex ; the first joint of the posterior tarsi very short, the claw-joint strongly swollen ; the anterior 

 tarsi, together with the apices of the tibiae, fuscous or black. 



Hab. Mexico, Oaxaca, Etla (Salle). 



The entirely fulvous head, obscurely spotted thorax, and subrugose surface of the 

 elytra distinguish (E. lateralis from (E. extrema ; the flavous margin of the elytra 

 separates it from (E. h'dgei. 



15. (Edionychis antennalis. (Tab. xxiv. fig. 4.) 



Ovate, obscure testaceous; the vertex greenish aeneous ; antennae black, the first three joints testaceous, the 

 basal joint produced and tooth-like ; elytra metallic purplish, the lateral margin flavous, the surface 

 closely punctured. 



Length 3 lines. 



Head entirely impunetate, flavous, the base greenish aeneous ; antennas half the length of the body, the upper 

 margin of the first joint projecting into a point ; thorax impunctate, testaceous, the sides broadly 

 flattened, the anterior angles acutely mucronate ; scutellum obscure flavous ; elytra closely and distinctly 

 punctured, with an obsolete transverse depression below the base, of a bright metallic purplish-violaceous 

 colour, the lateral margin and the apices flavous ; underside obscure testaceous, the tarsi and claws darker, 

 as well as (in one specimen) the abdomen. 



Hab. Panama, Volcan de Chiriqui (Champion). 



Of shorter and more rounded shape than the other similarly coloured species, and to 

 be separated from them by the shape of the basal joint of the antenna?. 



16. (Edionychis limbatipennis. (Tab. xxiv. fig. l.) 



Broadly ovate, flavous ; antennae fuscous ; elytra closely punctured, metallic bluish violaceous, the lateral 



margin obscure testaceous. 

 Length 5 lines. 



Head with a few punctures placed transversely between the eyes, the frontal tubercles indistinct and bounded 

 behind, by a shallow fovea ; antennae slender, the joints elongate, of nearly equal length, with the 

 exception of the second, the three lower joints flavous, the rest fuscous or black ; thorax nearly three 

 times as broad as long, the anterior angles produced into a short blunt tooth, the sides rather broadly 

 flattened, the surface with a few very fine punctures ; scutellum obscure flavous ; elytra widened towards 

 the middle, very closely and distinctly punctured, of a metallic purplish-blue colour, the lateral margin 

 and the epipleurae flavous ; underside and legs flavous ; the first joint of the posterior tarsi slightly larger 

 than the second ; posterior claw-joint strongly swollen, piceous. 



Hab. Panama, Bugaba (Champion). 



One of the largest species of the genus described here ; the testaceous colour of the 

 margin widens somewhat near the apices of the elytra, which have a decided purplish 

 tint, and assume their greatest width at the middle. Four specimens were obtained. 



17. (Edionychis gemmata. 



Broadly subquadrate-ovate, testaceous j head, antennae, and the apices of the tibiae, black ; elytra very minutely 



punctured, metallic purplish. 

 Length 4|-5 lines. 

 Head black, impunctate, the frontal tubercles very obsolete, the labrum testaceous ; antennae black, the first 



two joints testaceous below ; thorax more than three times as broad as long, pale yellowish white the 



