310 PHYTOPHAGA. 



Head black, entirely impunctate, with a small fovea in front of the eyes ; frontal tubercles absent ; carina 

 narrow acutely raised; antennae more than half the length of the body, black, the three terminal joints 

 obscure fulvous, fourth joint slightly longer than the third ; thorax about twice as broad as long, the 

 sides moderately rounded ; anterior angles obliquely thickened, basal groove very obsolete but visible ; 

 scutellum black ; elytra very slightly widened below the middle, rather strongly convex, impunctate, 

 black, the posterior portion from slightly below the middle testaceous ; femora and abdomen pale fulvous ; 

 tibia?, tarsi, and the breast black. 



Hal. Panama, Volcan de Chiriqui {Champion). 



Two specimens of this well-marked species were captured. 



14. Disonycha austriaca. (Tab. XVIII. fig. 18.) 



(Edionychis austriaca, Schaufuss, Nunq. Otiosus, ii. 1874, p. 308 \ 

 Disonycha austriaca, Harold, Coleopt. Hefte, xiv. p. 28 2 . 



Hob. Guatemala, Panima, Chacoj (Champion) ; Panama, David, Bugaba (Champion). 

 — Colombia 12 ; Peeu (coll. Jacoby). 



The only difference to be noted in the Panama specimens is the black instead of the 

 flavous underside to be found in the South-American forms ; the spots of the elytra at 

 their posterior half are also connected in all the Central-American specimens, as is 

 sometimes the case in the Southern insects. In other respects I cannot find sufficient 

 differences to justify their separation. The species, as already noted by Von Harold, is 

 a true Disonycha, and has nothing to do with the genus (Edionychis. 



15. Disonycha sexmaculata. (Tab. XVIII. fig. 19.) 



Ovate-oblong, below piceous ; sides of the abdomen, legs, antennae, and thorax flavous ; head black ; elytra 

 impunctate, black; a spot at the base, a transverse band at the middle, and another at the apex 

 yellow. 

 Length 2| lines. 



Hah. Mexico, Cordova (coll. Salle). 



Closely allied to D. austriaca, from which it differs principally by the pale flavous 

 colour of the antennae and legs ; the former have the first two joints stained with piceous 

 above, and their third and fourth joints are of nearly equal length. Three specimens 

 before me agree with each other in every respect. 



16. Disonycha cordovana. (Tab. xvill. fig. 20.) 



Oblong-ovate, convex; head, thorax, and femora obscure fulvous; tibia? and breast black; elytra closely 

 punctured, testaceous, the sutural and lateral margin, a spot at the base and apex, and a transverse band 

 before and below the middle black ; abdomen testaceous. 



Length 3 lines. 



Head impunctate, with a single fovea in front of the eyes ; frontal tubercles absent ; carina very narrow but 

 distinct ; palpi black ; thorax nearly three times as broad as long ; posterior margin convex ; lateral 

 margin nearly straight ; anterior angles obtusely thickened and oblique, posterior ones obliquely sinuate ; 

 basal sulcation very obsolete, and indicated only by a small central fovea ; upper surface entirely impunc- 



