278 PHYTOPHAGA.—SUPPLEMENT. 
tured, their epipleure broad at the base, very narrow below the middle; posterior femora very strongly 
incrassate ; posterior tibie deeply channelled, with a spur at the tip, flavous at the base, black at the 
apex; the tarsi and the four anterior tibiw black; claws appendiculate ; anterior coxal cavities open. 
Hab. Panama, Bugaba (Champion). 
One specimen. 
ACANTHONYCHA. (To precede the genus Pelonia, p. 318.) 
Body elongate, metallic above; antenna filiform; eyes large; palpi with the penultimate joint thickened ; 
thorax subquadrate, subangulate at the sides, obsoletely transversely sulcate near the basal margin; elytra 
closely and irregularly punctured, their epipleuree broad, continued to the apex; posterior femora but 
slightly incrassate ; posterior tibia mucronate; the first joint of the posterior tarsi as long as the following 
three joints united; claws appendiculate ; prosternum narrow; anterior coxal cavities open. 
This new genus is proposed for Pelonia elegantula, Baly. It may be known from 
Pelonia by the very differently-shaped thorax, the metallic elytra, and other particulars 
mentioned above. From Cacoscelis, to which it is closely allied, it differs in the shape 
of the thorax, and in the very shallow and more flattened basal groove of the latter. 
Pelonia elegantula has the hind femora but little thickened, and the legs slender, these 
characters giving it the appearance of a Galerucid; but the broad elytral epipleuree and 
the distinct prosternum show that it belongs to the Halticine. 
1. Acanthonycha elegantula. 
Pelonia elegantula, huj. op. p. 818, Tab. XVII. fig. 25, Tab. XIX. fig. 7. 
To the localities given, add:—Mexico, Teapa (H. H. Smith); British Honpuras, 
R. Sarstoon, R. Hondo (Blancaneaux) ; GuateMaLa, Panzos, Teleman, Chacoj (Cham- 
pion). 
In addition to the varieties already noticed by me, another one, entirely reddish- 
fulvous in colour, has been obtained in numbers by Mr. Champion in the Polochic 
Valley and by M. Blancaneaux in British Honduras, 
CALLIPHRON. (To follow the genus Megasus, p. 321.) 
Body elongate ; antenne long and robust in the male, shorter and more slender in the female ; thorax transverse, 
without basal depression, the sides rounded, the angles obsolete; scutellum large ; elytra punctate-striate ; 
posterior femora moderately thickened ; posterior tibie not channelled, mucronate ; anterior tibie unarmed ; 
the first joint of the posterior tarsi as long as the following two joints together; claws appendiculate ; 
prosternum narrow, convex ; anterior coxal cavities open. 
Calliphron. agrees in general appearance with Plectrotetra, but differs from it by the 
want of a thoracic groove and by the appendiculate claws. 
1. Calliphron ferrugineum. (Tab. XLII. fig. 5, 3.) 
Dark fulvous, the antenne and legs piceous or black; head and thorax nearly impunctate; elytra distinctly 
punctate-striate, the punctures indistinct near the apex, the interstices flat. 
Length 2 lines. 
