218 PHYTOPHAGA.—SU PPLEMENT. 
In its markings MV. hirsuta resembles many of its congeners (especially M. chloro- 
spilota), but is well distinguished by the entirely testaceous antenne, and the non-costate 
elytral interstices on the disc and their pubescence; the latter consists of a single row 
of erect hairs on each interstice, but is very marked in well-preserved examples. In the 
female the thorax is, as usual, more transverse. Many specimens. — 
2(s). Metaxyonycha panamensis. (Tab. XL. fig. 23.) 
Testaceous, the intermediate joints of the antenne piceous; thorax remotely punctured, the sides tridentate ; 
elytra strongly and irregularly punctured in rows, the interstices costate at the apex, a humeral spot and 
a narrow short transverse band below the middle metallic blue or green. 
Length 34-43 lines. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Although closely allied to several other species of the genus, M. panamensis, of 
which many specimens are before me, differs constantly in the following particulars :— 
The antenne have the fifth and the following two joints piceous; the thorax is irre- 
gularly and remotely punctured (the species differing in this respect from M. tridentata) ; 
the elytra have smaller metallic spots, and the posterior one is in the shape of a short. 
transverse narrow band (thus agreeing with UW. tridentata, but in that species the 
elytral interstices are convex throughout—in the present insect they are only so at the 
apex). MM. panamensis may be separated from various South-American forms by the 
entirely testaceous legs, and from MM. hirsuta by the glabrous elytra. Several 
examples have the left lateral margin of the thorax nearly entire or unidentate, and in 
others the teeth are placed in different positions to those of the right side. 
5. Metaxyonycha variolosa. 
Testaceous; the antenns (the basal three joints excepted) black; thorax deeply and rather closely punctured, 
bifoveolate at the sides, the latter tridentate; elytra metallic green, rugosely punctured, the lateral and 
apical margins testaceous ; intermediate tibie emarginate at the apex. 
Length 4 lines. 
Hab. Mexico, Tapachula in Chiapas (//ége). 
A single specimen. This species has much the appearance of Prionodera chloroptera 
(Germ.); the colour of the antenne and the different structure of the thorax and of the 
intermediate tibize will, however, separate WZ. variolosa from it. The three teeth on the 
lateral margin of the thorax are very distinct; the elytra are very strongly transversely 
rugose between the punctures, and also show traces of longitudinal coste near the 
suture; the underside and legs are entirely testaceous. 
PRIONODERA (p. 130). 
Prionodera salvini (p. 131). 
To the localities given, add:—Panama, Volcan de Chiriqui (Champion). 
