562 SUPPLEMENT. 
from it in the strongly, transversely convex thorax (in this respect resembling P. fumosa), 
the sides of which are more feebly margined (the marginal carina being scarcely visible 
from above in some specimens), and in the rows of punctures on the elytra being almost 
or entirely obliterated. 
PC:ACILESTHUS (p. 335). 
10. Peecilesthus cupripennis. (Tab. XXIII. fig. 17.) 
Moderately elongate, convex, shining ; the head brilliant metallic green, the prothorax rufo-testaceous, the 
scutellum and elytra coppery-violaceous, the legs and under surface (the prothorax excepted) violaceous. 
Head smooth, very deeply longitudinally impressed between the eyes, and deeply, transversely grooved 
in front, the eyes large; antenne pitchy-brown, violaceous at the base, rather elongate, joints 5-11 
flattened, much longer than broad; prothorax transversely convex, short, finely and completely margined 
at the sides (the carina not visible from above), strongly so in front, a little narrower at the apex than 
at the base, and with a very deep transverse groove behind, the sides feebly rounded, the surface smooth ; 
elytra rather elongate, convex, subparallel in their basal half, with rows of closely set, moderately fine 
punctures placed in shallow striw, the strizw becoming a little deeper at the apex, the interstices flat, 
smooth. 
Length 5, breadth 14 millim. (.) 
Hab. Panama, Bugaba (Champion). 
One specimen. ‘This little species is very dissimilar from any member of the genus 
known to me. 
STRONGYLIUM (p. 341). 
4 (a). Strongylium clavicorne. (Tab. XXIII. figg. 16; 16 a, antenna.) 
Moderately elongate, narrow, convex, the head and prothorax greenish-eneous, the scutellum and elytra 
black, with a very faint violaceous lustre, the upper surface feebly shining. Head somewhat exserted, 
finely and rather sparsely punctured, very deeply, transversely depressed between the eyes, and trans- 
versely grooved in front, the eyes large; antenne blackish-violaceous, with joints 4, 5,and 11 testaceous, 
short, only reaching to about the base of the prothorax, joints 3—d very slender, 6 triangular, much wider 
than 5, 7-11 flattened, greatly widened, and closely articulated, forming an elongate, very broad club, 
7-10 strongly transverse, 7 considerably narrower than 8, 11 much narrower and slightly longer than 10, 
rounded at the tip; prothorax about as long as broad, flattened-cylindrical, completely immarginate at 
the sides, very little narrower at the apex than at the base, widest at the middle, the basal and apical 
margins raised, the sides a little rounded at the middle, feebly sinuous in front and more distinctly so 
behind, the hind angles distinct, the disc with a shallow transverse depression on either side about the 
middle and with indications of a faint median groove at the base, the surface finely, sparsely, irregularly 
punctate; elytra convex, comparatively short, very much wider than the prothorax, widest beyond the 
middle, and gradually narrowing thence to the base, with regular rows of exceedingly minute, approxi- 
mate punctures placed upon very fine almost obsolete striw, the interstices perfectly flat throughout and 
apparently smooth (under a strong lens an exceedingly dense, minute, reticulate sculpture is visible, which 
gives the surface a dull appearance) ; beneath shining, violaceous, almost smooth; legs rather slender, 
violaceous, the tibie punctured, the femora smooth ; epipleure exceedingly narrow from about their basal 
third onwards. 
Length 6-6}, breadth 2 millim. (¢ @.) 
Hab. Mexico, Motzorongo and Atoyac in Vera Cruz (fohr). 
One pair, the male in a mutilated condition and without antenne. This peculiar 
