360 HETEROMERA. 
Elytra long, with rows of approximate transverse impressions, the interstices a little 
convex ; eyes small, distant ; upper surface moderately shining, greenish-eeneous Or 
cupreous, the prothorax usually of a brilliant golden-cupreous tint ; under surface 
bright metallic green or violaceous, the fourth and Jifth ventral segments red ; 
size large. 
32. Strongylium auratum. (Tab. XVI. fig. 2, 3.) 
Stenochia aurata, Casteln. Hist. Nat. Ins. Col. ii. p. 240°. 
Stenochia lebasii, Dej. Cat. 3rd edit. p. 232°. 
Stenochia hilaris (Chevr.), Dej. Cat. 1. c.* 
Strongylium auratum, Mékl. Monogr. p. 293; Act. Soc. Fenn. viii. part 1, p. 401°. 
Hab. Mexico?4, S.W. Yucatan, Cordova, Tuxtla, Chiapas (Sallé), Chilpancingo, 
Almolonga, Cholula, Jalapa, Tapachula (Hoge); Brivish Honpuras, R. Sarstoon 
(Blancaneaux); Guatemata, Las Mercedes, Panzos, San Juan in Vera Paz (Champion) ; 
Nicaragua, Chontales (Belt, Janson); Costa Rica (coll. F. Bates); Panama (coll. F. 
Bates), Chiriqui (Ribbe).—CotomBia1? 4; Bontvia‘. 
This insect is abundant throughout the forest-region of Central America, and extends 
southwards to Bolivia: it ascends to an elevation of about 3000 feet. S. auratum is 
very probably a variety of S. hemorrhoidale (Fabr.) (=Stenochia viridis, Casteln., 
= Helops auricollis, Germ.), and is indeed so labelled in Mr. F. Bates’s collection; but 
as none of our examplesare referable to the latter, I treat it as distinct ; both are found 
in Southern Colombia. A male example from San Juan is figured. 
Elytra long, minutely striate-punctate, almost smooth ; eyes very large ; 
surface entirely dull black ; size large. 
33. Strongylium atrum. (Tab. XV. fig. 14, 3.) 
Elongate, rather depressed, entirely black, opaque. Head closely, coarsely, and subequally punctured, almost 
unimpressed between the eyes, the latter very large and subapproximate ; antennw (3) long, rather 
slender, very gradually widening outwardly, joints 3 and 4 moderately long, subequal, 5-10 all very much 
longer than broad, gradually* decreasing in length, 11 rather longer than 10, widening outwardly, and 
obliquely truncate at the apex; prothorax nearly as long as broad, rather convex, subquadrate, the sides 
immarginate, nearly straight, only very slightly narrowing in front, the base and apex nearly straight, 
and very feebly margined, the anterior angles rounded, the hind angles rectangular, the basal fovez 
scarcely indicated, the surface without depressions, very ‘closely, rather coarsely,.and equally punctured, 
the punctures shallow; scutellum triangular, very distinctly punctured; elytra long, subparallel to beyond 
the middle, depressed, exceedingly finely and shallowly striate-punctate, the punctures oblong in form, 
rather distant one from another, and becoming almost obsolete at the apex, the interstices perfectly flat 
throughout, and very finely (but quite distinctly) punctured, the apices a little produced; beneath a little 
more shining, finely and sparingly punctured, the flanks of the prothorax and the sides and side-pieces of 
the meso- and of the metasternum coarsely so; the fifth ventral segment slightly depressed in the middle 
behind in the male; legs long, rather coarsely punctured ; first joint of the posterior tarsi long, as long as 
the apical one; prosternum broad, abruptly declivous. 
Length 164 millim.; breadth 53 millim. (¢.) 
Hab. Mexico, Ventanas in Durango (Hége). 
