SCOLOCHRUS. 125 
among the numerous varieties of 7. aibilabris. In one of these examples the thorax 
is black, with the anterior and lateral margins, a narrow central longitudinal band 
extending to the middle, and two spots at the base, flavous, and the tibie and the 
greater part of the femora also flavous ; in the other the thorax has the disc black, the 
central band only just indicated, and the basal spots absent. In these two specimens, 
as well as in those obtained at Huetamo, the scutellum and the entire pygidium are 
likewise flavous, thus answering partly to Suffrian’s description of S. suturalis. 
Scolochrus zonatus (p. 59). 
I think it very probable that S. zonatus is but another variety of S. albilabris; the 
differences pointed out by Suffrian do not seem to be important enough to separate it 
from S. albilabris, which is one of the most variable species of the genus. 
4 (a.) Scolochrus pallipes. (Tab. XXXVIILI. figg. 6, 7, var. 3.) 
Black, the scutellum, legs, pygidium, and sides of the abdomen pale yellow ; head, and the anterior margin of 
the thorax, rufous ; elytra finely punctate-striate, rufous, a transverse band across the middle, and a 
humeral spot, black. 
Var. a. Thorax black, the sides and two spots at the base flavous; elytra black, with an oblique basal trans- 
verse red band. 
Var. 6. Thorax and elytra entirely black. 
Length 24 lines. 
. Head entirely rufous, with a few punctures at its lower portion ; eyes distant, very large and triangularly 
notched ; labrum flavous ; mandibles black; antenne extending only to the base of the elytra, black, the 
basal joint flavous, the following four joints marked with flavous at the base only, shining, the terminal 
joints widened, the fourth twice as long as the preceding joint; thorax three times broader than long, the 
sides strongly and rather suddenly narrowed in front, the disc with a few fine punctures, the sides a little 
more strongly and closely punctured and with an oblique moderately deep depression, the surface black, 
the anterior margin (more widely so at the middle), a spot in front of the scutellum, and the extreme 
posterior angles fulvous ; scutellum yellowish-white, smooth ; elytra scarcely narrowed behind, the basal 
margin strongly raised, the punctures fine and rather regular and distinct to the apex, bright red, with a spot 
at the shoulders, the middle of the disc, and a transverse band (narrowed at the suture and not extending 
to the sides, its anterior margin strongly convex, its posterior one concave between each alternate row of 
punctures), black; underside black, the closely punctured prosternum, the sides of the last ventral segments, 
the pygidium, and the legs, nearly white; the upper portion of the anterior femora and their tibie light 
brown. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
At first sight this species might easily be mistaken for one of the numerous varieties 
of §. albilabris. It differs, however, from &. albilabris, not only in colour, but in the 
shape of the thorax (which resembles that of S. purpurascens) and in the much finer 
elytral punctuation. 8. pallipes seems to be subject to the same amount of variation 
as S. albilabris, the five specimens received being all somewhat differently coloured. 
In the var. a the thorax, instead of having the anterior margin fulvous, has the sides of 
that colour, and the elytra marked as in some varieties of S. albilabris ; while in the 
var. @ the thorax and elytra are entirely black. But in all these forms the sides of the 
