242 SUPPLEMENT. 
Taken abundantly on the Volcano of Chiriqui at the altitude of 2500 to 4000 feet, 
sparingly at Bugaba. ‘This species and P. rubricatus should be placed following 
P. luridus. It is a most difficult species to define, and more variable than its allies. 
It will, I think, be recognized by its red-ochre colour, which is sometimes nearly 
vermilion shading into yellow, often in the same specimen ; also by its size, which never 
reaches that of the larger specimens of P. evanidus. The large series now sent enables 
me to amend my original description, which was taken from specimens from Cubilguitz 
alone. The amount of black on the disc of the thorax is very variable, from a broad 
vitta, the channel itself being black, to a mere speck at the end of the channel. The 
suture is black in many specimens from Chiriqui, but usually only for a short distance 
below the scutellum, and the latter is black in most of these specimens. Two specimens, 
taken at an altitude of 4000 to 6000 feet, have the apex of the elytra as well as the 
suture black. This is a very puzzling form, but I cannot separate these individuals 
from others from the same altitude with only the suture black. 
Plateros rubricatus (p. 24). 
To the localities given, add :—Panama, Bugaba, David (Champion). 
A good series of this species were met with ; it occurs at lower elevations than its 
near allies, P. luridus and P. evanidus. It is a broader species than either. ‘The 
males have the antenne longer than the females, but otherwise there is little difference 
between them excepting in the terminal segments of the abdomen, which are as usual 
in the whole family. 
A variety occurs in which the elytra are obscurely marked with fuscous streaks, the 
first of which is near the suture. 
Plateros mexicanus (p. 24). 
The males are much narrower than the females and more parallel. Three other 
specimens from Sallé’s collection are now referred by me to this species. 
Plateros patiens (p. 25). 
To the locality given, add :—GuateMaLA, Coatepeque, El Reposo (Champion). 
Three more specimens of this species have occurred, and these tend to confirm my 
belief in its specific distinctness. The type described is a female: the two specimens 
from El Reposo are, I consider, males of the same species; they are smaller, and their 
thoraces are marked with black along the central channel; in one the scutellum is 
yellow, in the other black, as it is in the specimen from Coatepeque; otherwise they 
exhibit no important difference. 
