MALACODERMATA, 229 
species, with a rudely-formed channel, the sides of which are ridged and joined by an 
oblique curved ridge with the lateral margins; the disc is sometimes marked with 
blackish, and the scutellum black. 
2. Lucaina marginata. (Tab. XII. fig. 8.) 
Nigro-picea, parum nitida; prothorace antea et lateribus, elytrorum limbo laterali ante apicem desinente, 
femoribus anticis et intermediis aurantiaceis, rostro etiam nonnunquam flavo ; elytris profundius striatis, 
disco subceruleo. Long. 6-63 millim. ¢ 9. 
Hab. Mexico, Northern Sonora (Morrison). 
Readily distinguished from Z. schini, not only by the colour, which appears very 
constant (with the exception that the head is sometimes more or less yellow), but by 
the more shining appearance and deeper striation of the elytra. The thorax is very 
uneven ; the central ridges are twice interrupted by a deep transverse depression, so that 
the central channel only appears as separate and very irregular fovee. The sculpture of 
the elytra is wholly different from that of L. schini, being finely rugulose. In L. schini 
it is not easy to see the separate strie; here they are quite distinct. About a dozen 
examples were taken. 
The figure is that of a female specimen. 
CALOPTERON (p. 8). 
Calopteron bifasciatum (p. 8). 
To the localities given, add:—GuateMALa, Chacoj (Champion); Panama, Bugaba, 
Volcan de Chiriqui (Champion). 
Found in plenty at Chacoj in the Polochic valley. 
Calopteron pallidum (p. 9). 
To the localities given, add :—Panama, Bugaba, Volcan de Chiriqui (Champion). 
A series of specimens which I refer to this, but which show no trace of a fascia, were 
collected by Mr. Champion. 
Calopteron divergens (p. 11). 
This species would be better placed following C. pallidum. A large number of 
specimens captured at Bugaba and the Volcan de Chiriqui are, I think, referable to 
the species described under this name from Nicaragua. ‘he males are in general 
smaller, and have their elytra more divergent at the apex than the females; while 
one form lacks the dark fascia near the base, and then rather nearly resembles C. 
corrugatum. Other specimens, which have the dark fascia, are very close to C. reticu- 
latum, but these are always to be separated by the more expanded form of the elytra, 
which, as in C. pallidum, have the row of cells in the fifth or external interval 
