140 PHYTOPHAGA.—SUPPLEMENT. 
P. inclusus is closely allied to P. scenicus and its allies, but it cannot well be regarded 
as a variety of either, the eight specimens I have for comparison all agreeing in the 
following particulars:—The thorax is rather more strongly punctured (though the 
black markings are very similar); the elytra have the black strie more frequently 
united, forming black markings, the elongate-triangular space near the suture replaced 
by a nearly round one (similar to that present in P. irregularis), the strie at the sides 
united in three places, forming three deep black spots, the strie below the scutellum 
frequently joined, by which another black mark is formed, and the immediate space 
surrounding the scutellum often closely and irregularly impressed with black punctures ; 
and the pygidium (its lower edge excepted) and the sides of the last abdominal segments 
are yellow. The legs agree in colour with those of P. scenicus. P. inclusus is a larger 
and more robust insect than P. irregularis, and has the markings of the thorax and of 
the elytra deep black and the strie more frequently united; our figure, which is taken 
from a specimen with the pale spots rather more conspicuous than in the others, will 
convey a better idea of the differences between the two species. 
Pachybrachys irregularis (p. 67). 
To the localities given, add :—Mexico, Colima city (Hége), Tepetlapa, Chilpancingo, 
and Amula in Guerrero, Orizaba (H. H. Smith); Guatema.a, Cerro Zunil, San Isidro | 
(Champion). 
This seems to be a most variable species, of which it is difficult to fix the limit. 
Suffrian describes the thorax as being closely punctured, the space surrounding the 
scutellum irregularly, the rest of the elytral surface rather regularly, punctured; the 
elytra with a more or less ovate (not elongate), smooth, and raised space near the 
suture at the middle of each (this space being more rounded in shape than in P. lady- 
rinthicus); the underside for the greater part black; and the pygidium and legs more 
or less fulvous. The author speaks further of a transverse black spot near the apex of 
the elytra, which in the otherwise typical specimens that have come under my obser- 
vation is absent. The description, however, if carefully compared, agrees very well 
with the specimens obtained in Mexico ; but nearly all those received from Guatemala 
differ in the following particulars:—They are smaller; the thorax is much less closely 
punctured, and has on each side a nearly smooth, slightly raised space; and the elytra . 
have the space surrounding the scutellum generally with two short curved rows of 
impressions (not irregularly punctured), and the rest of the punctuation regular (but the 
punctures much more distantly placed than in the typical specimens), and have also a 
small nearly black shoulder-spot, and frequently a dark transverse band of variable 
width near the apex (which agrees with Suffrian’s description). 
I would certainly have looked upon these Guatemalan specimens as distinct from 
P. irregularis, if we had not several examples with an intermediate form of sculpture. 
