172 PHYTOPHAGA.——SUPPLEMENT. 
EXEMA (p. 89). 
Exema dispar (p. 89). 
To the localities given, add:—Mextco, Northern Sonora (Morrison), Ventanas in 
Durango, Tonila in Colima, Acapulco, Cuernavaca, Jalapa (Hége), Chilpancingo, 
Tepetlapa, Soledad and Amula in Guerrero, Atoyac and Fortin in Vera Cruz (H. H. 
Smith); GuateMaua, Cerro Zunil, San Joaquin, Chiacam, Cahabon (Champion); PanaMa, 
Bugaba, Volcan de Chiriqui, Los Remedios, Tolé ( Champion). 
There can be little doubt that Chlamys conspersa, Mannerh., and Exema dispar, Lac., 
are one and the same species; but an examination of the type is necessary to settle 
this point. Numerous and very variable specimens have been received from the addi- 
tional localities quoted. The insect proves to have a very extended range. 
Exema punctatipes (p. 89). 
To the localities given, add :—Mexico, Vera Cruz (Sallé), Atoyac (H. H. Smith) ; 
Panama, Volcan de Chiriqui, Tolé, Taboga Island (Champion). 
The numerous specimens received agree well with Lacordaire’s description. 
Exema complicata (p. 89). 
To the Guatemalan locality given, add :—El Tumbador (Champion). 
4, Exema octocarinata. 
Black; thorax with eight ridges, the two lateral ones interrupted; scutellum not visible; elytra each with 
four longitudinal coste on the disc and some shorter coste towards the apex, the interstices strongly 
punctured anteriorly. 
Length 4—# line. 
Hab. Panama, Volcan de Chiriqui (Champion). 
This small species differs from all its allies in the absence of a visible scutellum, and 
a new genus seems almost required for its reception. The head is minutely granulate 
and finely punctured. The thorax has its median lobe prolonged and acutely pointed 
and extending to the usual position of the scutellum (the species thus differing from all 
others of the genus known to me); on the disc are four strongly raised coste radiating 
from the base towards the anterior margin, the sides being furnished with a short ridge 
anteriorly and a longer but interrupted one placed more inwards; the interstices are 
impressed with single rows of fine punctures. The scutellum is not visible. The 
elytra have altogether about eight longitudinal coste, of which three are entire; the 
first two coste are joined below the middle near the suture by a short transverse ridge, 
and the second is also joined to the third and fourth by an oblique transverse ridge 
before the middle; the posterior portion of the elytra is furnished with numerous 
shorter longitudinal coste; the interstices between these latter are foveolate-punctate, 
while those of the anterior portion are closely and strongly punctured ; the suture is 
