CORTICEUS. . 171 
I have not yet seen Alphitophaqus, Scaphidema, or Pentaphyllus from our country, 
Senera represented in North America as well as in Kurope; the Central-American species 
of Scaphidema described by Chevrolat are erroneously ascribed to that genus, and belong 
mostly to Iiodema. 
In many of the genera the antennal joints are more or less serrate within; in some 
cases the outer four, five, or six joints forming a club. The eyes are often very 
' large and oblique, and invariably project beyond the antennary orbits; the trochantin 
is always distinct. In Ziodema and Stenoscapha the mesosternum is broadly produced. 
Certain species of Arrhenoplita (=Lvoplus, Leconte) superficially resemble Peneta of 
the preceding group. 
_ The Eastern genus Ceropria, numerous in species, would appear in great measure to 
replace Platydema in the tropical regions of the Old World. 
By far the greater majority of our species are found under bark, or in fungoid growths 
(in which the earlier stages of these insects are passed) attached to decaying or dead 
trees, often in great numbers; others, Hapsida and Gonospa, on herbage or in the 
curled-up still-attached leaves of fallen trees in forest clearings. The humid forest- 
regions of Central America are especially rich in species of “ Diaperides.” 
\ 
CORTICEUS. 
Corticeus, Piller & Mitterpacher, Iter per Poseganam Sclavoniz, p. 87 (1783) ; Crotch, Trans. Ent. 
Soc. 1870, pp. 46, 47. 
Hypophleus (Hellwig), Fabricius, in Schneider’s Neu Mag. Ent. i. 1. p. 24 (1791); Ent. Syst. i. 
p- 500; Mulsant, Col. de France, Latigénes, p. 250; Lacordaire, Gen. Col. v. p- 838; Horn, 
Rev. Ten. of America north of Mexico, p. 386. 
Species of this genus have been described from Europe, North and South America, 
Mexico, the Cape Verde and Canary Islands, &c. 
The different species are found beneath sappy bark. 
We have to record six from our country, of which four are now described, as it is 
believed, for the first time. 
1. Corticeus rufipes? (Tab. VIII. fig. 4,¢.) 
Hypophleus rufipes, Fabr. Syst. Eleuth. ii. p. 558; Lacord. Gen. Col. v. p. 839, nota’. 
Hab. Mexico (coll. Oberthiir, F. Bates), Teapa, Playa Vicente (Sallé), Cordova 
(Hoge); British Honpuras, Belize, R. Sarstoon (Llancaneaux); Guaremaua, El Tum- 
bador, El Reposo, Las Mercedes, Pantaleon, Mirandilla (Champion); Nicaragua, Chon- 
tales (Belt).—VunezveLa, Cumana, Caracas (coll. Oberthiir); Braziu!, Rio Janeiro. 
A common species in Central America, though not yet received from Costa Rica or 
the State of Panama. Examples from Brazil and Venezuela agree perfectly with those 
from Mexico and Guatemala. 
ZZ 2 
