146 HETEROMERA. 
1. Echocerus maxillosus. 
Trogosita maxillosa, Fabr. Syst. Eleuth. i. p. 155°. 
Trogosita mavillaris, Beauv. Ins. d’ Afr. & Amer. p. 125, t. 32. f. 4”. 
Gnathocerus mazillosus, Lacord. Gen. Col. v. p. 822, nota®; Wollast. Ann. & Mag. Nat. Hist. 3rd 
ser. vi. p. 49 (1860) *; Col. Atlant. App. p. 61°. 
Echocerus maxillosus, Horn, loc. cit.* 
Hab. NortH America ®—Mexico, Guanajuato (Sal/é) ; GuareMaLa, Paraiso (Cham- 
pion); Nicaragua, Chontales (Belt)—Conompia?: Sour Americal*?; ANTILLES? ; 
Mapverra*®; Canary Isianps. 
This is another species now becoming introduced, through the medium of commerce, 
into various parts of the world. 
2. Echocerus analis. (Tab. VII. fig. 7, 3.) 
Elongate ovate, subparallel, convex, black, shining. Antenne stout, the joints from the fourth becoming 
strongly transverse, the last joint broad and rounded at the apex. Head rather broad, deeply sunk into 
the prothorax, with a few fine scattered punctures, almost smooth, shining ; in the male the lateral mar- 
gins of the front (antennary orbits) extended and foliaceous, reaching more than halfway across the eyes 
(as in Gnathocerus), and rounded externally (as in Echocerus), and the mandibles.armed above with a long, 
suberect, sickle-shaped incurved horn (as in Echocerus), and the space between the eyes transversely raised 
(almost touching the anterior margin of the prothorax) and armed with two rounded tubercles; prothorax 
scarcely broader than long, the sides almost straight, scarcely narrower at the base, feebly sinuate behind, 
the anterior angles obtuse and rounded, the hind angles subrectangular, the base closely embracing the 
elytra, and with a distinct and rather deeply impressed oblique fovea on each side, the surface closely and 
rather coarsely punctured ; elytra the width of the prothorax at the base, the sides almost parallel to beyond 
the middle, regularly and rather coarsely punctate-striate, the interstices closely and very finely punctured, 
the apical third red ; epipleuree not reaching the apex of the elytra; head in front, the mandibles, the 
antennee, and legs, red ; the first joint of the posterior tarsi short, about the length of the two following 
joints united. 
Length 4 millim. (<.) 
Hab. GuateMata, San Gerénimo (Champion). 
One example, found under bark. 
SICINUS. 
Form of Echocerus ; in the male the mandibles armed above with a broad, recurved, suberect horn (broad at the 
base, diverging and truncate at the apex in S. guatemalensis, feebly converging and pointed at the apex in 
S. brevipes), the lateral margins of the front extended and foliaceous and reaching behind about halfway 
across the eyes, and the space between the eyes armed with two large tubercles (in the female with small 
rounded prominences); antenns as in Echocerus, the penultimate joints strongly transverse, the apical 
joint short and broad, and rounded at the apex ; legs short, the femora gradually narrowed to the apex (not 
swollen at the inner apical angle as in Gnathocerus) ; first joint of the posterior tarsi about as long as the 
two following joints united ; epipleure not reaching the apex of the elytra. 
I place two small species from Central America in this genus, which, as we have 
retained Hchocerus as generically distinct from Gnathocerus, it has also become neces- 
sary to separate. One of these species was captured at light, in company with other 
