SCAPHIDIUM. 159 
but have not yet found so clearly defined as it is in these two. My descriptions of the 
generic anatomy have all been taken from fresh preparations made expressly for the 
present work. 
The genus Scaphiwm, which is not represented in our region, differs from every other 
which I have examined in having the base of the pronotum incumbent on the shoulders 
of the elytra, with the posterior angles entirely rounded off. 
Since the publication of Gemminger and Harold’s catalogue a very large number of 
species of this family have been described (no less than forty in Scaphidium alone) by 
Reitter, Réné Oberthiir, and others. 
Most of the genera appear to be very widely distributed. 
The different species frequent fungoid growths on decaying timber. 
SCAPHIDIUM. 
Scaphidium, Olivier, Ent. 11. 20, p. 1 (1791). 
Antenne 11-jointed—1 and 2 moderately large; 3 longer than the rest, very slender; 4 and 5 very slender, 
shorter than 3; 6 incrassated towards the apex; 7-11 moderately incrassated, forming an elongate 
submoniliform club, Maaillary palpi slender, 4-jointed—1 very small; 2 and 8 moderate, subcylindric, 
widest towards the apex; 4 much longer than 3, conical. Labial palpt moderate, subcylindric, 
3-jointed—I1 small; 2 moderate; 3 obtusely conic, incurved. Zabrum transverse, much dilated, rounded, 
and broadly transparent at the sides, deeply emarginate in front, with a few strong sete on the disc, and 
setose on the inside. Hpistoma very distinct. Mandibles very robust, bifid at the apex, furnished with a 
ciliated appendage in front. Mawille robust, bilobed ; outer lobe short and broad, densely fringed with 
sete at the apex; inner lobe robust, with incurved sete at the apex. Mentum rather large, nearly 
quadrate, with the anterior margin rounded. Labiwm very short, subquadrate, not projecting beyond the 
mentum. Lingua transverse, much expanded anteriorly, the sides not rounded but slightly concave, strongly 
concave in front, setose on the inside, with a very strong medial costa. Prosternum large ; episterna very 
distinct, large, and triangular; epimera large and broad, rather short. Mesosternum strongly carinated 
between the anterior cox; epzsterna small, produced at their outer extremity ; epimera small and narrow, 
produced at their outer extremity, and widely remote from the coxal cavities. Metasternum rather long, 
divided by a deep medial suture, much depressed posteriorly, each side of the posterior margin much 
rounded, and sometimes densely covered with hair; episterna moderate, rather narrow, not extending to 
the coxew ; epimera very large and broad, much inflected beyond the episterna. Venter composed of six 
segments—1 and 5 long; 2,3,4,6 short. Legs generally long and slender; tarsi 5-jointed—1 the longest. 
Coxe: anterior nearly contingent, prominent; intermediate rather widely distant ; posterior remote. 
This genus contains about sixty-five described species, and is very widely distributed, 
though more numerously represented in tropical than in temperate regions. 
I have to notice eight species from Central America; six of these are described 
as new. 
Epitome of the Species. 
L.c.6mm. Ovate, rather depressed, remotely punctured, red, with two spots on 
the thorax and the disc of the elytra black; legs red, with the tibiz black ; 
antenne slender, red, with the club black. . . . ... . - marginatum. 
L.c.5 mm. Broadly ovate, not depressed, faintly punctured, entirely red: thorax 
with the basal row of punctures distinct; legs red; antennz red, the club black wnicolor. 
