5 4 OITDBR—COLEOPTERA. SECTION—PENTxVMERA. FAMILY—CETONTIDiE. SUB-FAMILY—CREMASTOCI IEILIDES.
posterior angles are obtuse, and rather rounded at their tips. The base of the soutelluiu is thickly covered with
minute punctures, each bearing a minute Inteons seta. The elytra are much broader, with the suture and two
eostíE on each moderately elevated, slightly punctured, the punctures emitting luteons sctaj, and the intervening
spaces marked with only a few longitudinally oblique scratches. The pygidium is angulated down
the middle. The three teeth of the anterior tibise are not so strongly developed as in the other specimens.
The abdomen beneath is black and glossy, with the transverse impression between the fourth and fifth segments
but slightly defined.
GENUS 23—CYCLIDIUS.
(MacLeay, 111. Zool. S. Afr. 1838, iii. p. 17.)
Corpus supra depressum, holoserieeum : clypens mediocris, convexus margine antico reflexo ; niterdnm
cornutus ; antenna; articulo basali máximo pìlano ; masilli® galea falciformi acuta, mandona apice valido
oblique exciso et subbidentato (pi. XI, fig. 3 e, fig. Sò); mentum basi angustum (fig. basin masiflarum
hand tegens (fig. 3 í), apice latissimo pateriformi concavo, hujus margine postico acuminato et m dentem
obtusum defiexum producto (fig. 3 a) ; prothoras latior qnam longus, lateribus rotundatis, ad ángulos anticos
vel postieos baud tuberculatus ; prosternum in spinam autice setosam deflesam productnm (fig. 3 o) ; epimera
mesothoraciea supra baud detecta, quadrata plana vertiealia; pedes crassi ; tibia; anticEE extus 3-dentata; ; dente
basali rudimentali ; tarsi breves crassi 5-articnlati, unguibns minimis.
SPECIES 1 (82)—CYCLIDIUS AXILLARIS.
Oblongas, crassus, niger, snpra glaber, snbtus la;vis ; elytrorum tertia parte basali fulva ; elypeo lato, antice
valde reflexo vertice subspiuoso ; prothoraee rotundato ; elytris brevibus parallelis ; pygidio semicirculari.
Long. corp. lin. 9.
Habitat; Cayenne. In Mus. Com. Mniszeeh et A'ill. Neuchatel.
STS. : Cremast. axillaris. Gory et Perch. Men. Cet, pi. XV, fig. 3 ; Schaum, Germar Zeitschr. iii. 260 ; Burmeister,
Handb. iii. p. 676.
SPECIES 2 (83)—CYCLIDIUS ELONGATUS.
PLATE XI, FIG. 2.
Oblongus, niger velutinus ; elypeo antice dilatato, margine reflexo subhifido, angulis anticis rotundatis,
vertice carina tenui tuberculisque duobns notato ; prothoraee rotundato, antice paullo latiori ; elytris parum
emarginatis dorso plano nitido; femoribus tibiis tarsisc^ue brevibus robustis; capite, pronoto, lateribus elytrorum
pygidioqne velntinis, reliquis partibus nigris nitidissimis.
Long. corp. lin. 13.
Habitat; Giiiana, Cayenne.
SYK. : Caonid domjata. Olivier, Ent. I. 6. p. 24, pi. VI, fig. 51 ; Schonherr, Syn. Ins. iii. 135. n o ; Gory et
Perdi. Mon. Cet. p. 111. pi. XV, fig. 2 ; Burmeister, Handb. iii. p. 67s.
VAE. : Cydiclius Nero. Latreille, Kègne An. iv. p. 572, not. 2 ; MacLeay, 111. Zool. S. Afr. iii. p. 17.
Atei-, holosericeus; elytris depressis, apice maculis dnabus sanguineis nitidis.
VAE. : Cyclidiiísplagiatus. Dej. Cat. 3rd ed. p. 1S7.
Tlie head is entire, and rounded in front, with the margin slightly reflexed, and produced into two short
conical points. On the crown of the head is a slight central raised line, behind which are t,wo small raised
tubercles (fig. 3 a, head seen sideways) ; the sides of the head are marked with fine aciculatcd lines. The prothorax
is nearly circular, black, and velvety. The elytra are polished on the disc, with longitudinal rows of fine
punctures. The fore legs are robust; the tiliia; rather bent outwards, with two teeth on the outside, and a third
small rudimental one near the middle ; the ungues are very minute and triangular (fig. 3 e). The maxilla; have the
mando produced at its inner angle into a flattened spine, which is obliquely truncate, and slightly bifid (fig. 3 c).
The under side of the front and middle parts of the head are represented in fig. 3 i, shewing the large mentum,
with its dilated rounded sides, and the dcflexed setose spino in front of the prosternum. Kg. 2d, the mentum,
seen from behind, shewing the narrowed base, which is concealed when at rest by the dilated hind margin of the
disc. The labial palpi have the last joint long and curved.
Plate XI, fig. 3, represents a specimen in the Hopeian Collection, from Brazil. It has the disc of the elytra
glossy, and the ventral surface of the abdomen quite convex. A similar specimen (except that tlie head is more
conical in front, and produced into two more decided erect points) from Eqnador is also contained in tlie Hopeian
Collection, and one from the Upper Amazons is in the collection of W. W. Saunders, Esq. In the former colleetion
are also contained several specimens from Equador and the Amazons, all with the disc of the elytra
polished, and each marked with a large orange-red patch (Cyoliclka Nero). These have also the ventral surface
of the abdomen quite convex, and the front of the head still more conically elevated, with the extremity produced
into two erect conical points (fig. 3 a *). The legs are thicker, and the fore legs have the inner margin of
the tibia; produced near the middle into an obtuse lobe (fig. 3 i *). These are of a larger size (varying in length
from 13 to 15 lines) than the entirely black specimens mentioned above, and, from the increased development of
the frontal horn and lobe of the foro legs, might be supposed to be males.
Two specimens in the Collection of W. W. Saunders, Esq., from Colombia, difl^er from all the rest, in their
smaller size (10 to 13 Unes), and in having the elj-tra entirely velvety black (the scutelhmi alone glossy). They
have tlie head produced and elevated hut very shghtly in fi-ont, as in the first of the above described specimens,
with which in other respects they quite agree. The larger of these two specimens has the legs more robust than
the smaller, the larger one being, as I suppose, the male, although the abdomen is convex; each of the second,
third, and fourth segments is, however, marked with a very minute central longitudinal impression, not visible
in the other specimen.
SPECIES 3 (8-1)—CYCLIDIUS LACOEDAIREI.
PLATE XI, FIG. 3.
E-obustus, niger; capitis elypeo oonico, in cornu erecto parum elavato, apice obtuso producto; prothoraee
magno convexo, laterihus rotundatis; elytrorum disco nitido; pedibus crassis, femoribus anticis clavatis, antice
bi-incisis; tibiis anticis extus subinermibus, intus pone medium in spinam obtusam transversam produetis ;
tibiis 4 posticis ecalcaratis ; tarsis postieis longioribus.
Long. corp. lin. 15.
Habitat; Peru. In Mus. Hopeiano Oxonia;.
SYN. : Ci/didius Lamrdairei. Thomson, Mus. Scient. i860, i, p. 37.
Gyclidms elongatus (mas). Lacordaire, Gen. des Cole'opt. v. iii. p. 553, Atlas, pi. XXXIX, fig. 3, (nec
G-ory et Perch.)
I have here given a figure of an entirely black specimen in the Hopeian Collection from Peru, 15 lines
long, wdiieh differs from all the specimens of C. elongaUis above described in its decidedly more robust form :
the head is much more conical in front, and elevated into a slightly dilated and obtuse horn (fig. 3 a); the prothorax
is larger and much more convex; the disc of the elytra is glossy; the legs are robust; the teeth on the
outer margin of the anterior tibia; seem to have been worn away ; the lobe on their inner side is very large,
and the tarsi, especially of the four hind feet, are decidedly longer than in C. elongatus. Fig. 3 h represents the
maxiUie, 3 c the mentum, and 3 e the anterior tarsus of this species.
GENDS 34—CYCLIDINUS.
Corpus oblongo-ovatuin, snheonvexum, omnino obscurum; caput mediocre convexum; elypeo margine
antico ])arum reflexo, angulis lateraHbus rotundis deflexis (pi. XI, fig. 4 a ) ; antennarum articnlns basalis
magnns, trig-onus ; mandibularum pars externa cornea magna curvata apice acuta, partem internam membranaceam
multo excedente; maxillarum galea curvata apice acuto integro; mandonis lobo apicali parvo curvato;
apice acuto, obliquo, angulo basali in spinam parvam producto (fig. 4 b) ; mentum parte externa maxima
obconiea transversa, lateribus rotundatis, disco concavo, basi obtuse in cornn deflexum sub jngnlo retro produeta