40 ORDER—COLEOPTERA. SECTION—PENTAMER A. FAMILY—CETONIIDYE. SUB-FAMILY—CREMASTOCIIEILIDES. 41
SPECIES 10 (55)—CCENOCHILUS ARMIGEK.
PLATE XII, FIO. 2.
Niger, f i x nitidus, punctatissimus; elytvis eostatis, sutura et eostis iinpuiictatis, interstitiis diiplicato-striolatis
et quasi coriaeeis, lineis brcvissiinis aciculatis obtectis; pronoto snhrotundato angulis lateralibus posfcicis vix
proniimUis, tibiis 4 postiois maris caleari long-o et crasso retlexo iutus armatis; clytroriim apieibus intus paullo
angulatis.
Long. corp. liii. 7 ; lat. burner, elytr. fere lin. 3.
Habitat; Zulu, Africa Merid, In Miis. Ilopeiano Oxoniie et Sbeppard.
The remarkable armature of t i e four bind legs of the male of this species distinguishes it from every Icuowu
Coleopterous insect. It is blacli, with a sHgbt castaneous tinge on the elytra, antennte, and body beneath. The
bead is rounded in front, and has a raised ridge between the eyes. The prothorax is nearly circular, the two
posterior lateral ang-les being scarcely produced ; the lateral margins are slightly deflexed. It bas a fine
central impressed line beyond the middle, and two impressions opposite the sides of the scutellunij which arc
rather deep, wide, and obliquely striolated. The seutellum is punctured at the base, and finely striolated behind.
Each of the elytra has three elevated costiE, which are nearly impunctate, as is also the portion of each adjoining
the suture, the apex of which is slightly acuminated. The intervening spaces of the elytra have a coriaceous
appearance from being covered with an intinite number of minute acienlated lines close together. The antenna;
(fig. 3 a) have the third, fourth, and fifth joints marked with fine longitudinal lines on the upper side, whilst
they are smooth on the under side. The mentum is oblong, being twice as long- as broad, slightly dilated at
the sides behind the middle; the fore margin emarginate in the middle; and with the anterior lateral angles
rounded off. The fore tibias in the male arc dilated at the outer extremity^ where they are notchcd so as to
form two obtuse teeth ; the four posterior tibiie are furnished at the extremity on the under side with a long,
obtuse, slightly curved spine, which is directed backwards, the two ordinary apical spurs being of the usual
small size. The abdomen of the male has the second, third, fourth, and fifth segments marked with an oval
shallow impression, and the podex is vertical and not convex, and covered with fine aeiculated transverse lines
(fig. 3 i, seen from behind); the two posterior spiracles not being greatly enlarged. The tarsi are flat and
rather broad, with short straight ungues. The epimera and sides of the metasternum are clothed with greyish
luteous hairs.
SPECIES 11 (56)—CCENOCHILUS NILOTICUS.
PLATE XII, PIG. 11.
Niger, subnitidus, punctatissimus; capite inter partem anticam oculoram biimpresso; prothoraee fere eirculari,
linea tenui media longitudinali et impressionibus duabus ovalibus ante seutellum notato; elytris costatis,
interstitiis longitudinaliter duplicato-striolatis ; pedibus posticis inermibus ; antennis et capite subtus piceis.
Long, eoi-p. lin. 6 i ; lat. humer. elytr. lin. 2|.
Habitat; ad Nilum album, Afric® tropic. In Mus. D. Sheppard.
This species might at first sight appear identical with C. armiger., but the simple feet and some other
characters at once distinguish them from each other. The upper surface is black and glossy; the head and
thorax is thickly covered with small round punctures; the elypeus is dilated on each side, in front of the
insertion of the antennse; there are two nearly rounded impressions between the anterior part of the eyes, and
a line between tbeir middle part. The mentum (fig. II a) is oblong, not much longer than wide, with the fore
margin emarginate in the middle, and the anterior lateral angles rounded off. The prothorax is nearly circular,
the greatest width being a little behind the middle; the hinder lateral angles are rounded oif, and the hind
margin in front of the seutellum is very slightly emai-ginate. The lateral margins are reilexed; the central
longitudinal impressed line docs not extend either to tlie anterior or posterior margin, and there is an oval
impression on each side opposite the anterior angles of the seutellum, which arc marked with oblique strioloe;
the elytra have three raised eostte, which, as well as the sides of the suture, are punctured, the interstices bring
filled with very fine aciculated punctures, which towards the base are more cicatricose. Tlie podex ia convex,
preceded on the under side (fig. 11 II c, seen sideways) by a shoi't joint, which bas its hinder margin a little
produced in the middle, followed by the deep open anal impression. The under surface of the abdomen of the
male has the second, third, fourth, and fifth segments with a broadly oval depression in the middle.
SPECIES 12 ( 5 7 ) -COENOCHILUS SULCATUS.
PLATE XI, FIG. 10.
Obloiigus, subangnstus; elytris depressis; fusco-niger subtus luteo-setosus ; antennis nigris clava pieca; clypeo
quadrato antice sinuato ; prothoraee rotnndato sulco longitudinali medio (prassertim postiec) impressiombusque
duabus snbobsoletis prope seutellum notato ; elytris longitudinaliter canaliculatis ; disco sub Icnte subtilissime
lineato-punctatis vel coriaceis ; femoribus anticis crassis, supra in mare obtuse scrratis; tibiis anticis apice ddatatis
et obtuse bideutatis, tibiis anticis in foemina acute bidentatis; pygidio maris convexo, foeminoe impressione
rotunda notato.
Long, coi-p. lin. 7|-9.
Habitat ; Sierra Leone et Africa Austr.
SYN. : Ocenodiilus sulcatus. Schaum, Germar Zeitsohr. iii. p. 270 ; Burmeister, Handb. iii. p. 666.
Cremast. maurus. Gory et Perch. Mon. Cet. p. 113, pl. XV, fig. 6 ; Schaum, Ann. Soc. Eut. France, 1844,
p. 396 (nec Cet. maura Fabricius).
The general appearance of this species is dull and obscure black ; the clava of the antennse is pitchy ; the
head and pronotum are eovcred with very minute grey pubescent seta), and the elytra with the same, but more
widely scattered; the under side of the body is also similarly clothed, the metasternum being more woolly in
its appearancc ; the hairs of the hind tibiaî are also luteous grey. The prosternum is armed with a strong
deflexed spine in front of the anterior tibias ; the anterior tibia; are strongly bidentate at the tip in the
female, and the pygidium is marked with a large round impression.
These notes were made from an examination of the original type of Or. maims of Gory, from the Cape of
Good Hope, communicated by Dr. Schaum, who observes of it that it ' est un peu plus grand que le Sénégalensis,
le corselet moins convexe, couvert d'une ponctuation beaucoup plus serrée, les côtés des élytres sont
plus saillantes et également couvertes d'une ponctuation réticulée.'
Specimens from Western Africa and Sierra Leone are in the Collections of W. W. Saunders, Esq. and Count
Mniszech, which I cannot specifically distinguish from Gory's South African type. One of these, which I
apprehend are males, is represented in pi. XI , fig. 10. These specimens are nine lines long (three-fourths of an
inch). The length of the elytra is nearly equal to twice the width of the broadest part of the prothorax; at
tbeir base the elytra are marked with more decided oval punctures, often pointed at the tips behind, each
puncturc having a very minute central dot. The suture is rather elevated, and more cleariy punctured ; there
is an impressed line running on each side parallel with the suture, and on the disc are two longitudinal, not
deeply marked sulci, the sides of the elytra parallel with the lateral margin being rather elevated. A portion of
the disc of the left elytron, highly magnified, is represented in fig. 10 a, to shew the intricate minute impressions,
not visible except under a lens, which give a shagrcened appearance to the elytra. The metasternum and its
sides are clothed with short luteous setoe. The body beneath is black, glossy, and slightly punctate, and the
abdomen is very convex on its ventral surface ; the penultimate segment of the abdomen above is transversely
marked with very minute strioloe, and is somewhat carinated longitudinally down the centre. The pygidium
is quite convex, covered with extremely minute and closely arranged irregular (but for the most part transverse)
strioloe ; amongst which are some distant minute circular punctures, emitting fine short luteous seta;. The fore
legs are strong, the femora having the anterior margin obtusely serrated and setose. The anterior tibia; are
obtusely bideutate at the tips, having also a conical tubercle on their under surface, a little below the insertion
of the 5-jointcd anterior tarsi (fig. 10 ¿). The posterior tarsi are inserted at a little distance before the
extremity of the tibioe, which is excised for this purpose on its outer edge ; the spurs, which are broad and
short, arise below the insertion of the tarsi.
SPECIES (13 58)—COENOCHILUS EMAEGINAT0S.
PLATE XII, FIG. 1.
Niger nitidissimus ; capite et prothoraee puuctatissimis ; elypco subrotundato ; prothoraee antiee rotundato,
supra depresso, pone medium latiori, angulis posticis rotundatis, utrinque impressione minime profunda inter
emarginaturam ct augulos posticos notato, margine postico in medio late emarginate, lateribus capiteque
i'l ii V I