14 OKDEK—COLEOPTERA. SECTION—PENTAMERA.
A specimen from Pachbon, Siam, collected by 51. Moubot, in tbe Museum of W. W. Saunders, Esq., F.ll.S.,
agrees entirely with my typé specimens from Upper India. Another specimen in the same Museum, collected
also by M. Moubot at Laas, differs only in having the disc of the pronotum entirely black, with the yellow
lateral margin much narrowed behind the small black spot which is united to the dark disc of the pronotum.
SPECIES 14 (16)—MACEOJIA FLAVO-GUTTATA.
Atra, nitida, pronoti margine laterali ' anteriori, gnttisque quinque in serie transversa postica dispositis
ilavis.'
' Forme allongée de la seutellata. Couleur generale un noii- très-luisant. Front carine, chaperon largement
rebordé rug-ueus. Corselet à ponctuation fort mais claii'-semée, lisse aux angles antériem-s et devant
l'écusson, celui-ci déprimé. Deux lignes jaunes orangées au bord du chaperon. Angles antérieurs du prothorax
lai-gement colorés en jaune soufre ; cinq taches de cette couleur, plus ou moins grandes, quelquefois se touchant
presque, au bord postérieur. Hanches de la première paire et deux grandes taches, ainsi que deux plus petites
de chaque côté du sternum jaunes.'
Long. 16 mill.
Habitat ; Borneo.
SiTf. : Macroma Jlavo-gutlala. Snellen van VoUeuhoven, Tijdschr. Ent. Nederl. vii. 1864, p. igp, pl. X, fig. 6;
Wallace in Trans. Ent. Soc. 3rd Ser. vol. iv. p. ggo.
SPECIES 15 (17)—MACROMA AUEOEA.
' Elongato-ovata, postice attenuata, fortiter dense punctata, nitida, uigro-brunnea, capite supra, thoracis
lateribus maeulaque oblonga, medio scutello, elytrornm fascia postica ad suturam interrupta maculaque sinuata
ad apicem aureo-purpureis ; epipleuris mesosterno maeulis duabus in medio apiceque abdomine segmento penultimo
margine, pedibus annulla pygidioque maeulis duabus aureis vel aureo-viridis ' (sic).
Long. corp. 7i lin. ; lat. SJ lin.
Habitat; Amhoyna.
SYX. : Macroma Aurora. Motscliulszky, Étud. Ent. vii. 1858, tab. annex, p. 57, fig. 14.
' Cette magnifique espèce de Cétonide ressemble par sa forme atténuée aux Taîniodera, mais son chaperon
arrondi eu avant lui assigne une place à côté du M. seidellata F.'
SPEorES 16 (18)—MACEOMA GLOEIOSA. Molmilte.
(Arch. f. Naturg. 1871, i. p. 313, tab. VII, fig. 7.)
PLATE VII, FIG. 1.
Late ovata, glaberrima, nigra, clypeo rotundato margine antieo parum rcflexo, capite et pronoto sanguineis,
hoc maeulis 9 parvis rotundis nigris, pronoti basi elytrisque in medio basi depressis, humeris elevatis, sutura pone
medium elevata, parte apicali elytrornm transverse striolata et e disco spatio elevato 4-dentato in singulo separata,
pygidio tricarinato.
Long. corp. lin. lat. humer. elytr. lin.
Habitat; Siam (Mouhot). In Mus. W. W. Saunders. Sumatra (Mohnike).
This very striking species is at once distinguished by its great width. It is convex, but with the Ijase of
the pronotum and the scutellar region of the elytra considerably depressed in the centre. Tlie head is convex,
very delicately granulose ; the clypeus rounded in front, with the fore margin slightly elevated ; there is a slight
roimd impression on each side near the base of the antennoj, and a fine impressed line extends backwards from
the same point. The upper side of the head is blood red, but beneath and at the sides behind the eyes it is
black; the antennas have tbe clulj chestnut coloured; the pronotum is very glossy, nearly impnnetate on tlie
disc, with the sides finely but sparingly punctured. The hind margin is eonsideraljly produced over tbe base of
the senteEum. On the disc are nine small black round spots, four on each side, foi-ming an oblique lozenge,
and one in the centre behind the middle. The elytra are very glossy, tbe disc nearly impnnetate, the shoidders
p ' . u f i L Y - C E T O N I I D i E . SUB-FAMILY—CREMASTOCHEILIDES. 15
are very broad and raised, the suture near the seutellum is depressed, but beyond the middle it is elevated into
a rido-e. The terminal part of each elytron is thickly covered with very fine transverse striolse, this part being
separated from the disc by a curious ridge, which is scalloped into four teeth. The pygidium is tricarinated,
the central carina arising- at the base and not reaching the extremity, the two lateral ones arising towards
the middle, and forming two terminal teeth. The body beneath is black and glossy, and in the only specimen
which I have seen the basal segments are convex. The prothorax is subtriangular, with the posterior angles
rounded ; tbe breadth of this part equals the length from the front of the clypeus to the base of the seutellum.
The breadth of the shoulders of the elytra equals their entire length, including that of the seutellum.
The maxillie (fig. 1 a) have the apical lobe strong and sickle-shaped; the inner lobe has tbe terminal tooth
slightly bifid, and there is also a slender spine or spine-like bristle in the middle of the inner edge of this part
of the maxilla3. The mentum is oblong (fig. I i), widest at the place of insertion of the palpi, the anterior part
obliquely truncate, and the apex subemarginate.
SPECIES 17 (19)—MACROMA TEIGtJTTULATA. Mohnike.
(Arch. f. Faturg. 1871, I. p. 311.)
' M. aterrima, nitida, clypeo margine antico reflexo, medio elevato, punctato; thorace disco minus, lateribus
plus punctato, glabro, antiee flavo marginato, postice guttulis tribus flavis, quarum media ante seutellum sita
minor ornato; elytris glaberrimis abhreviatis seriatim punctatis, ante apicem rotundatam, crista transversa
parum prominente distinctis, piygidio carinis tribus longitndinalibns, medio valde prominente •, parapleura flava ;
abdomine, pectore, pedibusque concoloribns, punctatis ; processu mesosternali brcvi obtuso, ápice dilatato.'
Long. mill. 14'.
Habitat; insula Sumatra.
GENUS MACROMINA. Westw. Gen. NOV.
Corpus oblongo-ovale, convexum, elytrornm sutura subdepressa. Maxillfe galea valida elongata falciformi,
apice acuto integro, mandone bidcntato dente supero majori acnto, infero parvo (pi. VII, fig. 3 a ) ; mentum
oblongum, medio externo angulato setoso, margine antico parum emarginato (fig. 3 á ; 3 c, e latere visum). Pronotum
hexagonum, lateribus in medio angulato-produetis. TibisE antic« bidentatse. Metasternum in medio
antice in mucronem obtusum inter eoxas intermedias porrectum. Elytra pone humeros valde emarginata, singulis
versus suturam in carinam longitudinalem paullo curvatam e scutelli lateribus ad tuberculum subapicalem
elytrornm extensam elevatis. Abdomen ad basin subtus h.iud depressum ; spiraculis duabus apicalibus eonicis;
pygidium in medio carinatum et utrinque tubérculo instructum.
I have ventm'cd to propose this new genus for an African species, which agrees with Macroma in its
general details, but differs from the species of that genus in its small size, hexagonal prothorax, and colouring.
SPECIES 1 (20)—MACROMIliA ANGULICOLLIS.
PLATE VII, FIG. 3.
Oblonga supra subdepressa, nitida punctata, clypeo subrotundato, margine antico elevato, prothoracis lateribus
in medio angulato-prominentibus, margine postico antico paullo latiori, fere recto, medio disco in carinam
tenuissimam elevato, humeris elytrorum elevatis, sutura versus basin depressa sed ad apicem elevata ; nigra,
pronoti linea tenui media dorsali Lateribusque anguste sanguineis (bis punetum nigrum ante medium includentibus)
seutcllo, lineisque duabus angustis in singulo elytro (ante apicem strida transversa conjunctis)
sanguineis ; eljd^ris punctatis, linea tenuissima sutura proxima et parallela, lateribusque striolis transversis
omnino teetis.
Long. corp. lin. 6 ; lat. humer. elytr. lin.
Habitat ; prope lacum N'gami, Africa. In Mus. Hopciano Oxonia;.
The only specimen of this interesting little species which I have hitherto seen I obtained from a Collection
received from Lake-N'gami : it is a male, having the basal segments of the abdomen longitudinally impressed
down the middle. Tbe two terminal spiracles of the abdomen are prominent, and the pygidium is raised so
as to form three obtuse tubercles.