Famity—CETONUD A. Sup-Famity—CREMASTOCHEILIDES. 15 
are very broad and raised, the suture near the scutellum is depressed, but beyond the middle it is elevated into 
aridge. The terminal part of each elytron is thickly covered with very fine transverse striole, this part being 
separated from the dise 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; the breadth of this part equals the length from the front of the clypeus to the base of the scutel- 
lum. The breadth of the shoulders of the elytra equals their entire length, including that of the scutellum. 
The maxille (fig. 1@) have the apical lobe strong and sickle-shaped ; the inner lobe has the 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 maxille. The mentum is oblong (fig. 14), widest at the place of insertion of the palpi, the anterior part 
obliquely truncate, and the apex subemarginate. 
Species 17 (19).—MACROMA TRIGUTTULATA. Mohnike. 
(Arch. f. Naturg. 1871, 1. p. 311.) 
«M. aterrima, nitida, clypeo margine antico reflexo, medio elevato, punctato ; thorace disco minus, lateribus 
plus punctato, glabro, antice flavo marginato, postice guttulis tribus flavis, quarum media ante scutellum sita 
minor ornato; elytris glaberrimis abbreviatis seriatim punctatis, ante apicem rotundatam, crista transversa 
parum prominente distinctis, pygidio carinis tribus longitudinalibus, medio valde prominente ; parapleura flava ; 
abdomine, pectore, pedibusque concoloribus, punctatis ; processu mesosternali brevi obtuso, apice dilatato.’ 
Long. mill. 14. 
Habitat ; insula Sumatra. 
Genus 4—MACROMINA. Westw. Gen. Nov. 
Corpus oblongo-ovale, convexum, elytrorum sutura subdepressa. Maxille galea valida elongata falciformi, 
apice acuto integro, mandone bidentato dente supero majori acuto, infero parvo (pl. VII, fig.3 a); mentum 
oblongum, medio externo angulato setoso, margine antico parum emarginato (fig. 34; 3c, e latere visum). Pro- 
notum hexagonum, lateribus in medio angulato-productis. Tibiz antice bidentate. Metasternum in medio 
antice in mucronem obtusum inter coxas intermedias porrectum. Elytra pone humeros valde emarginata, sin- 
gulis versus suturam in carinam longitudinalem paullo curvatam e scutelli lateribus ad tubereulum subapicalem 
elytrorum extensam elevatis. Abdomen ad basin subtus haud depressum ; spiraculis duabus apicalibus conicis ; 
pygidium in medio carinatum et utrinque tuberculo instructum. 
I have ventured 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. 
Srecrzs 1 (20)—MACROMINA ANGULICOLLIS. 
Puate VII, Fie. 3. 
Oblonga supra subdepressa, nitida punctata, clypeo subrotundato, margine antico elevato, prothoracis late- 
ribus in medio angulato-prominentibus, margine postico antico paullo latiori, fere recto, medio disco in carmam 
tenuissimam elevato, humeris elytrorum elevatis, sutura versus basin depressa sed ad apicem elevata; nigra, 
pronoti linea tenui media dorsali lateribusque anguste sanguineis (his punctum nigrum ante medium inclu- 
dentibus) scutello, lineisque duabus angustis in singulo elytro (ante apicem striola transversa conjunctis) 
sanguineis ; elytris punctatis, linea tenuissima sutura proxima et parallela, lateribusque striolis transversis 
omnino tectis. 
Long. corp. lin. 6; lat. humer. elytr. lin. 2}. 
Habitat ; prope lacum N’gami, Africa. In Mus. Hopeiano Oxoniz. 
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. The two terminal spiracles of the abdomen are prominent, and the pygidium is raised so 
as to form three obtuse tubercles. 
