312 MR. A. MURRAY’S MONOGRAPH OF THE FAMILY OF NITIDULARIA. 
longer than the third, the fourth to the eighth inclusive gradually becoming longer and 
thicker, and the ninth to the eleventh forming a compressed oval club. Labrum rounded 
in front. Mandibles short, strong, thick at the back, curved, bicuspid at the point, and 
in some species subserrated behind. ‘Lobe of the maxille small, strongly bearded on its 
inner side, and in some species (C. castaneus and C. megacephalus, which should, per- 
haps, form a different genus) with a curved tooth behind. Maxillary palpi with the first 
article small, second large, third smaller, and last elongate and as large as the two pre- 
ceding united. Labial palpi short, with the first joint small, second a little longer and 
usually thicker than the last, which is somewhat oval. Ligula oval, keeled, with cori- 
aceous paraglossz ciliated on their inner side; in some species with short, rounded, mem- 
branous lobes. Mentum transverse, varying in form in the different species. Prothorax 
a little longer than broad, and slightly narrowed behind. Scutellum large, transverse, 
subtriangular. Elytra truncate, leaving the last three abdominal segments exposed. Legs 
short and robust, thighs slightly canaliculated below for the reception of the tibie ; 
posterior tibize furnished with small spines on their external margin, and no channel for 
the reception of the tarsi, which are feeble—their first three articles very short, dilated, 
and furnished with long hairs below, the fourth minute, the last long, and with the claws 
simple. Prosternum flat. Mesosternum broad, large, and flat, on the same level as the 
prosternum and mesosternum, merely divided from them by sutures. Middle coxæ more 
widely separated from each other than either the anterior or posterior. The first two 
abdominal segments very short, the rest longer; a small additional ventral anal segment 
in one sex, probably the males. Fimbriz narrow, subparallel, with a very slight curve 
in front. 
BRACHYPEPLUS. 
Position and Affinities.—Apociuvs. CILLAUS. ITHYPHENES. 
ORTHOGRAMMA. 
* Inner side of maxille with a curved basal tooth. 
1. CILLEUS CASTANEUS. (Plate XXXV. fig. 2.) 
Laporte, Etud. Ent. 133 (1835). 
Lote dilute castaneus, leviter punctatus; thorace subquadrato; elytris longis, Fig. 75. 
sat fortiter striato-punctatis, postice levioribus, interstitiis leviter punc- 
tatis. Long. 4-5 lin., lat. 3-12 lin. 
Habitat in Madagascaria. 
Elongate, flat, shining, finely punctate, pale chestnut-coloured. Head rather thickly 
and distinctly punctate, transversely depressed and bi-impressed in front. Labrum 
punctate, with a smooth line up the middle diverging in front. Thorax subquadrate, 
with all the angles rounded, sparsely and irregularly finely punctured, with a smooth 
longitudinal impunctate space in the middle; sides declinate and margined, posterior 
angles with an impression close to the angle. Scutellum transversely triangular, slightly 
rounded, impunctate, except very slightly along the sides. Elytra a half longer than the 
thorax, with the sides inflexed and the suture depressed ; finely punctate-striate, the 
stria next the suture deeper and wider than the others, especially at the base; all the 
