MR. A. MURRAY’S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 407 
angles slightly obtuse. The disk, both of thorax and elytra, is even and regular, without 
depressions. Abdomen finely punctate. 
Mr. Wallace collected a considerable number of specimens of this species in the various 
islands of the Bornean Archipelago, &c., and those from different islands have a slight 
difference in their relative size, breadth, &c.; but I can find no distinctions sufficient to 
constitute a species, except perhaps in one (the following), which is narrower and less 
attenuated behind. 
From Borneo, Aru, Dorey, Morty, Waigiou, Amboyna, Macassar, &c. 
2. TRIMENUS ANGUSTATUS. 
T. adpresso valde affinis; minor, angustior, thorace breviore, et elytris subparallelis ; 
ceteris ut in 7. adpresso. Long. 1j lin., lat. $ lin. 
Habitat in insula Macassar et insula Morty. 
Very closely allied to 7. adpressus. Smaller, narrower, more parallel; the elytra not 
so much attenuated towards the apex as in that species, but parallel until they almost 
reach it; thorax comparatively shorter and broader, slightly narrowed towards the 
posterior angles. 
The gradation between the broadest specimens (widest in front and most attenuated 
behind) and the present species or variety is so gradual, that I have great hesitation in 
proposing this as a distinct species. "There is a slight gap, however, between it and the 
rest, and I have availed myself of it. 
From Macassar and the island of Morty. 
Genus SoMAPHORUS (cna, a body; and $opóc, bearer,—in allusion to the large size of the 
elytra as compared with that of the head and thorax). 
Corpus latum et depressum. Oculi sat magni, basin capitis attingentes. Sulci antennarii breves, con- 
vergentes. Labrum bifidum, in fronte capitis receptum. Sine epistomate. Elytra longa, lata, haud 
striata. Abdomen segmentis duobus ultimis expositis, segmentis omnibus (primo excepto) fere 
zequalibus ; sine fimbriis. 
Body broad, flat, and depressed. Head broad. Eyes rather large, reaching to the base 
of the head. Epistome absent. Labrum with a notch excised in the middle, and received 
into a rounded emargination in the anterior margin of the head (Pl. XXXVI. fig. 7 4). 
Antennal grooves short and converging. Antenne rather long; first article dilated, 
second stout, third longer, fourth to eighth short and gradually increasing in breadth, 
ninth to eleventh forming a large, flattened, truncate club. Mandibles strongly bidentate, 
inner side bearded behind the second tooth. Maxillz narrow, rather long, bearded with 
long hairs at the end and with shorter on the inner side (Pl. XXXVI. fig. 7). Max- 
illary palpi rather slender and small; first article small, second the largest and dilated 
on the outer side, third smaller, and last conical. Labial palpi minute and of nearly 
equal breadth; first article small, second narrow and longer, third of about the same 
length as the second, but a little thicker, ovate, and truncate. Ligula rounded, with 
large rounded membranous lobes or wings nearly straight in front and apparently 
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