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318 MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 
impunctate. Thorax in front as broad as the head, behind narrower than the elytra, a 
half narrower behind than before; apex truncate, base slightly rounded, anterior angles 
rounded, posterior obtusely rounded, sides gently curved, impunctate, with a faint dorsal 
line. Seutellum semicircular, transverse, impunctate. Elytra longer than the thorax, 
with the sides and the apex smooth and impunctate, bearing within the shoulders nearly 
effaced traces of eight or nine stri? ; a large fovea on each elytron near the apex just 
within a line drawn straight from the shoulders, which are square, sides gradually ex- 
panding until behind the middle, where they begin to turn in and gradually round-in to 
the suture; margin of the apex and sides rounded and inflexed. Abdomen with each seg- 
ment narrowest at the base and rounded in the middle, so that the sides of the abdomen 
are not even, but a succession of curves; each segment impunctate in the middle, but 
bearing effaced punctures next the sides. Legs with the thighs and the tarsi pale, the 
knees and tibiæ slightly darker. 
From Saylu, one of the New Guinea Islands. Collected by Mr. Wallace. Unique in 
the British Museum. 
Genus ORTHOGRAMMA (op00c, straight; ypauun, a line). 
Corpus lineare, valde depressum. Caput elongatum; epistomate plus minusve porrecto, Fig. 50. 
emarginato et denticulato; oculis parvis, haud prope basin capitis attingentibus ; 
sulcis antennariis brevibus. Labrum integrum. Thorax elongatus, oblongus. Elytra 
striata. Abdomen supra quatuor segmentis ultimis expositis, segmentis omnibus 
fere zqualibus, secundo solum paulo minore. 
Body linear, parallel, flat, and excessively depressed. Head oblong, 
parallel, about as long as the thorax. Epistome more or less projecting, and 
toothed or with one or more emarginations. Every species of the genus 
seems to have a differently formed epistome. Eyes small, far forward, and 
not reaching nearly to the base of the head. Antenne rather stout; first 
article swollen and dilated externally, second shorter, but longer and stouter than the 
third, which is short, moniliform, and a very little longer than the following articles, 
fourth to seventh moniliform and equal, eighth a very little broader, ninth to eleventh 
forming a large oval club. Antennal grooves short, indistinct, and slightly converging. 
Labrum rounded in front. Mandibles with the outer margin thickened, capable of being 
bent downwards so as to be little seen from above, and with two or three teeth. Maxillze 
of moderate size, with a brush of hair on the inner side. Maxillary palpi longer than 
the maxille, first article small, second a little longer than the third, the terminal article 
longest, cylindrico-ovate. Ligula corneous, short, and broad; apex of the paraglossz 
seen projecting behind (Plate XXXV. fig. 5e). Membranous wing or lobe short, broad, 
and curved. Labial palpi short, the second article largest, last article ovato-conical. 
Mentum biemarginate ; a prominent rounded tooth in the middle. Prothorax a little 
longer than the head, scarcely wider than its base, and about the breadth of the elytra, 
nearly oblong, not margined, Scutellum transverse, Elytra striate, not much longer 
than the thorax, with the exterior apical angles rounded and the apex truncate. Abdo- 
men straight on the sides, with all the segments long and nearly equal, the second a 
