MR. A. MURRAY'S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 317 
second to eighth articles slender, and nearly equal in thickness; second rather small 
and short, widest at the apex, not so long as the third, rather longer than the fourth ; 
third of same form as second, but a little thinner and longer; fourth and fifth equal, 
shorter than second; sixth shorter and thinner; seventh a little thicker, but short; 
eighth the smallest of all the articles, making a slight interruption before the club; 
ninth to eleventh making a small, somewhat rounded club; ninth and tenth shallow, 
short, cup-shaped; and eleventh rounded. Antennal grooves converging. Labrum 
somewhat concealed by the epistome, small, narrow, sharply emarginate, or almost 
bidentate. Mandibles strong, projecting, deeper than broad, bicuspid at the apex, and 
with another tooth a little further back on the inner side. Maxillee thin, hooked at the 
apex, with the inner side fringed with hairs, and at the base a curved tooth. Maxillary 
palpi about the length of the maxillz, slender, the first article small, the second and 
third about equal, and the last article long and ovate. Ligula short, truncate in front, 
with a thin, slender, membranous lobe, like a small maxilla, ciliated on the inner side, 
projecting on each side of the front of the ligula. Labial palpi slender, the first article 
small, second longer, third as long as the second, a little thicker and more dilated on the 
exteriorside. Mentum biemarginate. Prothorax somewhat cordiform, a little longer than 
the head, as broad as it in front, not half so broad at the base. Scutellum semicircular. 
Elytra feebly striate, longer than the thorax, wider than its base, square at the shoulders, 
rounded at the apex, especially on the exterior angles. Abdomen above with the last 
three segments and the margin of the fourth exposed; the sides not straight, each 
segment being rounded on the sides and narrower behind than before; fimbriz of the 
penultimate and antepenultimate segments widest behind, and stretching across the seg- 
ment in front; pygidium with the fimbrize widest in front. Legs with the thighs large, 
flat, and broad. Tibiæ very short and rather stout, without a channel on the outside 
of the apex for the reception of the tarsi. Tarsi slender, except the basal article, which 
is large. 
Position and Affinities —Cirtzvus. ITHYPHENES. ORTHOGRAMMA. 
Cucvusvus. 
ITHYPHENES GNATHO. (Plate XXXVI. fig. 2.) 
Elongatus, valde depressus, nitidus, flavo-testaceus, capite antice picescente, elytris 
apice nigro; capite lato, impunctato, epistomate porrecto et leviter emarginato ; 
thorace postice quam antice dimidio angustiore, elytris breviore et postice angus- 
tiore, impunctato; scutello transverso, semicirculari, impunctato; elytris pone 
medium latioribus, levissime substriatis, striis versus latera et apicem obliteratis, 
versus apicem singulis foveolatis, apice oblique rotundato; abdomine segmentis 
utrinque punctulatis, medio impunctatis. Long. 44 lin., lat. $ lin. 
Habitat in insula Saylu in Nova Guinea. | 
Elongate, very much depressed, shining, yellowish testaceous, with the front of the 
head and the mouth becoming piceous; the elytra with the apieal two-thirds black. 
Antennz» piceo-rufous, with the club dusky. Mandibles nearly black. Head broad, 
VOL, XXIV. 4 2T 
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