ا — 
mcm PF ee —— — 
E eor 5 2‏ 
وو یچو ووت ن د و ز2ز2 2 ز2 2 2 1212 1 1 1 ز 2 ز 2 ز ز 2ز2ز 2 ز2ز2ز2 12 1 12 212 ز 1 ی 
404 MR. A. MURRAY’S MONOGRAPH OF THE FAMILY OF NITIDULARLE. 
Genus TETRISUS (rérpa, four; icoc, equal, —in allusion to the first four segments of the 
abdomen being equal, or nearly so). 
Abdomen segmentis duobus ultimis solum expositis; penultimo fimbriis parvis sed distinctis instructo ; 
segmentis primis quatuor longitudine zqualibus. Ligula minuta, alis membranaceis projectis vel 
fasciculo crinium instructis. Czetera fere ut in Carpophilo. 
Body rather depressed, wedge-shaped. Texture fine. Labrum bilobed. Mandibles 
short, bidentate; inner side slightly bearded. Antenne with the first article large and 
dilated ; second smaller, but still dilated and unequal; third elongate and slender; fourth, 
fifth, and sixth very small; seventh and eighth slightly increasing in size; ninth, tenth, 
and eleventh forming a rounded club. Maxille not broad, bearded at the end and on 
the inner side. Maxillary palpi short; first article minute, second short and small, not 
much dilated, third a little larger, and fourth cylindrico-conical, nearly as long as the two 
preceding articles together. Labial palpi with the first article minute, the second slender, 
and the third broad, large, and truncate. The ligula minute, and the paraglossze in one 
species seem to be little more than a few hairs* ; in the other species they are rather pro- 
minent and somewhat subtriangular. The fimbrize on the penultimate segment are distinct. 
Metathorax without axillary pieces. In other respects almost as in Carpophilus. 
Position and Affinities.—CAnpornrnLus. TETRISUS. TRIMENUS. 
1, Terrisus CHOLEVOIDES. (Plate XXXIII. fig. 2.) 
Oblongo-ovatus, postice attenuatus, subdepressus, subopacus, textura Choleve, subtilis- 
sime creberrime punctatus et cinereo pubescens; nigro-piceus, thoracis margine 
rufescente, ore, antennis pedibusque rufo-piceis; elytris thorace duplo longioribus. 
Long. 13 lin., lat. 3 lin. 
Habitat in Borneo. 
Oblong-ovate, broadest in front, attenuated behind, subdepressed, subopaque, of the 
texture of the Choleve (Catops velox for example), very finely and thickly punctate, and 
closely, shortly, and finely cinereo-pubescent, nigro-piceous or black. Labrum with the 
lobes conical. Head very thickly and finely punctate; mouth and antennze rufo-piceous. 
Thorax transverse, sides rounded and deeply margined, anterior angles rounded, posterior 
angles obtuse; apex emarginate, base slightly bisinuate; disk smooth, equal, and gently 
rounded; apex and sides slightly rufescent and translucent. Scutellum triangular, apex 
somewhat rounded. Elytra twice as long as the thorax, attenuated behind, slightly widened 
_ and more convex behind the middle, sides deeply margined and canaliculated ; apex trun- 
cate obliquely, exterior apical angles rounded, sutural angles rectangular. Abdomen 
punctate and pubescent, narrow behind. Underside piceo-rufescent. Legs rufo-piceous. 
From Borneo. Very rare. I have only seen two specimens, both collected by 
Mr. Wallace. In the British Museum. 
M do not speak with confidence of all the parts of the mouth in this species. I have had only a single specimen 
to examine, and, as sometimes happens, the extreme care which I took to avoid injuring it produced the opposite 
result, and the ligula and maxillæ were damaged in the dissection. A more successful dissection may perhaps show 
ther س‎ the same as in the next species. But, throughout this monograph, I have figured everything exactly as I saw 
1t, not venturing to alter anything to suit my own conceptions. 
