CHAM PION—COLEOPTERA ; CURCULIONID # 459 
broad, the strong subapical constriction leaving a collar-like anterior margin. Elytra 
rather more than three times the length of, and considerably wider than, the prothorax, 
attenuate at the apex ; with closely-packed rows of coarse, oblong punctures placed in 
rather deep strive, the very narrow rugose interstices somewhat convex, 2 and 3 becoming 
more prominent on the apical declivity. Beneath somewhat shining, closely punctate ; 
ventral segment 1 shallowly sulcate down the middle. 
Length 2 mm. 
Loc. Seychelles: Silhouette. 
One example, found on Sept. 6th, 1908, at Mare aux Cochons. The insect super- 
ficially resembles a narrow Monotoma. 
PENTARTHRUM. 
Pentarthrum Wollaston, Ann. Mag. Nat. Hist., (2) xiv. p. 129 (1854); Trans. Ent. 
Soc. Lond., 1873, pp. 13, 446, 513. 
Four species from the Seychelles are referred to this genus, type P. huttoni (which 
is probably an exotic form introduced into Europe), the numerous other ‘‘ Pentarthrides ” 
from these islands being better placed elsewhere. The head-quarters of Pentarthrum 
would appear to be in New Zealand or the Hawaiian Islands. One of the new species 
now added, P. punctatissimum, is remarkable in having an unusually slender rostrum 
in the female. Some of the known forms have an extraordinary wide distribution. 
80. Pentarthrum longicolle, n. sp. (Pl. 24, fig. 42, 3.) 
g. Very elongate, subcylindrical, rather convex, shining, black, the antennee and 
tarsi nigro-piceous. Rostrum very stout, moderately long, widened towards the base, 
coarsely, closely punctate, the punctuation becoming much finer on the apical half, 
shallowly suleate at the base; eyes prominent, the head constricted behind them ; 
antennee stout, joints 2—5 of the funiculus strongly transverse, the club small. Prothorax 
about one-fourth longer than broad, rounded at the sides posteriorly, gradually narrowing 
forwards, and deeply constricted before the apex; coarsely, closely punctate, except 
along a narrow smooth median space. Scutellum minute. LElytra moderately long, 
of the same width as the prothorax, subparallel in their basal half, broadly produced 
at the apex, and with the apical portion narrowly explanate externally ; coarsely crenate- 
striate, the very narrow convex interstices uniseriate-punctate. Beneath very coarsely, 
the prosternum rugosely, punctate; metasternum depressed in the centre posteriorly; 
ventral segment 1 excavate down the middle, 5 with a compressed, smooth, cariniform, 
median ridge. Anterior coxee large, narrowly separated. Tibiz sharply mucronate 
at the inner apical angle, and ciliate on the inner margin near the tip. 
Length 3i1—3# mm. 
Loc. Seychelles: Mahé. 
Two males, one from the Mare aux Cochons district, the other from the forest 
above Cascade. A very distinct form, with an unusually elongate prothorax, a basally 
widened rostrum, and stout antennee. P. longicolle is not unlike the Tasmanian P. nigrum, 
SECOND. SERIES—ZOOLOGY, VOL. XVI. 59 
