488 JOURNAL OF SCIENCE. 
appropriate ones (eliniphorus and Pogonorhinus). Nos. 912, 
913, and 923 have had a new ‘name (Rhinanisus) coined for 
them. Nos. 917 and 918 have been treated in a similar way. 
A new species (Agastegnus ruficollis) has been made the type of 
another new genus, and with it are associated Nos. 930, 922, and 
933. No. 1305 has been deemed the representative of another 
distinct form (Baorophalus). Pentarthrum asperirostre (No. 921) 
has become Proconus asperirostris. L:uodontus punctithorax is a 
new genus and species. 
I have adopted Pextarthrum apicaleas the typical form of the 
genus. The five following agree with it in having the margins 
of the elytra explanated apically, their relationship therefore can 
be easily perceived. The name Pentarthrum should, in my 
opinion, be restricted to the species from No. 906 to No. 904 ; 
the succeeding four are certainly of abnormal form, and had the 
author (the late T. V. Wollaston) of the original diagnosis of this 
genus considered, as I do, the P. sharpianum the exponent of a 
new genus, I would have placed Nos. g10 and 924 along with it, 
and then made a distinct generic name for P. crenatum. Had 
it been expedient to pursue the course indicated, I would have 
located all the species from No. 910 to 936 after Belinophorus ui- 
grans, so that Sericotrogus subenescens should succeed P. crena- 
lume. 
The student having these remarks and the descriptions be- 
fore him will, I hope, find the nomenclature of a cossonideous 
collection much simplified. 
COSSONID. 
Pentarthrum ferrugineum, n.sp.—Shining, ferruginous, tarsi 
and antennee sub-fulvous. 
Rostrum cylindrical, moderately broad, with a few fine fulvous 
hairs near the sides and apex, rather finely and not closely punc- 
tured, nearly smooth along the middle. Azztenne inserted behind 
the middle, stout, 2nd. joint of the funiculus slightly longer than 
3rd, with fine grayish hairs, club rather short and rounded, obso- 
letely articulated. Pyrothorax longer than broad, triangularly 
ovate, a good deal narrowed and constricted in front, consider- 
ably rounded behind the middle, leaving an obvious space 
between the dilated part and the elytral angles ; plane above, 
its dorsal line smooth, the rest of its surface moderately punc- 
tated, the punctures not confluent. A/Zytra rather short, base bi- 
sinuated, apices not explanate, sub-depressed ; striate-punctate, 
interstices with a row of minute and distant punctures, neverthe- 
less, owing to the sub-crenate punctures in the striz, appearing 
rugulose, the first three reach the apices, but the others are ab- 
breviated and cause ante-apical depressions. Legs moderate, 
tarsi rather pilose. A few fine hairs may be seen near the base 
of the thorax, but none elsewhere. 
When placed side by side with P. zcalandieum the difference 
in size at once strikes the eye, the elytra being notably shorter, 
