Genera of the Cossonidce. 517 
wide geographical range, tlioiigli it is perhaps more 
strictly tropical than Pentar thrum. At any rate one of 
the species now before me is from Cuba, and another Avas 
captured by Mr. Wallace in Makian — one of the islands 
of the Malay archipelago. 
16. MiCEOCOSSONUS {nov. gen.). — The minute Cossonid 
(which was taken by Mr. Wallace at Saylee on the north- 
west coast of New Guinea, and which has been communi- 
cated by Mr. Pascoe) from which the characters for the 
present genus have been drawn out, is manifestly a good 
deal allied to Stenotrupis, — with which it agrees in its 
thickened, elongate, greatly exserted head, its narrow and 
parallel outline, its depressed surface, and in the fact of its 
legs being equally distant at their base. Nevertheless, if 
the example before me may be taken as a type of its 
group, the body is even stiU smaller than in Stenotrupis 
(the entire length being scarcely one line), but relatively 
not quite so slender; its rostrum (which, as in most of the 
members of that genus, is appreciably dilated towards the 
apex) is much shorter and Avicler ; its eyes are considerably 
more developed, and not so flattened ; its elytra are free 
from minute pubescence at their apex ; its antennte are 
inserted very much nearer to the base of the rostrum ; and 
its coxa3 (although, as in that group, equally separated) 
are distinctly more remote. Its general contour and 
outline are somewhat that of an exceedingly diminutive, 
flattened, and pallid Me site s ; but its 5-jointed funiculus 
and the peculiar construction of its rostrum, as well as its 
numerous other features, entirely remove it from the sub- 
family Cossonides. 
17. CossONiDEUS {nov. gen.). — In its comparatively 
large and Cossonus-^^s.Q, body (which is much depressed, 
deeply sculptiu'ed, parallel-fusiform in outline, and of a 
rather pale, though somewhat variegated, hue) the curious 
insect for Avhich this genus is pro]30sed, and Avhich is com- 
municated by Mr. Pascoe as Iiaving been received from 
Champion Bay in western Australia, seems altogether 
anomalous amongst the Pentarthrides ; nevertheless its 5- 
jointed funiculus, and the structure of its robust, parallel 
rostrum are quite in accordance with the members of that 
subfamily. Apart, however, fi'om the characters just 
enumerated, it may be known hy its excessively large and 
