190 Buacksurn anp SHARP—On some New Species and Genera of Coleoptera. 
genera near Rhyncolus, be correctly associated with what he considers to be the 
true Rhyncoli, but the species comes so near to the New Zealand Phleophago- 
soma that I think it may be placed in that genus: it differs slightly from the 
New Zealand P. dilutum in that the third tarsal joint is not broader than the 
second, and that the front and middle coxze are more widely distant. 
Pseupouus. (New generic name.) 
The second species of Rhyncolus described by Boheman (under the name of 
R. longulus) is so distinct as to require a new generic name, for it apparently _ 
cannot be associated in any of the numerous genera recently proposed by Mr. 
Wollaston. It is of very elongate form; the eyes are remote from the margin of 
the thorax, and are coarsely facetted; the rostrum is largely developed, and its 
apical portion is evidently broader than the basal; the third joint of the tarsi is 
broad and deeply lobed, the fourth stout and parallel (thatis, not at all more slender 
near the base), the front coxee are widely separated, the middle and hind coxee still 
more widely, the hind ones scarcely more distant than the middle ones. The male 
is of more elongate form than the female, and the apical portion of its rostrum is 
rather more dilated, the base of the ventral segments is rather more hollowed, and 
the apical segment longer, and with a patch of pubescence along its hind-margin 
on either side of the middle. 
D.S. 
Do.icHorTeLus (noy. gen.) Cossonidarum (?). 
The affinities of the minute insect for which I propose this name are not quite 
clear to my mind, but I have concluded that it is most naturally placed among the 
anomalous genera that appear to be connecting links between the Cossonide and 
Scolytide. The following, as far as I can ascertain them without dissection, are 
its characters. 
Head and rostrum not clearly distinguishable ier se, the latter being merely 
avery short and scarcely narrowed prolongation of the former. The head 
(including the pseudo-rostrum under the term) is not much less than twice as long 
as broad, and has parallel sides. The antennze are inserted very little behind the 
front of the head (at a distance in front of the eyes nearly equal to the diameter 
of the eyes) in the sides of the pseudo-rostrum. The palpi are distinctly visible, 
but are very short, and I have not succeeded in making a satisfactory study of 
them; I can see, however, that they are somewhat cylindric in form, with the 
apex more acuminate. The antennal furrows are deep and oblique, passing below 
the eyes and underneath the head. The head does not appear to be at all 
retractile, neither is it vertical, but continues the plane of the thorax, to which it 
is closely applied at the base, and of about equal width; its central suture on the 
