25 
LAMELLICORNES. 
BOLBOCERAS. 
B. Terre-reging, sp. nov. Ferrugineum vel picescens; sat 
nitidum; subtus hirsutum; capite antice crebre subtilius 
granulatim, inter oculos rugulose magis grosse, postice 
sparsissime sat fortiter, punctulato; prothorace crebrius 
perspicue sat equaliter subtiliter punctulato, puncturis 
grossis (his in parte media et in maris parte declivi sparsis 
vel fere carentibus) creberrime fere confluenter intermixtis ; 
scutello sparsim vel obsoletius punctulato; elytris striatis, 
striis punctulatis (his et puncturis postice obsoletis), inter- 
stitiis sat planis ; tibiis anticis extus fortiter 7-dentatis. 
Maris clypeo (ut Bb. proboscidei, Schreibers) longe ultra man- 
dibulis productis, parte producta antrorsum sinuatim 
gradatim angustata et ad basin lamina (hac valde elevata 
superne bifida) armata; prothorace antice abrupte declivi, 
spatio ante declivitatem sat lato planato subsemicirculari. 
Femine clypeo haud producto antice fortiter rotundato, ad 
basin lamina (hac leviter elevata superne bifida) armato ; 
prothorace antice anguste minus abrupte declivi, ante 
declivitatem spatio plano angusto. Long., 9—101.; lat., 
5—ds l. 
This species is distinguished from the other described Aus- 
tralian species of Lolboceras except proboscidewm, Schreibers, by 
the clypeus being produced like a rostrum far beyond the part 
where on the underside the mandibles are inserted. It differs 
from proboscideum in the elytral interstices being evidently 
flatter, and the punctulate strie of the elytra becoming much 
more notably obsolete near the apex. The male differs from that 
of proboscidewm inter alia in the produced part of the clypeus 
being not in the least downward directed at the apex and in the 
erect lanrina at the base of the clypeus being about equal in 
height to the length of the clypeus in front of it,—so that looked 
at from the side the head (in front of the eyes) appears as a 
quadrate rostrum about equal in length and height with its front 
face deeply and roundly emarginate. This same part from the 
same point of view also bears a considerable resemblance in out- 
line to the head of a fish with its mouth widely open. The pro- 
thorax of the male differs from that of proboscidewm in there 
being in front of the vertical declivity a nitid almost levigate 
space whose plane is at a right angle to the plane of the declivity 
and which is marked off from the declivity by a very strong 
furrow; while the corresponding part in proboscidewm is very 
much more punctured, is itself notably declivous (though less 
strongly so than the part immediately behind it) and is not 
separated from the part behind it by a defined furrow. 
