Notes on Australian Coleoptera. 179 
AMBLYGNATHUS. 
It is with some hesitation that I place the following species 
in this genus, having only one specimen of it, which may 
be a female. 
Ambygnathus Minutus: length 2’; of a brilliant copper 
colour; head very large, with no longitudinal impressions, but 
two punctiform ones between the eyes; thorax semicircular, 
truncated in front,with theanterioranglesadvanced, and havin 
a broad lateral margin; on the middle is a light longitudinal 
sulcate; elytra oblong, rather short, depressed, with the 
humeral angles rounded ; they are feebly striated, and their 
margin is strongly emarginated near the end ; the thighs are 
black ; tibie, tarsi, and palpi brown; antennze black, with 
the first article red. 
King George’s Sound. 
Anisodactylide. 
Two Australian genera have been placed in this family, 
Loxomerus and Lecanomerus ; the first is a curious insect 
from New Zealand, having much resemblance with Nebria ; 
the second has the general appearance of Stenolophus. 
The continent of Australia has also another insect which 
has much more the appearance of a Nebria than the one I 
have just mentioned ; it forms a new genus, 
NEBRIOSOMA, 
Which differs from Loxomerus principally by the absence 
of a tooth to the mentum; this organ is transverse, very 
strongly emarginated, the wings are rounded ; the palpi are 
long, with the first and third articles short, the second and 
fourth long, the latter truncated at the apex ; the maxillee 
are slender, elongated, arched, ciliated inside; the labrum 
very short and transverse; the tarsi have their first article 
longer than the following, the second, third and fourth are 
triangular, the last long and slender, the anterior tarsi are 
shorter and broader than the others; antenne long and 
slender, with the first article stronger than the others, the 
- second is rather shorter than the following. 
The characters of this genus are otherwise the same as 
those of Loxomerus. 
Nebriosoma Fallax: length 4’; head short, eyes prominent, 
