162 Notes on Australian Coleoptera. 
sects I mention are long, rather cylindrical, with the thorax 
rather oviform, and very little broader in front than behind ; 
the elytra are elongated, and almost cylindrical. 
M ecodemua newm (“ White, Voyage of Erebus and Terror, 
Ent.,” page 5, pl. 1, fig. 8): lenoth 8’; this insect is of a dark 
copper colour, with the parts of the mouth and thighs 
brown ; the strize of the elytra are sometimes very feeble. 
Common in the mountains of New Zealand, near Dunedin. 
Mecodema Incequale: length 7’ ; nearly allied to Zneum, 
but shorter and broader ; head large, with longitudinal striole 
on the inner side of the eyes, and a transverse series of large 
punctiform impressions on the forehead; thorax cordiform, 
covered with striole, which are transverse on the disk, and 
longitudinal towards the anterior margin ; a number of long 
straight hairs are dispersed on its surface; elytra oval, 
covered with strong longitudinal striz, which are very irre- 
gularly interrupted laterally and behind ; inferior side of 
the body, legs, mouth, and antenne black, the latter hirsute, 
except on the basal articles. 
New Zealand, Dunedin. 
Mecodema Elongatum : length 64’; of a brilliant copper 
colour; general form elongated, ‘with the sides almost 
parallel : head with two strong impressions in front, and a 
transverse band of small punctures behind the eyes ; thorax 
rather cordiform, larger than broad, narrower behind, with a 
transverse impression on each of the anterior angles, and a 
deep elongated one on the posterior ; the surface presents 
faint transverse striole, and its posterior part is sometimes 
rather ruguous; elytra:long, covered by striz formed of 
strong punctures; near the lateral margin is a smooth space, 
on the inner side of which extends a longitudinal row of deep 
punctiform impressions ; lower side of the body, legs, and 
mouth black ; the end of the palpi red ; some long straight — 
hairs are dispersed on the elytra, and still more on the thorax. 
New Zealand. 
Note.—Some specimens in Dr. Howitt’s collection are 4 
little narrower than the others; I believe this difference to 
be sexual. 
Note.—A third form now appears, which is easily distin- 
guished by a very large head, and the body considerably 
depressed ; the thorax very cordiform; the elytra oval. 
These insects are very much like Pereus, and partake also 
of Siagona, but are not so depressed ; the labrum is emar o1- 
