224 Mr. J. W. Shipp on a new 
metallic-green colour. Mandibles rather lengthened, curving up- 
wards at apex, not scalloped on the inner edge, a large horn on the 
outer edge near the base, pointing outwards, and a smailer vertical 
one near the apex, very evenly crenulate on the inner edge near 
the base; black, with a splash of metallic-green colour at base. 
Antenne black, club 3-jointed. Trophi pitchy, with yellow pube- 
scence. Thorax of a dull bronzy green, impunctate on disc, but 
with a few very fine punctures on the lateral margins. The sides 
towards the anterior extremity are very strongly emarginate, 
rounded, and dilated upwards, with a rounded depression towards 
the posterior extremity of the lateral margins ; the posterior half 
of the lateral margins being strongly crenulate, with about twelve 
teeth on each margin, narrower in front than behind, bisinuate on 
both; base rather strongly emarginate. Scutellum of a roundish 
triangular form, sparingly punctured ; the dorsal surface of meta- 
thorax is very strongly and thickly punctured, slightly pubescent. 
Elytra as long as the head and thorax together (mandibles in- 
cluded), wider at base than apex: of a most brilliant golden green 
colour at the sides, changing to a lovely crimson and coppery 
hue on disc; glabrous, and impunctate. The lateral margins 
are strongly emarginate and deeply crenulate for some distance 
behind the shoulders, impunctate, but with a few sparse punctures 
on the emarginated sides; two very shallow and almost obsolete 
striz are noticed on each side of suture. Femora same colour as 
body, changing to a crimson hue in centre. Anterior tibize with a 
slight metallic-green colour on outer margin; widened at apex, 
deeply toothed with seven teeth externally, and one tooth on the 
under side at apex ; the indentations between the points are slightly 
crenulate ; the under sides are of a pitchy black colour. Posterior 
tibiz and tarsi black, sparsely punctured, and without the teeth 
that are present in the 9; tarsi furnished on the under side with a 
few brownish hairs. Under surface resembles the upper surface in 
colour. Prosternum shows a narrow keel between the fore legs, and 
the mesosternum is shortly pointed and concave on its anterior 
face; pygidium very thickly punctured, and under surface covered 
with a light golden pubescence, and sparingly punctured. Long. 
corp. 26 lines (2§ in.). 
Hab. North Australia (Boucard, 1889); in Mus. 
Hope, Ox. Univ. Museum. 
The genus Phalacrognathus was founded by McLeay 
(Trans. Linn. Soc. of New South Wales, 1885, x., p. 474) 
on a single ? sent to him by Irench from N. Australia, 
the ? being described by him as Lamprima muelleri on 
