species of Heteromerous Coleoptera. 321 
Genus MrGALoPpurys*, 
Head large, but little narrower than the thorax, strongly trilobed 
in front, the mesial lobe the largest, nearly semicircular, but 
having an indistinct angle in the middle: the lateral lobes very 
prominent, recurved and descending posteriorly, so as partially 
to inclose the base of the antenna, and indistinctly encroaching 
upon the fore part of the eye, above which is a longitudinal 
ridge. The eye lateral, tolerably promiment, with the vertical 
diameter the greatest, slightly emarginated in front. 
Labrum small, obtusely poimted in front ; hidden when the jaws 
are closed. 
Mandibles short and stout, very broad at the apex, which is 
strongly notched, and thus divided into two lobes, of which the 
lower one is the largest and longest and truncated at the extre- 
mity, and the upper one is pointed. 
Mazillary palpi moderately long ; the terminal joint securiform, 
and obliquely truncated at the apex. 
Mentum broad, hidmg the maxillz, truncated in front : it may be 
described as hexagonal, with the hinder margin by far the 
longest, and the remaining sides nearly equal to each other. 
Antenne moderately long and slender ; the joimts, most of them, 
of a longish obconic form; the second Joint nearly equal in 
length to the fourth or fifth, the third about half as long again 
as the fourth : from the fourth to the tenth the joints become 
gradually and successively shorter ; the penultimate jomt pre- 
sents a nearly triangular outline, and the last is of a short 
ovate form, and smaller than the preceding ; the terminal joints 
are of equal width, or very nearly so, to the other joints. 
Thorax rather narrow, but little convex above, the width im front 
exceeding the length ; contracted behind and with the angles 
acute: its posterior margin is bisinuated, and applied to the 
base of the thorax : a delicately impressed line is observed close 
to the lateral and posterior margins, which are acute. 
Scutellum small, and rounded behind. 
Elytra soldered together at the suture, distinctly broader than 
the thorax, convex, and of an oblong-ovate form, sinuated at 
the base so as to present an outline corresponding to the 
hinder margin of the thorax ; the humeral angles obtuse, and 
the apex somewhat pointed: they are simply rounded at the 
sides, the lateral keel being only represented by a line situated 
close to the lateral margin, and which can scarcely be said to 
be raised excepting at, and near the humeral angle. 
Legs moderately long and slender, the tibize cylindrical or nearly 
* This name is suggested by the great projection of the lobes of the head, 
which are situated in front of the eye. 
Ann. & Mag. N. Hist. Vol. xvi. 2A 
