COLEOPTERA. 135 
Avorium, Fab.—Ores, Web. * 
Those in which the two last joints of the maxillary palpi differ but 
little as to size, and in which the antennze, composed of cylindrical 
joints, are at least as long as the body, have been distinguished by the 
generic name of 
LurErus, Geoff. + 
The others, which, with similarly terminated palpi, have shorter 
antenne, composed of obconical joints, form the true Gallerucz, or 
the 
GaLEruca, Geoff. 
Such are the 
G.calmariensis ; Chrysomela calmariensis, L.; Oliv., Col: VI, 
93, iii, 37. Three lines in length; yellowish or greenish above; 
three black spots on the thorax; another, with a stripe of the 
same colour, on each elytron.—This species, together with its 
larva, is found on the Elm; in certain seasons, when unusually 
abundant, it strips these trees of their foliage, and does as much 
mischief as certain caterpillars. 
G. tanacett ; Chrysomela tanaceti, L.; Oliv., Ib.,1, 1. Oval, 
oblong, very black, and but slightly glossy; elytra deeply punc- 
tured and without striz. On Tansy ¢. 
The jumping Galerucitz, or those whose posterior thighs are inflated, 
and which are distributed by Fabricius among the genera Chrysomela, 
Galeruca, and Crioceris, are united in one, that of Altica or Haltica, 
in the systems of Geoffroy, Olivier, and Illiger. These Insects are 
very small, but are ornamented with various or brilliant colours; 
they jump with great quickness and to a very great height, and fre- 
quently destroy the leaves of those plants on which they feed. Their 
larvee devour the parenchyma, and there undergo their metamorpho- 
sis. Certain species, those particularly which are commonly termed 
garden fleas, are very injurious in both states to our kitchen gardens. 
Of all countries, South America furnishes the greatest number. 
Illiger, in his Entomological Magazine, has published an excellent 
Monograph of these Insects, which he arranges in nine families, and 
some of which, in our opinion, should form separate subgenera. 
Those of the subgenus 
OcroconoreEs, Drap.§, 
Are removed from all others by the form of their maxillary palpi. 
As in Adorium, the penultimate joint is thick and turbiniform, and 
the last very short and truncated; the terminaticn of the labial palpi 
is acuminate or subulate, as in all the following subgenera; but here 
the maxillaries are similarly formed, or are also subulate at their ex- 
* Web., Observ. Entom.; Lat., Gener. Crust. et Insect., ITI, p. 60, and I, xi, 9; 
Oliy., Col., V, 92, bis; Scheenh., Ib., II, p. 230; Fab., Syst. Eleut. 
7 Oliv., Col., IV, 75, bis; Schoenh., Ib., p. 292, 294; Germ. Insect. Spec. Noy., 
p. 598. 
ft See Oliv., Col., Ib. 
§ Ann, des Sc, Phys., IIT, p. 181. 
