COLEOPTERA. 
501 
toothed throughout, or nearly throughout, its whole length, compose a first division, consisting of the 
following suhgenera : — 
Pamborus, Latr., has the mandibles curved, and strongly toothed throughout the whole length ; and the outside 
of the tibiae is produced at the tip into a point. The last joint of the outer palpi is semi-oval and longitudinal. P. 
alternans, Latr., from New Holland. [Several other species are described in a monograph by M. Gory, in Guerin’s 
Magasin de ZoologieJ\ 
Cychrus, Latr., has the mandibles straight, and simply curved at the tip ; the anterior tibiae are not produced 
into a point at the tip ; the tarsi are alike in botn sexes ; the thorax is in the form of a truncated heart, or nearly 
orbicular, with the posterior angles obsolete. [Type, C. rostratus, Fabr. ; a not uncommon British species.] 
Scaphinotus, Latr., has the three basal joints of the fore tarsi of the males dilated but slightly, and in the 
form of a plate ; the thorax trapeziform and broad, with the posterior angles acute, and turned upwards. Cychrus 
elevatus, Fabr. ; North America. 
Sphieroderus, Dejean, has the aspect of Cychrus ; but with the two basal joints of the anterior male tarsi very 
broad, and forming a broad plate. [<S1. Lecontei, Dejean ; North America.] 
[Dr. Flarris has just published (1839) a memoir on Cychrus in the Boston Nat. Hist. Soc. Transactions, in which 
he suggests that the different genera separated therefrom ought to be expunged.] 
A second division is formed of those species which have also the body robust, generally wingless, but 
with the mentum furnished with an entire or bifid tooth, and the mandibles armed with one or two 
teeth situated at the base ; the thorax is in the form of a truncated heart ; the abdomen is often 
oval. 
Tefflus, Leach, has the labrum entire, and the tarsi are alike in both sexes. T. Megerlei, nearly Dvo inches 
long. From the coast of Guinea. The last joint of the maxillary palpi is very large, and hatchet-shaped. [M. 
Brull^ has removed this genus to the group containing Panagseus, with which it agrees in the majority of its 
characters.] 
Procerus, Meg., has the labrum bilobed, with the tarsi alike in both sexes. Carabus scabrosus, Fabr. &c. 
All these species are of large size, entirely black or blue, or green above, with the elytra very much chagrined. 
They inhabit the mountains of the east of Europe, Caucasus, Libanus, &c. 
Procrustes, Bon., has the labrum bilobed, and the tooth of the notch of the mentum bifid ; the fore tarsi of the 
males is dilated. Carabus coriaceus, [a reputed British species]. 
Carabus, Linn. (Tachypus, Web.), has the labrum simply notched or bilobed, and with the tooth of the mentum- 
notch entire ; the fore tarsi dilated in the males ; they are destitute of wings. 
Dejean describes one hundred and twenty-four species, divided into sixteen sec- 
tions. The majority of these species inhabit Europe, Caucasus, Siberia, Asia 
Minor, Syria, and the north of Africa. Some have been brought from the two 
extremities of America ; and it is probable that the intermediate countries possess 
others. Carabus auratus, Linn., Panz., is a common continental species, which 
has received the ordinary name of the Gardener, [being found in gardens, where 
it feeds upon Worms. There are nearly twenty British species, the nomenclature 
of several of which is very confused in its synonymes. One of the largest 
and best characterized species is C. clathratus, a rare Irish insect, here figured.] 
Colosoma, Weber {Callisthenes, Fischer), is generally winged ; the mandibles are 
without distinct teeth on the inner edge ; the thorax is transverse, equally dilated 
and rounded at the sides, without elongated posterior angles ; the abdomen is 
nearly square ; the four posterior tibiae are curved in the males of several. The 
species are fewer than in Carabus, but they extend from the north to the equator. 
Type, Carabus sycophanta, Linn., three-fourths of an inch long, of a velvet black 
with the elytra golden green, or brilliant copper, very finely striated, each having 
three lines of fine impressed dots. Its larva lives in the nests of the processionary 
Caterpillars, upon which it feeds, devouring many in the course of a day. Other larvae of its own species, smaller 
and younger, attack and devour it when its voracity has overcome its activity. They are black ; and are some- 
times found running on the ground, or upon trees, especially the oak. [An elaborate anatomical memoir upon 
this larva, by Dr. Hermann Burmeister, is published in the Transactions of the Entomological Society, in the last 
part of which Mr. Hope has also published the descriptions of some species brought home by Mr. Charles Darwin, 
the celebrated naturalist of the expedition of the Beagle.] 
A third and last division of the Grandipalpi is at once distinguished from the former by a series of 
characters. The majority are winged ; the basal joints of the fore tarsi of the males are always 
dilated ; the labrum is entire ; the outer palpi are very slightly dilated at the tips ; the inner edge of 
the mandibles is not armed with distinct teeth ; and the tooth of the mentum-notch is bifid. The fore 
tibiae of many species have a short notch at the inner side, w'here one of the spines is inserted higher 
than the other : so that these Carabiques, as well as those of the following section, might come imme- 
diately after the Patellimani. They generally frequent humid and aquatic places. Some of them, 
such as Omophron, seem to unite this tribe with the following, or the aquatic carnivorous species. 
