. Cuvier's animal kingdom : arranged according to its organization. Animals. 2. Polyergtis, Latr., which is also destitute of a sting, but with the antennae inserted near the mouth, and the man- dibles narrow, curved, or very much hooked. P. rufescem, the Amazon Ant above described, not yet discovered in this country. 3. Ponera, Latr., the neuters and females armed with a sting. Peduncle of abdomen formed of a single knot ; antenna; in these individuals thickened at the tip ; mandi- bles triangular ; head subtriangular. P. contracta, Latr., a very small species, [first discovered in England by
. Cuvier's animal kingdom : arranged according to its organization. Animals. 2. Polyergtis, Latr., which is also destitute of a sting, but with the antennae inserted near the mouth, and the man- dibles narrow, curved, or very much hooked. P. rufescem, the Amazon Ant above described, not yet discovered in this country. 3. Ponera, Latr., the neuters and females armed with a sting. Peduncle of abdomen formed of a single knot ; antenna; in these individuals thickened at the tip ; mandi- bles triangular ; head subtriangular. P. contracta, Latr., a very small species, [first discovered in England by me]. Odontomachus, Latr., has the peduncular node spined above ; the antenna; of the neuters filiform ; the head oblong, and deeply emarginate behind ; and the mandibles (v^y^- . V ^ long and narrow ; all the species are exotic. 0\ ^SJ 4. Mt/rmica, Latr., has also a sting, but the peduncle ^ "^ â , , ^ of the abdomen is composed of two knots ; the antennae FIfr. 119.âA, Formicafuscaand ilsjiws J B, Polyergus rufescens and , .. â â , . , j â. ^ ^ its jaws. exposed; the maxillary palpi long and 6-jointed; and the mandibles triangular. F. rubra [misprinted rit/a by Latreille], Linn., a very common British species. Eciton, Latr., differs from Myrmica only in having linear mandibles. Afta, Fabr., differs from Myrmica only in having very short palpi ; the head of the workers is generally very thick. A. cephalotes, Fab., the Visiting Ant \ J^ of the West Indies, above mentioned. Criiptocerus, Latr., furnished with a sting, with the peduncle of the abdomen formed of two knots ; the head very large and flat, vrith a groove on each side to receive the antennae. South American insects, [monographed by Klug]. [The excellent monograph of the ants by Latreille, and, as relates to their habits, the memoirs of Huber, ought to be consulted in this family.] The other Heterogyna are solitary in their habits, each species being only composed of winged males and apterous females, the lat
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