FORMICA BIHAMATA. Nigra, thorace ferrugineo antice quadrispinoso, squamâ
altissimâ spinis duabus arcuatis. (Long. Corp. 6 lin.)
SYN. Formica bihamata, _Drury, App. vol._ 2. _Fabr. Ent. Syst._ 2. 361.
49. _Syst. Piez._ 411. 66. _Latreille Hist. Nat. Fourm._ 127. _Oliv. Enc.
Méth. Ins._ 6. 499.
HABITAT: Island of Johanna, near Madagascar.
Antennæ longer than the thorax, the first joint almost equal to the
remainder. Eyes small, and placed very backward. Head black and small,
armed with very strong and sharp jaws. Thorax brown, having on the fore
part two spines, one on each side bending outwardly; on the top are
likewise two more, bending towards the abdomen. The peduncular scale is
very large and erect, standing very high, and branching at top into two
hooks, which bend in opposite directions. Abdomen round, and larger than
the head; the fore part being brown, the hinder black. Legs black, the
hinder ones being longest.