Head striped with dark and light brown. Eyes oblong. Thorax dark brown; having a light brown stripe running along it from the front of the head, which, when the wings are closed, is continued along the margin of the tegmina; on the sides it is light brown, and margined beneath with stripes and spots of dark buff. Antennæ thread-like, and about the length of the thorax. Tegmina dark buff-coloured, almost transparent, variegated with stripes and spots of different shapes; those next the shoulders being nearly black, and those toward the extremity more transparent. Wings very thin, and more transparent than the tegmina, being of a greenish hue. Abdomen light brown on the sides; having a small stripe of a paler colour running along it, and on the upper ridge is black. Legs pale brown. Hinder thighs almost square, the outer sides being white and prettily chequered, which, when viewed by a magnifier, seem like scales laid over one another; on the outside of the tibiæ is a round white spot, and over that a long black one. Posterior tibiæ brownish red, with two rows of spines on the hinder sides of a white colour, and tipped with black, consisting of nine in the outer and eleven in the inner row. The different habitats given of this insect by Drury, leads to believe that he had confounded several closely allied species under one name, Americanus; which I should have adopted, but for its inapplicability for the individuals of the Old World. It is also on the like account that I have given the reference to Linnæus with doubt, although Fabricius cites Drury's figure under Gryllus tartaricus without any hesitation. PLATE L. [Illustration] EMPUSA PENNICORNIS. Plate L. fig. 1. ORDER: Orthoptera. SECTION: Cursoria. FAMILY: Mantidæ. GENUS. EMPUSA, _Latr. Serv._ Gongylus, _Thunberg_. Mantis, _Fabr. Drury_. EMPUSA PENNICORNIS. Capite subulato, prothorace longissimo, femoribus anticis fusco trifasciatis, alis virescentibus. (Long. Corp. 2 unc. 1½ lin.) SYN. Mantis pectinata, _Drury, App. vol._ 2. Empusa pectinicornis, _Fabr. Ent._ 2. 25. _Oliv. Enc. Méth. No._ 32. _Serville Revis. Orthopt._ 21. (nec _Linn. Syst. Nat._ 1. 2. 691. _No._ 10.) HABITAT: Jamaica.