Head dusky yellowish olive. Eyes prominent. Antennæ black, and of equal thickness throughout; consisting of twenty-seven articulations, being a little longer than the thorax, which is of a dusky olive, and ending upwards in a sharp ridge, which is dentated and uneven. Tegmina dusky green, with a great many faint dark spots on them. Wings red, and edged with black; having a great number of dark spots on them of different shapes and sizes, many of which appear like beards of arrows. Abdomen large and green. Thighs reddish brown, chequered with white. Legs the same, the spines being black. PLATE XLV. [Illustration] LIBELLULA LUCIA. Plate XLV. fig. 1. ORDER: Neuroptera. SECTION: Subulicornes. FAMILY: Libellulidæ, _Leach_. GENUS. LIBELLULA, _Auct._ LIBELLULA LUCIA. Thorace olivaceo lineis duabus lateralibus apiceque flavis, alis hyalino-subflavis, strigâ subcostali maculâque versus basin fasciâque triangulari mediâ fuscis, stigmate albo, nigro terminato. (Expans. Alar. 2 unc.) SYN. Libellula Lucia, _Drury_, _App. vol._ 2. Libellula variegata, _Fabr. Ent. Syst._ 2. 382. 40. (nec _Linn. Syst. Nat._ 904. 18. ex Indiis.) _Pal. Beauv. Ins. d'Afr. et d'Amer. Neur. pl._ 2. _fig._ 4. HABITAT: Sierra Leone. Front of the head green. Eyes contiguous. Thorax dark green; being striped obliquely on the sides with two yellow streaks, and another on the top. Abdomen yellowish green, with two dark stripes running longitudinally on the sides. Legs dark green. Wings transparent, with a slender white streak near the tips of each, and a small black spot joining thereto, which are placed on the anterior edges; from the small edges, near the middle of each wing, a small dark cloud arises that crosses the wings, those of the superior running lowest. Near the body another small cloud is placed, being largest and strongest in the superior wings; the fore part of which is embellished with two slender black streaks running parallel, and near to the anterior edges. {93}AGRION CAIA. Plate XLV. fig. 2. ORDER: Neuroptera. SECTION: Subulicornes. FAMILY: Libellulidæ, _Leach_. SUBFAMILY: Agrionides. GENUS. AGRION, _Fabr._ Calepteryx, _Leach_. Libellula p. _Drury_. AGRION CAIA. Cuprea, abdomine nigro, alis hyalinis basi sanguineis, posticis etiam maculâ parvâ apicali sanguineâ. (Expans. Alar. 2 unc. 3 lin.) SYN. Libellula Caia, _Drury_, _App. vol._ 2. HABITAT: South America. Front of the head blueish black. Eyes distant. Thorax copper gold-coloured. Abdomen black and slender. Legs black. Wings transparent, but next the body are of a fine lively red; the posterior having a small spot of that colour placed at their tips. This insect is nearly allied to Agrion Brightwelli, Kirby (Linn. Trans. vol. 14. t. 3. fig. 5.) which is also an inhabitant of Brazil. LIBELLULA MARCIA. Plate XLV. fig. 3. ORDER: Neuroptera. SECTION: Subulicornes. FAMILY: Libellulidæ, _Leach_.