GENUS. LIBELLULA, _Auct._ LIBELLULA MARCIA. Coerulea aut ænea nitida, alis albido-flavis, anticis maculis duabus apiceque fuscis, posticis strigis duabus basalibus, fasciâ undatâ anali, maculis tribus apiceque fuscis, basi flavis. (Expans. Alar. 2 unc. 9 lin.) SYN. Libellula Marcia, _Drury_, _App. vol._ 2. Libellula Murcia, _Fabr. Ent. Syst._ 2. 376. 11. HABITAT: The Island of Johanna, near Madagascar. Head black. Eyes contiguous. Thorax and abdomen dark blue, but now much faded. Wings transparent and of a yellowish hue, with a small dusky cloud on each tip. The anterior having two small brown spots (almost black) on each; one at the middle of the anterior edge, the other near the body. Posterior wings broad and deep; the anterior edges next the body being finely ornamented with dark brown spots and clouds, that extend along that part for about half an inch: two small dusky spots are placed near the centre of each; and at the abdominal corners is a long waved spot of a fine dark brown, extending along the posterior edges; the space between it and the anterior edges being of a deeper yellow than the other parts of the wings. LIBELLULA DOMITIA. Plate XLV. fig. 4. ORDER: Neuroptera. SECTION: Subulicornes. FAMILY: Libellulidæ, _Leach_. GENUS. LIBELLULA, _Auct._ LIBELLULA DOMITIA. Luteo-rufescens, abdomine maculis dorsalibus flavis, alis fulvis stigmate nigricanti. (Expans. Alar. 1 unc. 9 lin.) SYN. Libellula Domitia, _Drury_, _App. vol._ 2. HABITAT: Jamaica. {94}Front of the head yellow. Eyes contiguous. Thorax and abdomen pale reddish brown; the former striped obliquely with green on its sides, the latter spotted with yellow on the top. Legs dusky yellowish green. Wings brownish yellow, with a small dark streak (almost black) placed on the anterior edges of each, near the tips. AGRION TITIA. Plate XLV. fig. 5. ORDER: Neuroptera. SECTION: Subulicornes. FAMILY: Libellulidæ, _Leach_. SUBFAMILY: Agrionides. GENUS. AGRION, _Fabr._ Calepteryx, _Leach._ Libellula p. _Drury_. AGRION TITIA. Atra; dimidio basali alarum anticarum fusco, plagâ magnâ internâ sanguineâ, apice fusco; posticis fuscis maculâ hyalinâ subapicali. (Expans. Alar. 2 unc. 6 lin.) SYN. Libellula Titia, _Drury_, _App. vol._ 2. HABITAT: Bay of Honduras. Head, thorax, and abdomen black. Eyes distant. Legs black. Anterior wings next the body red; which is surrounded, except on the posterior edges, with dark brown, occupying half the wings; the other half is transparent, with a dusky spot at the tips. When the insect is placed on a dark ground, the transparent parts of the wings appear to be surrounded with a small narrow edging of a grey colour. Posterior wings dark brown, with a transparent spot on each, situated about an eighth of an inch from the tips. PLATE XLVI. [Illustration] LIBELLULA VARIEGATA. Plate XLVI. fig. 1.