_Upper Side._ Antennæ white above, and brown beneath. Head, neck, and thorax olive brown, with an ash-coloured streak running on each side thereof. Abdomen, next the thorax, very dark, from whence a brown list runs along the upper part to the extremity; the sides being of a golden yellow. Anterior wings dark green next the shoulders, softening to a nut brown as it runs along the anterior edges; the tips cream-coloured, from whence run two faint lines to the middle of the posterior edges; and also a lightish bar running in the same direction. Along the external edges they are of a delicate, soft, nut brown colour, and near the middle of each is a small black spot, placed near the anterior edge. Posterior wings black next the body, but nut brown along the external edges (about half way); the abdominal corners and adjoining parts being cream colour, as are the cilia and anterior edges. _Under Side._ Breast, sides, and abdomen deep golden yellow; the middle of which and the legs are ash-coloured. Wings deep yellow. The anterior, next the body, greenish black, and cream-coloured next the tips. The posterior having several faint, dark, and undulated lines crossing them from the anterior to the abdominal edges. GLAUCOPIS COARCTATA [female]. Plate XXVII. fig. 2. ORDER: Lepidoptera. SECTION: Crepuscularia? FAMILY: Ægeriidæ, _Steph._ GENUS. GLAUCOPIS, _Fabricius_. (syst. Gloss.) Zygæna, _Fabr. Olim._ Sphinx P. _Drury_. GLAUCOPIS COARCTATA. Alis flavo-hyalinis, marginibus maculâque anticarum fuscis, abdomine basi coarctato, maculis aureo-coerulescentibus. (Expans. Alar. 1 unc. 9 lin.) SYN. Sphinx coarctata, _Drury, App. vol._ 2. _Cramer Ins. tab._ 4. _f._ F. G. Zygæna caudata, _Fabr. Ent. Syst._ III. 1. _p._ 403. _No._ 58. _Gmel. Linn. S. N._ 2398. 147. _Pallas Spicel. Zool._ 1. _tab._ 2. _fig._ 8. [male]. HABITAT: Bay of Honduras (_Drury_). "In America meridionali" (_Fabr._). _Upper Side._ Antennæ pectinated, and thickest in the middle. Head black, with a blue spot in front. Neck blue. Thorax black, with an orange spot on each shoulder. Abdomen black; smallest next the thorax, with a row of golden blue spots on each side, and another at top; at the extremity is placed a hairy bristle, about a quarter the length of the abdomen. Wings yellowish, and transparent. The anterior having a black narrow border running round all their edges, except the anterior ones; and in the middle of each is an oblong black spot, joining to the anterior edge, which reaches almost half across the wing. Posterior wings with a black border along the abdominal edges and the upper corners; the anterior and external edges having none.