_Upper Side._ Antennæ black. Thorax black. Abdomen dark brown. Wings very dark blue, almost black, the edges being dark brown; the anterior ones are angulated, and the posterior ones furnished with two short tails. A row of blue crescents, forming a line, runs along the posterior wings near the external edges, extending along part of the anterior ones, which also have two small oval blue spots, almost joined together, placed at the middle of the anterior edges, and one single one near the tips. _Under Side._ Palpi not noticed. Legs brown above, and white beneath. Breast and abdomen dark brown. Wings soft brown, with some irregular and indented bands of a darker colour crossing them, particularly the posterior ones, which have a rather broad one running from the upper to the abdominal corners. These wings have also seven very small white spots placed along the external edges. THECLA PHALEROS [male]. Plate XXVI. fig. 3, 4. ORDER: Lepidoptera. SECTION: Diurna. FAMILY: Lycænidæ, _Steph._ GENUS. THECLA, _Fabr._ (Syst. Gloss.) Polyommatus, _Latr. God._ Hesperia p. _Fabr._ (olim.) Papilio (Pleb. rur.), _Drury_. THECLA PHALEROS. Alis [male] violaceo-coeruleis nitidis, [female] albidis apice fusco, subtus albis fasciis transversis margineque nigris ad angulum ani conjunctis. (Expans. Alar. 1 unc. 9 lin.) SYN. Papilio (Pleb. urb.) Phaleros, _Linn. Syst. Nat._ 2. _p._ 796. _No._ 272. _Enc. Méth._ ix. _p._ 628. (Polyomm. Ph.) Hesperia R. Chiton, _Fabr. Ent. Syst._ III. 1. _p._ 262. _Donovan Ins. India_, 1. _pl._ 3. _f._ 1. Papilio Silenus, _Cram._ _pl._ 282. E. Papilio Agis, _Drury_, _App. vol._ 3. HABITAT: Brazil (_Drury_, in text). "Rio Janeiro, Mr. Bonifas, 1775" (_Drury's_ MSS.). Surinam (_Enc. Méth._). India (_Linn. Fabr. Donov._). _Upper Side._ Antennæ black. Thorax and abdomen dark blue. Wings blue, without marks. Posterior furnished with four small black tails, the tips of which are white. The abdominal corners are also edged with white. _Under Side._ Palpi long, thin, and black, white at the base, as is the neck. Legs brown above and white beneath. Breast yellow. Abdomen blue. Wings yellow; the anterior having some brown, {36}irregular, and uneven lines crossing them from the anterior to the posterior edges. The external edges are also verged with brown, and at the lower corners have an orange-coloured patch. Posterior wings with three dark brown lines crossing them from the anterior edges to the abdominal corners, and externally edged with dark brown. PLATE XXVII. [Illustration] VANESSA PELARGA. Plate XXVII. fig. 1, 2. ORDER: Lepidoptera. SECTION: Diurna. FAMILY: Nymphalidæ, _Swains._ GENUS. VANESSA, _Fabr. Latr. God._ Hamadryades, _Hübn._ Papilio (Nymph. Phal.) _Drury_.