Melipona fasciata barticensis Cockerell.—One specimen has five linear red bands on abdomen, but in another the bands are very indistinct, almost obsolete.
Melipona intermixta Cockerell.—The ground color of the first three abdominal tergites varies; in the lighter forms that of the first is pale fulvous with the shoulders blackish, of the second and third clear ferruginous.
Euglossa singularis Mocsáry.—Judging from the brief description, it appears that E. meliponoides Ducke is probably the same species.
Euglossa decorata Smith, var. ruficauda, new variety
Both sexes with abdomen ferruginous, apically more or less dusky, but the whole effect lighter and redder than typical; scutellum green with the hind margin red. Tuft on female scutellum light fulvous. The female, from Kalacoon, (Hym. 212) is the type of the variety.
Euglossa ignita Smith, var. chlorosoma, new variety
Green, without coppery tints, but variably suffused with purple. It is smaller than E. piliventris, with shorter mouth-parts, and the labrum pallid with a pair of dusky spots. A male in the U. S. Nat. Museum from Bartica, which I reported as E. piliventris, belongs here. Female E. piliventris has long yellow hairs on the anterior margin of hind basitarsus, but in chlorosoma the hair in this situation is black. The type of the variety is a female labelled Hym. 140. A female from Kalacoon has brassy and coppery tints on the apical part of abdomen, and must be referred to E. ignita proper. The type locality of ignita is Jamaica.
Ceratina læta Spinola. This was described from the female. The specimen sent is a male, and differs from the female in being smaller, and having a transverse band on anterior margin of clypeus, triangular marks on lower corners of face, and a large patch (emarginate above) on labrum all ivory-white. This is very like C. viridula Smith, which Ducke considers a synonym of læta, but the base of the metathorax seems to differ, and the nervures are piceous. For the present, therefore, I retain C. viridula as a distinct species. The female of C. viridula, collected by Busck in the Panama Canal Zone, is also distinguishable from that sex of C. læta.
Epicharis maculata var. barticana, new variety