Euglossa (Euglossa) pumilia, de Oliveira, 2025

de Oliveira, Marcio Luiz, 2025, A dozen of new species of orchid bees (Hymenoptera: Euglossini) from Brazil and Ecuador, Revista Chilena de Entomología 51 (3), pp. 321-342 : 335-336

Euglossa (Euglossa) pumilia sp. nov.

( Figs. 5 A-D)

Type material. Holotype. Male , with the following data: “ Brasil, PA [Pará], Vitória do Xingu, UHE-Belo Monte, Módulo 5, E:400597/N:9615026, 28-03. ii-iii. 2016 [sic], Nascimento, I.M.” ( INPA).

Diagnosis. Male. Very small bee with ivory paraocular stripes narrow and incomplete below, forward side of scape black, anterior midtibial tuft elliptic, the posterior smaller and elliptic, mesepisternum punctation sparse, large, and deep.

Description. Measurements: Total length 8 mm, length of labiomaxillary complex almost 2,5 times eye length. Morphology: Labrum subquadrate, almost as wide as long, with median keel, mandible bidentate, clypeal disc tricarinate ( Fig. 5a ), scutellum short and straight behind, corresponding less the half its width, without median depression, slightly flat above ( Fig. 5b ), length of labiomaxillary complex reaching SIII ( Fig. 5c ), midtibiae with anterior tuft small and elliptic, the posterior smaller and elliptic ( Fig. 5d ), hindtibiae subtriangular and inflated ( Fig. 5c ), SII with small, widely separated tufts. Color: Clypeal disc blue, ivory paraocular stripes narrow and incomplete below, forward side of the antennal scape black ( Fig. 5a ), head, torax, legs, and metassoma metallic green ( Figs. 5b, c ). Pilosity: Face, gena, mesepisternum legs, and sterna white, vertex, pronotal lobes, scutum, and scutellum black. Punctation: Clypeal disc dense, medium to large, and irregular, lower paraocular areas less dense, large, and deep, supraclypeal area very dense, small to large and irregular, near ocelli strongly dense and small punctures ( Fig. 5a ), tegulae less dense and with small punctures, mesoscutum and scutellum less dense and small, mesepisternum less dense with large and deep punctures, external face of hindtibiae less dense to sparse, with small to beveled punctures posteriorly, TI-IV very dense and with micropunctures, V-VI dense, medium and irregular, beveled, VII sparse, medium and superficial.

Female. Unknown.

Geographic records. BRAZIL: Pará.

Etymology. A reference to the small size of this species.

Bait. Unknown.

Comments. This is the last species described here that belongs to the Euglossa (Euglossa) purpurea species-group for sharing with it the features defined above by Dressler (1978). By its small size resembles the small representants of the Eg. (Glossurela) bursigera species-group as Eg. crassipunctata Dressler, 1982 , Eg. parvula Dressler, 1982 , and Eg. sapphirina Moure, 1968 . But it belongs to the subgenus Euglossa , being morphologically similar to Eg. amazonica Dressler, 1982 due to the clypeal disc blue, but different from it by anterior midtibial tuft that is smaller, ivory paraocular stripes narrow and incomplete below, and forward side of the antennal scape black.

Figures

Figure 5. Holotype of Euglossa (Euglossa) pumilia sp. nov. A. Head, frontal view. B. Dorsal habitus. C. Lateral habitus. D. Mesotibia. Holotype of Euglossa (Glossurella) rotundata sp. nov. E. Head, frontal view. F. Dorsal habitus. G. Lateral habitus. H. Mesotibia. / Figura 5. Holotipo de Euglossa (Euglossa) pumilia sp. nov. A. Cabeza, vista frontal. B. Hábito dorsal. C. Hábito lateral. D. Mesotibia. Holotipo de Euglossa (Glossurella) rotundata sp. nov. E. Cabeza, vista frontal. F. Hábito dorsal. G. Hábito lateral. H. Mesotibia.