Euglossa (Euglossa) aeneolusa, 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 : 325-326

publication ID	https://doi.org/10.35249/rche.51.3.25.04
publication LSID	lsid:zoobank.org:pub:DE23BE8C-FB49-46C5-908C-05655BE0D05
persistent identifier	https://treatment.plazi.org/id/241887F1-3D07-FFE0-D690-4912FC37FA86
treatment provided by	Felipe
scientific name	Euglossa (Euglossa) aeneolusa
status	sp. nov.

Treatment

Euglossa (Euglossa) aeneolusa sp. nov.

( Figs. 2 View Figure 2 A-D)

Type material. Holotype. Male , with the following data: “ Brasil, Amazonas, Barcelos, Serra Tapirapecó, 1°12’31”N 64°45’58”W, 800m, 14h, cineol, 07/0ut/2006, R. L. Dias ” ( INPA). Nine paratypes: 2 males from Brasil, idem, 0°46’48”S / 65°58’31”W, 1085m, 10h, eugenol, 16/ago/2005, R. L. Dias, 1 male, idem, 1330m, 9h, cineol 27/ago/2005, idem, 2 males, idem, 1085m, 9h, 12h, 28/ago/2005, idem, 1 male, idem, 11h, idem, 2 males, idem, 15h, salicilato, idem, 1 male, idem, 13h, cineol, 29/ago/2005, idem ( INPA). GoogleMaps

Diagnosis. Male. Clypeal disc blue, ivory paraocular stripes complete, reaching the malar area and slightly thicker below, forward side of antennal scape black, TII-VII and external face of hindtibiae with a large and copper spot. Description. Measurements: Total length 11 mm, length of labiomaxillary complex almost two times eye length. Morphology: Labrum subquadrate, almost as wide as long, with median keel, clypeal disc tricarinate ( Fig. 2a View Figure 2 ), mandible bidentate, length of labiomaxillary complex near two times eye length ( Fig. 2c View Figure 2 ), scutellum short and slightly straight behind, corresponding less the half its width, without median depression, slightly flat above ( Fig. 2b View Figure 2 ), anterior midtibial tuft bilobed, the upper lobe very large, the lower lobe much smaller, posterior tuft elliptic ( Fig. 2d View Figure 2 ), hindtibiae subtriangular ( Fig. 2c View Figure 2 ). Color: Clypeal disc blue, ivory paraocular stripes complete reaching the malar area and a little expanded below, forward side of antennal scape black ( Fig. 2a View Figure 2 ), external face of hindtibiae and terga II-VII copper, rest of body metallic green ( Fig. 2b View Figure 2 ). Pilosity: Face, pronotal lobes, meso- and metepisternum, and legs black mixed with white, gena, hindtibial fringe and last terga white, vertex, mesoscutum, and scutellum black. Punctation: Clypeal disc dense, irregular, and small to large, lower paraocular areas sparse, large, and beveled, supraclypeal area very dense, irregular, and large, near ocelli very dense, small, and coalescent ( Fig. 2a View Figure 2 ), tegulae and mesoscutum very dense and small, scutellum less dense, and small to large, mesepisternum very dense to sparse, medium to large and beveled, external face of hindtibiae dense to sparse, small to large, and beveled, TI sparse and large to dense and small, II-V very dense and small, VI dense and medium, VII little dense, beveled, medium, and irregular.

Female. Unknown.

Geographic records. BRAZIL: Amazonas state.

Etymology. A reference to the bronze coloration of metassoma and hindtibiae.

Baits. Methyl salicylate, cineole, and eugenol.

Comments. It belongs to the Euglossa (Euglossa) purpurea species-group, for sharing with it the following features as defined by Dressler (1978): “midtibial tuft with two distinct lobes, these often unequal, the lower usually with longer and paler hairs, often appearing as an appendage attached to the upper lobe, but in a few species the lower is indistinct and the complete tuft rather triangular, hind tibia rhomboid, often quite large and convex, paraocular white markings usually present, scutellum usually convex above”. In general, Euglossa (Euglossa) aeneolusa sp. nov. is similar to Eg. avicula Dressler, 1982 by the anterior midtibial tuft bilobed with the proximal lobe very large and the distal lobe much smaller. But Eg. avicula has anterior midtibial tufts that remind a duck silhouette, according to Dressler (1982b). In Eg. aeneolusa TII-VII are copper while in Eg. avicula they are metallic green. Similar also to Eg. heterosticta Moure, 1968 but this one has the anterior midtibial tuft more pronounced and integument metallic green in terga and hindtibiae.