Euglossa (Glossurella) adiastola, Hinojosa-Diaz, Ismael A., Nemesio, Andre & Engel, Michael S., 2012

Hinojosa-Diaz, Ismael A., Nemesio, Andre & Engel, Michael S., 2012, Two new species of Euglossa from South America, with notes on their taxonomic affinities (Hymenoptera, Apidae), ZooKeys 221, pp. 63-79 : 73-76

Euglossa (Glossurella) adiastola sp. n. Figs 2128

Holotype.

♂, labeled: " Euglossina da; Hiléia Baiana; REBIO C. Veado; 18289 - 52751 // Pinheiros ES; BRASIL 09/02/2010; A. Nemésio”. The holotype is deposited in UFMG.

Paratypes.

15♂♂: labeled as follows: data as holotype (1♂) except date “07/02/2010” and lacking first label; data as holotype (4♂) except individual file numbers “18240-52566”, “18244-52581”, “18244-52583” and “18270-52685”; "Euglossina da; Hiléia Baiana; REBIO C. Grande; 18059 - 51976 // Conceição Barra ES; BRASIL 02/02/2010; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; Res. Nat. Vale; 17096 - 48063 // Linhares ES; BRASIL 10/12/2009; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; RPPN Duas Barras; 18680 - 53528 // Sta Maria do Salto MG; BRASIL 12/02/2009; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; PN Monte Pascoal; 16456 - 46333 // Porto Seguro BA; BRASIL 05/10/2009; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; PN Descobrimento; 16492 - 46415 // Prado BA; BRASIL 07/10/2009; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; Res. Ecol. Michelin; 16828 - 47244 // Igrapiúna BA; BRASIL 27/11/2009; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; P. E. S. Conduru; 17990 - 51710 // Uruçuca BA; BRASIL 30/01/2010; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; RPPN Serra Bonita; 17807 - 51142 // Camacan BA; BRASIL 24/01/2010; A. Nemésio” (1♂); "Euglossina da; Hiléia Baiana; Campus UESC; 18331 - 52871 // Ilhéus BA; BRASIL 20/02/2010; A. Nemésio” (1♂); “Ilhéus BA; BRASIL 27/07/2010; A. Nemésio” (1♂). Paratypes are deposited in UFMG, except the first and the last ones are deposited in SEMC.

Diagnosis.

Labiomaxillary complex in repose reaching tip of metasoma (estimation) (Figs 21-22); integument coloration light blue-green in the head, uniformly bot tle green on metasoma and mesosoma, moderate golden-bronzy iridescence all over (strong on metasomal sterna) (Figs 21-22), paraocular ivory marks narrow, not noticeably widened on lower sections, reaching epistomal sulcus (Fig. 23); mandible tridentate, middle tooth well developed; mesotibial microtrichia (velvety area) with anterior margin noticeably sparser, posterior margin obliquely truncate distally (concave margin in oblique section) (Fig. 24), anterior mesotibial tuft ellipsoidal, proximal margin concave, posterior mesotibial tuft elongated antero-posteriorly (Fig. 25); metatibial shape scalene triangular, organ slit with basal section tear-drop shaped, distal section very narrow separated from tibial ventral margin by more than its maximum width (Fig. 26); male second metasomal sternum with two notorious omega-like integumental depressions (Fig. 27); male terminalia features as described for Euglossa embera . See also Table 1.

Description.

♂: Structure (all measurements in millimeters and based on the holotype). Total body length 12.81; labiomaxillary complex in repose reaching tip of metasoma or even exceeding it by 1-2 mm in some specimens (Figs 21-22). Head length 2.78, width 4.50; upper interorbital distance 2.22; lower interorbital distance 2.15; upper clypeal width 1.19; lower clypeal width 1.96; clypeal protuberance 0.81; clypeal ridges as described for Euglossa embera ; labrum wider than long, length 0.96, width 1.15; medial labral ridge sharp; paramedial labral ridges blunt, oblique, running slightly beyond length of labral windows; labral windows ovoid, occupying proximal half of labrum; interocellar distance 0.44; ocellocular distance 0.59; first flagellomere slightly shorter (0.41) than second and third flagellomeres combined (0.44); length of malar area 0.19. Mandible tridentate, middle tooth well developed and differentiated from outer tooth. Pronotal dorso-lateral angle obliquely truncate, noticeably thicker than remainder of posterior pronotal marginal ridge (Fig. 28); intertegular distance 3.56; mesoscutal length 2.89; mesoscutellar length 1.26; mesoscutellum as described for Euglossa embera (Fig. 21); mesotibial length 2.15, mesotibial spur present; mesobasitarsal length 2.00, width 0.74 (as measured at proximal posterior keel), posterior keel projected in a obtuse angle; metatibial shape triangular (scalene triangular), anterior margin rather straight on outer view (Fig. 26), metatibial anterior margin length 2.96, ventral margin length 2.74, postero-dorsal margin length 4.37, maximum metatibial thickness 1.30; metatibial organ slit narrow (narrower than in Euglossa embera ), basal section teardrop shaped, anteriorly acute, length 0.59, distal section spur shaped, separated from ventral margin by more than its maximum width, maximum width occupying about one-fifth of metatibial outer surface width (Fig. 26), metatibial inner surface as in Euglossa embera , metabasitarsal length 2.30, mid-width 0.81; metabasitarsal ventral margin oblique (Fig. 26). Forewing length 9.48; jugal comb with 13-14 blades; hind wing with 17-18 hamuli. Maximum metasomal width 4.67; second metasomal sternum with two depressions as described for Euglossa embera (Fig. 27).

Coloration. Head as described for Euglossa embera , except as follows: golden-bronzy coloration not as strong, paraocular ivory marks reaching epistomal sulcus, ivory spot on antennal scape extended on frontal surface (covering most of it) (Fig. 23). Mesosoma uniformly bottle green with golden-bronzy hue (Figs 21-22); legs as described for Euglossa embera (Figs 22, 24-26); wings glossy hyaline with dark brown veins (Figs 21-22). Metasomal terga bottle green with golden-bronzy iridescence (accentuated on lateral areas) (Figs 21-22); sterna as in Euglossa embera .

Sculpturing. In general as described for Euglossa embera , except as follows: punctation along median mesoscutal line not as sparse, although sparser than elsewhere; metatibial outer surface with denser punctation, area along ventral margin with punctures separated by one to two puncture diameters (Fig. 26).

Vestiture. In general as described for Euglossa embera , except as follows: setae on meso- and metasoma, evenly fulvous, mesoscutum and mesoscutellum with a noticeable number of intermixed brown sturdy setae; anterior section of velvety area on mesotibia, sparser than in Euglossa embera , distal third of posterior margin of velvety area rather concave (Fig. 24).

Terminalia. As described for Euglossa embera .

♀: Unknown.

Etymology.

The specific epithet is based on the Greek word adiastolos, meaning “confused” or "not separated", as a reference to the confusion between this species and Euglossa augaspis .