Euglossa (Alloglossura) gorgonensis Cheesman

Hinojosa-Diaz, Ismael A. & Brosi, Berry J., 2013, First records and description of metallic red females of Euglossa (Alloglossura) gorgonensis Cheesman, with notes on color variation within the species (Hymenoptera, Apidae), ZooKeys 335, pp. 113-119 : 114-115

Euglossa (Alloglossura) gorgonensis Cheesman Figs 1-3

Euglossa gorgonensis Cheesman, 1929: 141-154 [146].

Euglossa (Glossura) gorgonensis erythrophana Dressler, 1978: 167-185 [170].

Female red morph description.

Structure. Total body length 10.45 mm (10.30, 10.59); labiomaxillary complex in repose slightly surpassing metasomal tip (estimation) (Figs 1-2). Head length 2.63 mm (2.56, 2.70); head width 4.23 mm (4.16, 4.30); upper interorbital distance 2.15 mm; lower interorbital distance 2.04 mm (2.01, 2.07); upper clypeal width 1.23 mm (1.19, 1.26); lower clypeal width 1.84 mm (1.83, 1.85); clypeal protuberance 0.78 mm (0.74, 0.81); medial clypeal ridge well developed, paramedial clypeal ridges well developed along their lower two thirds; labrum slightly wider than long, length 0.98 mm (0.96, 1.00), width 1.11 mm (1.10, 1.11); medial labral ridge sharp; paramedial labral ridges sharp, oblique, running on about four fifths of labral length; labral windows occupying about half of labral length; interocellar distance 0.33 mm; ocellocular distance 0.66 mm; length of first flagellomere [0.39 mm (0.37, 0.41)] comparable to combined length of second and third flagellomeres [0.39 mm (0.37, 0.41)]; length of malar area 0.05 mm. Mandible tridentate. Pronotal lateral angle characteristic of Alloglossura (slightly obtuse not broadened anterolaterally and with no projections); intertegular distance 3.26 mm; mesoscutal length 2.69 mm (2.59, 2.78); mesoscutellar length 1.30 mm (1.26, 1.33); posterior margin of mesoscutellum strongly convex; mesotibial length 2.04 mm (2.00, 2.07); mesobasitarsal length 1.86 mm (1.78, 1.93), maximum width 0.50 mm (0.48, 0.52); metatibia triangular (scalene triangular), metatibial anterior margin sinuate, proximally concave, length 2.78 mm (2.67, 2.89); ventral margin length 1.78 mm (1.56, 2.00); metatibial posterodorsal margin length 3.12 mm (3.04, 3.19); metabasitarsus characteristic of Alloglossura females (trapezoidal with narrower and straight distal margin) (Fig. 2), length 1.56 mm (1.48, 1.63), maximum width 0.72 mm (0.70, 0.74). Forewing length 8.04 mm (7.78, 8.30); hind wing with 17-20 hamuli. Maximum metasomal width 4.26 mm (4.22, 4.30).

Coloration. Head green, with noticeable golden–bronzy iridescence all over but accentuated on frontal areas (clypeal disc, and antennal depressions); some blue lights on vertex and lower paraocular areas; clypeal disc with brown coloration as in previously known specimens (i.e. restricted to contiguous areas along upper half of medial ridge) (Fig. 3); mesosoma green, with golden–bronzy iridescence all over, turning reddish on posterior half of mesoscutum, as well as on all mesoscutellar surface; legs green, with golden–bronzy iridescence; metasoma with basal green coloration overtaken by strong golden–reddish iridescence, particularly dominant on dorsal surfaces of terga (Figs 1-2).

Sculpturing and vestiture . As described for the known predominantly green specimens (i.e. Hinojosa-Díaz and Engel 2012).

Material examined.

Both female specimens from Costa Rica, labeled as follows: “Specimen’ 04 # 2251; morphospp: 94 // Tucanes [vertical writing] Costa Rica, Coto Brus, near San Vito; 8°49'01.88"N, 82°59'31.02"W BG; elev. 1200m; Aug. 2004; aerial netting; B.Brosi, T.Shih, B. Graham IXT 8/25" (1♀) (Emory University); "Practice #94; morphospp: // Santa Clara [near San Vito de Coto Brus, Puntarenas, Costa Rica, 8°48'23.56"N, 82°58'35.02"W] 7/9; FISH Int // c.f. Euglossa; gorgonensis // Collected outside of sampling; regime; morphospp #: 94 [captured in the middle of a 3-Ha forest fragment using a Van Someren trap baited with rotten fish, on 9-July-2004]"(1♀) (SEMC).