Augochlora (Oxystoglossella) rightmyerae Engel, 2000

Lepeco, Anderson & Gonçalves, Rodrigo Barbosa, 2023, A review of Augochlora (Oxystoglossella) bees from South America: unexpected Amazonian diversity and assessment of vulnerable species, Journal of Natural History (Oxford, England) 57 (9 - 12), pp. 608-664 : 647-648

Augochlora (Oxystoglossella) rightmyerae Engel, 2000

( Figures 11A–F , 13B )

Augochlora (Oxystoglossella) rightmyerae Engel, 2000 . Holotype female (AMNH) from Bolivia, La Paz, Alto Río Beni, ′south of Rio Inicua , 1100 m ̍. Examined through photographs.

Diagnosis

Females of this species have the basal elevation of the labrum orbicular and both sexes have the portion of mesepisternum anterior to mesepisternal groove mostly rugulose ( A. morrae subgroup). The species is similar to A. meloi sp. nov. in the apical dark band of clypeus more than 2 OD long, disc sometimes almost entirely darkened and clypeus and supraclypeal area with purple reflections. Augochlora rightmyerae can be differentiated from A. meloi sp. nov. by the blackish mesoscutum and scutellum, metapostnotum carinate and apex of setae on sublateral surfaces of T3 not surpassing the apex of sclerite. Males can be separated from other species of the subgroup by the mostly black mesoscutum and darkened scutellum and T1 dorsal surface.

Description

Male. Measurements. Distance between eye notches: 1.2; head length: 1.7; clypeus width: 0.6; clypeus length: 0.4; clypeoantennal distance: 0.3; clypeus ocellar distance: 1; intertegular distance: 1.1; T1 width: 1.3; T2 width: 1.5; body length: 7. Head. Labrum basal surface yellowish. Mandible yellow, apex brownish. Clypeus disc mostly green, apex yellowish; about as long as wide; with shallow punctures (I <PD). Supraclypeal area golden; densely punctate, I <PD. Lower paraocular area green; densely punctate near antennal socket; sparse setae with about 2 OD, shorter decumbent setae in between. Frons green; frontal line becoming faintly indicated near eye notch level. Flagellum not crenullate; F1 subequal to F 2 in length. Preoccipital carina as thick as OD laterally. Gena green with golden reflection. Post-gena mostly punctate, becoming microreticulate near hypostomal carina; with relatively dense setae <3 OD. Hypostomal carina low, <0.7 OD. Mesosoma. Dorsolateral angle of pronotum obtuse in dorsal view. Fore leg coxa to tibia brown,coxa with faint green reflection, tarsus light brown. Mesoscutum mostly black, with faint green reflection; sparsely punctate, becoming sparser (I <3 PD) posterior to median line, disc smooth among punctures. Scutellum green, somewhat darkened; sublateral surfaces with I <2 PD, smooth among punctures. Mesepisternum green; contiguously punctate anterior to mesepisternal groove, the remainder of lateral surface with I <PD, smooth among punctures, with shallow punctures at mid height right after mesepisternal groove. Mid leg coxa to tibia brown, tarsus light brown. Metanotum green with golden reflection. Metepisternum green; contiguously punctate. Hind leg coxa to tibia brown, tarsus light brown, basitarsus about 6.5× longer than wide, not narrowed apically. Metapostnotum green; as long as scutellum; entirely with radiating carinae. Propodeum green with golden reflection; lateral surfaces imbricate among punctures; posterior surface less than 1.5× higher than wide between lateral carinae. Metasoma. T1 mostly black, with green reflections on lateral surfaces; densely punctate on disc, I <PD, sparser on lateral surfaces; apex inflexed. T2–6 mostly black with faint green reflections; with weak and dense punctation. T7 dark brown. S1 dark brown. S2–6 dark brown, becoming lighter apically. S4 without distinct tuft of thick setae on medioapical margin. S5 median surface not depressed; without glabrous patch medially. Genitalia: not dissected.

Distribution

Bolivia (La Paz), Brazil (Acre), Peru (Cuzco, Madre de Dios).

Examined material

Supplemental material.

Figures

Figure 11. Augochlora rightmyerae Engel, 2000: (A) female, frontal view of head; (B) female, lateral view of mesosoma; (C) female, dorsal view of metasoma; (D) male, frontal view of head; (E) male, lateral view of mesosoma; (F) male, dorsal view of metasoma. Scale bar: 1.0 mm, all at same scale.

Figure 13. Map of distribution records for Oxystoglossella of the A. aurinasis and A. modica species groups: (A) A. almeidai, A. aurinasis and A. meloi sp. nov.; (B) A. eucnemis, A. lamellata sp. nov., A. mineira sp. nov. and A. rightmyerae; (C) A. mendax and A. modica; (D) A. simplex sp. nov. and A. tenax.