A review of Augochlora (Oxystoglossella) bees from South America: unexpected Amazonian diversity and assessment of vulnerable species Author Lepeco, Anderson Author Gonçalves, Rodrigo Barbosa text Journal of Natural History 2023 Oxford, England 2023-06-12 57 9 - 12 608 664 http://dx.doi.org/10.1080/00222933.2023.2195564 journal article 53802 10.1080/00222933.2023.2195564 0f7f9d5d-4eaf-4464-83d9-d30749f03fc5 1464-5262 8067039 Augochlora ( Oxystoglossella ) obidensis sp. nov. urn:lsid:zoobank.org:act: AA1B7C39-14FA-4C2B-9A29-7BD8350D958F ( Figures 9A–F , 14A ) Diagnosis Females of this species have the basal elevation of labrum orbicular and both sexes the portion of mesepisternum anterior to mesepisternal groove mostly covered with coarse rugae and gena and post-gena striate ( A. morrae subgroup). Augochlora obidensis sp. nov. has the mesoscutum disc with punctures of two size classes and it can be separated from similar species by the ornamentation on mesepisterum: at mid-height, with coarse and well-defined punctures posteriorly to mesepisternal groove; contiguously punctate below mesopleural pit, becoming sparser ventrally; mesepisternum loosely to strongly imbricate among punctures. Description Female. Measurements . Distance between eye notches: 1.8; head length: 2; clypeus width: 0.6; clypeus length: 0.5; clypeoantennal distance: 0.3; clypeus ocellar distance: 1.1; intertegular distance: 1.5; T1 width: 2; T2 width: 2.2; body length: 8.5. Head . Labrum basal surface light brown; basal elevation well defined, orbicular. Mandible mostly light brown, base and apex dark brown; distance between base and apical tooth about 3× mandibular basal width. Clypeus disc mostly copper, apical dark band as long as 1.5 OD; with shallow punctures, contiguously punctate; lateral teeth prominent. Supraclypeal area copper; upper portion densely punctate, becoming sparser (I <0.5 PD) near epistomal suture. Lower paraocular area mostly golden with copper reflection; with crowded punctures near antennal socket; sparse setae with about 1.5 OD, shorter decumbent setae in between. Frons green with golden reflection; crowded punctures medially. Preoccipital carina as thick as 0.5 OD laterally. Gena green with golden reflection. Post-gena striate, becoming microreticulate near hypostomal carina; with sparse setae <2 OD. Hypostomal carina very low, <0.3 OD, anteriorly with a slight rounded prominence. Mesosoma . Dorsolateral angle of pronotum obtuse in dorsal view. Fore leg coxa green, trochanter and femur black, tibia and tarsus light brown. Mesoscutum disc entirely copper, edges green with golden reflections; anterior portion rugulose, becoming contiguously punctate posteriorly, with sparse larger punctures among tiny ones. Scutellum golden with copper reflection; entirely densely punctate, I <0.5 PD. Mesepisternum green with golden reflection; rugose anterior to mesepisternal groove, the remainder of lateral surface with I <0.5 PD, imbricate among punctures, with well-defined punctures at mid height right after mesepisternal groove. Mid leg coxa to femur dark brown, tibia and tarsus light brown. Metanotum green with golden reflection. Metepisternum green with golden reflection; contiguously punctate. Hind leg coxa and trochanter green, femur dark brown, tibia and tarsus light brown. Metapostnotum almost as long as scutellum; entirely carinate-rugose. Propodeum green with golden reflection; contiguously punctate near metepisternum; posterior surface less than 1.5× higher than wide between lateral carinae. Metasoma . T1 mostly green with golden and copper-red reflections, apical dark band with 0.5 OD; entirely punctate, I <2 PD; anterior surface with dense tomentose setae among long setae. T2–4 mostly golden with copper reflections; with weak and dense punctation. T5 dark brown. S1 without median elevation. S1–6 dark brown, becoming lighter apically; S4 and S5 with long setae (> 3 OD) on posterior half. Figure 9. Augochlora obidensis sp. nov. : (A–C) holotype female; (D–F) paratype male. (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. Description Male. Measurements . Distance between eye notches: 1.4; head length: 1.7; clypeus width: 0.4; clypeus length: 0.4; clypeoantennal distance: 0.3; clypeus ocellar distance: 1; intertegular distance: 1.1; T1 width: 1.5; T2 width: 1.6; body length: 8. Head . Labrum basal surface yellowish. Mandible yellow, apex brownish. Clypeus disc mostly golden with copper reflection, apex yellowish; about as long as wide; with shallow punctures (I <0.5 PD). Supraclypeal area copper; densely punctate, I <0.5 PD. Lower paraocular area golden with copper reflection; contiguously punctate near antennal socket; sparse setae with about 1.5 OD, shorter decumbent setae in between. Frons green with golden reflection; 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 contiguously punctate, with weak striations, becoming microreticulate near hypostomal carina; with relatively dense setae <3 OD. Hypostomal carina very low, <0.3 OD. Mesosoma . Dorsolateral angle of pronotum obtuse in dorsal view. Fore leg coxa green, trochanter black, femur light brown with strong green reflection, tibia light brown, tarsus yellow. Mesoscutum green with golden and copper reflection; anterior portion contiguously punctate to rugulose, becoming sparser (I <0.5 PD) posterior to median line, disc loosely imbricate among punctures. Scutellum green with golden and copper reflection; sublateral surfaces with I <PD, smooth among punctures. Mesepisternum green with golden reflection; rugose anterior to mesepisternal groove, the remainder of lateral surface with I <0.5 PD, imbricate among punctures, with crowded punctures at mid height right after mesepisternal groove. Mid leg coxa and trochanter black, femur and tibia light brown, tarsus yellow. Metanotum green with copper reflection. Metepisternum green with copper reflection; contiguously punctate. Hind leg coxa and trochanter green, femur and tibia light brown, tarsus yellowish, basitarsus about 6.5× longer than wide, not narrowed apically. Metapostnotum green with golden reflection; as long as scutellum; entirely carinate-rugose. 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 green with golden and copper reflection, apical dark band with 0.5 OD; densely punctate on disc, I <PD, sparser on lateral surfaces; apex not inflexed. T2–6 mostly green with golden and copper-red reflections; with weak and dense punctation. T7 light brown. S1 dark brown with green reflection. 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. Distribution Brazil ( Amapá , Amazonas, Pará ). Type material Holotype female ′ DZUP 568026 ̍ ′ Colonia Rio Branco \OBIDOS Pará \ BRASIL IX-1953 \ F. M. Oliveira ̍. Paratypes , 38 males and 77 females with the same data (listed on supplemental material). Examined material Supplemental material. Etymology The name is for the geographic place the type series was collected, in the municipality of Obidos , Pará . We opted to use the noun ′obidensis̍ instead of ′obidosensis̍ in reference to the Portuguese gentilic adjective obidense, from Óbidos.