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 ) matucanensis Cockerell, 1914 ( Figures 6A–D , 14C ) https://mczbase.mcz.harvard.edu/guid/MCZ:Ent:16423 Augochlora matucanensis Cockerell, 1914 . Lectotype female (MCZ Ent:16423) from Peru , Lima , Matucana Valley . The lectotype is presently designated to stabilise the taxonomy of the species. Examined through photographs. Diagnosis Augochlora matucanensis is easily diagnosed among other Oxystoglossella by the metapostnotum longer than scutellum, smooth medially and with strong radiating carinae continuing onto propodeum on lateral surfaces; the dorsolateral angle of pronotum with an additional angle laterally; and the surface of mesepisternum anterior to mesepisternal groove covered with rugae. Females also have the basal elevation of the labrum not well defined; and the gena and post-gena striate. Males are unique in having the longest setae on lower paraocular area relatively long, with about 2.5 OD; the basal surface of labrum black; the mandible mostly dark brown; and the flagellum crenullate. Comments Besides being more robust, the macrocephalic females have a tooth on post gena and weakly developed subapical tooth when compared to a non-macrocephalic specimen . This is the single A . ( Oxystoglossella ) species recorded from the western slope of Peru , collected in the foothills near Lima by Charles T . Brues , at an altitude of about 2225 m according to the original label . The species is redescribed using material deposited at DZUP . Redescription Female. Measurements .Distance between eye notches:1.6–2;head length:2.2–2.5;clypeus width: 0.6–0.7; clypeus length: 0.4–0.6; clypeoantennal distance: 0.3–0.5; clypeus ocellar distance: 1.2–1.5; intertegular distance: 1.2–1.6; T1 width: 1.7–2.1 T2 width: 2–2.5; body length: 7.5–10.5. Head . Labrum basal surface dark brown; basal elevation not well defined. Mandible mostly dark brown, medially brown; distance between base and apical tooth about 4× mandibular basal width. Clypeus disc mostly green with golden reflection, apical dark band as long as 1.5 OD; with shallow punctures (I <0.5 PD); lateral teeth prominent. Supraclypeal area green with golden reflection; upper portion contiguously punctate, becoming sparser (I <PD) near epistomal suture. Lower paraocular area green; densely punctate (I <0.5 PD) near antennal socket; sparse setae with about 3 OD, shorter decumbent setae in between. Frons green; contiguously punctate medially. Preoccipital carina as thick as 0.3 OD laterally. Gena green with golden reflection. Post-gena striate, becoming smooth near hypostomal carina; with sparse setae <3 OD. Hypostomal carina very low, <0.3 OD, not prominent anteriorly. Mesosoma . Dorsolateral angle of pronotum acute in dorsal view, with an additional angle laterally. Fore leg brown, coxa and femur with faint green reflections. Mesoscutum green; anterior portion contiguously punctate, becoming sparser (I = 0.5 PD) on disc, smooth among punctures. Scutellum green; sublateral surfaces with tiny punctures, I <2 PD, smooth among punctures.Mesepisternum green;rugulose anterior to mesepisternal groove, the remainder of lateral surface with I <0.5 PD, smooth among punctures, rugose at mid height right after mesepisternal groove. Mid leg brown. Metanotum green. Metepisternum green with golden reflection;with I <PD.Hind leg brown,coxa with faint green reflection.Metapostnotum longer than scutellum; basally with radiating carinae, becoming smooth posteriorly. Propodeum green with golden reflection; contiguously punctate near metepisternum; posterior surface about 1.5× as high as width between lateral carinae. Metasoma . T1 mostly green with golden reflection, apical dark band with 0.5 OD; entirely punctate, I <1.5 PD; anterior surface with dense tomentose setae among long setae. T2–4 mostly green with golden reflections; punctate, I <1.5 PD. T5 brown. S1 without median elevation. S1–6 light brown with faint green reflections; S4 and S5 with long setae (> 3 OD) on posterior half. Figure 6. Augochlora matucanensis Cockerell, 1914 : (A) female, frontal view of head; (B) female, dorsal view of mesosoma and metasoma; (C) male, lateral view of head; (D) male, dorsal view of mesosoma and metasoma. Scale bar: 1.0 mm, all at same scale. Description Male. Measurements . Distance between eye notches: 1.6; head length: 2.4; clypeus width: 0.7; clypeus length: 0.6; clypeoantennal distance: 0.4; clypeus ocellar distance: 1.2; intertegular distance: 1.5; T1 width: 1.6; T2 width: 2; body length: 8.5. Head . Labrum basal surface black. Mandible dark brown, lighter on apex.Clypeus disc green; about as long as wide; with shallow punctures (I <0.5 PD). Supraclypeal area green; densely punctate,I <0.5 PD. Lower paraocular area green; contiguously punctate near antennal socket; sparse setae with about 2.5 OD, shorter decumbent setae in between. Frons green with blue reflection; frontal line becoming faintly indicated near eye notch level. Flagellum crenullate; F1 as long as one-third of the length of F2. Preoccipital carina as thick as 0.3 OD laterally. Gena green. Post-gena mostly punctate, with weak striations, becoming smooth near hypostomal carina; with sparse setae <3 OD. Hypostomal carina very low, <0.3 OD. Mesosoma . Dorsolateral angle of pronotum obtuse in dorsal view,with an additional angle laterally.Fore leg coxa green,trochanter to tibia brown, with strong green reflection on femur, tarsus yellow. Mesoscutum green; anterior portion contiguously punctate, becoming sparser (I <PD) posterior to median line, disc smooth among punctures. Scutellum green with golden reflection; sublateral surfaces with I <2 PD, smooth among punctures. Mesepisternum green with golden reflection; rugulose anterior to mesepisternal groove, the remainder of lateral surface with I <0.5 PD, smooth among punctures, with shallow punctures at mid height right after mesepisternal groove. Mid leg coxa to tibia brown with weak green reflection, tarsus yellow. Metanotum green with golden reflection. Metepisternum green with golden reflection; densely punctate, I <0.5 PD. Hind leg coxa green, trochanter to tibia brown, with weak green reflections, tarsus yellowish, basitarsus about 6.5× longer than wide, not narrowed apically. Metapostnotum green; longer than scutellum; mostly with radiating carinae, becoming smooth posteriorly. Propodeum green; lateral surfaces imbricate among punctures; posterior surface less than 1.5× higher than wide between lateral carinae. Metasoma . T1 mostly green with golden reflection, apical dark band with 0.2 OD; densely punctate, I <PD; apex not inflexed. T2–6 mostly green with golden reflections; with dense punctation. T7 light brown. S1 brown. S2–6 dark brown with weak green reflections, becoming lighter apically. S4 without distinct tuft of thick setae on medioapical margin. S5 median surface not depressed; without glabrous patch medially.