Augochlora (Oxystoglossella) tenax, Lepeco & Gonçalves, 2020

Lepeco, Anderson & Gonçalves, Rodrigo Barbosa, 2020, New species of Augochlora (Oxystoglossella) Eickwort (Hymenoptera; Apoidea) from Northeastern Brazil with an identification key for the region, Zootaxa 4802 (2), pp. 261-293 : 286-289

Augochlora (Oxystoglossella) tenax sp. nov.

( Figs. 16 A-D; 17A-C; 18E; 19B)

urn:lsid:zoobank.org:act:D50C1B83-FE2E-4933-909D-F87051AB6867

Diagnosis. This species can be recognized by the punctate preepisternum; the dark green integument, mainly on frons; by the presence of a tuberculate projection on S1 of the females; and by the apically narrowed hind leg basitarsus on males, as in A. modica sp.nov. From that species it differs by the rugulose metapostnotum posterior surface and by the imbricate integument among punctures on mesoscutum and scutellum of females.

Description. ♀. Measurements. Eye notch width: 1.14–1.62 (mean = 1.30, n = 10); head length: 1.52–2.12 (mean = 1.74, n = 10); clypeus width: 0.38–0.58 (mean = 0.46, n = 10); clypeus length: 0.40–0.58 (mean = 0.45, n = 10); clypeoantennal distance: 0.24–0.34 (mean = 0.28, n = 10); clypeus ocellar distance: 0.90–1.20 (mean = 1.01, n = 10); intertegular distance: 0.90–1.24 (mean = 1.03, n = 10); T1 width: 1.24–1.88 (mean = 1.49, n = 10); T2 width: 1.44–2.12 (mean = 1.69, n = 10); body length: 5.00–8.00 (mean = 6.20, n = 10).

Head. Labrum basal surface yellow; basal elevation slight, not orbicular. Mandible mostly light brown, apex and base brown; preapical tooth far from apex; Clypeus mostly green with golden reflection, apical dark brown band> OD; punctate, punctures weak, mostly smooth in between, imbricate on basal corners; long setae (3.0 OD) on apical margin, shorter on basal margin. Epistomal angle acute, protruding into clypeus. Supraclypeal area green with golden reflection; sparsely punctate, imbricate in between. Parocular area with golden reflection; densely punctate, i <PD, punctures weak; long setae (2.0–3.0 OD) intermixed with tomentose setae. Antennae mostly black, flagellum ventrally brown; longer setae (= OD) on scape base. Frons with dark green reflection; contiguously punctate; setae length 1.5–2.0 OD. Vertex weakly punctate behind ocelli. Preoccipital area weakly lamellate, lamella not expanded near post gena. Gena green; punctate, punctures weak. Postgena darkened; microreticulate, some scattered weak punctures; setae length <3.0 OD. Hypostomal carina lamellate, not projected anteriorly.

Mesosoma. Pronotum lateral angle widely rounded. dorsal surface green with golden reflection. Fore leg: coxa brown; trochanter and femur brown with weak green reflection; long plumose setae (<3.0 OD); tibia and tarsus light brown. Mesoscutum green with golden reflection; punctate, i = PD, sparser on disc after median line, imbricate in between, densely punctate on lateral surfaces; setae length <2.0 OD. Scutellum green with golden reflection; mostly densely punctate, i <PD, sparser areas sublaterally, imbricate in between; longer setae (4.0 OD) near apex. Mesepisternum green with golden reflection; preepisternum punctate; hypoepimeral area punctate, i = PD, imbricate in between; below scrobe punctate, i = PD, imbricate in between, ventrally conflected. Mid leg: coxa and trochanter dark brown; femur dark brown with weak green reflection; tibia and tarsus light brown. Tegula light brown with anterior green spot. Fore wing marginal cell apex truncate, appendiculate. Metanotum with tiny setae near base, scattered long setae (<3.0 OD). Metepisternum green with golden reflection. Hind leg: coxa dark brown, ventrally rounded; trochanter dark brown; long plumose setae (3.0 OD); femur to tibia tarsus brown. Metapostnotum green with golden reflection; as long as scutellum; plane, mostly rugose, carinate on lateral surfaces, posterior surface rugulose. Propodeum green with golden reflection; long plumose setae (3.0 OD) intermixed with tiny decumbent setae; posterior surface weakly punctate, microreticulate in between; lateral surfaces mostly weakly punctate, contiguously punctate anteriorly, imbricate in between.

Metasoma. T1 anterior surface sparsely punctate, microreticulate in between; dark brown with weak green reflection; setae up to 3.0 OD intermixed with tomentose setae. T1 dorsal surface mostly impunctate, imbricate, lateral surfaces weakly puncticulate; mostly dark brown with weak green reflection, dull, lateral surfaces green; tiny setae dorsally, long setae (2.0 OD) on lateral surfaces. T2 weakly puncticulate, imbricate in between; mostly brown with weak green reflection, dull, lateral surfaces green; marginal area brown; tiny decumbent setae near base and on lateral surfaces, long setae (2.0 OD) on lateral surfaces. T3 weakly puncticulate, imbricate in between; mostly brown with weak green reflection, dull, lateral surfaces green, apex brown; mostly with tiny decumbent setae reaching apical margin, long setae (2.0 OD) near margin and lateral on surfaces. T4 weakly punctate, imbricate in between; mostly brown with weak green reflection, dull, lateral surfaces green, apex brown; mostly with tiny decumbent setae, long setae (3.0 OD) scattered on disc and lateral surfaces. T5 black; prepygidial area covered with dense scale-like setae. S1 projection tuberculate; dark brown with weak green reflection; with long plumose setae (> 2.0 OD) medially, margin with tiny decumbent setae. S2 dark brown; with long plumose setae (> 3.0 OD). S3–4 as S2. S5 apical margin widely rounded; brown; long plumose setae (> 3.0 OD). S6 brown; long dark setae on apex.

Description. ♂. Measurements. Eye notch width: 1.02–1.24 (mean = 1.13, n = 2); head length: 1.44–1.68 (mean = 1.56, n = 2); clypeus width: 0.30–0.40 (mean = 0.35, n = 2); clypeus length: 0.34–0.42 (mean = 0.38, n = 2); clypeoantennal distance: 0.20–0.28 (mean = 0.24, n = 2); clypeus ocellar distance: 0.84–1.00 (mean = 0.92, n = 2); intertegular distance: 0.87–1.02 (mean = 0.95, n = 2); T1 width: 1.00–1.40 (mean = 1.20, n = 2); T2 width: 1.16–1.48 (mean = 1.32, n = 2); scape length: 0.40–0.44 (mean = 0.42, n = 2); body length: 5.00–6.00 (mean = 5.50, n = 2).

Head. Labrum basal surface pale, yellowish. Mandible mostly yellowish, apex brown. Clypeus mostly green, apex yellowish; punctate, i = PD, punctures large, smooth in between; setae length = 2.0 OD. Supraclypeal area green. Parocular area green; densely punctate, punctures small, smooth in between; long setae (2.0 OD) intermixed with dense tomentose setae. Antennae: scape dark brown; pedicel dark brown; F1 brown; remaining flagellomeres mostly dark brown, ventrally light brown. Frons dark green; contiguously to conflected punctate; setae length <OD. Vertex densely punctate behind ocelli, punctures weak. Preoccipital area weakly lamellate. Gena green; punctate, punctures weak. Postgena darkened near hypostoma; weakly microreticulate, some scattered weak punctures; setae length <3.0 OD.

Mesosoma. Pronotum dorsal surface green with golden reflection. Pronotal lobe punctate, loosely imbricate in between. Fore leg: coxa ventrally brown with weak green reflection; trochanter and femur brown with weak green reflection; not swollen; tibia and tarsus light brown. Mesoscutum green with golden reflection; sparsely punctate on disc, i> PD, sparser after median line; smooth in between, denser punctuation on lateral margins; setae length = 1.0–2.0 OD. Scutellum without longitudinal furrow; green with golden reflection; mostly densely punctate, i <PD, sparser areas sublaterally, imbricate in between; longer setae (3.0 OD) near apex. Mesepisternum dark green; preepisternum punctate, imbricate in between, ventrally conflected; hypoepimeral area punctate, i = PD, smooth in between; below scrobe punctate, i = PD, smooth in between. Mid leg: coxa brown; trochanter brown with weak green reflection; setae length <OD; femur brown with weak green reflection; slightly swollen; tibia and tarsus light brown. Tegula brown; Metanotum contiguously punctate, punctures small, laterally and posteriorly rugulose; tiny setae near base, scattered long setae (2.0 OD). Metepisternum dark green; punctate, smooth in between, striate near hind wing. Hind leg: coxa brown with weak green reflection; trochanter brown; setae = OD; femur brown; tibia light brown, with abundant tiny setae among long setae; tarsus light brown; basitarsus about 5.0 times longer than wide. Metapostnotum green; as long as scutellum; plane, mostly carinate, rugose medially, posterior surface rugulose. Propodeum dark green; long plumose setae (2.0 OD) intermixed with tiny decumbent setae; posterior surface sparsely punctate, imbricate in between; lateral surfaces mostly sparsely punctate, imbricate in between, denser punctuation anteriorly.

Metasoma. T1 anterior surface sparsely punctate, i = 3.0 PD, imbricate in between; dark brown; long setae up to 2.0 OD, tomentose setae peripherally. T1 dorsal surface sparsely punctate, i> 2.0 PD, punctures weak on disc; mostly brown with weak green reflection, dull; tiny setae at disc, lateral surfaces with longer setae (= OD). T2 sparsely punctate, i> 2.0 PD, imbricate in between; mostly green, dorsally darkened, dull; mostly with tiny setae, long setae (= OD) on lateral surfaces, premarginal setae ending near apical margin on sublateral surfaces. T3 weakly punctate, imbricate in between; mostly green, dull, marginal area brown; mostly with tiny setae, long setae (2.0 OD) near margin and lateral surfaces. T4 weakly punctate, imbricate in between; mostly green, dull, marginal area brown; mostly with tiny setae, long setae (2.0 OD) scattered on disc and lateral surfaces. T5 mostly brown with weak green reflection, apex brown; long setae (2.0 OD) intermixed with tiny setae. T6 brown; mostly with long setae (<2.0 OD). T7 brown. S1 dark brown; with long plumose setae (3.0 OD) medially, margin with tiny decumbent setae. S2 mostly dark brown, apical band yellowish; with long plumose setae (2.0 OD), tiny setae on apex. S3 mostly dark brown, apical band yellowish; medioapical margin slightly rounded; punctate, microreticulate in between; with long plumose setae (2.0 OD), tiny setae on apex. S4 mostly dark brown, apical band yellowish; medioapical margin almost straight; punctate, microreticulate in between; with long plumose setae (2.0 OD), tiny setae on apex, forming a tuft of thick setae medially. S5 depressed medially; mostly dark brown, apical band yellowish; setae length <2.0 OD. S6 brown; setae length = 2.0 OD, tiny setae on apex. S7 lateral apodemes shorter than half S8 width. S8 anterior projection <5.0 times longer than apical width.

Genitalia. Gonobase 2.0 times wider than long. Gonocoxite about 1.5 times longer than wide. Gonostylus: basal process reduced, not forming a lobe; inner lobe of ventral process globose, apex prolonged, with tiny setae and bristles intermixed; outer lobe of ventral process with setae slightly longer than ventral process size. Volsellar lower margin slightly curved. Gonapophysis lateral angles enlarged; ventral prong poorly produced; dorsal bridge margin weakly projected; apodeme narrow and weakly hooked.

Distribution. A. tenax sp. nov. is known from Northeastern Brazil, in the states of Bahia, Paraíba and Pernambuco and southwards to Espírito Santo.

Etymology. A Latin adjective meaning cohesive, tenacious, persistent. Name after the cohesive body punctuation of the species in comparison to other small Oxystoglossella.

Type material. Holotype, DZUP, ♀ “ DZUP \ 567859” “MARACÁS - BA\ Brasil 18-VIII-64\C. ELIAS LEG ” . Paratypes, DZUP, 85♀ 2♂ “MARACÁS - BA\ Brasil 18-VIII-64\C. ELIAS LEG ”, RPSP , 2♀ same data .

Examined material. Brazil, BA, DZUP, 1♀ “Anangé-Bahia Brasil\ 25 IV.1976 \ C.Elias & Enoque col.”, 2♀ “ITAMBÉ-BAHIA-BRASIL\19-22/VII/67\C.& C. T. Elias leg.”, 1♀ “ITAMBÉ - BRASIL \BAHIA- 23/7/1967 \ C. T. & C. Elias ”, 5♀ “ITAPETINGA - BAHIA \BRASIL 23-27/VII/67\C.& C. T. Elias leg.”, 10♀ “JEQUIE - BA\ Brasil 10-VIII-64\C. ELIAS, - LEG ”, 1♀ “MARACAS 970m \ Bahia Brasil\ VI-1961 \ F.M. Oliveira ”, 2♀ “ MA- RACÁS - Bahia \BRASIL-23-11/1964\ Claudionor Elias ”, 4♀ “MARACÁS - BA\ BRASIL IX-65\ F.M.Oliveira ”. PB, DZUP, 1♀ “Brasil, PB, São Paulo \do Cariri, EESJC \ Hora : 11:30 p:28\20/IV/994\ C.M.L.Aguiar col.”, 1♀ “SOLEDADE - PB \BRASIL- 18/11/1955 \ J.L. Azevedo leg”, UFPB, 3♀ “Brasil, PB, Cabeceiras ,\ Sitio Bravo (11km S\ Boa Vista / 31/VIII/992\ Hora : 9:50 P¨\ C.F. Martins ”, 1♀ “Brasil, PB, João Pessoa, B, Agua Fria \ 01/XII/2004 \ 11:00h\ M.S. Silveira Col ”, 1♂ “ Brasil, PB, Rio Tinto , Barra Mamanguape , 29/VII/2002, M.C.M. Silva col.”. PE, DZUP, 1♀ “Petrolina - Pe.\Brasil- 22.11.1960 \N.L.M.” .

Figures

FIGURE 16. Female of Augochlora tenax sp. nov.: A) habitus, B) frontal view of head, C) dorsal view of mesosoma, D) dorsal view of metasoma. Scale bar: 1.0 mm, all at same scale.