Augochlora, Smith, 1853

Lepeco, Anderson & Gonçalves, Rodrigo Barbosa, 2020, A revision of the bee genus Augochlora Smith (Hymenoptera; Apoidea) in Southern South America, Zootaxa 4897 (1), pp. 1-97 : 6-8

publication ID

https://doi.org/10.11646/zootaxa.4897.1.1

publication LSID

lsid:zoobank.org:pub:1C8AA826-36BA-4F48-8F67-6DCD62DFC20F

DOI

https://doi.org/10.5281/zenodo.4421111

persistent identifier

https://treatment.plazi.org/id/507B87CD-AD6B-B558-FF72-2F6DCF8CFA94

treatment provided by

Plazi

scientific name

Augochlora
status

 

Key to Augochlora species of Southern South America ( Argentina, Paraguay, Uruguay and Brazilian states of Paraná, Rio Grande do Sul, and Santa Catarina)

Additional figures from previous works may help to visualize many structures mentioned along the key. Microscopy photographs of the pseudopygidial area on T 5 can be found in Dalmazzo & Roig-Alsina (2011, Figs. 11 View FIGURE 11 and 12 View FIGURE 12 ). Labrum basal elevation was illustrated by Eickwort (1969 a, Figs. 153 and 156) and photographed by Lepeco & Gonçalves (2020, Fig. 1 View FIGURE 1 ). Hypostomal carina was illustrated by Dalmazzo & Roig-Alsina (2011, Fig. 6 View FIGURE 6 ). Preepisternum and metapostnotum sculpturing was photographed by Lepeco & Gonçalves (2020, Fig. 2 View FIGURE 2 ).

Females

1 Mandible preapical tooth small and rounded, produced far from mandible apex ( Fig. 1A View FIGURE 1 ); T 5 pseudopygidial area covered by scale-like decumbent setae pointing towards midline; blue iridescences usually absent or very faint................................................................................................. 2 (Subgenus Oxystoglossella )

- Mandible preapical tooth large and sharp, produced near mandible apex (as in Figs. 1B, C View FIGURE 1 ); T 5 pseudopygidial area not covered by scale-like setae, colliculate integument exposed; blue iridescences usually present...... 5 (Subgenus Augochlora s. str.)

2(1) S1 with a tuberculate elevation (as in Fig. 1I View FIGURE 1 ); hypostomal carina not projected anteriorly; labrum basal elevation slight, not well defined................................................................. Augochlora mendax sp. nov.

- S1 without tuberculate elevation (as in Fig. 1H View FIGURE 1 ); hypostomal carina projected anteriorly (forming a tooth in A. iphigenia ); labrum basal elevation well defined, orbicular or transverse.................................................... 3

3(2) Labrum basal elevation transverse; hypostomal carina forming a tooth anteriorly; preepisternum rugulose; lower paraocular area sparsely punctate (I> PD).................................................. A. iphigenia Holmberg, 1886

- Labrum basal elevation orbicular; hypostomal carina not forming a tooth; preepisternum punctate near pronotal lobe or entirely rugose; lower paraocular area contiguously punctate........................................................ 4

4(3) Preepisternum punctate near pronotal lobe; mesoscutum anterior border not rugulose; metapostnotum posterior surface microreticulate; gena and post gena punctate to weakly striate; metasoma without copper-red reflections.................................................................................................. A. aurinasis (Vachal, 1911)

- Preepisternum rugose, without distinct punctures; mesoscutum anterior border rugulose; metapostnotum posterior surface with transversal carinae; gena and post gena strongly striate; metasoma with copper-red reflections.... A. morrae Strand, 1910

5(1) Metasoma with strong copper-red reflections; T 3 with tiny setae overlapping apical margin sublaterally; labrum brown to dark brown, basal elevation orbicular........................................................... A. hestia sp. nov.

- Metasoma never with copper-red reflections; T 3 with tiny setae not reaching apical margin sublaterally; labrum usually black, basal elevation transverse, sometimes not well defined....................................................... 6

6(5) T 1 apex not inflexed (as in Fig. 2A View FIGURE 2 ), dorsal surface usually with very weak punctures or impunctate; anterior and posterior surfaces of hind coxa ventrally separated by strong angulation; scutellum with a strongly marked medial furrow......... 7

- T 1 apex inflexed (curved towards T 2 base, as in Fig. 2B View FIGURE 2 ), dorsal surface usually with well-defined punctures; anterior and posterior surfaces of hind coxa ventrally separated by a slightly curved area; scutellum medial furrow absent or inconspicuous. .................................................................................................. 10

7(6) Hypostomal carina projected as a tooth anteriorly; S1 without projection ( Fig. 1H View FIGURE 1 ); head with elongated aspect (as in Figs. 15B and 26C), clypeus usually longer than wide................................................................ 8

- Hypostomal carina not projected anteriorly; S1 with spiniform projection ( Figs. 1J, L View FIGURE 1 ); head with a more rounded aspect (as in Figs. 7B View FIGURE 7 and 13B View FIGURE 13 ), the clypeus not longer than wide......................................................... 9

8(7) Mesoscutum with anterior setae short (length ~ 1 OD); clypeus and supraclypeal area often with darkened spots........................................................................................... A. esox (Vachal, 1911)

- Mesoscutum with anterior setae long (length ~ 2 OD); clypeus and supraclypeal area never with darkened spots............................................................................................... A. hirsuta sp. nov.

9(7) Lower paraocular area contiguously punctate, regular sized punctures; outer surface of hind tibia and tarsus with dark setae; scutellum with dark setae; mandible distal part of adductor ridge strongly swollen ( Fig. 1B View FIGURE 1 ); body usually green with blue iridescences, although entirely blue or black specimens are common.......................... A. daphnis Smith, 1853

- Lower paraocular area with crowded weak punctures among larger piligerous punctures; outer surface of hind tibia and tarsus only with pale setae; mandible distal part of adductor ridge weakly swollen; scutellum without dark setae; body usually green with golden reflections, black specimens are uncommon............................. A. braziliensis (Vachal, 1911)

10(6) Epistomal angle weakly protruding over clypeus; clypeus apex prolonged over apical border; metapostnotum medioapical margin smooth, without carinae; frons slightly protuberant above antennal sockets; overall body and appendices with swollen appearance (as in Fig. 23A, B View FIGURE 23 )............................................................ A. helena sp. nov.

- Epistomal angle strongly protruding over clypeus; clypeus apex not prolonged over apical border; metapostnotum medioapical margin carinate to rugulose, never smooth; frons not protuberant above antennal sockets; body and appendages not as above .................................................................................................. 11

11(10) S1 with a spiniform projection ( Figs. 1 View FIGURE 1 J–L); mandible medial portion strongly constricted, with about half basal width ( Fig. 1C View FIGURE 1 ); mid-trochanter ventral margin often swollen ( Figs. 1 View FIGURE 1 E–G)............................................... 12

- S1 without a spiniform projection, sometimes with a tuberculate elevation ( Figs. 1H, I View FIGURE 1 ); mandible medial portion not strongly constricted, minimum width on medial portion between 0.7x and 0.9x basal width ( Fig. 1B View FIGURE 1 ); mid-trochanter ventral margin not swollen ( Fig. 1D View FIGURE 1 )................................................................................... 20

12(11) Mid trochanter expanded ventrally, total width subequal to length ( Fig. 1G View FIGURE 1 ); sublateral surfaces of T 2 marginal area with punctate portion shorter than apical dark band ( Fig. 3G View FIGURE 3 ), which is usually concave in lateral view; T 1 anterior surface always with dense coverage of tomentose setae...................................................................... 13

- Mid trochanter ventral margin variable, but not widely projected ( Figs. 1 View FIGURE 1 D–F); sublateral surfaces of T 2 marginal area with punctate portion usually as long as or longer than impunctate apical dark band ( Fig. 3F View FIGURE 3 ), which is never concave in lateral view; T 1 anterior surface variable, often without tomentose setae.................................................. 14

13(12) T 1 sparsely punctate, apex inflected, but not forming a tubular border (as in Fig. 2B View FIGURE 2 ); S1 projection short (as in Fig. 1J View FIGURE 1 ); mesoscutum punctation sparser dorsally posterior to median line (I> PD), with a darkened spot; body punctation not coarse; head blue with cyan-green iridescences....................................................... A. atlantica sp. nov.

- T 1 densely punctate, apex inflexed forming a tubular border; S1 projection long and broad (as in Fig. 1L View FIGURE 1 ); mesoscutum densely punctate posterior to median line (I <0.5 PD), without darkened spot; body punctation coarse; head without cyan iridescences............................................................................ A. mulleri Cockerell, 1900

14(12) Preepisternum rugose; S1 projection long and slender ( Fig. 1K View FIGURE 1 ); mesoscutum punctation slightly sparser posterior to median line, usually microreticulate in between; metapostnotum carinae strong......................................... 15

- Preepisternum usually punctate (rugose in some A. genalis sp. nov.); S1 projection not as above ( Figs. 1J, L View FIGURE 1 ); mesoscutum punctation variable, usually not microreticulated; metapostnotum carinae often weakly marked...................... 16

15(14) Mid-trochanter ventral margin swollen near base ( Fig. 1E View FIGURE 1 ); T 1 dorsal surface with abundant tiny punctures, mostly black with purplish iridescences.......................................................... A. francisca Schrottky, 1902

- Mid-trochanter ventral margin almost straight (as in Fig. 1D View FIGURE 1 ); T 1 dorsal surface with average size punctures, green with golden reflections.......................................................................... A. scabrata sp. nov.

16(14) Pronotum dorsolateral angle obtuse ( Fig. 3C View FIGURE 3 ), reflexed upwards and with minute angle posteriorly at midlength; mandible distal part of adductor ridge inconspicuous ( Fig. 1C View FIGURE 1 ); hypoepimeral area contiguously punctate; head always swollen after ocelli..................................................................................... A. genalis sp. nov.

- Pronotum dorsolateral angle orthogonal or with a projected acute tip (as in Figs. 3A, B View FIGURE 3 ), usually not reflexed upwards and without minute angle posteriorly; mandible distal part of adductor ridge conspicuous, slightly to strongly swollen; hypoepimeral area densely punctate (I < PD), but not contiguous; head usually not swollen after ocelli, eventually so in macrocephalic females........................................................................................... 17

17(16) Pronotum dorsolateral angle with a projected acute tip ( Fig. 3B View FIGURE 3 ); T 1 coarsely punctate, with dense coarse punctures after dorsolateral convexity; mesoscutum with sparser punctation (I = PD) posterior to median line; S1 ventral projection with rounded tip (as in Fig. 1L View FIGURE 1 ).................................................................... A. australis sp. nov.

- Pronotum dorsolateral angle orthogonal ( Fig. 3A View FIGURE 3 ); T 1 not coarsely punctate, with tiny punctures after dorsolateral convexity; mesoscutum usually with homogeneously distributed punctures dorsally, I < PD; S1 ventral projection variable ........ 18

18(17) Labrum basal elevation not well defined laterally; metapostnotum almost entirely rugulose, often without well-defined carinae; legs dark brown to black, body mostly bluish, without golden reflections..................... A. laevicarinata sp. nov.

- Labrum basal elevation well defined, transverse; metapostnotum carinate; legs usually light brown, rarely dark, body often with golden reflections................................................................................... 19

19(18) Mid-trochanter ventral margin widely rounded ( Fig. 1F View FIGURE 1 ); S1 projection usually with rounded tip ( Fig. 1L View FIGURE 1 )........................................................................................ A. phoemonoe ( Schrottky, 1909)

- Mid trochanter ventral margin straight ( Fig. 1D View FIGURE 1 ); S1 projection often with acute tip (as in Fig. 1J View FIGURE 1 ). A. seitzi Cockerell, 1929

20(11) Sublateral surface of T 2 marginal area with punctate portion usually as long as or longer than impunctate apical dark band ( Fig. 3F View FIGURE 3 ); mesoscutum punctation usually with homogeneous interspaces (slightly sparser in A. jugalis posterior to median line), average size punctures............................................................................... 21

- Sublateral surface of T 2 marginal area with punctate portion shorter than apical dark band ( Fig. 3G View FIGURE 3 ); mesoscutum with heterogeneous punctation interspaces, with tiny to foveate punctures................................................ 22

21(20) Metapostnotum apex rugulose, without carinae; mandible distal part of adductor ridge strongly swollen (as in Fig. 1B View FIGURE 1 ); mid femur not flattened, about 4x longer than maximum width; mesofemoral brush with yellowish setae; mesosoma green; tergal discs metallic............................................................... A. nausicaa ( Schrottky, 1909)

- Metapostnotum carinae reaching apex; mandible distal part of adductor ridge weakly swollen; mid femur flattened, about 3x longer than maximum width; mesofemoral brush with dark setae; mesosoma darkened; tergal discs darkened............................................................................................ A. jugalis (Vachal, 1911)

22(20) Mesoscutum and mesepisternum with foveate punctures ( Figs. 17A, C View FIGURE 17 and 34A, C View FIGURE 34 ); propodeum lateral carinae ending above propodeum half, mixing with foveate punctures; body usually black; head with copper and golden reflections.......... 23

- Mesoscutum and mesepisternum punctation variable, small to coarse punctures; propodeum lateral carinae ending below propodeum half; body color variable ...................................................................... 24

23(22) Preepisternum crowded punctate to rugose; mesofemoral brush with yellowish setae; mesosoma mostly green and blue with some darkened areas............................................................ A. foxiana Cockerell, 1900

- Preepisternum densely to contiguously punctate near pronotal lobe; mesofemoral brush with dark setae; mesosoma mostly black with few metallic reflections................................................ A. perimelas Cockerell, 1900

24(22) S1 with a tuberculate elevation (as in Fig. 1I View FIGURE 1 ); hypoepimeral area contiguously punctate; head usually with copper and golden reflections, mesosoma green and terga blue......................................... A. cydippe (Schrottky, 1910)

- S1 without elevation ( Fig. 1H View FIGURE 1 ); hypoepimeral area densely punctate (I = 0.5 PD); body color never with the combination above............................................................................................. 25

25(24) Mesoscutum with some scattered tiny punctures, smooth to loosely imbricate in between and usually with golden and purplish iridescences; scutellum with sparse tiny punctures................................. A. thusnelda ( Schrottky, 1909)

- Mesoscutum punctation size homogeneous, microreticulate in between and usually green or black; scutellum with dense average size punctures................................................................................... 26

26(25) T 1 anterior surface with dense coverage of tomentose setae; mesoscutum densely punctate anteriorly, becoming sparser on disc posterior to median line, green; metapostnotum as long as metanotum, medioapical margin without transverse carinae................................................................................. A. caerulior Cockerell, 1900

- T 1 anterior surface without tomentose setae; mesoscutum sparsely punctate on disc, I> PD, disc usually darkened; metapostnotum longer than metanotum, medioapical margin with transverse carinae.................................................................................................................... A. pyrgo (Schrottky, 1910)

T

Tavera, Department of Geology and Geophysics

PD

Dutch Plant Protection Service, Culture Collection of Plant Pathogenic Bacteria

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae