Augochlora daphnis Smith, 1853: 77 Odontochlora amphitrite Schrottky, 1909: 142 Odontochlora styx Schrottky 1909: 143 Odontochlora thebe Schrottky 1909: 143 Odontochlora lethe Schrottky 1909: 144 Odontochlora dolichocephala Moure, 1941: 43 A revision of the bee genus Augochlora Smith (Hymenoptera; Apoidea) in Southern South America Lepeco, Anderson Gonçalves, Rodrigo Barbosa Zootaxa 2020 2020-12-24 4897 1 1 97 JQ2Y Smith, 1853 Smith. A 1853 [151,724,151,178] Insecta Halictidae Augochlora Animalia Hymenoptera 28 29 Arthropoda species daphnis Augochlora  ( Figures 1B; 13A–D; 14A–D; 51A)      Augochlora daphnis  Smith, 1853: 77, holotype³ (BMNH) from Uruguay, Montevideo. Examinedthrough photographs.     Odontochlora amphitrite  Schrottky, 1909: 142, syntypes ♀³ (whereabouts unknown) from Argentina, Buenos Aires.  Newsynonym.     Odontochlora styx  Schrottky 1909: 143, syntypes ♀(whereabouts unknown) from Paraguay, Alto Paraná, Puerto Bertoni. New synonym.     Odontochlora thebe  Schrottky 1909: 143, holotype³ (whereabouts unknown) from Argentina, Buenos Aires.  Newsynonym.     Odontochlora lethe  Schrottky 1909: 144, syntypes³ (whereabouts unknown) from Paraguay, Alto Paraná, Puerto Bertoni. New synonym.     Odontochlora dolichocephala  Moure, 1941: 43, holotype ♀(DZUP) from Brazil, São Paulo, Rio Claro. Examined. Newsynonym.   Diagnosis.Among the species bearing well-marked medial furrow on scutellum and an angulation separating the anterior and posterior surfaces on hind coxa ventrally, females of  A. daphnisare the only in the studied area with swollen distal part of adductor ridge and black or entirely blue morphs. From  A. braziliensis,females can be separated by the larger and contiguous punctures on lower paraocular area, well developed spiniform projection on S1 and abundant dark setae on the legs; males are diagnosed by the presence of larger punctures on S1 and S2 and preepisternum contiguously punctate. Additional characteristics are legs usually darker, near to black, and metasomal terga with apical black bands.   Comments.Comparing the original species descriptions, the redescription of  O. amphitriteby Dalmazzo & Roig-Alsina (2011), the images of  Augochlora daphnistype and the examined material we concluded that there were no consistent characters supporting the hypothesis that  O. amphitriteand  A. daphniscorrespond to distinct species. The same interpretation was given by the personal annotations taken by Father J. S. Moure when examining the type of  A. daphnisduring his visit to BMNH. We examined photographs of the holotypeand more than 115 malespecimens to conclude that the yellowish tegula cited by Dalmazzo & Roig-Alsina (2011)along with other characteristics only represents intraspecific variation. Furthermore, no other similar species has been recorded in Uruguay,  A. daphnistype locality. Thus, even  A. amphitritebeing a very common name in literature, we conclude that it is mandatory to synonymize this name under  A. daphnis. Father J. S. Moure’s  O. dolichocephalatype corresponds to a bluish specimen with a slightly narrowed head but falling in  A. daphnismorphological variation space.  Odontochlora styx,  O. letheand  O. thebewere already considered as junior synonyms with  O. amphitriteby previous authors ( Dalmazzo & Roig-Alsina 2011; Lepeco & Gonçalves 2018). For species redescription and more comments on type material see Dalmazzo & Roig-Alsina (2011). Nest structure and life-history were studied by Sakagami & Moure (1967)and Dalmazzo & Roig-Alsina (2012, 2018a), diet preferences by Dalmazzo & Vossler (2015a; 2015b), and morphological variation by Lepeco & Gonçalves (2018). A gynandromorph specimen was described by Alvarez et al.(2014). Color and structural variation in this species were already noted by Dalmazzo & Roig-Alsina (2011)and by Lepeco & Gonçalves (2018), certainly being the reason why C. Schrottky described the species four times in the same paper. This may be the unluckiest species of the genus, since the type series of four species names were probably lost in a Paraguayan civil war ( Rasmussen et al.2009) and the holotypeof  A. daphnishad its head replaced by a glued  Augochloropsishead (Dalmazzo & Roig-Asina 2011).   Distribution.This is a very common species in southern South America, occurring in the Brazilian states of Minas Gerais, Paraná, Rio Grande do Sul, Santa Catarina, and S„o Paulo. In Argentinathe species is recorded in the provinces of Buenos Aires, Chaco, Córdoba, Entre Ríos, Jujuy, Misiones, San Luís, and Santa Fé.  Augochlora daphnisis also recorded in Paraguayand Uruguay. 3009686322 [364,529,255,280] BMNH Uruguay Examined 28 29 1 Montevideo holotype 3009686310 [417,636,286,310] Argentina New 28 29 1 1 Ciudad Autonoma de Buenos Aires syntype 3009686325 [345,554,348,372] Paraguay Alto Parana 28 29 1 1 Alto Parana syntype 3009686329 [361,570,409,433] Argentina New 28 29 1 Ciudad Autonoma de Buenos Aires holotype 3009686337 [354,561,440,464] Paraguay Alto Parana 28 29 1 Alto Parana syntype 3009686345 [464,637,501,525] DZUP Brazil Rio Claro. Examined. New 28 29 1 1 Sao Paulo holotype