Ceratina silveirai, Mahlmann & Oliveira & Oliveira, 2023

Mahlmann, Thiago, Oliveira, Favízia Freitas de & Oliveira, Marcio Luiz de, 2023, Taxonomy of South American species of Ceratina (Calloceratina) Cockerell, 1924 with comments on new species-groups proposed for this subgenus (Hymenoptera: Apidae: Xylocopinae), EntomoBrasilis (e 1062) 16, pp. 1062-1062 : 8

silveirai species-group

Diagnosis. Moderate-sized species, body length ranges from 9.3-11.5; integument bright metallic green; yellow marks in females, when present, limited to clypeus and trochanters; body sparsely punctate leaving large, polished spaces between punctures especially on front and vertex (distance between punctures approximately equal to or wider than 1 DO); metapostnotum finely reticulate, sometimes almost polished and with a weak median carina; dorsoapical teeth of pro and mesotibia greatly asymmetric, the upper one much longer, mainly on females; graduli present on T2 to T4.

Male: Apical margin of T7 gently emarginate to almost straight with a short median angular projection; preapical margin of S5 without acute processes, apical margin broadly emarginate or deeply notched medially ( Figures 6 D-E, 8D-E).

Figures

Figure 6. (A - C) Allolotype ♂ of Ceratina (Calloceratina) silveirai sp. n. (A) dorsal habitus; (B) lateral habitus; (C) head in frontal view. (D - G) Paratype (m#) of Ceratina (Calloceratina) silveirai sp. n. (D) T7; (E) S5; (F) S6; (G) genital capsule. Scale bars: (A and B = 5.0 mm); (D - F = 1.0 mm); (G = 0.5 mm). Credit T.Mahlmann.