Ceratina (Ceratinula) Moure, 1941

Oliveira, Favizia Freitas de, Silva, Livia Raquel de Sousa, Zanella, Fernando Cesar Vieira, Garcia, Caroline Tito, Pereira, Heber Luiz, Quaglierini, Claudia & Pigozzo, Camila Magalhaes, 2020, A new species of Ceratina (Ceratinula) Moure, 1941, with notes on the taxonomy and distribution of Ceratina (Ceratinula) manni Cockerell, 1912, and an identification key for species of this subgenus known from Brazil (Hymenoptera, Apidae, Ceratinini), ZooKeys 1006, pp. 137-165 : 137

Ceratina (Ceratinula) Moure, 1941

Type species.

Ceratina lucidula Smith, 1854 by original designation.

Diagnosis.

Minute bees (3-6 mm long); usually metallic (rarely with the metasoma red); body elongated, with a slightly petiolate metasoma, the first segment as elongate-triangular; integument with extensive impunctate smooth areas, especially on head (paraocular area above antenna and on gena, sometimes on the whole head) and on mesonotum; second submarginal cell narrowed, sometimes converging to a point anteriorly, becoming almost triangular ( Moure 1941; Michener 2007).

Among the species of Ceratina (Ceratinula) occurring in South America, C. (C.) fioreseana Oliveira, sp. nov. is similar to C. (C.) manni , especially in the pattern of facial maculation (Fig. 8 ). However, it is easily distinguished by the smaller and slimmer body, the color of the legs, antennal scape, pedicel and first three flagellomeres (honey-yellow in Ceratina fioreseana sp. nov. and dark brown in Ceratina manni ); the integumental microsculpture on the paraocular region and on the upper part of the clypeus (smooth in Ceratina fioreseana sp. nov. and microreticulate in Ceratina manni ); the yellow genal stripe (following the orbit in the lower region in Ceratina fioreseana sp. nov. and on the upper portion of the head diverging upward from the orbit in Ceratina manni ).

The male genitalia also differ widely between the species, especially in the structure and shape of the valves, gonostyle, S5, S6 and S7 (Figs 3A-F ; 7A-F ).

Figures

Figure 3. Male genitalia and associated metasomal sternum of paratype of Ceratina (Ceratinula) fioreseana sp. nov., deposited at the Entomological Collection of the Natural History Museum of the Federal University of Bahia (MHNBA-MZUFBA), in Salvador, Bahia, Brazil A genital capsule in dorsal view B genital capsule in ventral view C genital capsule in lateral view D seventh sternum in dorsal view (E 7) E sixth sternum in dorsal view (E 6) F fifth sternum in dorsal view (E 5) G seventh tergum in dorso-lateral view.

Figure 7. Male genitalia and associated metasomal sternum of Ceratina (Ceratinula) manni Cockerell, 1912, specimen from Serra Negra do Norte, Rio Grande do Norte, Brazil, deposited at the Entomological Collection of the Federal University of Integracao Latino-Americana (CE-UNILA), in Foz do Iguacu, Parana, Brazil A genital capsule in dorsal view (red arrow shows the bidentate apex) B genital capsule in ventral view C genital capsule in lateral view D seventh sternum in dorsal view (E 7) E sixth sternum in dorsal view (E 6) F fifth sternum in dorsal view (E 5).

Figure 8. Head of Ceratina (Ceratinula) Moure, 1941 species in frontal view A (female holotype) B (male paratype) Specimens of Ceratina (Ceratinula) fioreseana sp. nov., deposited at the Entomological Collection of the Natural History Museum of the Federal University of Bahia (MHNBA-MZUFBA), in Salvador, Bahia, Brazil C, D Ceratina (Ceratinula) manni Cockerell, 1912: C female specimen from Amelia Rodrigues, Bahia, deposited at the Reference Collection of the Laboratorio de Bionomia, Biogeografia e Sistematica de Insetos (BIOSIS), Federal University of Bahia (MHNBA-MZUFBA), in Salvador, Bahia, Brazil D male specimen from Crato, Ceara, deposited at the Entomological Collection of the Federal University of Integracao Latino-Americana (CE-UNILA), in Foz do Iguacu, Parana, Brazil. Drawings by Luisa de Lima Ruschioni.