Ancyloscelis apiformis (Fabricius)

Schaller, A. & Roig-Alsina, A., 2021, A revision of the bee genus Ancyloscelis (Hymenoptera: Apidae) in Argentina, Zootaxa 4980 (3), pp. 521-540 : 531

Ancyloscelis apiformis (Fabricius)

( Figs.6A , 7A , 8A , 11A , 13E )

Chalcis apiformis Fabricius, 1793: 195 .

Ancyloscelis apiformis: Steiner et al., 2010: 21 , 32, 38. Galvani et al., 2012: 675, 678, 679, 684–686. Pick & Schlindwein, 2011: 147, 152,154. Martínez-Adriano et al., 2015: 160–162. Santos & Gimenes, 2016: 1–5. Araujo et al., 2018: 4.

Diagnosis. This species is characterized by its small size, the length of the forewing being 4.3–6.0 mm. The antenna is entirely orange in the male ( Fig. 8A ), and varies in the female, the flagellum being orange to brown, but scape and pedicel always orange. The pronotal lobe is also orange. The male has a strongly developed inner tooth on the hind basitarsus ( Fig. 11A ). The hidden sterna and genital capsule have been drawn by Michener (1954) and Rodríguez and Roig-Alsina (2004).

Comments. The extensive synonymy of this species has been treated by Moure & Melo (2007); only recent citations are mentioned above.

Distribution. From U.S.A. to Argentina. Argentina: provinces of Buenos Aires, Córdoba, Santiago del Estero, San Juan, Santa Fe, Chaco, La Rioja, Mendoza, Salta, Misiones, Jujuy, Salta, Tucumán, Entre Ríos, and San Luis.

New records. Argentina. Buenos Aires: 1 ♂, Burzaco Sea L., 12-13-III-1974, C & M Vardy ( NHMUK) ; 1 ♂, Buenos Aires, XII-9-1902, J. Brethes ( MACN) ; 1 ♂, Buenos Aires, march ( MACN) ; 1 ♂, San Pedro , 3-I-2009, Roig-Alsina ( MACN) ; 2 ♂, 2 ♀, Sierra de la Ventana, 18-II-2016, Companucci ( MACN) ; 1 ♀, Reserva Ecologica Costanera Sur , 24-II-2012, Companucci, Galvani y González V. ( MACN) ; 1 ♀, Reserva Ecologica Costanera Sur , 2- III-2012, Companucci, Galvani y González V. ( MACN) . Santiago del Estero: 1 ♂, Colonia Dora , 15/ 26-XI-1979, C & M Vardy ( NHMUK) . Chaco: 1 ♂, Colonia Mixta , 4-I-2017, A. Schaller ( MACN) ; 2 ♂, Colonia Elisa , 15-XI- 2017, 18-III-2019, A. Schaller ( MACN) , 3 ♂, Resistencia , 11- XI-2017, A. Schaller ( MACN) , 10 ♂, 7 ♀, Puerto Tirol 26-XI-2018 A. Schaller ( MACN) . Córdoba: 2 ♂, 2 ♀, E. Giacomelli ( MACN) . Entre Ríos: 1 ♂, Paraná, XI ( MACN) ; 1 ♂, Liebig , 19-XII-2004, Roig-Alsina ( MACN) . San Juan: 2 ♂, 6 ♀, PN El Leoncito, 26-I-2006 Companucci, Ojanguren and Piacentini ( MACN) . Santa Fe: 1 ♂, Rosario 10-XII-1945 A.O ( MACN) .

Figures

FIGURE 6. Females, A. apiformis species group, lateral view. A, A. apiformis (Fabricius). B, A. nigricornis Rodríguez & Roig- Alsina. C, A. romeroi (Holmberg). D, A. saltensis Rodríguez & Roig-Alsina. Scale lines = 0.1 mm.

FIGURE 7. Males, A. apiformis species group, lateral view. A, A. apiformis (Fabricius). B, A. nigricornis Rodríguez & Roig- Alsina. C, A. romeroi (Holmberg). D, A. saltensis Rodríguez & Roig-Alsina. Scale lines = 0.1 mm.

FIGURE 8. Males, A. apiformis species group, head, frontal view. A, A. apiformis (Fabricius). B, A. nigricornis Rodríguez & Roig-Alsina. C, A. romeroi (Holmberg). D, A. saltensis Rodríguez & Roig-Alsina.

FIGURE 11. Males, A. apiformis species group, posterior basitarsus, ventral view.A, A. apiformis (Fabricius). B, A. nigricornis Rodríguez & Roig-Alsina. C, A. romeroi (Holmberg). D, A. saltensis Rodríguez & Roig-Alsina. Scale lines = 0.2 mm.

FIGURE 13. A–H, distribution map of Ancyloscelis species in Argentina.A, A. bonariensis. B, A. halictoides. C, A. holmbergi. D, A. mesopotamica. E, A. apiformis. F, A. nigricornis. G, A. romeroi. H, A. saltensis. Black dots, records from literature; red dots, new records.