Megalopta atlantica Santos and Silveira, 2009

Santos, L. M. & Melo, G. A. R., 2014, Updating the taxonomy of the bee genus Megalopta (Hymenoptera: Apidae, Augochlorini) including revision of the Brazilian species, Journal of Natural History 49 (11), pp. 575-674 : 620-621

Megalopta atlantica Santos and Silveira, 2009

( Figures 9F , 10B , 11E , 12B , 15D )

Megalopta atlantica Santos and Silveira, 2009:14 . Holotype male, Brazil: Minas Gerais, Ipanema (DZUP, examined).

Diagnosis

The male differs from M. guarani sp. n. and M. karitiana sp. n. by the medial protruding process of S4 digitiform in lateral view and by rugulosities present in central portion of basal area of metapostnotum; from M. mapinguari sp. n. by the mesosoma homogeneously black to brown and by medial protruding process of S4 lacking setae in the apex; from M. xavante sp. n. by the integument black and by presence of rugulosities in the basal area of metapostnotum. This latter character also distinguishes M. atlantica from M. purpurata .

Description

Male. (15) Scape with diameter gradually enlarging toward the apex. (16) Flagellum blackish brown, F1–F11 not differing in diameter, F2 about two-thirds of F 3 in length, F6–F11, in anterior view, with the anterior and posterior margins flat ( Figures 9F , 10B ), in posterior view with basal glabrous area at same level of remaining surface. (17) Metanotum with integument, in dorsal view, not hidden by short plumose pilosity ( Figure 11E ). (18) Basal area of metapostnotum blackish brown; its length half of that metanotum; with longitudinal rugulosities present in central area, the rugulosities oblique towards the sides ( Figure 11E ). (19) Metepisternum with sparse pilosity, integument visible through pilosity; posterior upper margin of metepisternum unmodified, lacking a velvety process. (20) 1st and 2nd tarsomeres of foreleg with longest simple setae shorter than the summed length of the three apical tarsomeres. (21) S3 with longitudinal sulcus, posterolateral margin notched. (22) S4 with medial protruding process, profile of process digitiform in lateral view; basal portion glabrous; posterolateral margin notched, notch not extending to basal half of sclerite.

Measurements

Approximate body length: (12.5); intertegular distance: (3.35); maximum width of head: (3.12); length of forewing with tegula: (11.31).

Female. Unknown.

Distribution

BRAZIL. Minas Gerais: Ipanema ( Figure 15D ).

Figures

Figure 9. Males of Megalopta. (A) Dorsal view of flagellum of M. guimaraesi from Formosa, Brazil; (B) ventral view of sternum 3‒4 of M. amoena from Alenquer, Brazil; (C, E) dorsal view of head; (D, F) Frontal view of head; (C) M. guarani sp. n. from Chapada dos Guimarães, Brazil; (D) M. mapinguari sp. n. from Rio Branco, Brazil; (E) M. xavante sp. n. from Nova Xavantina, Brazil; (F) M. atlantica Santos & Silveira from Ipanema, Brazil. Scale bar 1 mm.

Figure 10. Males of Megalopta. (A, C) Frontal view of head; (B, D) frontal view of flagellomeres; (A) M. purpurata Smith (holotype) from Tefé, Brazil; (B) M. atlantica Santos & Silveira from Ipanema, Brazil; (C) M. yanomami sp. n. from Parauapebas, Brazil; (D) M. piraha sp. n. from Manaus, Brazil; (E) lateral view of sternum 4 of M. guarani sp. n. from Chapada dos Guimarães, Brazil; (F) posterolateral view of basal area of mesosoma M. guarani sp. n. from Chapada dos Guimarães, Brazil. Scale bar 1 mm, except in E, scale bar 0.1 mm.

Figure 11. Males of Megalopta. (A, C, D). Posterolateral view of mesosoma; (A) M. karitiana sp. n. from Ouro Preto do Oeste, Brazil; (B) ventral view of sternum 3‒4 of M. mapinguari sp. n. from Rio Branco, Brazil; (C) M. mapinguari sp. n. from Rio Branco, Brazil; (D) M. xavante sp. n. from Nova Xavantina, Brazil; (E) dorsal view of mesosoma of M. atlantica Santos & Silveira from Ipanema, Brazil; (F) posterior view of mesosoma of M. purpurata Smith (holotype) from Tefé, Brazil. Scale bar 1 mm.

Figure 12. Males of Megalopta. (A‒C) Habitus, dorsal view; (A) M. xavante sp. n. from Nova Xavantina, Brazil; (B) M. atlantica Santos & Silveira from Ipanema, Brazil; (C) M. purpurata (holotype) Smith from Tefé, Brazil; (D‒F) posterolateral view of mesosoma; (D) M. yanomami sp. n. from Parauapebas, Brazil; (E) M. piraha sp. n. from Manaus, Brazil; (F) M. munduruku sp. n. from Belterra, Brazil. Scale bar 1 mm.

Figure 15. Distribution records of Megalopta species. (A) M. chaperi Vachal; (B) M. guimaraesi Santos & Silveira (black circles) and M. mura sp. n. (grey squares); (C) M. piraha sp. n (grey squares) and M. yanomami sp. n. (black circles); (D) M. atlantica Santos & Silveira (grey square), M. guarani sp. n (triangle), M. xavante sp. n (hexagon), M. karitiana sp. n (black circle), M. mapinguari sp. n (black square) and M. purpurata Smith (grey circle).