Celetrigona

Camargo, João M. F. & Pedro, Silvia R. M., 2009, Neotropical Meliponini: the genus Celetrigona Moure (Hymenoptera: Apidae, Apinae), Zootaxa 2155, pp. 37-54 : 39-40

Key to the species of Celetrigona , workers

1 Basal half of scape with 3–7 robust, erect bristles, very long, 2.6–4.3x scape diameter or more ( Fig. 7 ); on pedicel and fl.1 erect bristles short, no longer than 1.5x fl.3 diameter (Acre, Brazil, San Martin, Peru, Fig. 16 ).......................................................................................................................................................................... C. euclydiana sp. nov.

- Basal half of scape with slender bristles, shorter than or equal to scape diameter; if longer, only 1–3 bristles just on base of scape, no longer than 2.3x scape diameter. Variable on pedicel and fl.1 ( Figs. 5, 6, 8 )................................... 2

2 Bristles on posterior surface of fl.1 longer, about 2.5–4.5x fl.3 diameter ( Fig. 8 ), following flagellomeres with a sequence of long erect bristles to progressively shorter, aligned ( Fig. 9 ) (Rondônia, southwestern Amazonas, Fig. 16 )............................................................................................................................................ C. hirsuticornis sp. nov.

- Bristles on fl.1 shorter, no longer than 0.8–2.0x fl.3 diameter; erect bristles on following flagellomeres shorter than fl.3 diameter, approximately of uniform length ............................................................................................................ 3

3 Erect bristles on apical half of scape scarce, shorter than or equal to those on basal half ( Fig. 5 ); no modified bristles on apex of scape (southern Amazon to Central Brazil, Peru and Bolivia, Fig. 16 ).......... C. longicornis ( Friese, 1903)

- Erect bristles on apical half of scape abundant, as long as or longer than on basal half; some recurved bristles on apex of scape ( Fig. 6 ) (northern Amazon to Guiana and French Guiana, Fig. 16 )...................... C. manauara sp. nov.

Figures

FIGURE 16. Celetrigona, geographic records. The “? ” mark indicates uncertainty regarding the correct position of the “ Shudihar river ”, Guiana.

FIGURES 5 – 9. Celetrigona, workers, antennal pilosity: 5 – C. longicornis, Barra do Garças, Mato Grosso, Brazil; 6 – C. manaura, sp. nov., paratype, Manaus, Amazonas, Brazil; 7 – C. euclydiana sp. nov., paratype (971019), Parque Nacional Serra do Divisor, Acre, Brazil; 8, 9 – C. hirsuticornis sp. nov., Guajará-Mirim, Rondônia, Brazil. Scales = 0, 1 mm.