Trigona (Dichrotrigona) sesquipedalis Almeida, 1984

Ribeiro, Cristiano Feitosa, Nogueira, David Silva & Oliveira, Marcio Luiz de, 2024, Taxonomic notes with update of records of Trigona (Dichrotrigona) Engel, 2021 (Hymenoptera: Apidae: Meliponini), EntomoBrasilis (e 1052) 17, pp. 1-5 : 2

Trigona (Dichrotrigona) sesquipedalis Almeida, 1984

( Figure 2 E-H)

Trigona (Trigona) sesquipedalis Almeida, 1984: 138 , 139, 140, 141, 142 [original description]; Camargo et al. 2013 [catalog, geographic destribution].

Diagnosis: This species is similar to T. (D.) dimidiata in the lower half of the glabrous and polished supraclypeal area. But differs by the following combination of traits: wings membrane and veins infuscate in approximately 2/3 basal, sub-marginal cell slightly darkened; T3 with setae relatively long (0.22 mm) and dense in the the middle region, setae with about 1x the scape diameter; total body length approximately 9.6 mm.

Geographic distribution: Brazil (Amapá, Roraima); French Guiana (Sinnamary).

Examined type material: One worker (paratype) was examined through of digital image. BRASIL, Amapá: Serra do Navio, x-1957, K. Lenko leg. / Trigona dimidiata Smith, Det. Moure, 1973 / T. (Trigona) sesquipedalis Det. Camargo, 1982 / Paratype Trigona sesquipedalis Almeida, 1984 / ColeÇão Campos SEABRA, ( RPSP).

Additional material examined: (13 workers): BRAZIL, Roraima: Caroebe , 00°52’49”N 59°41’53”W (0.88027777777778, -59.698055555556), alt. 115m 06.XII.2006. / Silva, S.J. R.; Grigio Jr., O. & Otaviano, A. A., Em flor de Senna sp. / 13 op. - nos. 3527, 3545, 3538, 3533, 3544, 3530, 3535, 3529, 3536, 3531, 3534, 3537 e 3528 MIRR ( INPA) .

Comments: This species was described by Almeida (1984) based on ten workers specimens, the holotype and nine paratypes, all from Serra do Navio, Amapá, Brazil. The records were expanded to Sinnamary, French Guiana in the subsequent publication by Roubik (1990). The record of this species in the municipality of Caroebe in the state of Roraima in Brazil, favors to the understanding of the distribution of species of subgenus, in addition to confirming the first record of Trigona (D.) sesquipedalis in the state.

Figures

Figure 2. Worker of Trigona (Dichrotrigona) dimidiata Smith, 1854. A-Lateral habitus. B-Head, frontal view. C-Dorsal habitus. D-Metatibia and metabasitarsus. Worker of Trigona (D.) sesquipedalis Almeida, 1984. E-Lateral habitus. F-Head, frontal view. G-Dorsal habitus. H-Metatibia and metabasitarsus. Scale bars: 1 mm.