Scaptotrigona (Dasytrigona), 2022

Engel, Michael S., 2022, Notes on South American stingless bees of the genus Scaptotrigona (Hymenoptera: Apidae), Part III: A revised infrageneric classification and new species, Journal of Melittology 2022 (111), pp. 1-29 : 11

Dasytrigona Engel , new subgenus

ZooBank: urn:lsid:zoobank.org:act:21C3FC60-CDF0-495C-B90A-4DE856624D86

TYPE SPECIES: Nannotrigona (Scaptotrigona) fulvicutis Moure, 1964 .

DIAGNOSIS: This is the most distinctive of all the species of Scaptotrigona owing to its uniquely shaggy metasoma ( Fig. 9 ), in which the terga are covered with dense, long, fine, erect, yellow setae intermixed with similar short, appressed setae. In addition, the scape has numerous minute, erect to suberect bristles along its length, and the supraclypeal area is also beset with similar bristles ( Fig. 3 ). Aside from these unique apomorphies, the subgenus also has the integument entirely yellow orange to orange, has bristles on the vertex and mesoscutum longer than a median ocellar diameter, and lacks tomentum on metasomal terga III – V. The subgenus includes only the type species from northern Brazil .

ETYMOLOGY: The new subgeneric name is a combination of Ancient Greek adjective δᾰσῠ́ς (dasús, meaning, “shaggy”) and Trigona Jurine. The gender of the name is feminine.

Figures

Figures 7–9. Worker of Scaptotrigona (Dasytrigona) fulvicutis (Moure). 7. Lateral habitus. 8. Facial view. 9. Posterolateral view of metasomal dorsum.

Figures 3–6. Scapes of Scaptotrigona Moure. 3. Scaptotrigona (Dasytrigona) fulvicutis Moure. 4. S. (Gymnotrigona) guimaraesensis Laroca & Almeida. 5. S. (Scaptotrigona) magdalenae Engel. 6. S. (S.) gonzalezi Engel.