Scaptotrigona depilis, (MOURE)

Rozen, Jerome G., Almeida, Eduardo A. B., Smith, Corey Shepard & Jones, Lance Eric, 2021, Intratribal Variation among Mature Larvae of Stingless Bees (Apidae: Meliponini) with Descriptions of the Eggs of 11 Species, American Museum Novitates 2021 (3971) : -

SCAPTOTRIGONA DEPILIS (MOURE)

Figures 3A, B, 18, 39A, B

DESCRIPTION: Head: Size small relative to body size (fig. 18).

Mandible tapering from broad base to long slender apex (fig. 39B); apex pigmented; mandible of cleared specimen seen in dorsal, inner, or ventral views (fig. 3A, B) slender, tapering evenly from base to pointed apex; apical concavity narrow, about as long as distance from mandibular base at base of cusp; dorsal edge of apical concavity with numerous long, slender, sharp spines; ventral edge smooth or nearly so; dorsal mandibular surface (fig. 3A) strongly spiculate particularly near basal edge of apical concavity; some spicules also on basal inner surface of concavity.

Body: Anterior body segments with distinct but small, projecting, paired dorsolateral tubercles (fig. 39A), thoracic ones of which tending to be darkly pigmented.

MATERIAL STUDIED: 6+ postdefecating larvae: Brazil, São Paulo, Piracicaba. 13-VII- 2019. E.A.B. Almeida and D.A. Alves .