ABSTRACT The egg and mature larva of a presently unnamed species of the bee genus Plebeia are anatomically described, illustrated, and compared with those of other known Meliponini, based on abundant specimens collected from two nests recovered from a tree at the Yasuní Scientific Station, Orellana Province, Ecuador. A key to the four tribes (Apini, Bombini, Euglossini, and Meliponini) of known mature corbiculate larvae is then presented. It, in turn, is followed by a preliminary larval description of the Meliponini based on those taxa the mature larvae of which are known so far. The main feature distinguishing the mature larva of the Meliponini is in its having a tapering slender elongate mandibular apex, which contrasts with the much shorter, robust mandibular apex of the other three tribes. Furthermore, unlike in the other tribes, late stage larval Meliponini possess paired dorsolateral tubercles on most abdominal segments.

中文翻译：

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Plebeia 种的卵和成熟幼虫，以及 Meliponini 成熟幼虫相对于其他球状分类群（Apoidea：Apidae）的初步概述

摘要 根据从位于奥雷利亚纳 Yasuní 科学站的一棵树上回收的两个巢中收集的大量标本，对目前未命名的蜜蜂属 Plebeia 的卵和成熟幼虫进行了解剖学描述、说明，并与其他已知 Meliponini 的卵和成熟幼虫进行了比较。省，厄瓜多尔。然后介绍了已知成熟球状幼虫的四个部落（Apini、Bombini、Euglossini 和 Meliponini）的钥匙。随后，根据目前已知成熟幼虫的分类群，对 Meliponini 的幼虫进行了初步描述。Meliponini 成熟幼虫的主要特征在于其具有逐渐变细的细长下颌尖，这与其他三个部落的短得多、坚固的下颌尖形成对比。此外，与其他部落不同的是，