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Article
Published: 2020-11-19

Final instar larva of Acanthagrion truncatum Selys, 1876 (Zygoptera: Coenagrionidae)

Rua Jaime Bilharinho, 575, CEP 38065-280, Uberaba, Minas Gerais, Brazil
Programa de Pós-Graduação em Entomologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
Departamento de Ecologia, Universidade Federal de Sergipe, São Cristóvão, Sergipe, Brazil
Larval description Odonata naiad nymph Neotropical

Abstract

Here we describe the final instar larvae of Acanthagrion truncatum Selys, 1876, the 16th described for the genus. We compare the diagnostic characters of A. truncatum with other species of the Group II. Although very similar to other Acanthagrion, the larvae of A. truncatum can be separated from other congeners from having the following character combination: cephalic lobes bulging and rounded, seven antennomeres, 2+1 or 2 premental setae, and nodus at 0.60–0.62 of total length of the lamella.

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