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Issue: Vol. 5637 No. 2: 21 May 2025
Type: Article
Published: 2025-05-21
DOI: 10.11646/zootaxa.5637.2.10
Page range: 374-382
Abstract views: 36
PDF downloaded: 2

Description of the last instar larva of Acanthallagma caeruleum Williamson & Williamson, 1924 (Odonata: Coenagrionidae)

Instituto de Biodiversidad Neotropical; CONICET-Universidad Nacional de Tucumán; Facultad de Ciencias Naturales e IML; San Miguel de Tucumán; Argentina
Grupo de Entomología Universidad de Antioquia (GEUA); Universidad de Antioquia; Medellín; Antioquia; COLOMBIA
Instituto de Biodiversidad Neotropical; CONICET-Universidad Nacional de Tucumán; Facultad de Ciencias Naturales e IML; San Miguel de Tucumán; Argentina
Odonata Neotropic Zygoptera Ischnurinae larval description damselfly

Abstract

The last larval instar of Acanthallagma caeruleum Williamson & Williamson, 1924 is described and illustrated for the first time based on a reared female collected in the Colombian Amazon region (Caquetá department). This is the first larva known for this genus. The general aspect of the larva resembles that of some Oxyagrion Selys, 1876 and Acanthagrion Selys, 1876 species and presents the following unique combination of features: 1 pair of premental setae, stout spines mounted on elevated sockets in body and legs, caudal lamellae lanceolate and 0.86–0.90 the length of abdomen, with marked nodus and sulcus.

 

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How to Cite

Alvarez-Alvarez, K.L., Bota-Sierra, C.A. & Molineri, C. (2025) Description of the last instar larva of Acanthallagma caeruleum Williamson & Williamson, 1924 (Odonata: Coenagrionidae). Zootaxa, 5637 (2), 374–382. https://doi.org/10.11646/zootaxa.5637.2.10