Leptagrion andromache Hagen
Creators: name: Muzón, Javier
name: Muñoz, Soledad Weigel
name: Campos, Raúl
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Coenagrionidae
Leptagrion
Leptagrion andromache

description: Leptagrion andromache Hagen in Selys
Description of last instar larva
Figures 1–10
Head. Almost two times as wide as long, brown, frontoclypeal area and labrum darkish. Antennae 7-segmented, the third antennomere the longest. Left mandible (Fig. 2) with two molars, five incisors, and two additional teeth, one next to incisor 5 (y sensu Watson 1956) and the other one on anterior margin below molars (k). Right mandible (Fig. 1) without molars, with five incisors and two additional teeth, a large one on posterior margin (y) and a small one on anterior margin below level of left molars (k); mandibular formula: L 1+2 3 4 5 y k a b, R 1+2 3 4 5 y k 0. Labium (Figs. 3-4) reaching first coxa, prementum almost as long as wide, with one long seta on each side (0.4 mm) and 3–5 spines at articulation with palp; anterior margin strongly convex and crenulated, with one spine on each concavity; lateral margins with 16–20 setae at widest portion. Labial palp (Fig. 3) with 7 (30%), 8 (40%), or 9 (30%) long setae (0.9 mm the longest); distal margin bilobate, both lobes acute and straight, the internal one 1.53 times longer than the external.
Thorax. Prothorax dorsally brown, dorsal 0.5 of sides darkish brown. Meso- and metathorax blackish with pale areas on metathoracic margins. Legs pale with following dark pattern: a basal dorsal spot on meso- and metacoxae, a basal and subapical band on all femora, and an apical band on all tibiae. Wing pads reaching S3.
Abdomen. Dorsally pale brown; S1–8 with paired lateral dark spots as follows: confluent at posterior 0.5 on S1; almost complete on S2; on the anterior 0.5 and decreasing posteriorly in intensity on S3–8. S10 apical 0.5 darkened. Male opercular apophyses acute (Fig. 8), as long as 1.3 times S10 length. Valves of ovipositor (Fig. 10) pale brown, not reaching apex of S10. Male cercus 0.55 ± 0.05 times as long as S10 length (Figs. 7–8), blackish; female cercus 0.45 ± 0.05 times as long as abdominal S10 length, blackish, apex pale (Figs. 9–10). Caudal lamellae nodate (type D sensu Corbet 1999), color pattern as in Figs. 5–6. Dorsal margin of lateral caudal lamella with 40–60 stiff setae, extending along 0.4 its length; ventral margin with 5–10 setae, extending along about 0.5 its length. Dorsal margin of medial caudal lamella with 4 stiff setae, extending along about 0.4 of its length; ventral margin with 17 setae, extending along about 0.5 of its length. Remainder of caudal lamellae margins with longer thin hairs.
Measurements (mm, n = 5). Total body length (without caudal lamella): 30.67 ± 0.94. Head: max. width: 4.25 ± 0.06, max. length: 2.2 ± 0.08. Antenna: total length: 2.3, the third antennomere the longest. Prementum: max. width: 2.7 ± 0.07, max. length: 2.66 ± 0.05. Movable hook: 1.04 ± 0.05. Femur: 1: 2.22 ± 0.04, 2: 2.74 ± 0.05, 3: 3.48 ± 0.08. Tibia: 1: 2.94 ± 0.05, 2: 3.28 ± 0.08, 3: 3.64 ± 0.05. Wing pads: internal: 4.26 ± 0.09, external: 4.36 ± 0.11. Abdomen max. length: 23.14 ± 1.25, S10 length: 0.78 ± 0.04. Caudal lamella: max. width: lateral: 1.5 ± 0.11, medial: 1.5 ± 0.29, max. length: lateral:4.27 ± 0.52, medial 3.42 ± 0.25. Cercus length: male: 0.43 ± 0.06, female: 0.35 ± 0.07. Ovipositor ventral length: 1.3–1.5. Male opercular apophyses ventral length: 0.86 ± 0.13.
description: Published as part of Muzón, Javier, Muñoz, Soledad Weigel & Campos, Raúl, 2009, Description of the bromeliad-dwelling final instar larva of Leptagrion andromache Hagen in Selys (Zygoptera: Coenagrionidae), pp. 65-68 in Zootaxa 2089 (1) on pages 65-67, DOI: 10.11646/zootaxa.2089.1.6, http://zenodo.org/record/5319508