Agmina cunicula, Espeland & Sjöberg & Johanson, 2020

Espeland, Marianne, Sjoeberg, Tin & Johanson, Kjell Arne, 2020, Description of 47 new species of the New Caledonian endemic caddisfly genus Agmina Ward & Schefter (Trichoptera, Ecnomidae), ZooKeys 956, pp. 49-162 : 49

Agmina cunicula sp. nov. Figs 74-78

Diagnosis.

Agmina cunicula sp. nov. is distinguished from other Agmina species in having genitalia that are relatively simple, particularly in lateral view where they are composed of two visible branches, the upper including a large tergum X and the superior appendage, and the lower including the very broad sternal process that hide the inferior appendages and slightly exceed the superior appendages posteriorly. It resembles A. digitata sp. nov. but in lateral view A. cunicula sp. nov. have superior appendages that are rounded posteriorly, while trapezoid in A. digitata sp. nov. The inferior appendages of A. cunicula sp. nov. are very short and deeply divided longitudinally, while those in A. digitata form a wide and long plate that is not divided.

Etymology.

Cunicula, from Latin, meaning lengthened. Named for the very long sternal processes.

Material examined.

Holotype: New Caledonia - Province Sud • ♂; Plateau de Dogny; 846 m; 18-21.xi.2001; Malaise trap; 21°37.000'S, 165°52.500'E; loc#145 (15-2001); leg. KA Johanson, T Pape & B Viklund; MNHN.

Paratype: New Caledonia - Province Sud • 1 ♂; Monts des Koghis, ca 300 m S Koghi Restaurant; 22.18288S, 166.50490E; 457 m; 6.xii.2001; light trap; loc#001c (07-2001); leg. KA Johanson, T Pape & B Viklund; NHRS.

Measurements.

Fore wing length 4.3-4.6 mm (N = 2). Total length of genitalia: 0.5 mm.

Description.

Genitalia: In lateral view, segment IX narrowly U-shaped anteriorly, apex located medially; in ventral view anteriorly U-shaped. Sternal processes, lateral view, with each apex exceeding apex of superior appendage, narrowing along its length, straight, apex rounded, ventral margin slightly sigmoid, dorsal margin straight; in ventral view, long, almost parallel, slightly diverging towards rounded apex, lateral margin straight, medial margin convex. Tergum X in lateral view jar-shaped, with dorsal and ventral margins gently convex posteriorly; longer than superior appendage; in dorsal view, mesally fused, with lateral margins straight, mesal margin convex, narrowing towards posterior; inner margins forming bell-shaped structure with distended oval base. Parameres starting before tergum X, in lateral view slender, slightly curving downwards and widening at truncate apex; in dorsal view, long, slender, first half converging, second half diverging, widening towards apex, apex truncated, almost triangular with mesal process shaped like double-spine orientated posteromesad. Superior appendages, in lateral view, oblong, with slightly straighter anterior margin, shorter than tergum X; in dorsal view stout, slightly converging towards apex, outer margin almost straight, inner margin slightly concave, apex with thick hook-shaped structure and small spine directed anteromesad. Inferior appendages, in lateral view, very short, rounded structure with acute apex, at apex large, hook-shaped structure almost as long as main appendage, parallel with ventral margin of sternal process, then sharply bending, with apex pointing posterad; in ventral view with two posteriorly orientated branches, remainder hardly visible under sternal process. Phallus, in lateral view slightly shorter than segment IX, slender, tubular, with broad spine-like lateral lobe at anterior end; in ventral view tubular with anterior end slightly widening, truncate, with small spine-like lateral processes directed anterad.

Additional information.

This species was referred to as "sp. 11" in Espeland and Johanson (2010a).

Figures

Figures 74 - 78. Agmina cunicula sp. nov. male holotype 74 genitalia, left lateral view 75 genitalia, dorsal view 76 genitalia, ventral view 77 phallus, lateral view 78 phallus, ventral view.