Agmina viklundi, 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 viklundi sp. nov. Figs 130-134

Diagnosis.

In ventral view A. viklundi sp. nov. is similar to A. complexa sp. nov. in the long, broad and slightly diverging sternal processes. In lateral view, A. viklundi sp. nov. is easily distinguished from A. complexa sp. nov. by the convex ventral margin of the sternal processes, which is straight in A. complexa sp. nov. Furthermore, in lateral view the superior appendages in A. viklundi sp. nov. are wide and rounded posteriorly, while in A. complexa sp. nov. these are strongly narrowing apically.

Etymology.

Viklundi, named for one of the collectors of the holotype, Mr. Bert Viklund.

Material examined.

Holotype: New Caledonia - Province Sud • ♂; Mt. Panié, Riv. Padyéém; 20°34.122'S, 164°48.147'E; 400 m; 22-28.xi.2001; Malaise trap; 22-28.xi.2001; loc#146 (16-2001); leg. KA Johanson, T Pape & B Viklund; MNHN.

Measurements.

Fore wing length 3.5 mm (N = 1). Total length of genitalia: 0.6 mm.

Description.

Genitalia: In lateral view, segment IX triangular anteriorly, apex located medially; in ventral view anteriorly U-shaped. Sternal processes, lateral view, with knife-shaped with anterior half slightly narrowing, posterior end slightly wider, apex rounded; in ventral view, robust, long, of equal width along their length, apex rounded, anterior half diverging, posterior half parallel. Tergum X mug-shaped, in lateral view longer than high; in dorsal view, mesally well-separated, much longer than wide, rounded apex. Parameres in lateral view long, slender, curving upwards, small dorsal lobe at mid-length, apex club-shaped with megasetae directed ventrad, then drawn out into long acuminate process orientated dorsad, barely reaching superior appendage; in dorsal view, separated, initially converging, second half diverging widely, apex club-shaped with megasetae directed mesad. Superior appendages, in lateral view, not exceeding the length of tergum X, irregularly quadrilateral with rounded apex, claw-like process mesally on posterior margin, directed anteromesad; in dorsal view short, stout, rectangular process with large megasetae orientated mesad at mid-length of inner margin, rounded apex with long, curving, spine-like process orientated mesad. Inferior appendages, in lateral view, forming a single rounded, club-shaped structure, gently curving upwards; in ventral view slender, with slightly undulating convex lateral margins, two slightly converging, posterior processes slightly narrowing along their length, with apex directed posterolaterad. Phallus, in lateral view much shorter than segment IX, tubular, straight; in ventral view slightly wider anteriorly, tubular.

Additional information.

This species was referred to as "sp. 38" in Espeland and Johanson (2010a).

Figures

Figures 130 - 134. Agmina viklundi sp. nov. male holotype 130 genitalia, left lateral view 131 genitalia, dorsal view 132 genitalia, ventral view 133 phallus, lateral view 134 phallus, ventral view.