Atopsyche viejae Mey & Ospina-Torres 2018, spec. nov.
Creators: name: Mey, Wolfram
name: Ospina-Torres, Rodulfo
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydrobiosidae
Atopsyche
Atopsyche viejae

description: Atopsyche viejae spec. nov.
(Figs 2 A–2E, 15A)
Holotype ♂ [pinned], Colombia, Bogotá, Chapinero, Quebrada La Vieja, lower course 10.x.2016, genitalia in glycerin vial, leg. P. Ramírez (ICN).
Paratypes: same locality, 2♂, 5♀ [pinned], 17.vi.2016, 29.vii.2016, 10.x.2016, 21.xii.2016, all leg. P. Ramírez (ICN); 1♂, 2♀, 15.xi.2016, leg. W. Mey (MfN); 5♂, 1♀, 6.ii.2017, leg. W. Mey (MfN).
Etymology. The specific epithet refers to the river, La Vieja, where the species was collected for the first time.
Description. Adult (Fig. 15A). Length of each forewing ♂: 8–9.5 mm and wingspan 18–19 mm, ♀: 13–14 mm, wingspan 25–27 mm; head and labial palpi dark brown, vestiture on frons grey, vertex with black hairs; scape dark brown, flagellum yellow-brown, with indistinct annulations; legs pale brown, middle and hind tibiae and tarsi each with double row of spines, spurs 2.4.4. Forewings brown, with black and grey stiff hairs on veins; each with anal field darkened by black hairs on membrane; discoidal cell very long, fork1 and 3 stalked, anal loop very long, with A1+2+3 very short before wing margin. Hindwings membranous, without patches of specialized hairs.
Male abdominal sternum V with short process supporting gland opening (Fig. 2D); sternum VI with long, ventral appendage bearing singular and double spines on ventral side; sternum VII with short, ventral process (in lateral view, Fig. 2A); female sternum with long ventral process (Fig. 3D).
Male genitalia (Figs 2 A–2C, 2E): Proctiger membranous, without bristles, in lateral view wider apically, with apicoventral margin rounded; segment IX in lateral view nearly as long as inferior appendages, posterior margin convex, ventral side with Y-like suture and strongly sclerotized concave anterior margin; parapods in lateral view long, band-like, slightly curved ventrad and rounded apically, tips in dorsal view with subapical, external, triangular process; preanal appendages in lateral view small, ball-like; filipods in lateral view slender, tubular, curved, surpassing apices of parapods; inferior appendages each with gonopod (= basal segment) quadrangular in lateral view, boomerang-like in ventral view, with internal margin deeply concave at mid-length; harpago (= second segment) shorter than gonopod, flat and leaf-like, in ventral view with short acute tips on median side; phallotheca of phallic apparatus rounded anteriorly and divided posteriorly into long, paired lateral processes with acute tips; ventral process of phallotheca slender and articulating with bases of gonopods; base of aedeagus with small sclerite surrounding aedeagal tube; aedeagus an elongate, sinus-like spine, shorter than lateral processes of phallotheca (Fig. 2E).
Female genitalia: Segment VIII divided into separate tergum and sternum, segment IX slightly longer than preceding segment, rounded apically.
Diagnosis. According to the male genitalia, the new species is similar to A. chirimachaya Harper & Turcotte 1985 and A. youngi Sykora 1991 from Ecuador based on the rectangular gonopods and band-like parapods with lateral, subapical projections. It may be distinguished from these and other congeners (cf. Flint 1963) by the excised median sides of the gonopods in ventral view and the peculiar shape of the harpagones.
description: Published as part of Mey, Wolfram & Ospina-Torres, Rodulfo, 2018, Contribution to the Trichoptera fauna of the river La Vieja, Bogotá, Colombia (Insecta: Trichoptera), pp. 23-40 in Zootaxa 4504 (1) on pages 24-27, DOI: 10.11646/zootaxa.4504.1.2, http://zenodo.org/record/2606146