Atopsyche flavoantennata, Mey & Ospina-Torres, 2018

Mey, Wolfram & Ospina-Torres, Rodulfo, 2018, Contribution to the Trichoptera fauna of the river La Vieja, Bogotá, Colombia (Insecta: Trichoptera), Zootaxa 4504 (1), pp. 23-40 : 27-28

Atopsyche flavoantennata spec. nov.

( Figs 3 A–3E, 15B)

Holotype ♂ [pinned], Colombia, Bogotá, Chapinero, Quebrada La Vieja , 17.vi.2016, genitalia in glycerin vial, leg. P. Ramírez ( ICN).

Paratypes: same locality, 2♂, [1 pinned], 6.ii.2017, leg. W. Mey ( MfN); 4♂ [pinned], Cundinamarca, Fómeque, Finca LaLaja , 3200 m, 14.xi.2016, at light, leg. W. Mey ( MfN) .

Etymology. The specific epithet is an adjective derived from Latin flavus, “yellow,” and antennata, “with antenna,” and refers to the yellow antennae.

Description. Adult ( Fig. 15B ). Length of each forewing ♂: 10–10.5 mm and wingspan 20–24 mm; head and palpi dark brown, vestiture on frons black, mixed with grey, vertex with black hairs; scape yellow, with brown hairs, flagellum yellow, becoming darker towards tip; pronotum and metanotum pale brown, mesonotum brown with black hairs; 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; yellow spots on veins along wing margin, indistinct, subapical fascia of yellow hairs present; discoidal cell very long, forks 1 and 3 stalked, anal loop very long, with A1+2+3 very short before wing margin; basal loop area pale brown between two patches of black hairs. Hindwings membranous, without patches of specialized hairs. Male abdominal sternum V with long process on gland opening ( Fig. 3D ); sternum VI with long, ventral appendage bearing five strong spines on ventral side ( Fig. 3C ); sternum VII without process;

Male genitalia ( Figs 3 A–3B, 3E): Proctiger membranous, without bristles; segment IX nearly as long as inferior appendages, ventral side with Y-like suture and strongly sclerotized anterior and distal margins; parapods long, band-like, slightly curved ventrad and pointed apically, subapical, triangular processes absent; preanal appendage small, elliptical; filipods slender and straight, surpassing apices of parapods; inferior appendages each with base of gonopod quadrangular, ventral apex produced distally into triangular tip, gonopods in ventral view with convex lateral sides and straight inner sides; harpago (= second segment) shorter than gonopod, flat and leaflike in ventral view, straight; phallotheca of phallic apparatus broadly rounded anteriorly and divided posteriorly into long, paired lateral processes with acute tips; ventral process of phallotheca articulating with bases of gonopods slender and straight; base of aedeagus with small sclerite surrounding aedegal tube; aedeagus elongate, sinus-like spine, extending beyond apices of lateral processes of phallotheca ( Fig. 3E ).

Diagnosis. The new species is similar to A. yupangi Schmid 1989 from Venuzuela and to the preceding species based on the rectangular gonopods and band-like parapods. It may be distinguished from these and other congeners by the elongated ventral apices of the gonopods and the peculiar shape of the harpago. In addition, the yellow antennae distinguish the new species from most syntopic congeners.

Figures

FIGURES 15A–15F. Trichoptera spp., photos of adults, dorsal view. 15A, Atopsyche viejae spec. nov., male paratype; 15B, Atopsyche flavoantennata spec. nov., female paratype; 15C, Smicridea colombosaucia spec. nov., male paratype; 15D, Polycentropus joergenseni Ulmer 1909, male; 15E, Phylloicus monserratensis spec. nov., male paratype; 15F, Marilia bogotaensis spec. nov., male paratype.

FIGURES 2–3. Atopsyche spp., male genitalia. 2A–2D, A. viejae spec. nov., scale = 0.5 mm: 2A, left lateral; 2B, ventral; 2C, dorsal; 2D, sternum V, left lateral, 2E, phallic apparatus, lateral. 3A–3D, A. flavoantennata spec. nov., scale = 0.5 mm: 3A,.left lateral; 3B, ventral; 3C, sternal process, left lateral; 3D, sternum V, left lateral; 3E, phallic apparatus, lateral.