Austrotinodes taquaralis, Thomson, Robin E. & Holzenthal, Ralph W., 2010

Thomson, Robin E. & Holzenthal, Ralph W., 2010, New Neotropical species of the genus Austrotinodes Schmid (Trichoptera: Ecnomidae), Zootaxa 2437, pp. 38-50: 47-49

publication ID

http://doi.org/ 10.5281/zenodo.194845

persistent identifier

http://treatment.plazi.org/id/03AB8783-F146-FFE4-B7F5-FBF4FBDBFE18

treatment provided by

Plazi

scientific name

Austrotinodes taquaralis
status

new species

Austrotinodes taquaralis  , new species

Fig. 6View FIGURE 6

Diagnosis. This species is most similar to A. belchioris  , new species, and A. abrachium  , new species. In A. taquaralis  , the intermediate appendage is lacking the basoventral branch of A. belchioris  but has instead a single basoventral seta. While the dorsal branch of the intermediate appendage in A. belchioris  has 2 setae, there are 3–4 present in A. taquaralis  . Additionally, in A. taquaralis  , the membranous apical region of the phallus is shorter in proportion to the lateral process than in A. belchioris  or A. abrachium  .

Description. Male. Forewing length 4.9–5.3 mm (n= 6). Body sclerites brown, dorsum of head light brown with pale yellow and light brown setae; thorax light brown with pale yellow setae dorsally, light brown ventrally; leg segments with brown setae. Forewings covered with fine dark brown and pale yellow setae in a mottled pattern. Genitalia. Segment IX deeply divided, sternum elongated; in lateral view, enlarging apically, ventral margin slightly convex; in ventral view, apical margin convex. Phallic guide sclerotized, not highly elevated; in lateral view, base narrow, apex pointed, reaching tip of inferior appendage; in caudal view, with single indentation. Inferior appendages fused mesally, attached apicomesally on sternum IX; in lateral view, ovate; in ventral view, lateral lobes subquadrate, directed posterolaterally, posterior margin concave with central point. Tergum X divided into pair of semimembranous oval lobes, lobes bulbous, bearing dorsal setae. Preanal appendage long, surface setose, margin crenulated, parallel-sided, apex rounded. Intermediate appendage long, approximately 3 / 4 length of preanal appendage; in lateral view, curved; single; bearing 3–4 large spinelike setae apically and 1 seta basoventrally. Phallus with sclerotized phallobase and membranous apical region; lateral process elongate, bifid, dorsal branch long, wide, ventral branch short, narrow, dorsal branch with row of 2 subapical and 1 apical spines, ventral branch with 1 apical spine; without basomesal process.

Type material. Holotype: Male, Brazil: Rio de Janeiro: Parque Nacional Itatiaia, Rio Taquaral, 22 ˚ 27.252 ’S, 44 ˚ 36.570 ’W, 1300 m, 22–23.xi. 2001, Holzenthal and Blahnik ( UMSP 000081755) ( MZUSP). Paratypes: same as holotype, 2 females ( UMSP); Brazil: Minas Gerais: Aldeia da Cachoeira das Pedras, 20 ˚06.824’S, 44 ˚01.412’W, 925 m, 28–29.ix. 2000, Paprocki and Braga, 1 male, 3 females ( MZUSP); Parque Estadual Itacolomi, Rio Belchior, 20 ˚ 25.041 ’S, 43 ˚ 25.663 ’W, 725 m, 2.ii. 1998, Holzenthal and Paprocki, 2 males, 12 females ( UMSP); Estação Ecológica de Tripu, Córrego Botafoga, 20 ˚ 22.908 ’S, 43 ˚ 33.615 ’W, 1100 m, 1.ii. 1998, Holzenthal and Paprocki, 1 male ( UMSP); Cachoeira do Abacaxi, Vale de Tropeiro, Ouro Preto, 20 ˚ 12.270 ’S, 43 ˚ 38.163 ’W, 1120 m, 7.xi. 2001, Paprocki, Blahnik, and Amarante, 1 male ( NMNH).

Etymology. Named for Rio Taquaral, the river where the holotype was collected.

UMSP

University of Minnesota Insect Collection

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

NMNH

Smithsonian Institution, National Museum of Natural History