Austrotinodes donagrazielae, Leandro Lourenço Dumas & Wagner Rafael M. de Souza, 2017

Leandro Lourenço Dumas & Wagner Rafael M. de Souza, 2017, On Brazilian Austrotinodes Schmid, 1955 (Insecta, Trichoptera, Ecnomidae): new species, new distributional records and an updated checklist, European Journal of Taxonomy 297, pp. 1-40 : 18-20

Austrotinodes donagrazielae sp. nov.

urn:lsid:zoobank.org:act:FA23A95D-2D10-40E4-BE23-1B694EBF901C

Figs 7 , 14

Diagnosis

Austrotinodes donagrazielae sp. nov. belongs to the taquaralis Group, as mentioned before. All species of this group has a row of three stout ventrolateral spines on dorsal branch of lateral process of the phallus; however, only A. donagrazielae sp. nov. has the last spine subapically positioned, while in the other three species it is apically positioned. Additionally, the invagination of the anterior margin of segment IX in the species described here is larger, U-shaped, while in the other species of the taquaralis Group it is shallower, V-shaped. The phallic guide is also more robust than in A. absaberi sp. nov., A. gusmaoi sp. nov. and A. taquaralis Thomson & Holzenthal, 2010 .

Etymology

The species is dedicated to the Brazilian botanist Graziela Maciel Barroso, who was born at Corumbá in Mato Grosso do Sul state in 1912 and died in 2003. Graziela Barroso was a leading authority on the flora of Brazil, and published a three-volume “Sistemática de Angiospermas do Brasil ”, which is an international reference on the subject. Dona Graziela, the cherished name by which she was known, is recognized as the First Lady of Brazilian Botany, being the first woman who graduated from a course of natural history in Brazil.

Material examined

Holotype BRAZIL: ♂, São Paulo, São José do Barreiro, Lajeado, Cachoeira do Príncipe , 22°42′48.9″ S, 44°37′26.3″ W, 1557 m, 17 Dec. 2010, L.L. Dumas leg. ( DZRJ).

Paratypes BRAZIL: 4 ♀♀, same data as holotype ( DZRJ) ; 1 ♂, São José do Barreiro, riacho de 1ª ordem , 22°43′49.6″ S, 44°37′07.9″ W, 1536 m, 17 Dec. 2010, L.L. Dumas and A.L.H. Oliveira leg. ( DZRJ).

Description

ADULT. Length of forewing 5.75–5.90 mm (n = 2). In alcohol, general color golden brown, with golden brown sclerites; antennae stramineous, dorsum of head golden brown, with pale yellow and dark brown setae; thorax golden brown dorsally, light yellow ventrally; legs yellow, legs segments with brown setae; wings pale brown, forewing with fine pale brown setae dorsally.

WINGS. Forewing with R1 forked apically, forks II–V present; hind wing with forks II, III and V, discoidal cell absent.

MALE GENITALIA. Segment IX deeply divided, sternum extremely elongate; in lateral view, narrow at base, enlarging apically, ventral margin slightly convex; in ventral view, about 1.5 times as long as wide, enlarging apically, apical margin slightly convex. Phallic guide darkly sclerotized, not highly elevated; in lateral view, strongly arched, base broad, apex subacute, reaching middle of inferior appendage. Inferior appendages fused mesally, attached apicomesally on sternum IX; in lateral view, stout, ovate, apex rounded; in ventral view, lateral lobes subquadrate, directed posterolaterally, posterior margin convex, not crenulated, with mesal emargination. Tergum X divided into pair of semimembranous ovate lobes, lobes bulbous, bearing slender dorsal setae; in lateral view, subrectangular, elongate. Preanal appendages long, surface setose, margin crenulated, almost parallel-sided, apex rounded. Intermediate appendages long, approximately ¾ length of preanal appendage; in lateral view, wider at base, tapering to apex, curved dorsad, with 3 spine-like setae apically and 1 seta mesoventrally. Phallus with sclerotized phallobase and membranous apical region; lateral process very elongate, bifid; dorsal branch long, wide, with row of 3 stout ventral spines subapically, ventral branch shorter, long, narrow, with 1 apical spine; without basomesal process.

Dsitribution

Brazil (SP).

Figures

Fig. 7. Austrotinodes donagrazielae sp. nov., male genitalia. A. Ventral view. B. Dorsal view. C. Left lateral view. D. Phallic apparatus, left lateral view. E. Phallic apparatus, dorsal view.

Fig. 14. Distribution map of the new species of Austrotinodes.