Austrotinodes cruzi, 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 : 16

publication ID 10.5852/ejt.2017.297

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scientific name

Austrotinodes cruzi

sp. nov.

Austrotinodes cruzi sp. nov.

Figs 6 View Fig. 6 , 14 View Fig. 14


Austrotinodes cruzi sp. nov. can be distinguished from all other species of the genus by the unusual shape of the intermediate appendages, which are very elongate and boomerang-like, and by the phallus, which has a short lateral process, hood-like when viewed laterally.


The species is dedicated to the Brazilian physician, scientist, epidemiologist and bacteriologist Oswaldo Gonçalves Cruz, who was born at São Luiz do Paraitinga in São Paulo state in 1872 and died in 1917. Oswaldo Cruz was the mentor in an important sanitary campaign in Rio de Janeiro, which aimed at controlling the bubonic plague, yellow fever and smallpox. These diseases were raging all over the city, at the turn of the 20th century, decimating the population. He also was the founder of an important research institute, named after him.

Material examined


BRAZIL: ♂, Espírito Santo, Alegre, Celina, PE da Cachoeira da Fumaça, Córrego da Graminha , 20°37′55.0″ S, 41°36′26.3″ W, 477 m, 28 Mar. 2011, L.L. Dumas and G.A. Jardim leg. ( DZRJ).



ADULT. Length of forewing 4.75 mm (n = 1). In alcohol, general color golden brown, with golden brown sclerites; antennae light yellow, dorsum of head dark 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 elongate; in lateral view, narrow basally, enlarging apically, ventral margin slightly convex; in ventral view, about 1.5 times as long as wide, constricted medially, apical margin convex. Phallic guide darkly sclerotized, elevated over inferior appendages; in lateral view, strongly arched, base moderately broad, apex subacute, reaching middle of inferior appendage. Inferior appendages fused mesally, attached apicomesally on sternum IX; in lateral view, elongate, subtriangular, apex rounded; in ventral view, lateral lobes very elongate, directed posterolaterally, posterior margin concave, not crenulated, with mesal emargination. Tergum X divided into pair of semimembranous oval lobes, lobes bulbous, bearing slender setae along inner margin; in lateral view, subrectangular. Preanal appendages long, surface setose, margin crenulated, wider at base, tapering apically, apex rounded; in dorsal view, with a small invagination near apex at inner margin. Intermediate appendages very long, bifid; in lateral view, boomerang-like, ventral branch strongly curved apically, reaching middle of phallic guide, dorsal branch directed posterad, bearing 1 stout setae at apex and small dorsal pointed projection near base. Phallus with sclerotized phallobase and membranous apicoventral region; lateral process short, with moderately produced apical finger-like projection bearing apical spine; base with 2 spines ventrobasally (only 1 spine visible in lateral view); without basomesal process.


Brazil (ES).













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