Austrotinodes vitalbrazili, 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 : 31-34

Austrotinodes vitalbrazili sp. nov.

urn:lsid:zoobank.org:act:5DA68075-1D46-458C-BFF2-16AF3993EF6A

Figs 13 , 14

Diagnosis

Austrotinodes vitalbrazili sp. nov. is closely related to A. paraguayensis Flint, 1983 , resembling that species in the shape of intermediate appendages, the elongate phallic guide and the phallic apparatus. Although there is a general similarity in the intermediate appendages, the apex, which is truncate in both species, bears a short process in A. paraguayensis , whereas in the new species the apex is acute, without a process. The phallus of both species has a bifid lateral process, with dorsal and ventral branches well developed, and bears a basomesal process. However, in A. vitalbrazili sp. nov. the elongate ventral branch has a pair of dorsal spines at midlength, absent in A. paraguayensis . Additionally, in the new species the anterior margin of inferior appendages is slightly concave in ventral view, while in A. paraguayensis it is strongly convex.

Etymology

The species is dedicated to the Brazilian biomedical scientist and immunologist Vital Brazil Mineiro da Campanha, who was born in Campanha in Minas Gerais state in 1865 and died in 1950. Vital Brazil was renowned for the discovery of the polyvalent anti-ophidic serum, used to treat bites of species belonging to several genera of venomous snakes. He also developed anti-scorpion and anti-spider serums, and was the founder of the “Butantan Institute,” which was the first in the world dedicated exclusively to basic and applied toxicology.

Material examined

Holotype BRAZIL: ♂, Minas Gerais, Jaboticatubas, PN da Serra do Cipó, Córrego das Pedras , 19°22′16.7″ S, 43°36′02.8″ W, 766 m, 9–13 Nov. 2011, A.P.M. Santos, D.M. Takiya and M. Monné leg. ( DZRJ).

Paratypes BRAZIL: Minas Gerais: 1 ♂, same locality as holotype, 2 Mar. 2006, A.L.H. Oliveira leg. ( DZRJ); 1 ♂, São Roque de Minas, PN da Serra da Canastra, Fazenda Velha, Córrego da Usina , 20°14′26.20″ S, 46°38′19.0″ W, 1000 m, 2 Apr. 2014, J.L. Nessimian, A.L.H. Oliveira, L.L. Dumas and S.P. Gomes leg. ( DZRJ); 1 ♂, São Roque de Minas, PN da Serra da Canastra, Fazenda Velha, afluente do Ribeirão das Posses (Córrego dos Pombos) , 20°14′56.60″ S, 46º38′04,90″ W, 997 m, 2 Apr. 2014, J.L. Nessimian, A.L.H. Oliveira, L.L. Dumas and S.P. Gomes leg. ( DZRJ); 1 ♂, São Roque de Minas, PN da Serra da Canastra, Cachoeira Capão Forro (confluência dos rios Peixe e Rolador) , 20°15′10.0″ S, 46°24′24.0″ W, 936 m, 31 Mar. 2014, J.L. Nessimian, A.L.H. Oliveira, L.L. Dumas and S.P. Gomes leg. ( DZRJ); 1 ♂, São Roque de Minas, PN da Serra da Canastra, parte alta da Cachoeira do Rolinho, Rib. da Mata , 20°10′29.9″ S, 46°33′36.1″ W, 1193 m, 16 Nov. 2014, J.L. Nessimian, A.L.H. Oliveira, I.C. Rocha and P.M. Souto leg. ( DZRJ); 1 ♂, São Roque de Minas, PN da Serra da Canastra , 31 Mar.–4 Apr. 2014, J.L. Nessimian, A.L.H. Oliveira, L.L. Dumas and S.P. Gomes leg. ( DZRJ).

Description

ADULT. Length of forewing 4.00– 4.75 mm (n = 6). 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, more than 2 times as long as wide, enlarging apically, apical margin slightly convex. Phallic guide darkly sclerotized, narrow, elongate, not elevated; in lateral view, straight, base acute, apex subacute, reaching tip of inferior appendage. Inferior appendages fused mesally, attached apicomesally on sternum IX; in lateral view, stout, quadrate, apex truncated; in ventral view, less wide than tergum IX, lateral lobes short, directed posterolaterally, posterior margin slightly convex, not crenulated, with shallow mesal emargination. Tergum X divided into pair of semimembranous ovate lobes, lobes bulbous, bearing slender dorsal setae along inner margin; in lateral view, ovate, elongate. Preanal appendages long, surface setose, margin crenulated, parallel-sided, apex rounded. Intermediate appendages long, approximately ¾ length of preanal appendage; in lateral view, parallel-sided, enlarging apically, with 1 middorsal, 2 subapical (1 dorsal and 1 lateroventral) and 1 apical spine-like setae, apex acute. Phallus with sclerotized phallobase and membranous apical region; lateral process very elongate, bifid; dorsal branch short, narrow, rod-like, with 1 long apical spine; ventral branch long, about 2 times longer than dorsal branch, wide, with 2 middorsal and 1 subapical spines, apex rounded; basomesal process elongate, narrow, darkly sclerotized.

Distribution

Brazil (MG).

Figures

Fig. 13. Austrotinodes vitalbrazili 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.