Austrotinodes costalimai, 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 : 13-15

Austrotinodes costalimai sp. nov.

urn:lsid:zoobank.org:act:B9E2F5A8-6411-4C93-847C-8EF4B6D50BA3

Figs 5 , 14

Diagnosis

Austrotinodes costalimai sp. nov. resembles A. lattesi sp. nov. and A. bracteatus in the general shape of its phallic apparatus, which are short and elongate ovate. In the new species, the lateral process of the phallus has 2 extremely long spines near its apex, whereas in the other species none of the spines are so elongate. Additionally, the intermediate appendages of A costalimai sp. nov. and A. lattesi sp. nov. are curved and rod-like, whereas in A. bracteatus they are club-like and not curved. In A. costalimai sp. nov. the intermediate appendages are abruptly curved dorsad near its apex, forming almost a right angle, and bear 2 ventral spine-like setae at its apical third; in A. lattesi sp. nov. they are gently curved dorsad, forming an obtuse angle, and bear 1 mesolateral seta.

Etymology

The species is dedicated to one of the foremost Brazilian entomologists, Angelo Moreira da Costa Lima, who was born at Rio de Janeiro in Rio de Janeiro state in 1887 and died in 1964. Costa Lima made many contributions to studies of insects, being considered the father of Brazilian entomology. Among his most important works are the “Terceiro Catálogo”, which was one of the most consulted works on plant-insect associations, and the book “Insetos do Brasil ”, published in eleven volumes and regularly consulted until today.

Material examined

Holotype

BRAZIL: ♂, São Paulo, Iporanga, PE Intervales, Córrego do Mirante , 24°16′46.4″ S, 48°24′45.7″ W, 803 m, 8 Oct. 2011, L.L. Dumas and J.L. Nessimian leg. ( DZRJ).

Paratypes

BRAZIL: 2 ♀♀, same data as holotype ( DZRJ); 1 ♂, Iporanga, estrada Apiaí-Iporanga, confluência do Rio Sem Fim com Rio Betari , 24°34′06.6″ S, 48°39′36.6″ W, 245 m, 10 Oct. 2011, G.A. Jardim and J.L. Nessimian leg. ( DZRJ).

Description

ADULT. Length of forewing 4.25–5.50 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. Wing venation typical for genus; 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, sternum enlarged at apex, ventral margin curved basally forming an obtuse angle; in ventral view, about as long as wide, constricted basally, apical margin slightly convex. Phallic guide darkly sclerotized, elevated over inferior appendages; in lateral view, strongly arched, base broad, apex subacute, reaching base of inferior appendage. Inferior appendages fused mesally, attached apicomesally on sternum IX; in lateral view, elongate, subtriangular; in ventral view, lateral lobes elongate, directed posterolaterally, posterior margin slightly concave, crenulated. Tergum X divided into pair of semimembranous quadrate lobes, lobes bulbous, bearing slender dorsal setae; in lateral view, subrectangular. Preanal appendages long, large, surface setose, margin slightly crenulated, parallel-sided, apex rounded. Intermediate appendages long, approximately ¾ length of preanal appendage; in lateral view, cylindrical, margins parallel-sided, strongly curved dorsad near apex, with 2 ventral spine-like setae at apical third (setae opposite-sided, one 4 times longer than other), 1 short preapical spine-like seta, and 1 apical long spine-like seta. Phallus with sclerotized phallobase and membranous apicalventral region; lateral process short, elongate oval, widest mesally, with 1 long, stout, midlateral spine and a row of 3 slender apical spines, the more apical one very short compared to subapical ones; lateral process, in dorsal view, U-shaped; without basomesal process.

Distribution

Brazil (SP).

Figures

Fig. 5. Austrotinodes costalimai 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.