Helicopsyche (Feropsyche) catoles, Souza, Raquel Lima De, Gomes, Victor & Calor, Adolfo R., 2017

Souza, Raquel Lima De, Gomes, Victor & Calor, Adolfo R., 2017, A new species of snail-case caddisflies (Trichoptera: Helicopsychidae) and new records of caddisflies from Chapada Diamantina, Bahia, Brazil, Zootaxa 4227 (3), pp. 347-358 : 348-349

Helicopsyche (Feropsyche) catoles , new species

( Figs. 1 A–1F)

Diagnosis. Helicopsyche catoles n. sp. is easily distinguished from congeners by the following features: Inferior appendages clavate, each with a posteroventral projection, bearing 2-4 setae, and tergum X with a notched apex and with a pair of longitudinal rows of short setae best seen in dorsal view. The new species is most similar to H. succincta , particularly in the inferior appendages each widening in its distal half and with an undulate dorsal margin in this new species, and with H. angeloi Holzenthal, Blahnik & Calor 2016 in a distinct protuberance on the ventral margin at midlength of each inferior appendage of the new species.

Male. Length of each forewing 3.69–4.86 mm (n = 13) and of each hind wing 2.83–3.60 mm (n = 13).

Abdomen. Sternal process VI long, in lateral view tubular along its length, covered with tiny setae ( Fig. 1 F). Genitalia. Segment IX in lateral view with anteromesal margin well developed, anteroventral margin slightly concave, anterior lobe well developed and triangular, lateral apodeme developed ( Fig. 1 A); in dorsal view, with anterior margin hyperboloid ( Fig. 1 D); in ventral view, without posterior process, with anterior margin sinuous and posterior margin slightly concave ( Fig. 1 E). Tergum X, in lateral view with erect setae along dorsal margin, dorsal margin nearly straight, apex rounded ( Fig. 1 A); in dorsal view quadrangular, parallel-sided, with notched apex and with pair of longitudinal rows of short setae ( Fig. 1 D). Superior appendages, in lateral view originating dorsolaterally, rounded, with long setae ( Fig. 1 A). Inferior appendages, in lateral view clavate, widening distally, each with undulating ventral and apicodorsal margins with long setae; posteroventral corner with 2–4 setae, its apex tapering and curving mesad ( Fig. 1 A); in ventral view narrow and tapering from base to apex, with longitudinal, setose, dorsomesal carina on most of distal half ( Fig. 1 E); basomesal lobe well developed and ovate in lateral and ventral views ( Figs. 1 A, 1E). Phallus, in lateral view tubular, strongly downcurved; phallobase slender, slightly inflated at base, posterior region with dorsal margin membranous ( Fig. 1 B); in ventral view tubular, slightly narrower in middle ( Fig. 1 C).

Female and immatures. Unknown.

Holotype male: BRAZIL: Bahia, Chapada Diamantina, Abaíra, Catolés, Cachoeira Samambaia , 01.xi.2013, light, Calor A.R., Dias E., Campos R. (alcohol, MZUSP).

Paratypes: BRAZIL: Bahia, same data as holotype, 1 male (alcohol, MZUSP) ; same data, except UV light pan trap, 3 males (alcohol, UFBA) ; same data, except light, 4 males (alcohol, UFBA) ; same data, except Estrada para Inúbia (abaixo das pontes), 01.xi.2013, 1 male (alcohol, UFBA) ; same data, except Piatã, Fazenda Machado, Riacho do Machado , 30. vii. 2010, UV light pan trap, Calor A.R., Lecci L., Quinteiro F., França D., Arantes T. & Camelier P., 1 male (alcohol, UFBA) ; same data, except Estrada velha Ouro Verde, Rio Toboró , 28.vii.2010, UV light pan trap, Calor A.R., Quinteiro F., França D., Lecci L., Arantes T. & Camelier P., 1 male (alcohol, UFBA) .

Distribution. Brazil (Bahia).

Etymology. The specific name “ catoles ” is a reference to the collect site, with the name used as a noun in apposition.

Figures

FIGURE 1. Helicopsyche (Feropsyche) catoles n. sp., male. 1 A, genitalia, left lateral view; 1 B, phallus, left lateral view; 1 C, phallus, ventral view; 1 D, genitalia, dorsal view; 1 E, genitalia, ventral view; 1 F, sternum VI, left lateral view.