Cernotina anhanguera, Barcelos, Patrik, Camargos, Lucas Marques De, Pes, Ana Maria & Salles, Frederico Falcão, 2013

Barcelos, Patrik, Camargos, Lucas Marques De, Pes, Ana Maria & Salles, Frederico Falcão, 2013, Six new species of Cernotina Ross, 1938 (Trichoptera: Polycentropodidae) from Brazil, Zootaxa 3669 (2), pp. 115-128 : 117

Cernotina anhanguera sp. nov. Camargos, Barcelos-Silva & Pes

( Figs. 2 A–D).

Etymology. The masculine proper noun anhanguera refers to Bartolomeu Bueno da Silva, known as “ Anhangüera ” (“old devil” in the native tupi-guarani language), who was the colonizer of the Brazilian state of Goiás searching for precious metals. The specimens were collected in a stream within the area of a nickel mine of the Anglo American mining company.

Diagnosis. Cernotina anhanguera sp. nov. is similar to C. bispicata sp. nov., by the dorsolateral and ventromesal lobes of preanal appendages rod-like, with apical spines. These species can be distinguished from each other by the relative size of the ventromesal lobe of each preanal appendage, which is almost as long as the dorsolateral lobe in C. anhanguera sp. nov., and less than half as long in C. bispicata sp. nov. The subtruncate apices of the inferior appendages in C. anhanguera sp. nov., and strongly truncate apices in C. bispicata sp. nov. can also distinguish the two species.

Description. Male. Length of each forewing 3.5–3.9 mm (n = 3). General color in alcohol yellowish brown; antennae pale yellow, tibia and tarsus of each foreleg with short dark brown setae, mid- and hind legs with golden setae.

Male genitalia: Sternum IX trapezoidal, with anterior margin bearing deep U-shaped incision and posterior margin broadly excavated in ventral view ( Fig. 2 C). Tergum X membranous, posteriorly narrow with deep mesal notch apically in dorsal view ( Fig. 2 B). Preanal appendages each with two lobes, in lateral view dorsolateral lobe elongate, fusiform, with stout, black, apical spine; ventromesal lobe elongate, slightly shorter than dorsolateral lobe, with stout, black, apical spine ( Fig. 2 A). Inferior appendages, in lateral view, each slightly elongate with subtruncate apex, covered by fine setae; basodorsal lobe clavate, bearing some fine setae ( Fig. 2 A); apicomesal lobe with two narrow, strongly sclerotized plates, one slightly curved ventrad in lateral view, and other horizontal, flat, lightly sclerotized. Expanded phallus tubular, base broader than apex, with pair of long internal apical spines ( Fig. 2 D).

Female: Unknown.

Holotype male: BRAZIL: Goiás; Niquelândia; Pires stream, Anglo American/Codemin; 14°11’0.59”S, 48°21’4.40”W; 11–12.ix.2012; L.M. de Camargos, M.C. Almeida, and C.E.K. de Oliveira; Pennsylvania trap [alcohol] (INPA).

Paratypes: Same data as holotype, 1 male (INPA); same data as holotype, 1 male (MZSP).

Biology. The specimens were collected in a narrow stream in a pasture area with a few riparian trees. The stream has a muddy bottom with small rocks and leaves.

Figures

FIGURE 2. Cernotina anhanguera sp. nov. A) Male genitalia, left lateral; B) terga IX and X, and preanal appendages, dorsal; C) sternum IX and inferior appendages, ventral; D) phallus, left lateral.