Nectopsyche aymore, Neto & Salles, 2023

Neto, Pedro Bonfá & Salles, Frederico Falcão, 2023, A new species of Nectopsyche Müller, 1879 (Trichoptera: Leptoceridae) and notes on the adults of Nectopsyche splendida (Navás, 1917), Revista Brasileira de Entomologia (e 20220103) 67 (1), pp. 1-8 : 2-5

publication ID	https://doi.org/ 10.1590/1806-9665-RBENT-2022-0103
DOI	https://doi.org/10.5281/zenodo.10869547
persistent identifier	https://treatment.plazi.org/id/03E387EF-FFF7-E34F-FFB9-0E803BDB7CE1
treatment provided by	Felipe
scientific name	Nectopsyche aymore
status	sp. nov.

Treatment

Nectopsyche aymore , new species

urn:lsid:zoobank.org:act:DDF40146-406E-4FD5-9A1F-2D2D309CA4F0 ( Fig. 1 View Figure 1 A-F, 2A-C & 3A-C)

Diagnosis. This new species has male genitalia similar to the species of the candida-group ( Flint, 1968) based on the following characteristics: simple, elongated preanal appendages ( Fig. 1B, C View Figure 1 ); slender, straight inferior appendages ( Fig. 1A, B View Figure 1 ); basoventral process of the inferior appendages digitate ( Fig. 1A, B View Figure 1 ). On the other hand, this species has several endothecal spines in the phallic apparatus ( Fig. 1 View Figure 1 D-F), as in species included in the gemma-group. The color pattern of the scales and hairs on the head, thorax, and forewings ( Fig.2A View Figure 2 ) is similar to those of N. splendida , as both species have bands of metallic silver-iridescent scales interleaved with black hairs or scales on the forewings. In the new species, however, the black coloration is formed only by dark hairs between the bands of scales, and the scales in the bands as well as the bands themselves are not as densely distributed or defined as they are in N. splendida (compare Figs. 2A and D View Figure 2 ). Furthermore, the forewing of N. splendida has a patch of golden scales over the stigma ( Fig. 2D View Figure 2 ), which is absent in the new species. In addition, the new species differs from N.splendida by having wider abdominal segment IX in lateral view ( Fig. 1B View Figure 1 ); narrower and smaller ovoid tergum IX acrotergites ( Fig.1B, C View Figure 1 ); smaller, more robust preanal appendage ( Fig. 1B, C View Figure 1 ); segment X lateral process thin with acute apex ( Fig.1B View Figure 1 ); inferior appendage with apicomesal lobe with small spines at the apex ( Fig. 1A View Figure 1 ); periphalic process without an enlarged apex ( Fig. 1 View Figure 1 D-F); phallobase strongly curved and flexible ( Fig. 1 View Figure 1 D-F); and endothecal membranes with small spines ( Fig. 1 View Figure 1 D-F).

Description. Adult male.Length of forewing 6.3 – 6.7 mm, (6.5 mm, n = 10). Head dark brown ( Fig. 2B, C View Figure 2 ), with metallic silver-iridescent scales on dorsum; antennae brown to dark, scape dark brown ( Fig.2B, C View Figure 2 ); labial and maxillary palps dark brown; eyes small, width approximately 0.4 times interocular distance ( Fig. 2B View Figure 2 ). Thorax black to dark brown ( Fig. 2B, C View Figure 2 ) covered with metallic silver-iridescent scales, mesothorax with 4, 5 or 6 pairs of setal warts, metathorax with 1 pair of setal warts ( Fig. 2B View Figure 2 ); legs brown to light brown; forewings dark brown with 3 vertical irregular bands of metallic silver-iridescent scales interleaved with dark hairs, and 1 horizontal band of metallic silver-iridescent scales in the anal region extending to apical region ( Fig. 2A View Figure 2 ). Male genitalia. Abdominal segment IX, in lateral view, trapezoidal ( Fig. 1B View Figure 1 ); tergum sub-rectangular with a pair of mid-dorsal protuberance, with pair of small oval acrotergites ( Fig. 1C View Figure 1 ); sternum IX absent. Preanal appendage approximately same length as segment IX, narrow, setose, rounded apically ( Fig. 1B, C View Figure 1 ). Segment X lateral process approximately 0.5x the length of preanal appendage, thin, very narrow, apex acute with 2 apical setae ( Fig. 1B View Figure 1 ). Inferior appendage slender straight with apex acute in lateral view ( Fig. 1B View Figure 1 ), with long setae; apicomesal lobe rounded apically, with few setae and many small spines at apex ( Fig. 1A View Figure 1 ); basoventral process long, approximately 0.3x length of inferior appendage, narrow, with several long setae ( Fig. 1A, B View Figure 1 ). Phallic apparatus with periphallic processes thin, long, slightly curved s-shaped, apex acute, smooth ( Fig. 1 View Figure 1 D-F); phallic apodeme enlarged, bulbous, semi-membranous ( Fig.1 View Figure 1 D-F); phallobase sclerotized and flexible, in relaxed state (clarified with KOH 10% method) the basal median ventral area is strongly curved into a closed c-shape ( Fig. 1D View Figure 1 ), in semi-everted state (minutes after clarification with lactic acid 85% method) phallobase protruding from inside the phallic apparatus ( Fig. 1E View Figure 1 ), in full-everted (immediately after classification by the lactic acid 85% method) its median basal area is flexed and slightly curved ( Fig. 1F View Figure 1 ); endothecal membranes highly eversible with many small spines ( Fig. 1 View Figure 1 D-F); phallotremal sclerite small, U-shaped in dorsal view.

Adult Female. Length of forewing 4.4 – 4.8 mm, (4.5 mm, n = 10). Color as in male. Female genitalia. Abdominal segment IX trapezoidal ( Fig. 3A, C View Figure 3 ); tergum with pair of small oval acrotergites ( Fig. 3A, C View Figure 3 ); sternum IX absent.Appendages of segment X short, subtriangular, setose ( Fig. 3 View Figure 3 A-C); digitate process setose, short, with at right angles present midlaterally, below appendages of X ( Fig. 3B, C View Figure 3 ); valves short, narrow, setose ( Fig. 3C View Figure 3 ). Vaginal apparatus (spermathecal sclerite complex) with narrow and slightly arcuate posterior vertical sclerite connected to sclerite on the side extremities ( Fig. 3B View Figure 3 ); mid-ventral longitudinal sclerite with narrow elliptical shape connected to U-shaped dorsal sclerite ( Fig. 3B View Figure 3 ); vaginal apparatus connected to terminal membranes by narrow, partially sclerotized neck ( Fig. 3B, C View Figure 3 ).

Holotype. Male. BRAZIL: Espírito Santo: São Mateus, Santa Maria, Sítio Santa Maria , Rio São Mateus , S 18°39’17.1” W 39°59’36”, 17 m, 07- 08.ix.2012, CEUNES col. ( UFVB) ( UFVBTR00072 ) [illustrated] GoogleMaps . Paratypes: Same data as holotype, 1 male, 3 females ( UFVB) ( UFVBTR00073 ) GoogleMaps ; same, except 13-14.vi.2012, 11 males, 9 females ( UFVB) ( UFVBTR00074 ) ; same, except 13-14.vi.2012, 11 males, 8 females ( MNRJ) .

Additional material examined. BRAZIL: Espírito Santo: Nova Venécia, Santa Rita do Pip Nuck, Rio Cricaré , S 18°39’51.4” W 40°30’44.9”, 74 m, 18-19.iv.2012, CEUNES col., 1 female ( UFVB) ( UFVBTR00075 ) GoogleMaps ; Colatina , Rio Doce , S 19°32’14.0” W 40°38’23.5”, 75 m, 05-06.i.2022, Viana, Bonfá, Rodrigues & Rothe-Neves col., 2 males, 4 females ( UFVB) ( UFVBTR00076 ) GoogleMaps ; Linhares, Lagoa Nova , S 19°19’49.0” W 40°10’12.3”, 16 m, 12-13.ix.2022, Viana, Bonfá & Ataide col., 43 females ( UFVB) ( UFVBTR00077 ) GoogleMaps ; Linhares, Rio Doce , S 19°26’06.4” W 39°57’04.8”, 20 m, 13-14.ix.2022, Viana, Bonfá & Ataide col., 6 males, 9 females ( UFVB) ( UFVBTR00078 ) GoogleMaps .

Etymology. The specific epithet is a name of Tupi origin given to the indigenous people who inhabited the south of Bahia state, north of Espírito Santo state and also in Minas Gerais state. They are also known as Botocudos and Krenak.