Notalina (Neonotalina) diamantina, Henriques-Oliveira & Alves & Moreira, 2025

Henriques-Oliveira, Ana L., Alves, André A. & Moreira, Felipe F. F., 2025, New species of Notalina Mosely, 1939 (Trichoptera: Leptoceridae) from Chapada Diamantina National Park, Northeast Brazil, with new records of other leptocerids from the Caatinga biome, European Journal of Taxonomy 1004 (1), pp. 1-18 : 5-10

publication ID

https://doi.org/10.5852/ejt.2025.1004.2957

publication LSID

lsid:zoobank.org:pub:398EFB77-4619-4AEE-B9BA-65282C2C9F13

persistent identifier

https://treatment.plazi.org/id/0392967C-FFE7-0D2C-FDA0-FD4D9AB3FDA0

treatment provided by

Plazi

scientific name

Notalina (Neonotalina) diamantina
status

sp. nov.

Notalina (Neonotalina) diamantina sp. nov.

urn:lsid:zoobank.org:act:23271900-3C70-46AE-981D-0FD18FDF6087

Figs 2–6 View Fig View Fig View Fig View Fig View Fig

Diagnosis

This new species can be identified by the following characteristics: segment X with a very long dorsomesal process, with a rounded apex and a tuft of very long setae, in lateral view, facing upwards at an angle>45°; the apicolateral processes short, truncate, and equipped with stout setae; and the mesodorsal process of the inferior appendages digitate, long, and flat (like a blade), bearing a single seta on the apical third.

The new species is assigned to the N. brasiliana species group as defined by Holzenthal (1986) based on the presence of acuminated flanges on the phallobase and the well-developed phallotremal sclerite. Notalina (Neonotalina) diamantina sp. nov. resembles N. brasiliana , N. froehlichi , and N. goianensis , due to the presence of long, setose apicodorsal processes of segment X. However, it differs from its relatives in the appearance of segment X in the dorsal view: in the new species, the apicodorsal processes are well developed, rounded, and enlarged apically with long setae. Furthermore, they are very long and well upturned dorsally with an inclination angle of almost 90°. In contrast, N. brasiliana and N. goianensis have apicomesal processes that are long, thin, and have an inclination angle of 45° or less. Although N. froehlichi , in lateral view, shows apicomesal processes with the same angle of inclination as the new species, the apicolateral processes are digitate and rounded, while in N. diamantina , they are short and truncate. Another difference is that segment X in N. froehlichi is elevated in the middle length in lateral view, whereas in the new species, it is only slightly elevated near the base. The mesoventral process of the inferior appendages in the new species is subtriangular, similar to N. brasiliana and N. goianensis , while in N. froehlichi , it is long and slender with a narrower apex.

Etymology

Species named in reference of the type locality Chapada Diamantina National Park (or Parque Nacional da Chapada Diamantina – PNCD, in Portuguese), where the individuals of the new species were collected. It is a noun in apposition.

Type material

Holotype

BRAZIL – Bahia • ♂; Palmeiras, Parque Nacional da Chapada Diamantina , near to Cachoeira Conceição dos Gatos; 12°32′19″ S, 41°30′47.8″ W; alt. 775 m; 12 May 2021; A.A. Alves leg.; white sheet; [alcohol]; DZRJ TRICHOPTERA 9720.

Paratypes

BRAZIL – Bahia • 3 ♂♂; same data as for holotype; DZRJ TRICHOPTERA 9721 • 2 ♂♂, 1 ♀; same data as for holotype; [alcohol]; MNRJ-ENT10–268 • 1 ♂; same data as for holotype; [pinned]; MNRJ-ENT10–269 • 1 ♂; Mucugê, Parque Nacional da Chapada Diamantina, Comunidade do Baixão, Rio Uma; 12°17′36.2″ S, 41°14′28.2″ W; alt. 741 m; 23 Jul. 2018; J.S. Prando leg.; sweep; [alcohol]; DZRJ TRICHOPTERA 9722 • 1 ♂, 2 ♀♀; Mucugê, Chapada Diamantina , Rio Cumbucas, Mar de Espanha; 12°56′52.8″ S, 41°21′31.1″ W; alt. 858 m; 11 Mar. 2012; D.M. Takiya and A.P.M. Santos leg.; [alcohol]; DZRJ TRICHOPTERA 9723 • 1 ♂; same data as for preceding; [pinned]; DZRJ TRICHOPTERA 9725 • 1 ♂; same data as for preceding; DZRJ TRICHOPTERA 9726 • 1 ♀; same data as for preceding; DZRJ TRICHOPTERA 9727.

Description

Adult male ( Figs 2–4 View Fig View Fig View Fig )

COLOUR (pinned). Body and wings golden brown with off-white spots ( Fig. 2 View Fig ). Legs, palps, and antennae golden brown ( Fig. 2 View Fig ). Tibial spur formula 2, 2, 4. Forewing with forks I and V present ( Fig. 3A View Fig ); hindwing with forks I, III, and V present ( Fig. 3B View Fig ). Length of forewing = 8.0– 9.5 mm. Length of hindwing =

6.0–7.0 mm (n = 11).

MALE GENITALIA ( Fig. 4 View Fig ). Abdominal segment IX annular, in lateral view, broadest ventrolaterally, with setae on posterolateral edge, anterior margin slightly produced on median third ( Fig. 4A View Fig ). Preanal appendages digitate, slightly truncate, with long setae at apex, approximately ½ the length of segment X ( Fig. 4B View Fig ). Segment X, in lateral view, is slightly elevated at the base with a concave mesally, bearing two apical processes: a very long, digitate dorsomesal process with a rounded apex and a tuft of very long setae, facing upward dorsally (with an angle>45°, sometimes almost 90°); and a short, truncate apicolateral process with small stout setae at the apex ( Fig. 4A View Fig ). In dorsal view, segment X is broad at the base, with the posterior margin bearing two processes: a pointed lateral process with stout setae and a median process that is digitate and enlarged at the apex, very upturned, bearing a tuft of very long setae ( Fig. 4B View Fig ). The inferior appendage, in ventral view, is broad at the base with an elongate, digitate, and setose apical portion; the basoventral protuberance is short, rounded, and very setose when viewed laterally, and enlarged ventrally ( Fig. 4C View Fig ). The mesoventral process is elongate, with approximately half the length of the apical portion, rounded at the apex ( Fig. 4C View Fig ). In lateral view, it is subtriangular with a median carina, setose on the posterior margin, and has an acuminate apex. The mesodorsal process is long and digitate, flat (like a blade), bearing a long seta on the apical third, postero-dorsally directed with an acute apex when viewed laterally ( Fig. 4A View Fig ). The basodorsal process, in ventral view, is rounded and slightly higher than the basoventral protuberance ( Fig. 4C View Fig ). The phallic apparatus features a well-developed phallobase with a pair of laterally directed acuminate flanges ( Fig. 4D–E View Fig ); the phallotremal sclerite is well developed, roughly U-shaped in ventral view ( Fig. 4D View Fig ), and oval and downcurved in lateral view ( Fig. 4E View Fig ).

Adult female ( Figs 5–6 View Fig View Fig )

COLOUR. Body golden brown (in alcohol), with some whitish setae on wings ( Fig. 5 View Fig ): Tibial spur formula 2, 2, 4. Forewing with forks I and V present; hindwing with forks I, III, and V present ( Fig. 5 View Fig ). Length of forewing = 7.0 mm. Length of hindwing = 5.5 mm (n = 4).

FEMALE GENITALIA ( Fig. 6 View Fig ). Abdominal segment VIII, in ventral view, has a narrow sclerotized and setose plate, concave medially, presenting a rounded and rugose plate above ( Fig. 6A–B View Fig ). Segment IX sclerotized, annular, in dorsal view, almost straight, in lateral view, mesal portion produced and very setose ( Fig. 6A View Fig ), in ventral view, subquadrate, smooth, and slightly concave medially ( Fig. 6B View Fig ). Segment X forms a dorsal shelf, with a posterior margin slightly curved and bearing some stout setae, in lateral view, the posterior margin truncates ( Fig. 6A–B View Fig ). Preanal appendages short and subtruncate in dorsal view, oval and rounded with apex bearing long setae in lateral view ( Fig. 6 View Fig ). Lamellae broad, in lateral view subquadrate, setose, with a posterior margin slightly concave ( Fig. 6A View Fig ). Gonopod plate broad, subtriangular, and sclerotized. Apicomesal process of gonopod plate rounded with small setae ( Fig. 6B View Fig ); Spermathecal sclerite in amphora-shape with central elongate, keyhole-shaped sclerites ( Fig. 6B View Fig ).

Immature stages

Unknown.

Distribution ( Fig. 1 View Fig )

Brazil (Bahia state).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Trichoptera

Family

Leptoceridae

Genus

Notalina

Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF