Research Article |
Corresponding author: Adolfo Calor ( acalor@gmail.com ) Academic editor: Steffen Pauls
© 2022 Erica Silva Pereira, Ian Oliveira, Gleison Robson Desidério, Adolfo Calor, Neusa Hamada.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Silva Pereira E, Oliveira I, Desidério GR, Calor A, Hamada N (2022) Notalina (Neonotalina) ralphi sp. nov. (Trichoptera, Leptoceridae), a new long-horned caddisfly from the Cerrado biome of Brazil, with new records for N. (Neonotalina) brasiliana Holzenthal, 1986 and an identification key. In: Pauls SU, Thomson R, Rázuri-Gonzales E (Eds) Special Issue in Honor of Ralph W. Holzenthal for a Lifelong Contribution to Trichoptera Systematics. ZooKeys 1111: 413-424. https://doi.org/10.3897/zookeys.1111.77581
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The long-horned caddisfly genus Notalina Mosely, 1936 contains 27 species divided into two subgenera. The Neotropical N. (Neonotalina) Holzenthal, 1986 occurs exclusively in South America. Its species are organized into two species groups, brasiliana and roraima. Nine species have been recorded so far in Brazil, mainly distributed in the Cerrado and Atlantic Forest biomes of Southeast Region, and only one species has been recorded from the Central-West and Northeast Regions. In this paper a new species of N. (Neonotalina) is described and illustrated based on adult males from two protected and preserved areas in the Cerrado biome of Brazil. Notalina (Neonotalina) ralphi sp. nov. belongs to the brasiliana species group and can be recognized mainly by the morphology of the preanal appendages and segment X. New distributional records are provided for N. (Neonotalina) brasiliana Holzenthal, 1986. Additionally, a key to identify males of the ten species in the brasiliana species group is provided.
Aquatic insects, geographic distribution, taxonomy, Triplectidinae
Leptoceridae, or long-horned caddisflies, with ~2,200 species, is the second most species-rich trichopteran family (
Notalina Mosely, 1936 belongs to Triplectidinae and contains 27 species divided into two subgenera, the nominotypical Notalina (Notalina) (15 species) and Notalina (Neonotalina) Holzenthal, 1986 (12 species) restricted to the Australasian and Neotropical regions, respectively (
In the Neotropical region, N. (Neonotalina) occurs exclusively in South America. Its highest species diversity occurs in Brazil, with nine species described (N. brasiliana Holzenthal, 1986, N. cipo Holzenthal, 1986, N. franciscana Henriques-Oliveira, Rocha & Nessimian, 2018, N. froehlichi Calor & Holzenthal, 2006, N. goianensis Calor, 2008, N. hamiltoni Holzenthal, 1986, N. jordanensis Henriques-Oliveira, Spies & Dumas, 2012, N. morsei Holzenthal, 1986, and N. paulista Calor & Holzenthal, 2006), distributed mainly in the highlands of the Cerrado and Atlantic Forest biomes of Southeastern region of the country (
In this study, we describe and illustrate a new species of N. (Neonotalina) based on adult males from two protected and preserved areas in the Cerrado biome of Central-west and North regions of Brazil, in Federal District and Tocantins states, respectively. We also provide new distributional records for N. brasiliana. In addition, a key is provided to identification of males of species in the brasiliana group.
Specimens were collected mainly in streams of three conservation units of the Brazilian Cerrado biome. Two of them located in the
Federal District, midwestern Brazil (Estação Ecológica de Águas Emendadas (ESECAE) in Planaltina and
Parque Nacional de Brasília (PNB) in Brasília) and the third unit located in the Tocantins state, northern Brazil (
Parque Estadual do Lajeado (PEJ), located in the Palmas municipality). One additional specimen was collected in a river in the São Desidério municipality, west of Bahia state, northeast region. Adults were collected by Malaise trap (
In order to observe male genital structures, the abdomen of each specimen was removed and diaphanized using heated 10% KOH as detailed by
Photographs of the habitus, head and wings of adults were obtained using a Leica DFC420 video camera attached to a Leica M165C stereomicroscope and with a LED illumination dome (
The distribution map was prepared using QGIS Las Palmas 2.18.10 software (
Types and other material examined are deposited in the following collections:
Coleção de Invertebrados, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brasil (
This new species can be easily recognized by the absence of processes on the median portion of tergum X, inferior appendages with ventromesal process indistinct laterally and distinct ventrally with subtruncated apex, and Y-shaped phallotremal sclerite in lateral view. Notalina ralphi sp. nov. is morphologically similar to N. franciscana based on the subtruncate mesoventral process of the inferior appendages in ventral view. However, N. ralphi sp. nov. has the acuminate preanal appendages, which in N. franciscana are clavate. In addition, in the new species the ventrolateral margin of the segment X has stout, short setae, whereas N. franciscana has these setae only in the apex of the tergum.
Male. Head brown (in alcohol) (Fig.
Holotype
Brazil • ♂; Federal District, Planaltina, Estação Ecológica de Águas Emendadas, Córrego Tabatinga; 15.545361°S, 47.566222°W, 1047 m, 04–24 Apr. 2018, G.R. Desidério, C.A. Campos, F. Camelo legs.; Malaise trap;
Paratypes
Brazil• 3 ♂♂; same data as for holotype (
The new species is named in honor of Dr. Ralph W. Holzenthal (University of Minnesota, USA) in recognition of his efforts to the advancement of the knowledge on Neotropical caddisflies and his contributions in supervising new entomologists.
Notalina (Neonotalina) brasiliana
Holzenthal, 1986: 63 [type locality: Brazil, Minas Gerais, Serra do Caraça;
Brazil – Bahia • 1 ♂; São Desidério, Rio das Fêmeas, BR-020, ponte (#02); 12.466667°S, 45.854583°W; 744 m a.s.l.; 23 Oct. 2008; N. Hamada, G. Fleck, C.A.S. Azevêdo, R. Kikuchi legs;
Brazil: Cerrado (Bahia [new record], Distrito Federal [new record] and Minas Gerais States) (Fig.
1 | Preanal appendage long, ~ 2/3 length of segment X ( |
2 |
– | Preanal appendage short, ~ 1/2 length of segment X ( |
6 |
2 | Apicolateral processes of segment X mound-like, broad (Fig. |
3 |
– | Apicolateral processes of segment X digitate, slender ( |
5 |
3 | Basal portion of inferior appendage slender in lateral view ( |
N. franciscana |
– | Basal portion of inferior appendage broad in lateral view (Fig. |
4 |
4 | Preanal appendages acuminate (Fig. |
N. ralphi sp. nov. |
– | Preanal appendages digitate ( |
N. jordanensis |
5 | Dorsomesal processes of segment X short, 1/2 the length of the ventrolateral processes ( |
N. goianensis |
– | Dorsomesal processes of segment X long, 1/3 longer than the ventrolateral processes ( |
N. brasiliana |
6 | Apicodorsal area of segment IX with single or paired protuberances ( |
7 |
– | Apicodorsal area of segment IX without protuberances; apicolateral processes of segment X mound-like, broad ( |
9 |
7 | Distal area of segment X with dorsomesal processes ( |
N. froehlichi |
– | Distal area of segment X without dorsomesal processes ( |
8 |
8 | Apicodorsal area of segment IX with single protuberance ( |
N. hamiltoni |
– | Apicodorsal area of segment IX with paired protuberances ( |
N. paulista |
9 | Distal area of segment X with dorsolateral processes; without dorsomesal processes ( |
N. cipo |
– | Distal area of segment X without dorsolateral processes; with dorsomesal processes ( |
N. morsei |
The species diversity of N. (Neonotalina) in Brazil is concentrated in the Atlantic Forest and Cerrado biomes of Southeastern region with eight species (N. brasiliana, N. cipo, N. franciscana, N. froehlichi, N. hamiltoni, N. jordanensis, N. morsei and N. paulista). So far, only one species of N. (Neonotalina) has been recorded from the Central-West (N. goianensis) and Northeast (N. cipo) regions (
Distribution of Notalina (Neonotalina) species recorded from Brazil. Abbreviations for Brazilian states: BA = Bahia; Federal District = DF; ES = Espírito Santo; Goiás = GO; MG = Minas Gerais; RJ = Rio de Janeiro; SP = São Paulo; Tocantins = TO.
Species | Region (state) | Biome |
---|---|---|
N. brasiliana Holzenthal, 1986 | Southeast (MG); Central-West (DF); Northeast (BA) | Cerrado |
N. cipo Holzenthal, 1986 | Southeast (MG); Northeast (BA) | Atlantic Forest; Cerrado |
N. franciscana Henriques-Oliveira, Rocha & Nessimian, 2018 | Southeast (MG) | Cerrado |
N. froehlichi Calor & Holzenthal, 2006 | Southeast (MG) | Cerrado |
N. goianensis Calor, 2008 | Central-West (GO) | Cerrado |
N. hamiltoni Holzenthal, 1986 | Southeast (SP) | Atlantic Forest |
N. jordanensis Henriques-Oliveira, Spies & Dumas, 2012 | Southeast (SP) | Atlantic Forest |
N. morsei Holzenthal, 1986 | Southeast (ES, MG, RJ, SP) | Atlantic Forest; Cerrado |
N. paulista Calor & Holzenthal, 2006 | Southeast (MG, SP) | Atlantic Forest; Cerrado |
N. ralphi sp. nov. | Central-West (DF); North (TO) | Cerrado |
The occurrence of N. (Neonotalina) species in the Federal District represents the first record of Integripalpia for the federative unit. Previously, only seven species of Annulipalpia were known (
Notalina (Neonotalina) ralphi sp. nov. has strong affinity to the brasiliana species group of
Therefore, this study highlights the need for more taxonomic studies focused on N. (Neonotalina) in Brazil, especially in the poorly sampled Amazon, Caatinga, Pampas, and Pantanal biomes, as well as an updated phylogenetic study including species newly described, morphological characters of immature stages, and multi-locus molecular sequence data.
We thank all members of the Laboratório de Citotaxonomia e Insetos Aquáticos (LACIA) who contributed to the specimen collection and fieldwork support, specially to Jeferson Oliveira da Silva. Special thanks also to Camila Aida Campos and Flávio Roque Bernades Camelo for their friendship, valuable field work assistance in parks of the Distrito Federal and maintenance of Malaise traps in the field. We thank the Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) for collecting permits. GRD is grateful to Dr Beatriz Ronchi Teles (