Contributions to the taxonomy of the Brazilian <i>Leurus</i> Townes, 1946 (Hymenoptera: Ichneumonidae, Metopiinae)

Leurus Townes, 1946 is a small genus of Metopiinae (Hymenoptera: Ichneumonidae), consisting of 13 described species distributed in the Neotropics and the Nearctic region. The present work aims to contribute to the taxonomic knowledge of Leurus in Brazil. A total of 109 specimens were identified and 15 literature records were analyzed. The genus geographical occurrence was evaluated according to data obtained from the literature and labels of analyzed specimens. Five species of Leurus were identified for the Brazilian fauna: L. angustignathus, L. caeruliventris, L. discus, L. gracius and L. nostrus. New municipality records of occurrence were made for L. angustignathus in the state of São Paulo, L. caeruliventris in the states of Bahia, Distrito Federal, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, Piauí and Rondônia; for, L. discus in the state of Alagoas and São Paulo, and L. gracius in the state of Minas Gerais, Rio de Janeiro, and São Paulo. Females of L. angustignathus and L. gracius were described for the first time in the present study. The genitalia of males of L. caeruliventris, L. discus and L. gracius were described and illustrated for the first time.

Keywords
Wasps; Ichneumonoidea; New Records; Parasitoids

Authorship

Henrique Pereira Moleiro ⁵5E-mail: henriquebiologus@gmail.com (corresponding author)

Conceptualization

Data Curation

Formal Analysis

Investigation

Methodology

Writing - original draft

discussion of the results

reviewed

approved the final version of the paper

Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). São Paulo, SP, Brasil.Universidade de São PauloBrasilSão Paulo, SP, BrasilUniversidade de São Paulo (USP), Museu de Zoologia (MZUSP). São Paulo, SP, Brasil.

http://orcid.org/0000-0003-0748-4637

Helena Carolina Onody ⁶6E-mail: helenaonody@gmail.com

Conceptualization

Data Curation

Formal Analysis

Investigation

Methodology

Supervision

Writing - review & editing

discussion of the results

reviewed

approved the final version of the paper

Universidade Estadual do Piauí (UESPI), Corrente, PI, Brasil.Universidade Estadual do PiauíBrasilCorrente, PI, BrasilUniversidade Estadual do Piauí (UESPI), Corrente, PI, Brasil.

http://orcid.org/0000-0003-3570-8183

Gabriela Procópio Camacho ⁷7E-mail: gpcamacho@usp.br

Supervision

Writing - review & editing

discussion of the results

reviewed

approved the final version of the paper

http://orcid.org/0000-0002-8792-7719

Angélica Maria Penteado-Dias ⁸8E-mail: angelica@ufscar.br

Writing - review & editing

discussion of the results

reviewed

approved the final version of the paper

Universidade Federal de São Carlos (UFSCAR), Centro de Ciências Biológicas e da Saúde (CCBS), Departamento de Ecologia e Biologia Evolutiva (DEBE). São Carlos, SP, Brasil.Universidade Federal de São CarlosBrasilSão Carlos, SP, BrasilUniversidade Federal de São Carlos (UFSCAR), Centro de Ciências Biológicas e da Saúde (CCBS), Departamento de Ecologia e Biologia Evolutiva (DEBE). São Carlos, SP, Brasil.

http://orcid.org/0000-0002-8371-5591

Mabel Alvarado ⁹9E-mail: mag2199@hotmail.com

Writing - review & editing

discussion of the results

reviewed

approved the final version of the paper

Universidad Nacional Mayor de San Marcos (USMSM), Museo de Historia Natural, Departamento de Entomología. Lima, D.C., Perú.Universidad Nacional Mayor de San MarcosPerúLima, D.C., PerúUniversidad Nacional Mayor de San Marcos (USMSM), Museo de Historia Natural, Departamento de Entomología. Lima, D.C., Perú.

http://orcid.org/0000-0001-8135-9223

Ricardo Javier Ballón-Estacio ¹⁰10E-mail: ricardo.ballon@unmsm.edu.pe

Writing - review & editing

discussion of the results

reviewed

approved the final version of the paper

http://orcid.org/0000-0002-5465-9391

Alvaro Doria dos Santos ¹¹11E-mail: alvarods3@gmail.com

Conceptualization

Data Curation

Formal Analysis

Investigation

Methodology

Writing - original draft

discussion of the results

reviewed

approved the final version of the paper

http://orcid.org/0000-0002-7997-4195

⁵E-mail: henriquebiologus@gmail.com (corresponding author)

⁶E-mail: helenaonody@gmail.com

⁷E-mail: gpcamacho@usp.br

⁸E-mail: angelica@ufscar.br

⁹E-mail: mag2199@hotmail.com

¹⁰E-mail: ricardo.ballon@unmsm.edu.pe

¹¹E-mail: alvarods3@gmail.com

Edited by:

Carlos José Einicker Lamas

CONFLICTS OF INTEREST:

Authors declare that there are no conflicts of interest.

SCIMAGO INSTITUTIONS RANKINGS

Universidade Estadual do Piauí (UESPI), Corrente, PI, Brasil.Universidade Estadual do PiauíBrasilCorrente, PI, BrasilUniversidade Estadual do Piauí (UESPI), Corrente, PI, Brasil.

Figures

Figures (7)

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Figures 1-7
Leurus angustignathus, Female. (1) Face in frontal view. (2, 3) Detail of the mandible, with the presence of the ventral lobe short, in frontal view. (4) Lateromedial longitudinal carina of propodeum in dorsal view. (5) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (6) Habitus. (7) Metasoma in ventral view. Scale bars: 200 μm (1), 100 μm (2), 100 μm (3), 200 μm (4), 200 μm (5), 1.0 mm (6) and 500 μm (7).

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Figures 8-14
Leurus caeruliventris, Female. (8) Face in frontal view. (9, 10) Detail of the mandible, with the presence of the ventral lobe, in frontal view. (11) Lateromedial longitudinal carina of propodeum in dorsal view. (12) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (13) Habitus. (14) Metasoma in ventral view. Scale bars: 200 μm (8), 100 μm (9), 100 μm (10), 200 μm (11), 200 μm (12), 2.0 mm (13) and 500 μm (14).

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Figures 15-21
Leurus discus, Male. (15) Face in frontal view. (16, 17) Detail of the mandible, with the presence of the ventral lobe, in frontal view. (18) Lateromedial longitudinal carina of propodeum in dorsal view. (19) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (20) Habitus. (21) Metasoma in ventral view. Scale bars: 200 μm (15), 100 μm (16), 100 μm (17), 200 μm (18), 200 μm (19), 2.0 mm (20) and 500 μm (21).

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Figures 22-28
Leurus gracius, Male. (22) Face in frontal view. (23, 24) Detail of the mandible, with the presence of the ventral lobe, in frontal view. (25) Lateromedial longitudinal carina of propodeum in dorsal view. (26) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (27) Habitus. (28) Metasoma in ventral view. Scale bars: 200 μm (22), 100 μm (23), 100 μm (24), 200 μm (25), 200 μm (26), 2.0 mm (27), and 2.0 mm (28).

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Figures 29-34
Males. Genital capsules and hypopygium of Leurus in dorsal view. (29) Genital capsule of L. discus, (30) Genital capsule of L. gracius and (31) Genital capsule of L. caeruliventris. (32) Hypopygium of L. discus, (33) Hypopygium of L. gracius and (34) Hypopygium of L. caeruliventris. Scale bars: 200 μm.

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Figures 35-36
Map of known distribution occurrences of Leurus in Brazil. (35) L. angustignathus. (36) L. caeruliventris.

Thumbnail

Figures 37-38
Map of known distribution occurrences of Leurus in Brazil. (37) L. discus. (38) L. gracius.

Figures 1-7 Leurus angustignathus, Female. (1) Face in frontal view. (2, 3) Detail of the mandible, with the presence of the ventral lobe short, in frontal view. (4) Lateromedial longitudinal carina of propodeum in dorsal view. (5) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (6) Habitus. (7) Metasoma in ventral view. Scale bars: 200 μm (1), 100 μm (2), 100 μm (3), 200 μm (4), 200 μm (5), 1.0 mm (6) and 500 μm (7).

Figures 8-14 Leurus caeruliventris, Female. (8) Face in frontal view. (9, 10) Detail of the mandible, with the presence of the ventral lobe, in frontal view. (11) Lateromedial longitudinal carina of propodeum in dorsal view. (12) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (13) Habitus. (14) Metasoma in ventral view. Scale bars: 200 μm (8), 100 μm (9), 100 μm (10), 200 μm (11), 200 μm (12), 2.0 mm (13) and 500 μm (14).

Figures 15-21 Leurus discus, Male. (15) Face in frontal view. (16, 17) Detail of the mandible, with the presence of the ventral lobe, in frontal view. (18) Lateromedial longitudinal carina of propodeum in dorsal view. (19) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (20) Habitus. (21) Metasoma in ventral view. Scale bars: 200 μm (15), 100 μm (16), 100 μm (17), 200 μm (18), 200 μm (19), 2.0 mm (20) and 500 μm (21).

Figures 22-28 Leurus gracius, Male. (22) Face in frontal view. (23, 24) Detail of the mandible, with the presence of the ventral lobe, in frontal view. (25) Lateromedial longitudinal carina of propodeum in dorsal view. (26) Lateromedial longitudinal carina in the first metasomal tergite in dorsal view. (27) Habitus. (28) Metasoma in ventral view. Scale bars: 200 μm (22), 100 μm (23), 100 μm (24), 200 μm (25), 200 μm (26), 2.0 mm (27), and 2.0 mm (28).

Figures 29-34 Males. Genital capsules and hypopygium of Leurus in dorsal view. (29) Genital capsule of L. discus, (30) Genital capsule of L. gracius and (31) Genital capsule of L. caeruliventris. (32) Hypopygium of L. discus, (33) Hypopygium of L. gracius and (34) Hypopygium of L. caeruliventris. Scale bars: 200 μm.

Figures 35-36 Map of known distribution occurrences of Leurus in Brazil. (35) L. angustignathus. (36) L. caeruliventris.

Figures 37-38 Map of known distribution occurrences of Leurus in Brazil. (37) L. discus. (38) L. gracius.

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Contributions to the taxonomy of the Brazilian <i>Leurus</i> Townes, 1946 (Hymenoptera: Ichneumonidae, Metopiinae)

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[1] ⁵E-mail: henriquebiologus@gmail.com (corresponding author)