Description of a new species of cecidomyiid (Diptera: Cecidomyiidae) predator of mealybugs (Hemiptera: Pseudococcidae) on sugarcane

Diadiplosis saccharum sp. nov. (Diptera: Cecidomyiidae) is described based on male and female prey on nymphs of mealybug Saccharicoccus sacchari (Cockerell) (Hemiptera: Pseudococcidae) on Saccharum spp. (Poaceae) in São Paulo State, Brazil. Herein, the genus is composed by 33 species. The key of the eight species of the Diadiplosis distributed in Brazil is updated.

Key-Words.
Biodiversity; Ecological association; Neotropical region; Predaceous insect; Taxonomy

Authorship

Maria Virgínia Urso-Guimarães

Universidade Federal de São Carlos (UFSCAR), Centro de Ciências Humanas e Biológicas (CCHB), Departamento de Biologia (DBIO), Laboratório de Sistemática de Diptera. Sorocaba, SP, Brasil. E-mail: mvirginiaurso@gmail.comUniversidade Federal de São CarlosBrasilSorocaba, SP, BrasilUniversidade Federal de São Carlos (UFSCAR), Centro de Ciências Humanas e Biológicas (CCHB), Departamento de Biologia (DBIO), Laboratório de Sistemática de Diptera. Sorocaba, SP, Brasil. E-mail: mvirginiaurso@gmail.com

https://orcid.org/0000-0003-3657-9379

Maiara Alexandre Cruz ³3E-mail: maiara_agronomia@hotmail.com

Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Faculdade de Ciências Agrárias e Veterinárias (FCAV), Departamento de Fitossanidade, Laboratório de Biossistemática de Hemiptera. Jaboticabal, SP, BrasilUniversidade Estadual Paulista “Júlio de Mesquita Filho”BrasilJaboticabal, SP, BrasilUniversidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP), Faculdade de Ciências Agrárias e Veterinárias (FCAV), Departamento de Fitossanidade, Laboratório de Biossistemática de Hemiptera. Jaboticabal, SP, Brasil

https://orcid.org/0000-0003-2892-7038

Nilza Maria Martinelli ⁴4E-mail: nilza.martinelli@unesp.br

https://orcid.org/0000-0003-3201-9120

Ana Lúcia Gonzalez Benfatti Peronti ⁵5E-mail: anaperonti@gmail.com

https://orcid.org/0000-0003-1788-0342

³E-mail: maiara_agronomia@hotmail.com

⁴E-mail: nilza.martinelli@unesp.br

⁵E-mail: anaperonti@gmail.com

Edited by: Carlos José Einicker Lamas

SCIMAGO INSTITUTIONS RANKINGS

Figures

Figures (4)

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Figure 1
Diadiplosis saccharum sp. nov. (A) Male head, frontal view, (B) Male flagellomere 3; (C) Female flagellomere 3; (D) Maxillary palp four-segmented; (E) Tarsal claw, leg 3; (F) Wing.

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Figure 2
Diadiplosis saccharum sp. nov. (A) Male terminalia and posterior abdominal segments, vview; (B) Detailed male terminalia, dorsal view; (C) Female post-abdomen; (D) Female abdomen detailed. Abbreviations: ae = aedeagus, ce = cercus, gc = gonocoxites, gs = gonostylus, hy = hypoproct, sg8 = segment 8.

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Figure 3
Stem nodes of sugarcane Saccharum spp. infested with nymphs of mealybugs Saccharicoccus sacchari.

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Figure 4
Male terminalia of Diadiplosis species. (A) D. abacaxii, (B) D. multifila, (C) D. jamboi, (D) D. coccidivora, (E) D. pseudococci, (F) D. martinsensis, (G) D. bellingeri. Illustrations B, D and E modified from Harris (1968Harris, K.M. 1968. A systematic revision and biological review of the cecidomyiid predators (Diptera, Cecidomyiidae) on world Coccoidea. Transactions of the Royal Entomological Society of London, 119: 409-494.); and C and F modified from Culik & Ventura (2013bCulik, M.P. & Ventura, J.A. 2013b. Two new neotropical species of Midge (Diptera: Cecidomyiidae) predators of scale insects (Hemiptera: Coccoidea). Journal of the Entomological Research Society, 15(2): 103-111.).

Figure 1 Diadiplosis saccharum sp. nov. (A) Male head, frontal view, (B) Male flagellomere 3; (C) Female flagellomere 3; (D) Maxillary palp four-segmented; (E) Tarsal claw, leg 3; (F) Wing.

Figure 2 Diadiplosis saccharum sp. nov. (A) Male terminalia and posterior abdominal segments, vview; (B) Detailed male terminalia, dorsal view; (C) Female post-abdomen; (D) Female abdomen detailed. Abbreviations: ae = aedeagus, ce = cercus, gc = gonocoxites, gs = gonostylus, hy = hypoproct, sg8 = segment 8.

Figure 3 Stem nodes of sugarcane Saccharum spp. infested with nymphs of mealybugs Saccharicoccus sacchari.

Figure 4 Male terminalia of Diadiplosis species. (A) D. abacaxii, (B) D. multifila, (C) D. jamboi, (D) D. coccidivora, (E) D. pseudococci, (F) D. martinsensis, (G) D. bellingeri. Illustrations B, D and E modified from Harris (1968Harris, K.M. 1968. A systematic revision and biological review of the cecidomyiid predators (Diptera, Cecidomyiidae) on world Coccoidea. Transactions of the Royal Entomological Society of London, 119: 409-494.); and C and F modified from Culik & Ventura (2013bCulik, M.P. & Ventura, J.A. 2013b. Two new neotropical species of Midge (Diptera: Cecidomyiidae) predators of scale insects (Hemiptera: Coccoidea). Journal of the Entomological Research Society, 15(2): 103-111.).

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E-mail: einicker@usp.br

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Description of a new species of cecidomyiid (Diptera: Cecidomyiidae) predator of mealybugs (Hemiptera: Pseudococcidae) on sugarcane

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[1] ³E-mail: maiara_agronomia@hotmail.com