Microvelia nelsoni Moreira, Barbosa & Ribeiro, 2012

Rodrigues, Juliana Mourão Dos Santos, Cordeiro, Isabelle Da Rocha Silva, Floriano, Carla Fernanda Burguez, Paiva, Nathália De Oliveira, Magalhães, Oséias Martins, Júnior, Evaldo Alves Joaquim, Martins, Thaynara De Souza, Silva, Rafaella Cardoso Da, Siqueira, Gabriel Vieira, Salles, Frederico Falcão, Viala, Séverine, Khila, Abderrahman & Moreira, Felipe Ferraz Figueiredo, 2023, Descriptions of new species and new records of water bugs (Hemiptera: Heteroptera: Gerromorpha & Nepomorpha) from southeastern Brazil, Zootaxa 5393 (1), pp. 1-86 : 22

Microvelia nelsoni Moreira, Barbosa & Ribeiro, 2012

Fig. 14

Diagnosis. Body length 1.7–2.0 mm; general color black, with orange mark on pronotum and several areas of silvery pubescence; apterous pronotum completely covering mesonotum and metanotum; male terminalia not sinistrally rotated; venter of male abdominal segment VIII not centrally depressed; male proctiger without lateral projections; female abdominal laterotergites not reflected over mediotergites (Moreira 2012).

Comments. The specimens examined display variations ( Fig. 14 ) that indicate a probable synonymy with M. argentata Nieser & Alkins-Koo, 1991 , M. aschnakiranae Makhan, 2014 and M. hambletoni Drake, 1952 . A thorough revision of these and other Neotropical species of Microvelia Westwood, 1834 is in progress.

New records. BRAZIL — Espírito Santo • Conceição da Barra, São Domingos River ; −18.5726, −39.7573; 18. IV.2015; FFF Moreira, IRS Cordeiro, A Khila, S Viala, A Gomes leg.; 1 female, CEIOC 81776 .— Rio de Janeiro • Rio de Janeiro, Jacarepaguá, Parque Estadual da Pedra Branca , Pau da Fome , Grande River ; −22.9335, −43.4450; 02. V.2015; FFF Moreira, IRS Cordeiro, JMS Rodrigues; 1 male, 4 females, CEIOC 28836 • Rio de Janeiro, Parque Nacional da Tijuca, Tijuca River basin; −22.9488, −43.2861; 03.XII.2014; FFF Moreira, FS Motta, JMS Rodrigues; 3 males, 2 females, CEIOC 28829 .— São Paulo • São José do Barreiro, Parque Nacional da Serra da Bocaina, Mambucaba River ; −22.7430, −44.6165; 07. II.2015; FFF Moreira, IRS Cordeiro, FS Motta, B Clarkson leg.; 4 males, 14 females, CEIOC 28819 .

Distribution in Brazil. BA, ES*, PA, RJ, SP.

Figures

FIGURE 14. Collected specimens (A–C), and distribution in southeastern Brazil and adjacent areas (D). Gerromorpha, Gerridae, Microvelia nelsoni. A. Apterous male from Rio de Janeiro, Rio de Janeiro (−22.9488, −43.2861). B. Macropterous male from Rio de Janeiro, Rio de Janeiro (−22.9335, −43.4450). C. Apterous female from São José do Barreiro, São Paulo (−22.7430, −44.6165). Stars indicate new records; circles indicate previous records. Scale bars: 1 mm.