Nathaliagrion perlongum (Calvert, 1909) comb. nov.

Fig. 59 (app), Fig. 61 (prothorax), Fig. 63 (penis), Fig. 65 (habitus).

Etymology: perlongum = per Latin for very + longum Latin for long, in reference to the very long abdomen.

Calvert 1909: 157 (description of male, compared with the description of L. porrectum); Santos 1962: 1, Fig. 1–5, 7, 10 & 12 (description of female, illustration of appendages in lateral and dorsal views, male post-sternum in lateral view, male and female prothorax in dorsal views, female pterostigma of fore and hind wing, male pterostigma of fore wing); Santos 1966: 83 (data on larvae); Davies & Tobin 1984: 82 (data on publication and distribution); Bridges 1994: (VII) 183 (data on publication, type depository, type locality [incorrectly assigned as Argentina], and references); De Marco, Jr. & Furieri 2000: 135 (ecological data); Costa & Garrison 2001: 382, Figs. 1a–c, 21, 22, 36, 44a, 52b, 60 (key to Brazilian Leptagrion, illustration of appendages in lateral, mediodorsal and dorsal views, venter of male thorax in lateral view, male habitus, female prothorax in dorsal view, female S 8–10 in lateral views, male forewing pterostigma, female hindwing pterostigma); Costa et al. 2009: 103 (description and illustration of larva); Lencioni 2006: 150, Figs. 91A–J (data on description, type locality, type deposition, distribution, and larval description, illustration of appendages in lateral, dorsal and mediodorsal views, male and female prothorax in dorsal views, male fore wing pterostigma, female pterostigma, female S 8–10 in lateral view); Garrison et al. 2010: 264, Figs. 1648–1650, 1656, 1660, 1666–1670 (data on species, illustration of penis in lateral, ento-lateral and ectal views, appendages in lateral, mediodorsal and dorsal views, female S 10 in mediodorsal, ventro-lateral views, ovipositor in ventral view, detail of ovipositor teeth); Lencioni 2017a: 379, Figs. 223A–D, 224A–B (data on description, type locality, type deposition, distribution, and larval description, illustration of appendages in lateral and dorsal views, male prothorax in lateral and dorsal views, male and female habitus).

Deposition of type series. Holotype in CM (not examined).

Larva described. Yes (Costa et al. 2009).

Material examined. (12 ♂♂, 7 ♀♀): 1 ♂ Brazil: Santa Catarina, Joinville, 12.iv.1981, A.B.M. Machado leg. ; 1 ♀ Brazil: São Paulo, Caraguatatuba, Praia de Ponta Aguda, 23º35’13”S & 45º15’57”W, 07 m, 01.ii.1999, F.A.A. Lencioni leg. ; 3 ♂♂ + 2 ♀♀ Brasil, São Paulo, Caraguatatuba, Parque Estadual da Serra do Mar—Núcleo Caraguatatuba (coletas sob permissão—COTEC 608/99—SMA 42.086/99), 15.i.2000, F.A.A. Lencioni leg. ; 1 ♂ + 3 ♀♀ Brazil: São Paulo, Caraguatatuba, Parque Estadual da Serra do Mar—Núcleo Caraguatatuba (coletas sob permissão—COTEC 608/99—SMA 42.086/99), 05.ii.2000, F.A.A. Lencioni leg. ; 1 ♂ Brazil: São Paulo, Caraguatatuba, Parque Estadual da Serra do Mar—Núcleo Caraguatatuba (coletas sob permissão—COTEC 608/99—SMA 42.086/99), 21.iv.2001, F. Lencioni leg. ; 3 ♂♂ Brazil: São Paulo, Caraguatatuba, Parque Estadual da Serra do Mar—Núcleo Caraguatatuba (coletas sob permissão—COTEC 608/99—SMA 42.086/99), 10.iii.2002, F.A.A. Lencioni leg. ; 1 ♂ Brazil: São Paulo, Caraguatatuba, Parque Estadual da Serra do Mar—Núcleo Caraguatatuba (coletas sob permissão—COTEC 608/99—SMA 42.086/99), 10.iii.2002, F. Lencioni leg. ; 1 ♂ Brazil: São Paulo, Caraguatatuba, Praia de Ponta Aguda, 23º35’13”S & 45º15’57”W, 07 m, 01.ii.2004, F.A.A. Lencioni leg. ; 1 ♀ Brazil: São Paulo, Caraguatatuba, Praia de Ponta Aguda, 23º35’13”S & 45º15’57”W, 07 m, 31.i.2004, F.A.A. Lencioni leg. ; 1 ♂ Brazil: São Paulo, Caraguatatuba, Praia de Ponta Aguda, 23º35’13”S & 45º15’57”W, 07 m, 09.ix.2006, F.A.A. Lencioni leg.

Distribution. Brazil (Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina).