Machadagrion dardanoi (Santos, 1968) comb. nov.

Fig. 48 (app), Fig. 51 (prothorax), Fig. 54 (penis), Fig. 57 (habitus).

Etymology: dardanoi = named after Prof. Dr. Dardano de Andrade Lima (1919–1981) Brazilian botanist.

Santos 1968a: 63, Figs. 1–6 (description of male and female, illustrations of penis in lateral and ectal views, appendages in lateral and dorsal views, pterostigma of male fore wing, male prothorax in dorsal view); Santos 1979: 170 (compared with L. bocainense); Davies & Tobin 1984: 82 (data on publication and distribution); Bridges 1994: (VII) 64 (data on publication, type depository, type locality and references); Machado & Costa 1990: 301 (data on publication and distribution); Costa & Mascarenhas 1998: 6 (data on types); Costa & Garrison 2001: 382, Figs. 16 a–c, 35b, 39a (key to Brazilian species of Leptagrion, illustration of appendages in lateral, mediodorsal and dorsal views, male hindwing pterostigma and male prothorax in dorsal view); Lencioni 2006: 145, Figs. 86A–F (data on description, type locality, type deposition, distribution, and larval description, illustration of appendages in lateral, mediodorsal and dorsal views, penis in lateral and ectal views, male prothorax in dorsal view, male hind wing pterostigma); Costa et al. 2009: 99 (description and illustration of larva); Garrison et al. 2010: 264, Figs. 1653, 1658, 1663 (data on species, illustration of appendages in lateral, mediodorsal and dorsal views).

Deposition of type series. Holotype & allotype in MNRJ (examined—destroyed by fire on 2.ix.2018) .

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

Material examined. (2 ♂♂, 2 ♀♀): 1 ♂ + 1 ♀ Brazil: Pernambuco, Recife, Parque Zoobotanico Dois Irmãos (mata), 18.xi.1965, N.D. Santos leg. (holotype #434 & allotype #432) ; 1 ♂ + 1 ♀ Brazil: Pernambuco, Recife, Parque Zoobotanico Dois Irmãos (mata), 18.xi.1965, N.D. Santos leg. (paratypes —ex-collection MNRJ #433) .

Distribution. Brazil (Pernambuco, Ceará).