Ig. 17A ) .........................A. curtus Apical spine of penes quick (Fig. 17C

magnusSent an undescribed species. Truncatoflabellum crassum (Milne Edwards Haime, 1848) Fig. 5C nymphs (only 3 species known, virtually undistinguishable, the characters under really should be confirmed using the study of much more material) 1 ?two ?On the inner margin of left mandibular tusk, the space among the subbasal as well as the submedian tubercles is brief and strongly concave (Fig. 14C, E, G) ......................................................................... A. magnus (only known from Napo, Ecuador) / A. guarani (Paran?and Uruguay basins)Asthenopus curtus (Hagen) Figs 4E, 14A, 16A , 17A , 18A, G, 20G Palingenia albifilum var.; Walker 1853: 554. Palingenia curta Hagen 1861: 304. Campsurus curtus; Eaton 1868: 84; Eaton 1883: 40; Ulmer 1921: 240. Asthenopus curtus; Eaton 1871: 59; Ulmer 1920c: 107; Ulmer 1921: 240; Lestage 1922b: fpsyg.2015.00334 142; Ulmer 1942: 105; Traver 1956b: 7; j.cub.2015.05.021 Kimmins 1960: 312; Sattler 1967: 104; Berner 1978: 103; Hubbard 1982a: 270;.Ig. 17A ) .........................A. curtus Apical spine of penes short (Fig. 17C, E ) ................................................three Penes long, apical spine slightly marked, median remnant of styliger plate projecting laterally (Fig. 17E ) ..................................................A. guarani Penes short, apical spine nicely marked, median remnant of styliger plate regular (Fig. 17C) .......................................................................... A. hubbardi FW 9.5?0.1; penile lobe strongly widened basally (ratio length / basal width = 2.9, Fig. 17G) and having a little distal indentation close to apical spine (arrow in Fig. 17G)................................................................................. A. magnus FW 7.0?.five mm; penile lobe not so wide at the base (ratio length / basal width = 4.0?.0, Fig. 17D); with no apical indentation as above .............A. angelaeFemale and eggs of Asthenopus species are strongly comparable. They may be identified by comparison with co-occurring males. Nevertheless the eggs extracted from female adults or mature nymphs may well be keyed as follows: 1 Disk like structures on the equatorial region relatively well separated from each and every other, separation about 0.six or more of maximum width of a disk (Fig. 18B, C, E)...........................................................................................................Carlos Molineri et al. / ZooKeys 478: 45?28 (2014)?two ?Disk like structures around the equatorial region almost touching every other, maximum separation about 0.three or much less of maximum width of a disk (Fig. 18A, D).... ......................................................................................Ig. 17A ) .........................A. curtus Apical spine of penes short (Fig. 17C, E ) ................................................3 Penes long, apical spine slightly marked, median remnant of styliger plate projecting laterally (Fig. 17E ) ..................................................A. guarani Penes short, apical spine properly marked, median remnant of styliger plate typical (Fig.Ig. 17A ) .........................A. curtus Apical spine of penes quick (Fig. 17C, E ) ................................................3 Penes lengthy, apical spine slightly marked, median remnant of styliger plate projecting laterally (Fig. 17E ) ..................................................A. guarani Penes brief, apical spine nicely marked, median remnant of styliger plate standard (Fig. 17C) .......................................................................... A. hubbardi FW 9.5?0.1; penile lobe strongly widened basally (ratio length / basal width = 2.9, Fig. 17G) and with a little distal indentation close to apical spine (arrow in Fig. 17G)................................................................................. A. magnus FW 7.0?.five mm; penile lobe not so wide in the base (ratio length / basal width = 4.0?.0, Fig. 17D); devoid of apical indentation as above .............A. angelaeFemale and eggs of Asthenopus species are strongly equivalent. They may be identified by comparison with co-occurring males. Nevertheless the eggs extracted from female adults or mature nymphs may be keyed as follows: 1 Disk like structures around the equatorial region reasonably effectively separated from every other, separation about 0.six or more of maximum width of a disk (Fig.