Macrogynoplax pulchra Ribeiro-Ferreira & Froehlich, 1999

Ribeiro, José Moacir Ferreira & Rafael, José Albertino, 2007, Description of one new species and a key to adults of Macrogynoplax Enderlein (Plecoptera, Perlidae) from Reserva Florestal Adolpho Ducke, Amazonas, Brazil, Zootaxa 1511 (1), pp. 17-28 : 23-24

Macrogynoplax pulchra Ribeiro-Ferreira & Froehlich

( Figs. 2, 3, 7 , 26-34 ).

Macrogynoplax pulchra Ribeiro-Ferreira & Froehlich, 1999:134 , figs. 7–13. Froehlich, 2003:133 (key).

Diagnosis. Body greenish yellow in life, but whitish in alcohol. Tergum ten of males without sensilla basiconica. The aedeagus lacks penial hooks and the apex of the tube is long and narrows distally. The paraproct has an acute tip with a well-developed subapical spine. The female subgenital plate is wide, covers sternum nine, and has a small transverse furrow along the posterior margin.

Redescription of male holotype. Body greenish yellow in life, whitish yellow in alcohol. Head light to dark yellow (similar to Fig. 4 of M. delicata ), 1.1 mm long, 1.9 mm wide; frons light yellow with conspicuous M-shaped spots rather concolorous with the integument, spots located between the base of the antennae and anterior to the ocelli; ocelli separated by twice their width; maxillary and labial palpi dark to light yellow; scape, pedicel, and flagellum light yellow. Pronotum yellow to whitish (similar to Fig. 4 of M. delicata ). Meso– and metanotum light yellow. Coxa and trochanter light yellow, femur and tibia light yellow, without spots. Fore– and hindwings completely hyaline ( Fig. 7 ). Abdomen light yellow; cerci light yellow with large bristles pale brown. Sternum nine ( Fig. 26 ) wider than long with large median lobe; hammer ( Figs. 28–29 ) slightly rounded; paraproct ( Fig. 30 ) wide at base, apex acute; subapical spine long and pointed. Tergum ten ( Fig. 27 ) lacking sensilla basiconica. Penial armature ( Figs. 31–33 ) lacking penial hooks and apex largely membranous and short.

Female ( Figs. 2 ). The original association is accepted; sternum eight wider than long covering sternum nine with small transverse, posterior groove ( Fig. 34 ).

Variations. Length of male 7.1–9.6 mm; head 0.7–1.1 mm long, 1.4–1.7 mm wide; forewing 10.5–12.0 mm long, 3.4–4.1 wide; hindwing 9.4–10.3 mm long, 4.0– 4.4 mm wide.

Distribution. Amazonas (Manaus).

Material examined. Holotype male ( INPA). BRASIL, AM[azonas], [Manaus], R[eserva] Ducke, Ig [arapé] B[arro] Branco, 25.iii.[19]88, Ferreira A.C., col., Amazonas, Manaus, Reserva Ducke, Ig [arapé] Acará, arm[adilha] de Malaise, 25.iv.1982 (female INPA); same location, 03.vii.1987, A.C.Ferreira (female INPA); same location, Ig. Barro Branco, 10–07.vii.1987, A.C.Ferreira & João Vidal (female INPA); same location, Ig. Anta, 30.x–09.xi.1987 (female INPA); same location, creation in laboratory, 26.ii–05.iii. 1988, A.C.Ferreira (male INPA); same location, Ig. Barro Branco, 20–31.v.1988 (female INPA); same location, arm. Malaise clareira, 18.ix–02.x.1992, A.L.Henriques (male INPA); idem, creation in laboratory, 14.iii.1995, A.C.Ferreira (female INPA); same location, 11.vii.1995 (male MZSP); same location, arm. Malaise, 04.viii.1996, F.L.Oliveira (female INPA); same location, 02–07.ix.1996 (female INPA); same location, 12.ix.1996 (female INPA); same location, Ig. Ipiranga, arm. Malaise, J.M.F. Ribeiro & João Vidal 14– 16.ix.2002 (male INPA); same location, Ig. Tinga, 08–11.xi.2002, J.M.F.Ribeiro (3 female INPA); same location, 05.xii.2002 (female INPA); same location, 09.xii.2002, João Vidal & Jailson Vidal (2 female INPA); same location, 17–27.xii.2002 (male INPA); same location, Ig. Ipiranga, 31.xii.2002 (female INPA); same location, Ig. Bolivia, J.M.F.Ribeiro & João Vidal 03.ii.2003 (2 female MPEG); same location, 24–28.ii.2003 (2 female INPA); same location, 17–24.iii.2003 (female INPA); same location, Ig. Tinga, 01–07.iv.2003 (2 female MZSP); same location, Ig. Ipiranga, 14–20.iv.2003, J.M.F.Ribeiro (female INPA); same location, 15.iv.2003, creation in laboratory (female INPA); same location, 19–26.v.2003 (2 female INPA), same location, 19.v.2003 (female INPA); same location, Ig. Uberê, arm. Malaise, 16–23.vi.2003, J.M.F.Ribeiro & João Vidal (6 female INPA); same location, Ig. Ipiranga, 23–30.vi.2003 (female MPEG); same location, 01– 07.vii.2003 (female INPA); same location, Ig. Uberê, 07–14.vii.2003 (female MZSP); same location, Ig. Acará, 04–11.viii.2003, J.M.F.Ribeiro & A.S.Filho (2 female INPA); same location, 11–18.viii.2003 (female INPA). BRASIL, Amazonas, Manaus, AM-010 Km 25 Ig. Bons Amigos, 24.iv.1995 (male MPEG); same location, BI2, 10–16.x.1996 (2 female INPA); same location, arm. suspensa baixa clareira, 12–23.vi.1997, R.L.M.Ferreira, A.L.Henriques & João Vidal (3 female INPA); same location, arm. Malaise, 22–02.vi.1997 (4 female INPA); same location, 21–31.vii.1997 (14 female, male INPA); same location, 19–28.viii.1997 (5 female INPA); same location, 21–23.vii.1997 (female INPA); same location, 22–31.ix.1997 (2 female INPA); same location, Ig. Acará, arm. Malaise , 12.x.2001, João Vidal (female INPA).

Condition of the holotype: Dissected abdomen in micro vial with glycerin, exuviae separate inside Eppendorf tube, rest of body separate in a glass vial, all inside a larger glass jar with alcohol.

Note. Original publication cites 25.iii.1987 as collection date, while specimen label reads 25.iii. 1988 in the handwriting of one of the authors (A.C. Ferreira-Ribeiro). The publication is most likely incorrect.

Figures

FIGURES 1–8. 1. Macrogynoplax delicata, male habitus (in alcohol); 2–3 M. pulchra. 2. Male habitus (in life); 3. Female habitus (in life); 4. Head and pronotum of M. delicata; 5. Fore– and hindwings of M. delicata; 6. Fore– and hindwings of M. poranga; 7. Fore– and hindwings of M. pulchra; 8. Fore– and hindwings of M. anae.

FIGURES 26–34. Macrogynoplax pulchra. 26. Male, sterna 7-10; 27. Male terga 9-10; 28. Male, hammer, ventral; 29. Male, hammer, lateral; 30. Paraproct, lateral; 31. Aedeagus, dorsal; 32. Aedeagus, ventral; 33. Aedeagus, lateral; 34. Female, sterna 8-10 (original drawing of Ribeiro-Ferreira and Froehlich 1999).