Anacroneuria

Ribeiro, José Moacir Ferreira & Rafael, José Albertino, 2009, Redescription of the species of Anacroneuria Klapálek known from the Reserva Florestal Adolpho Ducke, Amazonas, Brazil with a neotype designation, and a key to adults males, Amazonas, Brazil. (Plecoptera, Perlidae), Zootaxa 2004, pp. 1-15 : 2

Key to adult Anacroneuria of Reserva Floresta Adolpho Ducke, A. amazonica known only from females

1– Pronotum largely dark brown laterally and narrowly dark brown posteriorly, medially light yellow ( Figs 6–7 ); head predominantly dark brown with ocelli separated by twice their width ( Fig. 8 ). Aedeagus scletotized, apex truncate ( Figs. 30–32 ). Penial armature with hooks short, folded for low ( Fig. 31 ). Female sternum eight with median notch deeper and paramedian lobes longer and lateral lobes small ( Fig. 33 ). ................................ Anacroneuria manauensis

– Pronotum light brown to yellow laterally, medially light yellow, reaching the posterior margin ( Figs. 1–2 , 11–12 ); head predominantly yellow to whitish in alcohol with ocelli separated by one time their width ( Figs. 3 , 13 ); aedeagus less scletotized, apex acuminate ( Figs. 20–22 , 40-42 ). Female sternum eight with median notch shallower or deeper than sublateral notch ( Figs. 23 , 43 and 45 ) ................................................................................................................... 2

2– Pronotum with narrow and distinct lateral brown stripe ( Fig. 13 ); apex of aedeagus trilobed ( Figs. 40–41 ). Penial armature with hooks short, folded slightly for low ( Fig. 41 ). Female sternum eight with lateral lobes longer than paramedian lobes ( Fig. 43 ) .......................................................................................................... Anacroneuria marlieri

– Pronotum uniformly colored, lacking lateral stripe or with lateral stripes composed of lightly pigmented rugosities ( Fig. 3 ); aedeagal apex with a distinct medial lobe ( Figs. 20–21 ). Female sternum eight with lateral lobes equal to or shorter than paramedian lobes ( Figs. 2 ) ........................................................................................................................ 3

3– Pronotum with slightly darker lateral stripe ( Fig. 3 ). Apex of aedeagus with a wavy medial keel, with internal depression and two distinct, membranous vesicles, penial armature with hooks long, directed inward ( Fig. 21 ). Female sternum eight with four lobes of equal length ( Fig. 23 ) ................................................... Anacroneuria minuta

– Pronotum uniformly colored, without darker lateral stripe. Female sternum eight with lateral lobes smaller than paramedian lobes (Fig. 46) ..................................................................................................... Anacroneuria amazonica

Figures

FIGURES 6 – 10 Anacroneuria manauensis. 6. male habitus (in life); 7. female habitus (in alcohol); 8. head and pronotum; 9. forewing; 10. hindwing.

FIGURES 26 – 35. Anacroneuria manauensis; 26. Male, Sterna 7 – 10, ventral; 27. Male, hammer, ventral; 28. Male, hammer, lateral; 29. Male, paraproct lateral; 30. Male, aedeagus, dorsal; 31. Male, aedeagus, ventral; 32. Male, aedeagus, lateral; 33. Female, sterna 6 – 8; 34. Female sterna 9 – 10; 35. vaginal sclerite. Abbreviations: H, hammer; HOK, hooks; LL, lateral lobe; MN, medium notch; PML, paramedian lobe; SD, sub – apical denticle; SLN, sublateral notch; ST, sternite. Figures 30 – 32 same scales; Figures 33 – 34 same scales.

FIGURES 1 – 5. Anacroneuria minuta. 1. male habitus (in life); 2. female habitus (in alcohol); 3. head and pronotum; 4. forewing; 5. hindwing.

FIGURES 11 – 15. Anacroneuria marlieri. 11. male habitus (in life); 12. female habitus (in alcohol); 13. head and pronotum; 14. forewing; 15. hindwing.

FIGURES 16 – 25. Anacroneuria minuta; 16. Male, sterna 8 – 10, ventral; 17. Male, hammer, ventral; 18. Male, hammer, latera; 19. Male, paraproct lateral; 20. Male, aedeagus, dorsal; 21. Male, aedeagus, ventral; 22. Male, aedeagus, lateral; 23. Female, sterna 7 – 8; 24. sterna 9 – 10; 25. vaginal sclerite. Abbreviations: H, hammer; HOK, hooks; K, keel; LL, lateral lobe; MN, medium notch; PML, paramedian lobe; SD, sub – apical denticle; SLN, sublateral notch; ST, sternite; VES, vesicle. Figures 20 – 22 same scales; Figures 23 – 24 same scales.

FIGURES 36 – 45. Anacroneuria marlieri; 36. Male, Sterna 7 – 10, ventral; 37 – 38. Male, hammer, ventral and lateral; 39. Male, paraproct lateral; 40. Male, aedeagus, dorsal; 41. Male, aedeagus, ventral; 42. Male, aedeagus, lateral; 43. Female, sterna 7 – 8; 44. Female sterna 9 – 10; 45. vaginal sclerite. Abbreviations: H, hammer; HOK, hooks; LL, lateral lobe; MN, medium notch; PML, paramedian lobe; SD, sub – apical denticle; SLN, sublateral notch; ST, sternite. Figures 40 – 42 same scales; Figures 43 and 44 same scales.