Ptiloneura, Enderlein, 1900

González-Obando, Ranulfo, García Aldrete, Alfonso N., Carrejo-Gironza, Nancy & Rodríguez, Valentina Sarria, 2022, The genus Ptiloneura (Psocodea: Ptiloneuridae) in Valle del Cauca, Colombia altitudinal distribution, new records, and description of two species, Zootaxa 5178 (5), pp. 473-482 : 474

Key to the Ptiloneura species based on males (Subclade C*)

*see Fig. 74 in García Aldrete et al. (2020) and Fig. 125 in González-Obando et al. (2020). Adapted from GonzálezObando et al. (2020)

1. Forewings with pterostigma acutely extended in the middle towards Rs, with one crossvein between 2A and wing margin ( Figs 1 and 7 ); epiproct with basal spinose bulge; hypandrium of three sclerites, the central with three posterior processes, two lateral and one central....................................................................................... 2

- Forewings with pterostigma not acutely extended in the middle towards Rs, with or without crossvein between 2A and wing margin; epiproct without basal spinose bulge; hypandrium of three or five sclerites, if with three sclerites then the central one with variable number of posterior processes.......................... (See identification key in González et al. 2020).

2. Central sclerite of the hypandrium with median process slender, posteriorly straight ( Fig. 16 ), lateral processes with an outer bulge, inner border with a slender, sclerotized band............ P. ledesmai (García Aldrete, González-Obando & Carrejo)

- Central sclerite of the hypandrium with median process stout, obtusely concave posteriorly ( Fig. 17 ), lateral processes blunt ended or pointed..................................................................................... 3

3. Lateral endophallic sclerites (les) widened distally ( Fig. 20 ); epiproct with a well-developed mesal, anterior bulge........ 4

- Lateral endophallic sclerites (les) not widened distally ( Figs 6 , 12 ); epiproct with variable developed mesal, anterior bulge. 5

4. Lateral endophallic sclerites with elongate distal widening ( Fig. 20 ); median process of central sclerite of the hypandrium with apically convergent lateral margins ( Fig. 17 ); postero-mesal sclerite preapically straight ( Fig. 20 )........................................................................ P. colombianus (García Aldrete, González-Obando & Carrejo)

- Lateral endophallic sclerites with short distal widening ( Fig. 19 ); central sclerite of the hypandrium with median process of non-converging lateral margins ( Fig. 15 ); postero-mesal sclerite preapically curved inward............................................................................ P. santanderinus (García Aldrete, González-Obando & Carrejo)

5. Mesal endophallic sclerite without median concavity on anterior margin ( Figs 6 and 18 )............................. 6

- Mesal endophallic sclerite with median concavity on anterior margin ( Fig. 12 , 19-21 )............................... 7

6. Central sclerite of the hypandrium with lateral processes stout, blunt ended, bearing distally a slender, outwardly curved, sclerotized apophysis ( Fig. 13 ); postero-mesal sclerites medially with continuous inner margin, smoothly rounded as illustrated ( Fig. 18 )................................................................... P. venezolanus (García Aldrete)

- Central sclerite of the hypandrium with lateral acuminate processes distally ( Fig. 5 ), a bulge on outer borders; postero-mesal sclerites medially with abruptly widened inner margin as illustrated ( Fig. 6 )........................ P. elduende n. sp.

7. Central sclerite of the hypandrium with lateral processes slender, distally acuminate ( Fig. 14 ), a bulge on outer border........................................................ P. bretanaensis (García Aldrete, González-Obando & Carrejo)

- Central sclerite of the hypandrium with lateral processes stout, blunt ended, bearing a short sclerotized and curved outward apophysis apically ( Fig. 11 )............................................................. P. pichindensis n. sp.

Figures

FIGURES 1–6. Ptiloneura elduende n. sp. Male. 1. Forewing. 2. Hindwing. 3. Front view of head. 4. Left paraproct and epiproct. 5. Hypandrium. 6. Phallosome. Scales in mm.

FIGURES 7–12. Ptiloneura pichindensis n. sp. Male. 7. Forewing. 8. Hindwing. 9. Front view of head. 10. Epiproct and right paraproct. 11. Hypandrium. 12. Phallosome. Scales in mm.

FIGURES 13–21. Central sclerite of the hypandrium and phallosome in five species of Ptiloneura. 13, 18. P. venezolanus (García-Aldrete). 14, 21. P. bretanaensis (García-Aldrete et al.). 15, 19. P. santanderinus (García-Aldrete et al.). 16. P. ledesmai (García-Aldrete et al.). 17, 20. P. colombianus (García-Aldrete et al.). (Redrawn from García Aldrete et al. 2016).