New species of Lachesilla Westwood in the pedicularia group (Psocodea: ‘ Psocoptera’: Lachesillidae) from the Colombian Amazonia Author Manchola, Oscar Fernando Saenz Author Aldrete, Alfonso Neri García Author Obando, Ranulfo González text Zootaxa 2015 3915 4 510 520 journal article 10.11646/zootaxa.3915.4.3 49cd5876-e6a2-43f8-b026-17281938f13f 1175-5326 232504 2AF12107-798E-47CC-9F99-86D02BE7C26A Key to Lachesilla species of the pedicularia group in which males have one clunial apophysis 1. Females............................................................................................ 2 -. Males............................................................................................. 6 2. Subgenital plate posteriorly rounded; ninth sternum anteriorly rounded, spermapore towards anterior margin................................................................ Lachesilla cesarcardonai García Aldrete, González & Saldaña -. Subgenital plate posteriorly bilobed; ninth sternum with a transverse pigmented area............................... 3 3. Subgenital plate and paraprocts broadly triangular; epiproct concave anteriorly; ninth sternum with broad pigmented area; spermapore small, towards anterior margin............................. Lachesilla asymmetriproctus García Aldrete -. Subgenital plate broad, with or without a pigmented area underlying the plate...................................... 4 4. Subgenital plate extended posteriorly; gonapophyses short and slender; ninth sternum narrow; epiproct concave anteriorly; without a pigmented area underlying the subgenital plate...................... Lachesilla convexicornis García Aldrete -. Subgenital plate with a broad, irregular pigmented area on each side of longitudinal midline ( Fig. 17 ); epiproct with or without a pigmented basal area................................................................................. 5 5. Gonapophyses large; ninth sternum almost rectangular; epiproct almost straight anteriorly, uniformly pigmented; with an irregular pigmented area on each side of longitudinal midline, underlying the subgenital plate................................................................................................. Lachesilla macropudenda García Aldrete -. Gonapophyses large and slender; ninth sternum membranous, with two rounded, well sclerotized areas and with a narrow transverse band distally ( Fig. 18 ); epiproct rounded posteriorly and concave anteriorly ( Fig. 19 ) Lachesilla huitoto n. sp. 6. Epiproct without apophyses; clunial apophysis short and stout; phallosome apodeme stout, branching distally, “Y” shaped..................................................................... Lachesilla macropudenda Garcia Aldrete -. Epiproct with two apophyses; phallosome apodeme “Y” or “T” shaped; claspers tips free or fused...................... 7 7. Phallosome apodeme “Y” shaped; claspers not fused distally; epiproctal apophyses almost straight and slender; clunial apophysis long, slender, apically pointed and considerably exceeding the distal margin of the epiproct.......................................................................... Lachesilla cesarcardonai García Aldrete, González & Saldaña -. Phallosome apodeme “T” shaped; claspers tips fused; clunial apophysis not exceeding the distal margin of the epiproct or shorter.............................................................................................. 8 8. Epiproctal apophyses strongly asymmetric; clunial apophysis stout, slightly curved and obtusely concave at apex, not exceeding the distal margin of the epiproct................................... Lachesilla asymmetriproctus García Aldrete -. Epiproctal apophyses symmetric; clunial apophysis variable................................................... 9 9. Epiproctal apophyses short, not extended or slightly extended beyond the base of the clunial apophysis................ 10 -. Epiproctal apophyses large considerably extended beyond the base of the clunial apophysis…....................... 12 10. Epiproctal apophyses forceps-like ( Fig. 4 ), slightly extended beyond the base of the clunial apophysis; clunial apophysis long, slender and widened at the apex; claspers fused distally, forming a projection slightly bifurcated at apex ( Fig. 6 )...................................................................................... Lachesilla putumayensis n. sp. -. Epiproctal apophyses not forceps-like, short and clunial apophysis short......................................... 11 11. Epiproct bilobed, apophyses, stout, slightly curved outward; clunial apophysis broad, stout, concave distally; claspers fused distally, forming a projection slightly bifurcated at apex....................... Lachesilla convexicornis García Aldrete -. Epiproct almost rectangular, apophyses broadly joined at base, deeply concave distally forming two acuminate arms bent outwards; clunial apophysis slender, straight at apex................................. Lachesilla williamsi García Aldrete 12. Clunial apophysis slender, wider basally, with posterior margin truncate; claspers fused distally, forming a blunt projection; epiproct bilobed, with long, acuminate apophyses.............................. Lachesilla carpinteroi García Aldrete -. Clunial apophysis stout, broad; epiproct bilobed, with long, slender apophyses; claspers fused distally, forming a projection bifurcated or acuminate at apex........................................................................ 13 13. Claspers forming an acuminate projection; clunial apophysis almost as long as wide, with posterior margin straight; epiproctal apophyses long, curved, distally acuminate...................... Lachesilla ilama García Aldrete, González & Saldaña -. Claspers forming a projection bifurcated at apex ( Fig. 12 ).; clunial apophysis longer than wide, with posterior margin straight ( Fig. 10 ) or slightly concave ( Fig. 22 ); epiproctal apophyses long, almost straight, curved at apex, with a short, broad spine on the inner margin of basal half ( Figs 10 , 22 ).............................................. Lachesilla huitoto n. sp.