Lachesilla huitoto, Manchola, Oscar Fernando Saenz, Aldrete, Alfonso Neri García & Obando, Ranulfo González, 2015

Manchola, Oscar Fernando Saenz, Aldrete, Alfonso Neri García & Obando, Ranulfo González, 2015, New species of Lachesilla Westwood in the pedicularia group (Psocodea: ‘ Psocoptera’: Lachesillidae) from the Colombian Amazonia, Zootaxa 3915 (4), pp. 510-520 : 513-517

Lachesilla huitoto n. sp.

( Figures 7 − 22 )

Diagnosis. Belonging in species group pedicularia ( García Aldrete, 1974) . Males differing from L. ilama in having the clunial apophysis longer; in having the epiproctal apophyses stouter, with a short, broad spine on the inner margin of the basal half. Differing from L. carpinteroi , in addition to the epiproct spine character, in having the epiproctal apophyses almost straight, curved distally; in having the clunial apophysis broader and in having the process resulting from the fusion of the distal ends of the claspers apically bifurcated. The females differ from L. asymmetriproctus in having the subgenital plate broad, with a pigmented area on each side of the longitudinal midline and in having the ninth sternum with a narrow transverse band. Differing from L. convexicornis in having the subgenital plate not extended posteriorly, with each lobe bearing setae only distally. Differing from L. macropudenda in having long and slender gonapophyses; in having a pigmented area on each side of the longitudinal midline of the subgenital plate, without a dark brown inner area. Differing from L. cesarcardonai in having the subgenital plate posteriorly bilobed; in having the gonapophyses straight; in having the ninth sternum with the spermapore near the border of the narrow transverse band.

Description. Male. Color (in 80% ethanol). Head brown, frontal suture dark brown, compound eyes black, ocelli hyaline, with dark brown centripetal crescents. Thorax and coxae brown. Abdomen creamy with subcuticular rings light brown. Clunium and clunial apophysis dark brown. Paraprocts brown, epiproct light brown. Forewing membranes brownish, opaque; pterostigma darker distallly. Hindwings opaque, veins brown.

Morphology. Vertex of head slightly concave ( Fig. 9 ). Tergal mesothoracic lobes prominent; precoxal bridge broad; membranous region of metapleura broad. Forewing length-width relation 2.3; pterostigma wider distally, length-width relation 2.5, Rs-M veins meeting at a point ( Fig. 20 ) or joined for a short length ( Fig. 7 ). Hindwing length-width relation 2.8; Rs-M veins fused for a length ( Fig. 8 ). Hypandrium membranous, laterally joined to claspers. Claspers well sclerotized, wider proximally, rounded, with distal ends fused to form a broadly bifurcated projection, with long setae and with two apically membranous areas with papillose surface ( Fig. 12 ). Phallosome apodeme long, slender, “T” shaped ( Fig. 12 ). Clunium with a broad apophysis, widened distally and projected over the epiproct, with posterior border straight ( Fig. 10 ) or slightly concave ( Fig. 22 ). Paraprocts of two well sclerotized pieces; a basal one with 13 trichobothria (one without basal rosette) on the sensory fields, the distal one with a short hook-like prong, truncated and with a small seta in apex ( Fig. 10 ). Epiproct broad, bilobed, connected in the middle by a membranous, setose bridge; each lobe with a long, almost straight and apically curved apophysis, projected beyond the base of the clunial apophysis in lateral view ( Fig. 11 ) and with a short, broad spine on the inner margin of the basal half ( Figs 10 , 22 ).

Measurements. (in µm). FW: 1600, HW: 1275, F: 370, T: 700, t1: 250, t2: 90, ctt1: 20, Mx4: 95, f1: 205, f2: 187, f3: 162, f4: 132, IO: 290, D: 127, d: 215, IO/d: 1.34, PO: 1.68.

Female. Color. (in 80% ethanol). Subgenital plate with a pigmented area on each side, as illustrated ( Fig. 17 ). Forewing membranes brownish, opaque, with a dark shadow along the membrane surrounding the basal half and pterostigma. Gonapophyses brown; ninth sternum opaque, with a brown transverse band. Epiproct brown with a pale central area. Paraprocts light brown, with inner margin slightly darker. Head with frontal suture brown; ocelli with brown centripetal crescents. Thorax and abdomen as in males.

Morphology. Vertex of head slightly concave ( Fig. 15 ). Tergal mesothoracic lobes prominent; precoxal bridge broad; membranous region of metapleura broad. Forewing length-width relation 2.4; pterostigma wider distally, length-width relation 2.8; Rs-M veins meeting at a point ( Fig. 21 ) or joined for a short length ( Fig. 13 ). Hindwing length-width relation 2.9; Rs-M veins fused for a length ( Fig. 14 ). Subgenital plate broad, apically bilobed, each lobe with setae distally ( Fig. 17 ). Gonapophyses long, slender with setae towards the outer margin; with a basal area slightly pigmented ( Fig. 18 ). Ninth sternum membranous, with two rounded, well sclerotized areas and with a narrow transverse band distally; spermapore round ( Fig. 18 ). Paraprocts almost rectangular, sensory fields with 10 trichobothria (one without basal rosette, Fig. 16 ). Epiproct rounded posteriorly, slightly concave anteriorly, with setal field on distal half, as illustrated ( Fig. 19 ).

Measurements. (in µm). FW: 1575, HW: 1275, F: 350, T: 660, t1: 230, t2: 87, ctt1: 19, Mx4: 97, f1: 197, f2: 170, f3: 152, f4: 115, f5: 77, f6: 70, f7: 70, f8: 70, f9: 70, f10: 70, f11: 95, IO: 280, D: 112, d: 165, IO/d: 1.69, PO: 1.46.

Specimens studied. Holotype. Male. COLOMBIA. Putumayo. Puerto Asís. Las Delicias, 00° 22’ 09.50’’ N: 76° 31’ 01.98’’ W, 264 m, 4.iii.2014. Jeferson Panche, collected with led light trap. Paratypes: two males, same data as the holotype. Two females, same data as the holotype.

Etymology. The specific name is a noun in apposition, referring to the South American Huitoto tribe that inhabits the departments of Putumayo in Colombia and Loreto in Peru.

Figures

FIGURES 7 − 12. Lachesilla huitoto n. sp. Male. 7. Forewing. 8. Hindwing. 9. Front view of head. 10. Paraprocts, epiproct and clunial apophysis. 11. Terminalia, lateral view. 12. Phallosome and claspers, ventral view. Scales in mm.

FIGURES 13 − 19. Lachesilla huitoto n. sp. Female. 13. Forewing. 14. Hindwing. 15. Front view of head. 16. Paraproct. 17. Subgenital plate. 18. Gonapophyses and ninth sternum. 19. Epiproct. Scales in mm.

FIGURES 20 − 22. Lachesilla huitoto n. sp. Male and female variations. 20. Male forewing. 21. Female forewing. 22. Male clunial apophysis and epiproct. Scales in mm.