Ptiloneura yari Carrejo, González & Panche.

Obando, Ranulfo González, Gironza, Nancy Carrejo, Panche, Jeferson & Aldrete, Alfonso Neri García, 2020, An appraisal of the genus Ptiloneura Enderlein (Insecta: Psocodea: Psocomorpha Ptiloneuridae), new species from Colombia and Peru, and a key to the males, Zootaxa 4801 (3), pp. 401-449 : 441-443

Ptiloneura yari Carrejo, González & Panche. Female

( Figs 116–121 )

Diagnosis. Related to P. bernali n. sp., with which it shares the pattern of coloration of the head, the shape of the pigmented area of the subgenital plate and the number of M veins in both fore- and hind- wings. Differing from it in having the forewing pterostigma wider in the middle, in having the epiproct wider, in having v2 with only 3-4 macrosetae and in the shape and size of the IX sternum (compare Figs 25 and 121).

Color (in 80% ethanol). Body brown to pale brown. Head pattern ( Fig. 118 ), vertex light brown; front with brown spots; two dark brown to ochre oblique bands, from the inner margin of each compound eye to the epistomal sulcus, surrounding the antennal fossae, a small band reaching the ocellar triangle. Compound eyes black, ocelli hyaline with ochre centripetal crescents. Postclypeus dark brown, with ochre converging thin bands, forming a Vshaped area. Anteclypeus brown, paler on the sides. Labrum pale brown. Genae brown. Postgenae light cream, with small brown spots. Antennae: scape and pedicel dark brown; flagellomeres light brown to pale brown, with apices cream. Maxillary palps: Mx 1-2 light brown, Mx 3-4 brown. Tergal lobes of meso and metathorax dark brown, with light brown edges. Thoracic pleura light brown with ochre areas. Legs: fore-, middle- coxae and trochanters brown; hind coxae and trochanters cream; fore- and midlle- femora brown proximally, cream distally; hind femora cream, with ochre spot anteapically; tibiae and tarsi pale brown. Wings mostly hyaline, forewing pterostigma with a large hyaline area next the lower angleo; a brown spot at the end of R2+3, a brown marginal band from R4+5 to distal end of 1A; on the band, hyaline fenestrae on each side of each vein end. Abdomen light brown to cream, with subcuticular ochre spots. Clunium light brown over the area of the epiproct. Pigmented area of subgenital U-shaped, with arms dark brown, distally pale brown. Gonapophyses dark brown, ninth sternum orange to yellowish. Epiproct and paraprocts light brown.

Morphology. Head ( Fig. 118 ) H/MxW: 1.46; compound eyes large, H/d: 3.64; IO/MxW: 0.76. Vertex at the same level as the upper border of the compound eyes; outer cusp of lacinial tips broad, with 6-7 denticles. Forewings ( Fig. 116 ) L/W: 4.34; pterostigma: lp/wp: 4.52, elongate, wider in the middle; M six-branched; areola postica: la/ha: 1.36, high, broadly triangular, apically rounded. Hindwings ( Fig. 117 ) l/w: 2.93; M two-branched. Subgenital plate ( Fig. 119 ) wide, setose, with posterior border rounded. Gonapophyses ( Fig. 121 ): v1 elongate, slender and acuminate, bearing microspicules on surface; v2+3 with a proximal slender heel, v2 with a row of 3-4 setae; distal process long, sinuous and acuminate, bearing microspicules on surface. Ninth sternum ( Fig. 121 ) distinctly pigmented, of three distinct areas; anterior one oval, middle area elliptic, posterior area trapeziform. Paraprocts ( Fig. 120 ) broadly elliptic, with long and short setae; sensory fields with 24 trichobothria on basal rosettes. Epiproct ( Fig. 120 ) triangular, wide basally, apex broadly rounded, with long and short setae, with a group of three macrosetae mesally on basal area, two postero-laterally, as illustrated.

Measurements. FW: 5675, HW: 3825, F: 1500, T: 2500, t1: 1050, t2: 116, t3: 170, ctt1: 32, f1: 1125, f2: 1200, f3: 1125, f4: 850, f5: 625, f6: 450, f7: 390, f8: 350, f9: 312, f10: 282, f11: 292, Mx4: 355, IO: 680, D: 490, d: 360, IO/d: 1.89, PO: 0.73.

Material studied. Holotype female. COLOMBIA. Caquetá, San Vicente del Caguán, Laureles, Reserva Indígena Altamira , 2º27’50.14”N: 74º55’2.06”W, 917 m. 27-28.IV.2017, J. Panche. Led light trap in forest canopy.

Etymology. The specific epithet refers to the Yari river, in the Caquetá Department, Colombia.

Figures

FIGURES 116–121. Ptiloneura yari n. sp. Female. 116. Forewing. 117. Hindwing. 118. Front view of head. 119. Subgenital plate. 120. Left paraproct and epiproct. 121. Ninth sternum and left gonapophyses. Scales in mm.