Triplocania triangularis, Neto, Alberto Moreira Da Silva, García Aldrete, Alfonso N. & Rafael, José Albertino, 2016

Neto, Alberto Moreira Da Silva, García Aldrete, Alfonso N. & Rafael, José Albertino, 2016, Twelve new species of Triplocania Roesler (Psocodea: ' Psocoptera': Ptiloneuridae), from South America, Zootaxa 4109 (3), pp. 251-283 : 279-280

Triplocania triangularis n. sp.

( Figs 124–138 )

Diagnosis. Differing from the known species of Triplocania , by having the central sclerite of the hypandrium with side triangular projections and with a triangular posterior process; the phallosome has four pairs of endophallic sclerites and a mesal, stout transverse sclerite.

Male. Color. Compound eyes black, ocelli hyaline, with ochre centripetal crescents; head pattern ( Fig. 124 ). Scape pale brown, pedicel pale yellow; f1–f2 pale yellow. Femora pale yellow; tibiae pale brown with distal ends brown; tarsomere 1 pale yellow, tarsomeres 2–3 pale brown. Forewing with an irregular, submarginal pale brown band from the distal end of the pterostigma to CuA2; a brown area almost triangular along CuA to end of CuP; a small dark brown spot at confluence of CuP-1A; a brown band along the areola postica; pterostigma almost pigmented throughout, with a clear area in the middle; veins brown, with brown areolae at setal insertions and with dark brown spots at wing margin ( Fig. 125 ). Hindwing mostly hyaline, with a small pale brown area next to CuP; veins brown, with brown spots at wing margin ( Fig. 126 ).

Morphology. Compound eyes without interommatidial setae. Outer cusp of lacinial tip broad, with five denticles ( Fig. 127 ). Forewing pterostigma wider in the middle, narrow basally; Rs convex, R2+3 and R4+5 sinuous, M stem concave proximally, then almost straight, M1, M2 and M3 sinuous, areola postica tall, with round apex, 2A not reaching the wing margin. Hindwing Rs stem convex proximally, then almost straight, R2+3 and R4+5 straight, M sinuous. Hypandrium of three sclerites, a large central sclerite, anteriorly convex, wide in the middle, with a triangular projection on each side; a posterior triangular process in the middle; lateral sclerites large, rhomboid, with setae as illustrated ( Fig. 128 ). Phallosome ( Fig. 129 ) with side struts independent, V shaped, fused posteriorly to stout external parameres, each with a field of pores mesally. Transverse mesal sclerite wide, strongly sclerotized, anteriorly concave; posterior border slightly projected in the middle, concave. Five pairs of endophallic sclerites, antero-lateral pair V shaped, with inner arms shorter than outer arms, diagonal, narrowing distally; outer arms stout, proximally wide, narrowing distally, blunt ended; antero-mesal pair rattle shaped, small, narrow anteriorly, wide posteriorly, bearing a dense field of papillae; mesal pair stout, slightly cuverd inwards, basally round, distally narrow, blunt ended; postero-lateral pair stout, sinuous, elongate, proximally wide, basally broad, narrowing posteriorly, distally curved outward; posterior pair small, broadly elliptic, parallel to the posterior inner border of the external parameres, straight anteriorly, with a row of five denticles posteriorly. Epiproct wide, almost straight anteriorly, narrowing posteriorly to round apex, three setae in mesal position, other setae as illustrated ( Fig. 130 ). Paraprocts broad, almost triangular, sensory fields with 27 trichobothria on basal rosettes, setae as illustrated ( Fig. 130 ).

Measurements (in microns): FW: 3495, HW: 2208, F: 946, T: 1414, t1: 606, t2: 72, t3: 122, f1: 476, f2: 370, Mx4: 214, IO: 435, D: 305, d: 203, IO/d: 2.14, PO: 0.66.

Female. Color. Same as in the male.

Morphology. Head and wings ( Figs 131, 132 and 133 ) as in the male. Outer cusp of lacinial tip broad, with three denticles ( Fig. 134 ). Subgenital plate broad, V shaped, pigmented area wide, setae as illustrated ( Fig. 135 ). Ninth sternum broad, with a distinct, convex anterior area, with a deep, pigmented concavity in the middle; a mesal area almost rectangular, with two well pigmented areas in the middle, with a deep cleft between them; with a curved, pigmented longitudinal line on each side of the mid line; two distinct postero-lateral, quadrate, weakly pigmented areas ( Fig. 136 ). Gonapophyses: v1 long, curved, slender, acuminate, heavily sclerotized; v2 +3 stout, with pointed proximal heel, wide proximally, with seven setae on outer lobe and three mesal-posterior setae as illustrated, distal process slender, sinuous, acuminate, with a field of microsetae ( Fig. 137 ). Epiproct triangular, setae as illustrated ( Fig. 138 ). Paraprocts broadly, semi-elliptic, sensory fields with 32 trichobothria on basal rosettes, setae as illustrated ( Fig. 138 ).

Measurements (in microns): FW: 3503, HW: 2322, F: 1094, T: 1446, t1: 572, t2: 71, t3: 175, f1: 447, f2: 396, f3: 337, Mx4: 193, IO: 440, D: 315, d: 208, IO/D: 2.11, PO: 0.66.

Material examined. Holotype male ( EPN). Ecuador. Napo. Reserva Étnica Waorani, 1Km S. Onkone Gare Camp. 220m. 11.II.1995. 0º30'10"S: 76º26' 0"W. Fogging terre firma forest. T. L. Erwin et al. Paratypes: 1 male ( INPA ). Peru. Cuzco. Cashiriari. Light [trap] 4–22.VII.2005. J. Williams. 2 females ( EPN). Same data as the holotype.

Etymology. The specific name refers to the triangular shape of the central sclerite of the hypandrium.

Figures

FIGURES 124 – 130. Triplocania triangularis n. sp. (Holotype male). 124. Front view of head. 125. Forewing. 126. Hindwing. 127. Lacinial tip. 128. Hypandrium. 129. Phallosome. 130. Clunium, right paraproct and epiproct. Scales in mm.

FIGURES 131 – 138. Triplocania triangularis n. sp. (Paratype female). 131. Front view of head. 132. Forewing. 133. Hindwing. 134. Lacinial tip 135. Subgenital plate. 136. Ninth sternum. 137. Gonapophyses. 138. Clunium, right paraproct and epiproct. Scales in mm.