Triplocania trifida, Da Silva Neto, Alberto Moreira, Rafael, Jose Albertino & Aldrete, Alfonso N. Garcia, 2015

Da Silva Neto, Alberto Moreira, Rafael, Jose Albertino & Aldrete, Alfonso N. Garcia, 2015, New species of Triplocania Roesler (Psocodea, ' Psocoptera', Ptiloneuridae), from Brazil and Ecuador, ZooKeys 505, pp. 103-116 : 106-109

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scientific name

Triplocania trifida

sp. n.

Taxon classification Animalia Psocodea Ptiloneuridae

Triplocania trifida sp. n. Figures 27-33


Brazil, Mato Grosso: Chapada dos Guimarães, 23-30.XI.1983. A. Yamamoto leg.


Holotype male, mounted on slides; thorax in a separate microvial. Original label: Brasil. Mato Grosso. Chapada dos Guimarães. 23-30.XI.1983. A. Yamamoto. Paratypes: 1 male, Original label: Brasil. Rondonte [ Rondônia]. Ariquemes. Rio ji Paraná. 28.I.1986. 09°44'S: 61°52'W. Malaise trap. J. A. Rafael. (INPA, slides 112-113, vials 112-113).


The specific name refers to the characteristic of the hypandrium, having three posterior projections.


Differing from the known species of Triplocania , in having the central piece of the hypandrium with three posterior projections, a middle one, pointed, setose, flanked by lateral, strongly sclerotized, glabrous acuminate projections. Phallosome with a transverse, strongly sclerotized mesal bridge, biconcave anteriorly, convex posteriorly, widest in the middle, narrowing to the sides; four pairs of endophallic sclerites; external parameres distally with an elliptic papillose field.


Color. Body yellow, with ochre spots as indicated below. Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Head pattern (Fig. 27). Scape brown, pedicel pale brown, f1 anteriorly pale brown, posteriorly yellow, apex white, f2 yellow. Mx4 brown. Tergal lobes of meso and methathorax pale brown, pleura yellow; femora pale yellow, tibiae pale brown, tarsomeres 1-3 yellow. Forewing with an irregular, submarginal pale brown band from R2+3 to posterior end of areola postica, this with a small brown spot proximally, and a dark brown spot between its apex and M; a triangular brown area next to CuA, and a brown spot at confluence of CuP– 1A; pterostigma with brown bands anteriorly and posteriorly; veins brown, with brown spots at wing margin (Fig. 28). Hindwing almost hyaline, with small brown spots distally on veins M, R2+3 and R4+5; with a pale brown spot at confluence of CuP and wing margin; veins brown (Fig. 29).


As in diagnosis, plus the following: compound eyes without interommatidial setae. Outer cusp of lacinial tip broad, with five denticles (Fig. 30). Forewing pterostigma wider in the middle, narrow anteriorly; Rs convex, R2+3 almost straight proximally and concave distally, R4+5 sinuous, M stem slightly concave proximally, then almost straight, M2-M3 sinuos, areola postica wide basally, slightly slanted posteriorly; hindwing Rs almost straight, R2+3 and R4+5 straight, M sinuous. Hypandrium of three sclerites; side sclerites, large, irregular, with setae as illustrated (Fig. 31). Phallosome with side struts independent, V shaped, fused posteriorly to external parameres, these stout, with pores posteriorly. Anterior pair of endophallic sclerites elongate, sinuous, distally acuminate; a central pair, narrow, elongate, sinuous, heavily sclerotized, with anterior end blunt, posteriorly dilated, lance-shaped; a lateral pair biramous, with inner arms long, curved out, wide based, extended posteriorly and distally acuminate, and outer arms wider in the middle, narrowing at the ends, posteriorly shaped like a bird’s head; posterior pair, small, curved outwards, distally acuminate (Fig. 32). Paraprocts broad, almost triangular, sensory fields with 20-31 trichobothria on basal rosettes, setae as illustrated (Fig. 33). Epiproct trapeziform, wide anteriorly, with sides converging towards a straight posterior border, three mesal setae near anterior border, other setae as illustrated (Fig. 33).


(in microns). FW: 3804, HW: 2569, F: 947, T: 1511, t1: 643, t2: 65, t3: 125; f1: 478, f2: 308, IO: 453, D: 328, d: 219, PO: 0.67.