Ptiloneura castroi n. sp. (Fig. 1) urn:lsid:zoobank.org:act: FA5B33B0-07C9-4977-A47D-A7D40F9197A4 TYPE MATERIAL. — Holotype. Brazil • 1 ♂; Pará, Marabá, Serra Norte; 6°05’03.1”S, 50°10’35.5”W; XI.1982; Michael Miles leg.; Light trap; INPA. HOLOTYPE CONDITION. — Mounted on microslide. The left fore- and hind- wings, legs, antennae, maxillary palps, left lateral sclerite of the hypandrium, side struts of the phallosome and remaining body parts missing. ETYMOLOGY. — The species honors Jacinto Campos Moreira de Castro, born in the state of Pará, father of Marcelo Cutrim, for his support and fellowship. GEOGRAPHICAL RECORDS. — Known only from the type locality, Brazil, Pará state, Marabá city, Serra Norte locality on Brazilian Amazon in northern Brazil. DIAGNOSIS. — Posterior process of the central sclerite of the hypandrium stout, mid-sized, slightly concave distally; posterior side side sclerites of the hypandrium long, curved, anteriorly rounded, posteriorly dilated, curved outward, acuminate (Fig. 1E). Mesal endophallic sclerite of the phallosome transverse, with lateral posterior processes club-shaped, with inner borders denticulate (Fig. 1F). DESCRIPTION Male (holotype) Color. Compound eyes black, ocelli hyaline; head pattern (Fig. 1A). Forewings (Fig. 1B) veins brown, pterostigma brown, slender brown marginal band from M 5 to A2. Hindwings (Fig. 1C) almost hyaline, with a pale brown spot at CuP. Morphology. Outer cusp of lacinial tips broad, with six short denticles (Fig. 1D). Forewing pterostigma long (Fig. 1B), narrow proximally, wider in the middle; areola postica wide, tall, apically rounded; Rs longer than its branches, almost straight, R 2+3 almost straight with a slight distal concave curve, R 4+5 with a median convex curve; M stem concave proximally, then almost straight, with five primary branches, M 5 distally forked, resulting in M 5a and M 5b. Hindwings (Fig. 1C) Rs almost straight, R 2+3 straight, R 4+5 with a slight concavity distally; M stem concave proximally with four primary branches. Hypandrium (Fig. 1E) of five sclerites, central sclerite broad, with anterior margin concave, with field of long macrosetae on each side of the longitudinal midline, that reach or surpass the apex of the median posterior process; posterior side processes long curved outward with a triangular posterior projection; lateral sclerite irregular. Phallosome (Fig. 1F) relatively simple, external parameres proximally slender, curved inward, wider distally, with rounded apices, bearing a field of pores and a row of little teeth at the posterior margin. Three pairs of endophallic sclerites, an anterior pair long, curved inward, with rounded end; a mesal with anterior and posterior margin almost straight, laterally curved, and strong narrowing, from where it arises a posterior process, these almost straight, distally dilated; a postero-lateral pair, short, curved outward, proximally, and distally rounded, with a row of strong teeth along inner margin. Epiproct (Fig. 1G) anteriorly convex, sides converging to posterior elongate process, setae absent. Paraprocts (Fig. 1G) straight based, lateral margins converging to pointed apex, with sensory fields with 31 trichobothria on basal rosettes, setae as illustrated. Measurements (in microns). FW: 4551, HW: 3281, IO: 491, D: 536, d: 395, IO/d: 1.24, PO: 0.73.

Published as part of Cutrim, Marcelo, Silva-Neto, Alberto Moreira da, Rafael, José Albertino & García Aldrete, Alfonso Nery, 2022, The genus Ptiloneura Enderlein, 1901 (Psocodea, ' Psocoptera', Ptiloneuridae) in the Brazilian Amazon Forest and Atlantic Forest: new species, variations in forewings and a key to the species, pp. 493-501 in Zoosystema 44 (20) on pages 494-496, DOI: 10.5252/zoosystema2022v44a20, http://zenodo.org/record/7304128