Brasineura troglophilica, Neto, Alberto Moreira Da Silva & García Aldrete, Alfonso N., 2015

Neto, Alberto Moreira Da Silva & García Aldrete, Alfonso N., 2015, A new genus in the family Ptiloneuridae (Psocodea: ‘ Psocoptera’: Psocomorpha: Epipsocetae) from Brazil, Zootaxa 3914 (2), pp. 168-174: 170-173

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Brasineura troglophilica

n. sp.

Brasineura troglophilica  n. sp.

( Figs 8–14View FIGURES 8 – 14)

Color. Body pale yellow, with brown and pale brown areas as indicated below. Compound eyes black, ocelli hyaline, with ochre centripetal crescents; head pattern ( Fig. 8View FIGURES 8 – 14); a brown area on vertex, close to each compound eye, as illustrated, also a brown band between compound eyes, below the level of the ocellar group, limited posteriorly by the postclypeus; a brown band on each gena, from lower compound eye to subgenal sulcus. Antennae and maxillary palps pale yellow, Mx 4 more pigmented distally. Tergal lobes of meso- and metathorax brown; thoracic pleura with an irregular pale brown band above the level of the coxae. Legs with coxae, trochanters and femora creamy white, tibiae and tarsomeres pale yellow. Forewings almost hyaline, as illustrated ( Fig. 9View FIGURES 8 – 14); a brown spot on confluence of Cu 2 – 1 A; veins brown. Hindwing ( Fig. 10View FIGURES 8 – 14), almost hyaline throughout, veins brown.

Structural characters. Compound eyes with interommatidial setae. Outer cusp of lacinial tip broad, with five denticles ( Fig. 11View FIGURES 8 – 14). Forewing pterostigma elongate, constricted proximally. Areola postica tall, wide basally, with apex rounded. Rs almost straight, slightly shorter than R 4 + 5, this, and R 2 + 3 slightly sinuous. M stem slightly concave proximally, then almost straight. M 6 branched, with M 6 forked, as illustrated. Hindwing Rs-M joined for a distance, Rs 2 -branched, M 4 -branched. Paraprocts ( Fig. 12View FIGURES 8 – 14) stout, broad, irregularly shaped, sensory fields with 32–33 trichobothria on basal rosettes; setae as illustrated. Epiproct ( Fig. 12View FIGURES 8 – 14) anteriorly convex, posteriorly rounded, with a field of setae along margin and a pair of large lateral setae in basal half. Hypandrium of one sclerite, anteriorly concave, with anterior border strongly sclerotized, and triangular distally, setae as illustrated ( Fig. 13View FIGURES 8 – 14). Phallosome ( Fig. 14View FIGURES 8 – 14) with side struts continuous with external parameres, these stout, posteriorly directed, distally pointed, bearing mesally a field of spines near inner edge, as illustrated. Two pairs of endophallic sclerites; anterior pair elongate, lacking a basal bridge, each sclerite independent, slender, bow-shaped, dilated distally; posterior pair basally fused to form a V-shaped structure, each arm of the V proximally slender, widening posteriorly, distally forked; this sclerotized fork forming an almost closed ring, enclosing a membrane with numerous pores.

Measurements (in mm). FW: 4510, HW: 3038, F: 1164, T: 2028, t 1: 892, t 2: 102, t 3: 137, f 1: 915, f 2: 966, Mx 4: 280, IO: 402, D: 498, d: 351, IO/d: 1.14, PO: 0.70.

Etymology. The specific name refers to the troglophilic nature of this species.

Material examined. Holotype male ( INPA). Brazil. Pará. Altamira. Caverna Abrigo do Sismógrafo (03º 17 ’ 18 ”S, 52 º 13 ’ 28 ”W). 09.iv. 2009. Bichuette, M. E., Pedroso, D. R., Pellegatti, F. F. & Scatolini, T. L. C. 1 male paratype (LES/UFSCar). Brazil. Pará. Altamira. Caverna do Abrigo do Paratizinho (03º 16 ’ 35 ”S, 52 º05’ 27 ”W) xii. 2010. Bichuette, M. E., Gallão, J. E. & Monteiro-Neto, D.


Instituto Nacional de Pesquisas da Amazonia