Neurostigma patriciae, Reategui & Rafael & da Silva-Neto, 2025

Reategui, Natália S., Rafael, José A. & da Silva-Neto, Alberto M., 2025, Neurostigma Enderlein, 1900 (Psocodea: ‘ Psocoptera’: Epipsocidae) from Brazilian Amazon Rainforest: new species and variations in forewings, European Journal of Taxonomy 976, pp. 1-32 : 12-17

Neurostigma patriciae sp. nov.

urn:lsid:zoobank.org:act:B4EB71C0-C42A-46D0-B361-FF16AF09A333

Figs 10–13, 22

Diagnosis

The new species belongs in species group II, of Mendivil-Nieto et al. (2020). It is similar to Neurostigma angelicum sp. nov. in wing venation. It differs from the latter by having the phallosoma somewhat narrow basaly and curved inwards anteriorly, posteriorly with a slight concavity, the posterior process of the aedeagal arch long, wide, with the distal margin concave, the external margin with an abruptly long indentation, and the internal margin with a slight indentation; the endophallus with two distinctly sclerotized areas, with separate endophallic sclerites touching anteriorly, posteriorly separated by a membranous area, each of these endophallic sclerites with denticulated posterior margin with numerous small acuminate and anteriorly coiled projections giving rise to a spiral area ( Fig. 13C).

Etymology

This species is dedicated to Dr Patrícia do Rosário Reis, from the University of the State of Amazonas (UEA), in recognition of her great contribution to the teaching of science in more remote areas of Amazonas, and for her friendship and affection.

Type material

Holotype

BRAZIL • ♂; Amazonas , Manaus , Estação Experimental de Silvicultura Tropical (EEST-ZF-2); 02°35′21″ S, 60°06′55″ W; 9–24 Jan. 2018; J.A. Rafael leg.; Malaise trap; Rede de Biodiversidade de Insecta na Amazônia ( REDE BIA); INPA, INPA-PSO 000036 .

Description

Male

COLORATION. Head vertex with dark brown dotted spots ( Fig. 10), a dark brown horizontal spot between eyes and ocelli ( Fig. 10D), lateral areas of head entirely light brown ( Fig. 10E). Compound eyes black, ocelli hyaline with ochre centripetal crescents ( Fig. 10A). Scape and pedicels light brown, flagellomeres hyaline. Clypeus with diffuse brown spots ( Fig. 10D), labrum light brown, with dark brown labral sclerites ( Fig. 11A), labium with brown prementum, with palpi, paraglossas and glossa light brown ( Fig. 11B), light brown maxillary palpi without blackish contour ( Fig. 11C), mandibles hyaline with yellowish and brownish ends ( Fig. 11D–E), hyaline lacinia with a yellowish distal region ( Fig. 11F–G). Tergal lobes of meso and metathorax dark brown, thoracic pleura light brown ( Fig. 10B). Forewings with dark brown stain all over anal cell, and almost homogeneously in CuP and M+CuA cells ( Fig. 12A– B). Hindwings with light brown spots homogeneously in anal and CuP cells, with markedly brownish veins ( Fig. 12C–D). Legs with coxae, trochanters and femurs brownish, basally with blackish spots, no rounded spots medially and distally ( Fig. 12E–G), tibiae brownish without rounded spots distally, tarsomeres 1 light brown, tarsomeres 2 dark brown ( Fig. 12E–G). Abdomen light brown ( Fig. 10A).

MORPHOLOGY. Head with abundant macrosetae, more concentrated on vertex ( Fig.10D–E) compound eyes large, widely separated ( Fig. 10D–E) and laterally rounded in shape; vertex not bilobed, approximately at same level as upper edge of compound eyes ( Fig. 10D). Labium with prementum narrow, labial palpi with round shape, paraglossas with round shape, slender glossa ( Fig. 11B). Mandibles asymmetrical, elongate and with outer margin angled ( Fig. 11D–E), outer cusp of lacinial tip broad, with eight to nine denticles ( Fig. 11F–G). Forewings with many setae, especially on margins, right forewing pterostigma with three crossveins ( Fig. 12A); left forewing pterostigma with four crossveinss ( Fig. 12B). M vein before its first bifurcation, gently concave, U-shape, areola postica wide basally, slightly slanted posteriorly, apically rounded, with Cua 1 touching wing margin at a parallel point between first and second bifurcation of the vein M ( Fig. 12A–B). Hindwing R 2+3 nearly straight, M sinuous ( Fig. 12C–D). Hypandrium completely sclerotized with abundant setae, distally concave ( Fig. 13A). Posterior process of edeagal arch long, wide, with distal margin concave, external margin with abruptly long indentation, and internal margin with slight indentation; endophallus with two distinctly sclerotized areas, with separate endophallic sclerites touching anteriorly, posteriorly separated by membranous area, each of these endophallic sclerites with denticulated posterior margin with numerous small acuminate and anteriorly coiled projections giving rise to a spiral area ( Fig. 13C). Epiproct basally wide, distally concave, with field of microsetae ( Fig. 13B). Paraproct subtriangular in shape, with narrow base, extending distally, with field of microsetae towards outer margin, sensory fields with 28–29 trichobothria on basal rosettes ( Fig. 13B).

MEASUREMENTS (in μm). FW: 2924, HW: 2211, F: 704, T: 1127, t1: 460, t2: 116, MX 2: 122, MX 4: 129, IO: 445, D: 255, d: 211, PO: 0.827.