Brasineura morrense, Lima & Silva-Neto & García Aldrete & Bravo, 2020

Lima, Daniel Moura, Silva-Neto, Alberto Moreira Da, García Aldrete, Alfonso N. & Bravo, Freddy, 2020, Brasineura Silva-Neto & García Aldrete (Psocodea, ‘ Psocoptera’, Ptiloneuridae) new species, new records and variation in the wing venations, Zootaxa 4819 (2), pp. 375-384 : 379

Brasineura morrense sp. n.

( Figs 15–23 )

Diagnosis (Male). Hypandrium with a posterior projection in the middle, straight, blunt ended; side struts proximally not fused, external parameres distally not forked, with two projections, one elongated, directed outwards, another short, almost rectangular, anteriorly with a small acuminate projection on the outer margin; antero-lateral pair of endophallic sclerites proximally slender, widening posteriorly, slightly curved inwards; a mesal pair elongate, touching in the middle, proximally curved outwards, acuminate, posteriorly slightly curved inwards, blunt ended.

Color (in 80% ethanol). Compound eyes black, ocelli hyaline, with ochre centripetal crescents; head pattern ( Fig. 15 ). Scape and pedicel brown, f1–f3 brown. Mx4 more pigmented distally. Femora pale brown, tibiae and tarsomeres 1–3 brown. Forewings almost hyaline, as illustrated ( Figs 16, 17 ); a small brown spot on confluence of Cu 2 –1 A; veins brown. Hindwing ( Fig. 18 ), almost hyaline throughout, veins brown.

Morphology. Compound eyes without interommatidial setae. Outer cusp of lacinial tip broad, with five denticles markedly sclerotized ( Fig. 19 ). Forewing pterostigma basally narrow, wider in the middle, narrowing posteriorly, areola postica tall, with round apex, left forewing M with four primary branches, M 4 forked, resulting in M 4a and M 4b ( Fig. 16 ), right forewing M with four primary branches, M 4 three branched, resulting in M 4a, M 4b1 and M 4b2 ( Fig. 17 , see also variation of the paratype below). Hindwing M vein concave proximally, then almost straight, R 2+3 and R 4+5 slightly sinuous ( Fig. 18 ). Hypandrium ( Fig. 20 ) straight anteriorly; one concave area on each antero-lateral corner, resulting in a pair of projections on each side, posterior process straight, blunt ended, setae as illustrated. Phallosome ( Fig. 21 ) with side struts proximally not fused, posteriorly fused to external parameres, these stout, almost rounded, with a sclerotized ring enclosing a membrane with numerous pores, partially projected out, distally with two projections, an elongated one, directed outwards, another short, almost rectangular, anteriorly with a small acuminate projection on the outer margin. Three pairs of endophallic sclerites; an antero-lateral pair proximally slender, widening posteriorly, slightly curved inwards; a mesal par elongate, touching in the middle, proximally curved outward, acuminate, posteriorly slightly curved inwards, blunt ended; lateral-mesal pair, short, proximally wide, narrowing posteriorly, curved outward, blunt ended. Paraprocts stout, broad, almost triangular, sensory fields with 30–31 trichobothria on basal rosettes, setae as illustrated ( Fig. 22 ). Epiproct semi-elliptic; a long seta mesally near each side, other setae as illustrated ( Fig. 22 ).

Measurements (in microns). FW: 3398, HW: 2336, F: 1019, T: 1623, t1: 631, t2: 58, t3: 86, f1: 776, f2: 850, Mx4: 225, IO: 246, D: 349, d: 264, PO: 0.75.

Variation of paratype. Left forewing as the holotype, right forewing with M vein four branched, with M 4 three branched, resulting in M 4a, M 4b1 and M 4b2, but with the second bifurcation not as close to the wing margin as observed in the holotype ( Fig. 23 ). Both hindwings as the holotype.

Etymology. The specific name “morrense” is a noun that applies to the natives of Morro do Chapéu, city of the Brazilian state of Bahia. By extension, it is given to this species as a noun in apposition and refers to the city of origin of this species.

Material examined. Holotype male (MZFS). BRAZIL. Bahia state, Chapada Diamantina, Morro do Chapéu, Cachoeira do Ferro doido (11°37’27.294”S, 41°00’ 2.403”W). Light trap. 25.vi.2009, Zacca, T. et al., cols . Paratype: 1 male (MZFS), same data as the holotype .

Figures

FIGURE 23. Variation in the forewing M vein in paratype of Brasineura morrense sp. n. (23) Right forewing. Scales in mm.

FIGURES 15–22. Brasineura morrense sp. n. (Holotype male). (15) Front view of head. (16) Left forewing. (17) Right forewing. (18) Hindwing. (19) Lacinial tip. (20) Hypandrium. (21) Phallosome. (22) Clunium, right paraproct and epiproct. Scales in mm.