Epipsocus manausensis, Aldrete & Silva Neto, 2019

Aldrete, Alfonso N. García & Silva Neto, Alberto Moreira da, 2019, A new Epipsocus (Psocodea: Psocomorpha: Epipsocidae) from the Brazilian Amazonia, with supernumerary forewing venation, Iheringia, Série Zoologia (e 2019038) 109, pp. 1-3 : 1-2

Epipsocus manausensis sp. nov.

( Figs 1-9 )

urn:lsid:zoobank.org:pub:81893BF3-DD4E-4AAC-A37D-A810F567B02D

Diagnosis. Forewing with a crossvein between pterostigma and Rs. R2+3 and R4+5 forked, M 3 in the male and M 4 in the female dichotomously branched. Outer cusp of lacinial tip with a setal brush on outer posterior corner.

Male. Color (in 80% ethanol). Body pale brown. Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Forewing ( Fig. 1 ) mostly hyaline, area between C and R brown, basoradial cell brown. Pterostigma brown, veins brown, with a dark spot at wing margin, a dark area anteriorly in areola postica, between Cu2 and wing margin. Hindwings hyaline ( Fig. 2 ). Abdomen pale brown, with irregular, ochre transverse subcuticular bands, less pigmented ventrally.

Morphology. Outer cusp of lacinial tips broad, with five denticles, and a brush of setae distally on outer corner. Forewing pterostigma broadly as an escalene triangle, with a slanted backwards crossvein from the lower angle to Rs. R2+3 and R4+5 dichotomously branched, with a vein stub anteriorly, near the inner arm of the r2+3 fork; M of three primary branches, with M 3 forked, resulting in M 3a and M 3b. Areola postica low, semicircular. Hindwing as illustrated ( Fig. 2 ). Hypandrium ( Fig. 3 ) broad, setose, posteriorly straight, with a field of setae on each postero-lateral corner. Phallosome ( Fig. 3 ) with posterior projection of aedeagal arch narrow, endophallus membranous. Paraprocts ( Fig. 4 ) broad, setose as illustrated, sensory fields large, elliptic, bearing 27-28 trichobothria on basal rosettes. Epiproct ( Fig. 4 ) trapeziform, with three mesal macrosetae near anterior border, other setae as illustrated.

Measurements (in microns). FW: 2350, HW: 1796, f1: 551, f2: 477, IO: 189, D: 237, d: 188, IO/d: 1.0, PO: 0.79.

Female. Color (in 80% ethanol). Same as the male.

Morphology. Outer cusp of lacinial tip as in the male. Forewing venation ( Fig. 5 ), pterostigma and crossvein to Rs as in the male, R2+3 forked, R4+5 with three branches; M with four primary branches, with M 4 forked, resulting in M 4a and M 4b. Hindwing as in the male ( Fig. 6 ). One female without pterostigma-Rs crossvein, M with M 3 fused to M 2, R 1 and R 2 fused medium and then separated ( Fig. 7 ). Subgenital plate ( Fig. 8 ) broad, setose, with sides converging to a pointed apex, pigmented area widely concave anteriorly. Gonapophyses ( Fig. 9 ): v1 long, slender, acuminate, v2+3 anteriorly with a blunt heel, v3 a distinct, elongate lobe bearing 7-8 long setae, distal process anteriorly dilated, posteriorly slender, acuminate, bearing microsetae. Ninth sternum membranous ( Fig. 9 ), with spermapore posteriorly, surrouned by a pigmented rim. Paraprocts ( Fig. 9 ) broad, setose as illustrated, sensory fields large, elliptic, bearing 24-25 trichobothria in basal rosettes. Epiproct ( Fig. 9 ) trapeziform, with a row of setae posteriorly and three mesal macrosetae near anterior border, othar setae as illustrated.

Measurements (in microns). FW: 2448, HW: 1834, f1: 533, f2: 1834, IO: 300, D: 249, d: 159, IO/d: 1.88, PO: 0.63.

Type locality. Holotype ♂, Brazil, Amazonas: Manaus, Cd. Universitaria. January 1979, malaise trap, J. A. Rafael. Paratype ♀, same locality and collector as the holotype, 4-25.XI.1978, malaise trap. Paratype ♀, same locality and collector as the holotype. XII.1978, malaise trap, abdomen missing. Paratype ♀, same locality and collector as the holotype. January, 1979, malaise trap .

Etymology. The specific epithet refers to the type locality, Manaus, capital of state of Amazonas, Brazil.

Figures

Figs 1-4. Epipsocus manausensis sp. nov., ♂, male: 1, forewing; 2, hindwing; 3, hypandrium and phallosome; 4, posterior border of clunium, left paraproct and epiproct. Scales in mm. Figs 1, 2 to common scale.

Figs 5-9. Epipsocus manausensis sp. nov., ♀: 5, forewing; 6, hindwing; 7, Forewing venation of another female specimen; 8, subgenital plate; 9, posterior border of clunium, epiproct, right paraproct, gonapophyses and ninth sternum. Scales in mm. Figs 5, 6 to common scale.