Euplocania ariasi

Vinasco-Mondragón, Andrés Felipe, González-Obando, Ranulfo & García-Aldrete, Alfonso N., 2018, The species group Amabilis of the genus Euplocania Enderlein (Psocodea: Psocomorpha: Ptiloneuridae), Zootaxa 4444 (1), pp. 43-65: 45

publication ID

publication LSID

persistent identifier

treatment provided by


scientific name

Euplocania ariasi

n. sp.

Euplocania ariasi  n. sp. Male

Figs 1–6View FIGURES 1–6

Diagnosis. It is close to E. caldasi  n. sp., E. ecuatoriana  n. sp., E. lasdelicias  n. sp., E. picta New  , E. pictaoides García Aldrete  , E. rafaeli  n. sp., and E. vaupesiana  n. sp., from which it differs by the shape of the postero-lateral processes of the central sclerite of the hypandrium, and by the phallosome endophallic sclerites.

Color (in 80% ethanol) Head pattern ( Fig. 3View FIGURES 1–6). Compound eyes black, ocelli with ochre centripetal crescents. Labrum pale brown. Genae with dark brown transverse bands. Scape and pedicel pale brown. Maxillary palps brown, Mx4 distally dark brown. Forewings veins brown, with a dark brown spot at wing margin and a clear window surrounding the latter. Pterostigma dark brown ( Fig. 1View FIGURES 1–6). Hindwings hyaline, with pale brown veins, except Cu, A2 and stem of R which are brown, each vein with a brown spot at wing margin ( Fig. 2View FIGURES 1–6). Central sclerite of hypandrium pale brown, with median V-shaped dark brown area posteriorly; postero-lateral processes ochre. Epiproct damaged, paraprocts with dark brown curved band on outer border of sensory fields.

Morphology. Head ( Fig. 3View FIGURES 1–6): H/MxW: 1.51; upper border of compound eyes slightly below the level of the slightly concave vertex, H/d: 3.58; IO/MxW: 0.46; H/D: 2.29. Outer cusp of lacinial tip broad, with seven denticles. Forewings ( Fig. 1View FIGURES 1–6): L/W: 2.61. Pterostigma: lp/wp: 3.92, areola postica tall, slanted posteriorly, with rounded apex: al/ah: 1.83. Hindwings ( Fig. 2View FIGURES 1–6): l/w: 2.92. Central sclerite of hypandrium with sides almost parallel, convex anteriorly, with claw-shaped acuminate internal process on the posterior projections, postero median concavity V-shaped, strongly sclerotized, side sclerites lost ( Fig. 6View FIGURES 1–6). Phallosome ( Fig. 5View FIGURES 1–6); side struts lost; external parameres sclerotized, broad, rounded posteriorly and forked anteriorly, the two arms slender. Two pairs of endophallic sclerites and one transverse mesal sclerite; antero-median pair with a long proximal projection; mesal sclerite with two latero-posterior projections. Paraprocts ( Fig. 4View FIGURES 1–6) anteriorly wide; sensory fields with 20 trichobothria on basal rosettes

Measurements. FW: 3975, HW: 2850, F: 875, T: 1075, t1: 520, t2: 80, t3: 110, ctt1: 17, f1: 750, f2: 550, IO: 490, D: 470, d: 300, IO/d: 1.63, PO: 0.64.

Specimen studied. Holotype male. BRAZIL. Goiás, Xambioá, Rio Araguaia. 11°42’49’’S: 50°40’28’’W. 8. XII.1982. J. Arias. CDCAbout CDC light trapGoogleMaps  . INPA.

Etymology. This species is dedicated to its collector Jorge Arias, formerly a researcher at the Instituto Nacional de Pesquisas da Amâzonia, Manaus, Amazonas, Brazil.


Changdu Institute for Drug Control