Five new species of the genus Euplocania Enderlein (Psocodea, ‘Psocoptera’, Psocomorpha, Ptiloneuridae) from Colombia

Abstract Five new species of Euplocania from Colombia belonging in four species groups are here described and illustrated. They increase to 22 the number of species described in the genus, thirteen of which are endemic to Colombia, with one species shared with Brazil and Peru. Three new species groups of Euplocania are here diagnosed. A key to the identification of males of Colombian Euplocania is included.

Specimens collected in the framework of the project "Revisión Taxonómica y Endemismo de los Psócidos (Insecta: Psocodea: 'Psocoptera') de Areas Protegidas de Colombia", financed by Colciencias-Universidad del Valle, increase this number to 31 species, 22 of them undescribed. García Aldrete et al. (2013) and González et al. (2015) proposed several species groups in the genus. The purpose of this work is to describe and illustrate five new species that belong in one of those groups (B) and to define three additional groups that are diagnosed here. The species here described were found in natural areas of three Colombian departments, one in Valle del Cauca (western slope of the western mountain range), two in Huila (central cordillera), and two in Caquetá (eastern slope of the eastern cordillera, within the Amazon Basin).

Materials and methods
Ten males and four females were available for study. They belong to the collection of the Group of Entomological Investigations (Departamento de Biología, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Santiago de Cali, Colombia), and are deposited in the Entomological Museum of the Universidad del Valle (MUSE-NUV), Santiago de Cali, Colombia.
One male and one female of each species were dissected in 80% ethanol, and their parts (head, right wings and legs and terminalia), were mounted on slides in Canada balsam, following standard procedures. Color was recorded by placing whole specimens, before dissection, under a stereoscopic microscope, illuminated with cold, white light at 50×. Parts on Lateral projections of central sclerite of hypandrium with a blunt ended process, directed inwards, median projections separated from the base or from the distal portion (Fig. 16)  Forewings with broad, marginal, pigmented band, from cell r2+3 to vein A1 (Fig. 25). Central sclerite of hypandrium with two lateral, broad convergent projections, apically overlapping, distally denticulate (Fig. 28) ...E. laelsa sp. n. Central sclerite of hypandrium with blunt ended lateral posterior projections, median concavity U-shaped; phallosome with mesal endophallic sclerite transverse but not W-shaped (see figs 23 and 24 in New and Thornton 1988  gaitanae sp. n., described below; differing from them by having the lateral processes of the central sclerite of the hypandrium with abundant distal teeth and not bent distally inwards. Median projections separated from the basal part as in E. daguaensis (Fig. 4). Forewing with a pigmented marginal band, from cell R 3 to wing base. Female IX sternum trapeziform, slightly convex anteriorly (Fig. 11).
Description. Male. Color (in 80% ethanol). Head pattern (Fig. 3). Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Frons, postclypeus, anteclypeus, and labrum dark brown centrally, with sides pale brown. Genae brown. Antennae creamy. Mx 1-3 creamy; Mx4 creamy, brown distally. Tergal lobes of meso-and metathorax dark brown. Thoracic pleura creamy, with small brown ochre spots. Coxae of all legs brown; femora of all legs pale brown; trochanters, tibiae and tarsi of all legs brown. Forewings almost hyaline, with a pale brown-yellowish band along margin, from R 2+3 to near the wing base; veins brown, with a dark brown spot at wing margin. Pterostigma peripherally dark brown, pale brown in the middle (Fig. 1). Hindwings hyaline, veins brown, with a dark brown spot at end of R 4+5 and M 1 (Fig. 2). Abdomen creamy, with brown ochre spots. Central sclerite of hypandrium pale brown, basal and distal part of lateral processes dark brown. Epiproct and paraprocts creamy.
Female. Color. As in the male. Subgenital plate hyaline in the middle, with sides dark brown, as illustrated (Fig. 10).

Measurements
Diagnosis. Belonging in species group B, in the classification of García Aldrete et al. (2013). It is similar to E. daguaensis González, García Aldrete & Carrejo and to E. caquetaensis sp. n. It differs from them by the shape of the median and lateral processes of the central sclerite of the hypandrium and in details of phallosomes and forewings (see identification key above). Central sclerite of hypandrium wide, posteriorly with two short acuminate projections in the middle, and two lateral processes, bearing two short apical teeth, without teeth on the inner border, bent inwards (Fig. 16). Phallosome V shaped, with a large transverse mesal endophallic sclerite (Fig. 18). Forewings with a pigmented marginal band, from R 2+3 to wing base (Figs 13 and 19). Female IX sternum semioval, anteriorly concave medially, sides with narrow pigmented area bent towards the mesal line (Fig. 24).
Description. Male. Color. Head dark brown frontally, pale brown laterally (Fig.  15). Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Vertex, clypeus and labrum dark brown. Genae pale brown, with small ochre band near the antennal fossae. Antennae pale brown to brown, with apex cream. Maxillary palps brown, Mx4 distally dark brown. Tergal lobes of meso-and metathorax dark brown. Thoracic pleura creamy, with ochre and white spots. Legs brown, coxae dark brown. Forewings hyaline, with a pale brown marginal band, from R 2+3 to wing base; veins brown, with a dark brown spot at wing margin. Pterostigma dark brown (Fig. 13). Hindwings hyaline, veins brown, with a pale brown spot at wing margin (Fig. 14). Abdomen creamy, with ochre subcuticular bands. Central sclerite of hypandrium pale brown, with sides dark brown. Epiproct and paraprocts creamy.

Female.
Color. Essentially as in the male. Subgenital plate hyaline in the middle, with sides dark brown, as illustrated (Fig. 22).
Diagnosis. Belonging to the new species group Laelsa. Forewings with a broad, pigmented marginal band from R 4+5 to Cu2-1A. Pterostigma elongate, not angulated towards Rs (Fig. 25). Hypandrium of three sclerites, central one large, almost rectangular, with two stout lateral posterior processes, distally crossed, each bearing a mesal tooth on inner border, and a row of teeth distally along the outer border (Fig. 28). The sclerite above is reminiscent of the central sclerite of the hypandrium of E. reyesi García Aldrete, González & Carrejo (Group Zelayensis), but in the latter the posterior processes are smooth, the forewings are hyaline, and the phallosome is distinct, lacking a transverse mesal sclerite (Fig. 29).
Description. Male. Color (in 80% ethanol). Body pale brown, with creamy areas and brown ochre spots, as indicated below. Head frontally creamy, with ochre areas as illustrated (Fig. 27), genae ochre. Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Antennae pale brown, flagellomeres 1-4 cream, flagellomeres 5-11 pale brown proximally and cream distally. Maxillary palps brown, Mx4 with distal third dark brown. Tergal lobes of meso-and metathorax dark brown. Thorax: mesepimeron dark brown, pro-and metapleura cream, with ochre spots. Legs: fore- and middle brown; hind coxae, trochanter and femur cream, hind tibia and tarsi pale brown. Forewings with pigmented marginal band, from R 2+3 to near the wing base, veins brown, with a dark brown spot at wing margin. Pterostigma peripherally pale, brown-yellowish in the middle (Fig. 25). Hindwings hyaline, veins brown, with a pig- mented marginal band on apex and near the wing base (Fig. 26). Abdomen cream, with broad subcuticular ochre spots. Clunium and hypandrium pale brown, lateral processes of the central sclerite of hypandrium dark brown apically. Epiproct and paraprocts cream, with ochre spots; phallosome pale brown.
Measurements Female. Color. As in the male. Subgenital plate hyaline in the middle, with sides pale brown, as illustrated (Fig. 34).
Measurements. FW: 5250, HW: 3500, F: 1250, T: 2125 Etymology. This species is dedicated to the Nasa tribe, that inhabits a wide region of mountains in the departments of Huila and Caquetá. The name is a noun in apposition.

Diagnosis.
Belonging to the new species group Guentherbuchi. Forewings hyaline. Pterostigma elongate, not angulated towards Rs (Fig. 37). Hypandrium of three sclerites, central one rounded anteriorly, with two lateral, slender, elongate, acuminate posterior processes (Fig. 40). Related to E. guentherbuchi González, García Aldrete & Carrejo, differing from it by having the posterior processes of the central sclerite of the hypandrium stouter and much broader proximally. The phallosomes in both species are built on the same plan, but differ in details of the endophallic sclerites (compare Fig. 42 in this paper with fig. 50 in González-Obando et al. 2015).