Loneura occidentalis,

Obando, Ranulfo González, Gironza, Nancy Carrejo, Panche, Jeferson & Aldrete, Alfonso Neri García, 2020, The genus Loneura Navás (Insecta: Psocodea: ‘ Psocoptera’: Ptiloneuridae) in Colombia, description of new species and key for identification, Zootaxa 4802 (2), pp. 201-249: 226-229

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Loneura occidentalis

n. sp.

Loneura occidentalis  n. sp.

( Figs 76–87View FIGURES 76–81View FIGURES 82–87)

Diagnosis. Similar to L. altaquerensis  , from which it differs in having the areola postica distinctly narrower, in having the posterior processes of the hypandrium distally dilated, and in having the mesal processes of the hypandrium slender ( Fig. 79View FIGURES 76–81). Also the endophallic sclerites are quite distinct in both species (compare Figs 33View FIGURES 29–33 and 81View FIGURES 76–81).

Male. Color. Body light brown, with brown spots as indicated below. Head light brown, pattern ( Fig. 78View FIGURES 76–81), an ochre band from each compound eye to the epistomal sulcus; genae dark brown; postgenae light brown. Compound eyes black, ocelli hyaline, with ochre centripetal crescents. Postclypeus light brown, with ochre V-shaped area; anteclypeus and labrum light brown. Maxillary palps light brown, Mx4 dark brown distally. Antennae light brown, flagellomeres 1–3 with apices cream. Thorax pale brown, pronotum and tergal lobes of meso- and metathorax pale brown, propleura with brown spots. Legs light brown, tarsi 2–3 dark brown, femora with distal brown spots. Wings hyaline ( Figs 76, 77View FIGURES 76–81). Forewing pterostigma hyaline, with proximal and distal brown bands ( Fig. 76View FIGURES 76–81); veins light brown, with brown areolae in setal insertions; dark brown spots on vein ends at wing margin. Hindwing ( Fig. 77View FIGURES 76–81) veins with brown spots at wing margin. Abdomen light brown, clunium pale brown. Hypandrium pale brown; epiproct and paraprocts light brown. Phallosome brown, with endophallic sclerites dark brown.

Morphology. Head ( Fig. 78View FIGURES 76–81): H/MxW: 1.44; H/d: 3.59; IO/MxW: 0.74. Vertex at the same level as the upper border of the compound eyes. Outer cusp of lacinial tips broad, with four short and widely rounded denticles. Mx4/ Mx2: 1.44. Forewings ( Fig. 76View FIGURES 76–81): L/W: 2.57. Pterostigma: lp/wp: 3.98, areola postica tall, narrow, apically rounded: la/ha: 1.17, R4+5 sinuous, M six-branched, M6 forked. Hindwings ( Fig. 77View FIGURES 76–81): l/w: 2.97; M two-branched. Hypandrium ( Fig. 79View FIGURES 76–81), posterior processes constricted in the middle, distally dilated; phallosome Y-shaped anteriorly, side struts slender; external parameres laminar, apex rounded, bearing pores and sclerotized short teeth ( Fig. 81View FIGURES 76–81); four pairs of endophallic sclerites, anterior pair transverse, joined to elongated, straight and thick lateral sclerites, directed inwards, converging posteriorly, internal sclerites wide distally; mesal pair anteriorly wide, distally curved outwards; postero-mesal sclerites laminar, anteriorly broad, narrowing posteriorly, curved, with two teeth apically. Paraprocts ( Fig. 80View FIGURES 76–81) robust, almost triangular, with distal setal field and macrosetae as illustrated; sensory fields with 28 trichobothria on basal rosettes. Epiproct ( Fig. 80View FIGURES 76–81) semioval, with short and long setae, two lateral macrosetae, a setal field on posterior border and a posterior field of microspicules.

Measurements. FW: 4175, HW: 2950, F: 975, T: 1717, t1: 762, t2: 90, t3: 130, ctt1: 24, f1: 700, f2: 575, f3: 487, f4: 432, f5: 275, f6: 262, f7: 225, f8: 175, f9: 162, f10: 137, f11: 175, Mx4: 260, IO: 450, D: 340, d: 245, IO/d: 1.84, PO: 0.72.

Female. Color. Body, head, legs, wings, epiproct and paraprocts as in the males. Subgenital plate cream, pigmented area pale brown, with a dark brown spot anteriorly on each side ( Fig. 85View FIGURES 82–87). Gonapophyses light brown, IX sternum yellowish.

Morphology. Head ( Fig. 84View FIGURES 82–87) H/MxW: 1.73; compound eyes large, H/d: 3.96; IO/MxW: 0.93. Vertex slightly above the level of the upper border of the compound eyes; outer cusp of lacinial tips broad, with four short and widely rounded denticles. Mx4/Mx2: 1.45. Forewings ( Fig. 82View FIGURES 82–87) L/W: 2.46; pterostigma: lp/wp: 4.44, elongate, wider in the middle; M six branched, M6 forked; areola postica: la/ha: 1.22, tall, broadly triangular, apically rounded. Hindwings ( Fig. 83View FIGURES 82–87) l/w: 2.88; M two branched. Subgenital plate ( Fig. 85View FIGURES 82–87) wide, setose, with posterior border angled. Gonapophyses ( Fig. 87View FIGURES 82–87): v1 elongate, slender and acuminate; v2+3 with a proximal slender heel, v2 with a row of 8–9 macrosetae; distal process long, sinuous and acuminate, bearing microspicules on distal surface. Ninth sternum ( Fig. 87View FIGURES 82–87) distinctly pigmented, suboval, with lateral constriction, posteriorly with two short separate processes of rounded apices. Paraprocts ( Fig. 86View FIGURES 82–87) triangular, with long and short setae posteriorly; sensory fields with 27 trichobothria on basal rosettes. Epiproct ( Fig. 86View FIGURES 82–87) triangular, wide basally, with long and short setae as illustrated.

Measurements. FW: 4175, HW: 3000, F: 1000, T: 1775, t1: 800, t2: 90, t3: 137, ctt1: 23, f1: 700, f2: 575, f3: 500, Mx4: 290, IO: 510, D: 340, d: 240, IO/d: 2.13, PO: 0.71.

Material studied. Holotype male. COLOMBIA. Risaralda. Pueblo Rico. Río Negro Natural Municipal Park, Bocatoma , 05°12’28.1’’N: 76°02’31.5’’W, 1617 m. 14–15.VII.2015. Led light trap in forest canopy. R. González, O. Saenz, N. Carrejo and N. Calderón. MUSENUV slide code 29320GoogleMaps  . Paratypes: 1 female, same data as the holotypeGoogleMaps  . 1 female, Valle del Cauca, Dagua, El Queremal, 3°31’20.0”N: 76°43’38.7”W, 1383 m. 16.IX.2012. Beating vegetation. R. González. MUSENUV slide code 29321GoogleMaps  .

Etymology. The specific epithet refers to the area of distribution of this species, in western Colombia.


Departamento de Geologia, Universidad de Chile