Steleops machupicchuensis, Obando, Ranulfo González, García, Alfonso N. & Carrejo, Nancy Soraya, 2011

Obando, Ranulfo González, García, Alfonso N. & Carrejo, Nancy Soraya, 2011, New species of Steleops (Psocodea: ‘ Psocoptera’: Psocidae) from Brazil, Colombia, Mexico and Peru, Zootaxa 3139, pp. 28-54 : 38-41

Steleops machupicchuensis n. sp.

( Figs. 22−32 )

Male. Color (in 80% alcohol). Body creamy white, with dark brown areas as indicated below. Compound eyes black, ocelli hyaline, with ochre centripetal crescents, the two upper ones thicker than the lower one. Head vertex, frons and postclypeus pale brown yellowish, genae yellowish pale. An unpigmented area surrounding ocellar group, extending posteriorly towards epistomal sulcus, as illustrated ( Fig. 24 ). Postclypeus with pale brown diagonal striae. Antennae: Scape, pedicel and flagellum pale brown; maxillary palpomeres pale brown. Prothoracic coxae creamy white; meso- and metathoracic coxae pale brown; tarsomeres brown. Tergal lobes of meso- and metathorax dark brown. Fore wings almost hyaline, veins brown, with brown spots on the basal part of the wing, as illustrated: small spot on Cu, small spot at confluence of Cu-Cu1a, a bigger spot between Cu2-A, toward distal ends, and a brown basal band between A and wing margin. Hind wings hyaline, veins pale brown. Abdomen creamy, with well defined brown bands on tergum, corresponding to each segment, these bands interrupted in the pleura of each side of the abdomen, to continue ventrally, but much less pigmented. Paraprocts and epiproct creamy white. Hypandrium ochre, phallosome brown.

Morphology. Head concave at vertex, compound eyes pedunculate, slightly longer, from vertex to the distal end of labrum than the width at the lower ends of the compound eyes; H/MxW: 1.20; sides in front view almost parallel; MxW/MnW: 1.45; compound eyes elongate; C: 270 microns; antennae with long setae, about one fifth the length of f1. Fore wing ( Fig. 22 ): 2.55 times as long as the maximum width; pterostigma much wider posteriorly, L/ W: 3.0; Rs-M fused for a short length; Rs slightly curved and shorter than R 2+3-R 4+5; cell M pentagonal; areola postica trapeziform. Hind wing Rs-M fused, Rs slightly longer than the fused length; R 4+5 1.9 times as long as Rs. Hypandrium symmetric ( Fig. 25 ), with sides basally straight; distal half of each side slender, strongly sclerotized, acuminate. Central body formed by two close together, large, bean-shaped bodies, with two longitudinal, basal, acuminate projections; and a middle, tongue-shaped posterior projection, bearing an acuminate prong basally on each side, and a field of dense, short spines covering the whole surface. Phallosome ( Fig. 27 ) rhomboid, apex with a long distally rounded lobe on one side; the other side with a pointed projection, partially covered by a membrane from the rounded lobe. Clunium distinctly extended posteriorly over the area of the paraprocts-epiproct. Paraprocts ( Fig. 26 ) round, setose, sensory fields with 18−20 trichobothria in basal rosettes; mesal prong long, slender, curved at the end. Epiproct ( Figs. 26, 27 ) approximately bottle shaped in dorsal view, broad at base, extended posteriorly to form a long, distally rounded projection.

Measurements. FW: 3825, HW: 2775, F: 775, T: 1625, t1: 688, t2: 145, ctt1: 31, Mx4: 205, f1: 840, f2: 690, f3: 580, IO: 460, D: 250, d: 305, IO/d: 1.51.

Female. Color (in 80% alcohol). Same as the male. Antennae: Scape, pedicel and flagellum pale brown, maxillary palpomeres creamy white, apex of Mx4 pale brown. Fore wings with brown spots, as illustrated ( Fig. 28 ), veins brown, except M+CuA and proximal part of Cu1a, small spot at confluence of Cu-Cu1a, a bigger spot between Cu2-A, toward distal ends. Hind wings hyaline, veins creamy white, very clear or pale. Abdomen creamy white, with well defined brown bands on tergum. Epiproct, paraprocts and subgenital plate creamy white.

Morphology. Head pedunculate, slightly longer than its maximum width, at the level of the lower ends of the compound eyes; H/MxW: 1.19; somewhat triangular in front view, MxW/MnW: 1.32; compound eyes elongate; C: 285 microns; flagellum with short setae, length about the diameter of the pedicel. Fore wing 2.56 times longer than the maximum width, pterostigma much wider posteriorly, as in the males, L/W: 2.8; Rs-M fused for a short distance, shorter than in the males; Rs slightly curved and shorter than R 2+3-R 4+5; cell M and areola postica as in the males. Hind wing Rs-M fused, Rs more than twice as long as the fused length; veins R 4+5 1.7 times the length of Rs-M. Ovipositor valvulae ( Fig. 30 ): V1 long, slender, acuminate; V2 long, broad, stout, more sclerotized proximally, distally almost straight; V3 about as half the length of V2, stout, with a row of macrosetae along posterior margin, and a short triangular projection; ninth sternum broad,membranous, trianguliform, spermapore circular, surrounded by a brown oval rim ( Fig. 30 ). Subgenital plate broad, with a mesal field of setae; posterior projection short, bluntly rounded, distally broad and with short setae ( Fig. 31 ). Paraprocts trianguliform, with two rows of setae, macrosetae abundant on lateral margin, sensory fields with 20−22 trichobothria in basal rosettes. Epiproct trapeziform, apex widely rounded, with setae on lateral margin and apex.

Measurements. FW: 4050, HW: 2925, F: 850, T: 1750, t1: 700, t2: 150, ctt1: 36, Mx4: 205, f1: 870, f2: 750, f3: 620, IO: 500, D: 280, d: 330, IO/d: 1.52

Specimens studied. Holotype male. PERU. Cuzco. Machu Picchu, 13°09’48”S: 72°32’49”W. 2288 m., 9.viii.2005. Paratypes: 3 females, 2 males, same data as the holotype. On rock wall of ancient temple, together with one female of S. cuzcoensis n. sp. All specimens collected by A. N. García Aldrete. CNIN.

Etymology. The specific name refers to the type locality.

Figures

FIGURES 22 − 27. Steleops machupicchuensis n. sp. Male. 22. Fore wing and hind wing. 23. Side view of genitalia: Clunium, paraprocts-epiproct and hypandrium. 24. Front view of head. 25. Hypandrium. 26. Paraprocts and epiproct. 27. Phallosome. Scales in mm.

FIGURES 28 − 32. Steleops machupicchuensis n. sp. Female. 28. Fore wing and hind wing. 29. Front view of head. 30. Left gonapophyses and spermapore. 31. Subgenital plate. 32. Paraprocts and epiproct. Scales in mm.