Clematoscenea yunnanica Li, 2002

Liu, Luxi, Li, Fasheng & Liu, Zhiqi, 2013, A new species from southwestern China of Clematoscenea (Psocoptera: Psocidae), with a key to known species, Zootaxa 3666 (3), pp. 382-388 : 386

Clematoscenea yunnanica Li, 2002

Male. Coloration (in alcohol). Body generally brown. Compound eyes grayish black; ocelli pale, with grayish black ocellar field. Rest of head creamy brown with dark brown markings. Antennae dark brown except scape, pedicel and first flagellar segment yellowish. Maxillary palpus dark brown with distal segment darker. Thorax dark brown, yellowish along sutures. Legs yellowish with distal part of tibiae and tarsi dark brown. Wings ( Fig. 2 ): fore wing hyaline with brown markings: a band from hind corner of pterostigma to vein M+Cu1a, markings in middle and at distal third of cell R5; pterostigma dark brown. Hind wing hyaline, veins brown. Abdominal segments yellowish with brown markings.

Morphology. Head inverted triangular, with epicranial suture convex. Compound eyes ovoid. Antennae longer than fore wing. Fore wing membranous and glabrous; Sc ending free in membrane, Rs and M connected by a crossvein; pterostigma triangular with apex moderately rounded; distal closure of discoidal cell slight concave; areola postica with very narrow apex, vein M3 paralleled to Cu1a; radial fork branches diverge at an angle less than90°. Hind wing without marginal setae between R2+3 and R4+5. Abdomen ovoid. Phallosome (Fig. 9&10) a closed frame invaginated subapically, with broad posterior margin concave medially. Hypandrium (Figs. 11&12) upturned distally and laterally, with posterior margin emarginate deeply. Clunium (Fig. 13) with posterior margin convex medially and invaginated bilaterally. Epiproct (Fig. 13) round, unsclerotized medially; paraproct oblong, with slender apical spine, sensory field with about 36 trichobothria.

Measurements. Bw: 6542, B: 3604, FW: 5307, HW: 3617, F: 1173, T: 2267, t1: 643, t2: 261, f1: 1467, f2: 1567, f3: 1533, Mx4: 242, IO/d: 2.095.

Female. Coloration (in alcohol). Same as the male. Wings ( Fig. 3 ): Fore wing hyaline with brown markings: a band from middle of cell R to middle of vein 1A, a broad band from hind corner of pterostigma to distal corner of discoidal cell, a band from hind corner of pterostigma to radial forks leading to distal two-thirds of cell R5 with a hyaline spot submarginally, markings along posterior margin of areola postica and at entire cell M3, markings bordering cell M1.

Morphology. Head same as the male. Fore wing: Sc ending free in membrane, pterostigma with moderate hind angle, Rs-M meeting at a point, distal closure of discoidal cell slight concave, areola postica with narrow apex, vein M3 parallel to Cu1a, radial fork branches diverge at an angle less than90°. Hind wing without marginal setae between R2+3 and R4+5. Abdomen ovoid. Subgenital plate (Fig. 14) with egg guide short and round apically, pigmented arms forming roughly T-shaped regions expanded anterolaterally, with membranous regions distromedially. Gonapophyses (Fig. 15): ventral valve slender; dorsal valve broad and pointed apically, with a field of short setae ventrolaterally; outer valve elliptical, with posterior lobe. Epiproct triangular, distal margin moderately round; paraproct triangular, sensory field with about 43 trichobothria.

Measurements. Bw: 8755, B: 4642, FW: 6583, HW: 4427, F: 1272, T: 2583, t1: 723, t2: 283, f1: 1727, f2: 1873, f3: 1623, Mx4: 271, IO/d: 3.455.

Material examined. CHINA: 1 male and 4 females, Yunnan Province, Ruili C., Mengxiu To., 5.v.1981, Chikun Yang (CAU); 1 male, same location, 2.v.1981, Fasheng Li (CAU).

Distribution. China (Yunnan).

Remarks. The species is closely related to Clematoscenea macalpinei Smithers & Thornton , based on similarity of fore wing pattern, however, the two species can be distinguished by the genitalic characters (Li, 2002). The species shows sexual dimorphism in wing pattern as does C. dimorpha Smithers & Thornton.

Figures

FIGURES 1 – 3. Clematoscenea species, wings. (1) spinosus sp. n. male. (2) yunnanica male. (3) yunnanica female.