Peltoperlopsis spinosa, Stark & Sivec, 2007

Stark, Bill P. & Sivec, Ignac, 2007, New Species And Records Of Asian Peltoperlidae (Insecta: Plecoptera), Illiesia 3 (12), pp. 104-126 : 122

Peltoperlopsis spinosa sp. nov.

( Figs. 62-66)

Material examined. Holotype ♂ from Vietnam, Thua Thien-Hue, Bach Ma National Park near jct. Rhodendron and Five Lakes trails, 1200 m, 16 ° 11’ 10” N, 107 ° 50’ 55” E, 16 June 2000, B. Hubley, D.C.

Darling, ROM 2000531 ( ROM).

Adult habitus. Biocellate. Head yellow brown with darker spots anterolateral to ocelli and on central frons distal to M-line. Pronotum yellow brown with scattered pale rugosities ( Fig. 62). Wings transparent, veins yellow brown. Legs pale yellow brown.

66

Male. Forewing length 10.5 mm. Tergum 10 bears a dark, posteromesal U-shaped mark ( Fig. 63). Basal cercal segment ca. 1.4X long as basal width; segments 2-8 with inner marginal fringe of long thin setae; segments 9-13 bear 1-3 prominent, long, thick setae on dorsal and inner marginal surfaces ( Fig. 66). Vesicle ca. 2X wide as long ( Fig. 64). Aedeagus membranous, symmetrical and bearing sparse, thin

setal like spines in scattered ventral patches ( Fig. 65).

Female. Unknown.

Larva. Unknown.

Etymology. The species name refers to the spiny appearance of the male cerci.

Diagnosis. This species is generally similar to P. malickyi but is distinguished on the basis of the enlarged setae present on cercal segments 9-13.