Perlomyia kappa, Sivec & Stark, 2012

Sivec, Ignac & Stark, Bill P., 2012, Seven New Species Of Perlomyia (Plecoptera: Leuctridae) From Japan, Illiesia 8 (7), pp. 94-103 : 99

Perlomyia kappa sp. n.

( Figs. 16-18 )

Material examined. Holotype ♂, Japan, Iwate Prefecture, Hienuki River, Oinokubo Riverside Park , 12 km above Hayachine Dam, 3 May 2002, C.D. Kerst ( PMSL).

Male. Forewing length 7 mm. General color dark brown to black. Epiproct swollen basally, slender for most of length and expanded apically in lateral aspect ( Fig. 18 ). Tergum 9 broadly excavated posteromesally ( Fig. 16 ); small projections present posterolaterally on tergum 10. Cercal apices with a long terminal spine ( Figs. 16-18 ). Paraprocts fused into a broad, thick process, rounded at the tip in lateral aspect. Sternum 9 apex broadly triangular apically in ventral aspect ( Fig. 17 ), sharply upturned in the apical half in lateral aspect. Vesicle broad near apex, strongly narrowed at base.

Female. Unknown.

Larva. Unknown.

Etymology. The species name, used as a noun in apposition, is based on the Kappa, or river goblins, of Japanese mythology.

Diagnosis. Perlomyia kappa has small knobs on tergum 10 and differs from similar Japanese species of the genus in having prominent cercal spines and an apically enlarged epiproct.

Figures

Figs. 16-18. Perlomyia kappa terminalia. 16. Male dorsal. 17. Male ventral. 18. Male lateral.