Cryptoperla bicornata, Mo & Liu & Wang & Li & Murányi, 2021

Mo, Raorao, Liu, Ruijun, Wang, Guoquan, Li, Weihai & Murányi, Dávid, 2021, Two new and one poorly known species of the Cryptoperla formosana species group (Plecoptera: Peltoperlidae) from China, Zootaxa 5032 (2), pp. 237-246 : 239

Cryptoperla bicornata sp. nov.

( Figs. 2a , 3 )

Adult habitus ( Figs. 2a , 3a ). General body color brown. Biocellate, distance between ocelli less than 1.5 times the diameter of the ocellus. Head brown and hairy, with a large, dark brown elliptical medial area interrupted by M-line; compound eyes black; antennae and palpi brown. Pronotum dark brown, rectangular, with distinct, symmetrical brown rugosities and a brownish posteromedial area. Wing membrane brownish, veins brown; legs brown. Abdominal segments mostly pale brown to yellowish.

Male ( Figs. 3b‒3f ). Forewing length 12.0‒13.0 mm (n=3). Hindwing 11.0‒12.0 mm. Tergum 10 posteromedi- ally with a triangular process, and rounded, hairy posterolateral portions ( Fig. 3b ). Basal cercal segment ca. 4.5 times longer than basal width, with basally sparse and apically dense fringe of long bristles along medial margin; apex of basal segment curved dorsad, swollen in lateral view, and armed with a single, stalk-less, slender and dark red spur extending to midlength of 5 th cercomere with a sharp tip ( Figs. 3c‒3f ). Vesicle of sternum 9 ca. 1.3 times longer than wide. Aedeagus ( Figs. 3c, 3e‒3f ) membranous; basoventrally with a pair of lateral horn-like processes and with a medial triangular swelling between a pair of raised lateral lobes bearing a marginal fringe of fine, brown hairs; medial portion above the basoventral processes and lobes is yellow but unarmed; dorsoapical portion is a long, naked lobe, twice longer than wide.

Female. Unknown.

Type material. Holotype: male ( HIST), China: Henan Province, Luoyang City, Luanchuan County, Long Yu Bay Scenic Area (Longyuwan), 976 m, 33.70583 N, 111.75472 E, light trap, 2019.VII.7, leg. Raorao Mo, Ruijun Liu. Paratypes: 2 males ( HIST), light trap, 2012.VIII.18, leg. Weihai Li, same locality as holotype .

Etymology. The name refers to a pair of horn-like basal processes of aedeagus. Latin “bi-” means two, and “cornu” means horn.

Distribution. China: Henan Province, eastern part of the Qinling Mts. Our specimens were collected at lights on the hotel roof located in the lower region of the Long Yu Bay Scenic Area. The hotel is surrounded by trees and there is an unnamed stream in front of it ( Fig. 6b ).

Remarks. See comments below under C. cunicidata sp. nov.

Figures

FIGURE 2. Male adult habitus, dorsal view. a. Cryptoperla bicornata sp. nov. b. Cryptoperla cunicidata sp. nov.

FIGURE 3. Cryptoperla bicornata sp. nov. (male). a. Head and pronotum, dorsal view. b. Terminalia, dorsal view. c. Terminalia and aedeagus, dorsal view. d. Cerci, dorsal view. e. Terminalia and aedeagus, ventral view. f. Terminalia and aedeagus, lateral view.

FIGURE 6. a. Aedeagus of Cryptoperla cunicidata sp. nov., ventral view. b. Type locality of C. bicornata sp. nov., Long Yu Bay Scenic Area. c. Type locality of C. cunicidata sp. nov., Nanling National Forest Park.