Neoperla jigongshana Li & Li

Li, Weihai, Li, Shan, Feng, Guangwei & Wang, Yunbing, 2014, Species of Neoperla (Plecoptera: Perlidae) from Henan Province, China, Zootaxa 3838 (2), pp. 174-182 : 178

Neoperla jigongshana Li & Li , sp. nov.

( Figs. 3–4 )

Male. Forewing length 16.0 mm. General body color brown. Distance between ocelli as wide as diameter of the ocellus. Head brown with median dark brown area covering ocellar triangle and forward paler M-line ( Fig. 3 a); compound eyes black; antennae and mouthparts brown. Pronotum brown with lateral margins pale brown ( Fig. 3 a); wing membrane brownish, veins dark brown; legs brown, femora with proximal part slightly paler ( Fig. 3 d). Abdominal segments brownish, terminalia processes and cerci dark brown.

Terminalia. Tergum 7 with posterior margin produced into a trapezoidal process, covered with many dorsal and distal sensilla basiconica ( Figs. 3 b-c). Tergum 8 with a recurved process with small distal spines ( Fig. 3 c). Tergum 9 without patches of sensilla basiconica or long hairs. Hemitergal processes of tergum 10 strongly sclerotized and finger like, with expanded base and sharp tip ( Figs. 4 c). Aedeagal tube elongate and slender, ca. 4.3 mm long with heavily sclerotized dorsal band and an apical, elongate, finger-shaped ventral projection; apex of tube lacking Ylobes, but covered with fine spines ( Figs. 4 a-b). Aedeagal sac length about one fourth of tube, apex curved ventrally and narrowing as a nipple like structure with minute granules on most of the surface ( Figs. 3 e, 4b).

Female. Unknown.

Type material. Holotype male ( HIST): China: Henan Province, Xinyang City, Mount. Jigongshan, 31.8024 N, 114.0743 E, 2013. VI.22, Weihai Li.

Etymology. The species name refers to Mount Jigongshan, the collecting site for the holotype.

Distribution. China (Henan Province).

Diagnosis and remarks. The male of new species is characterized by an elongate aedeagal tube bearing a long single ventral lobe. It shares similar external terminalia and aedeagus with N. forcipata , as mentioned above, and N. furcostyla Li and Qin from Guangxi. In N. jigongshana , the ventral aedeagal lobe is straight and not bifurcate whereas in N. furcostyla and N. forcipata , they bear bent and bifurcate apex ( Fig. 2 B, Li et al. 2013). Neoperla jigongshana also bears similar type of aedeagus to N. longwangshana Yang and Yang, 1988 from Zhejiang Province, but in that species, the ventral lobe of aedeagal tube is very short and triangular in shape (Fig. 6, Li et al. 2013).

Figures

FIGURE 2. Neoperla baotianmana Li & Wang. a. Entire egg; b. Collar; c. Detail of the chorion; d. Chorion lid.

FIGURE 3. Neoperla jigongshana Li & Li, sp. nov., male. a. Head and pronotum, dorsal view. b. Terminalia, dorsal view. c. Terminalia, lateral view. d. Right midleg, dorsal view. d. Aedeagal sac, lateral view.

FIGURE 4. Neoperla jigongshana Li & Li, sp. nov., male. a & b. Male aedeagus, lateral views. c. Hemitergal process, dorsal.