Chinoperla spinata, Sivec & Stark, 2010

Sivec, Ignac & Stark, Bill P., 2010, Five New Species Of Chinoperla Zwick (Plecoptera: Perlidae) From Vietnam And Thailand, Illiesia 6 (8), pp. 62-74 : 68-69

publication ID	https://doi.org/ 10.5281/zenodo.4759667
DOI	https://doi.org/10.5281/zenodo.4779160
persistent identifier	https://treatment.plazi.org/id/8D0787D3-FFC0-FFAD-FEF4-FDF5FE7E64B3
treatment provided by	Felipe
scientific name	Chinoperla spinata
status	sp. nov.

Treatment

Chinoperla spinata View in CoL sp. n.

( Figs. 26-34 View Figs View Figs )

Material examined. Holotype ♂ from Thailand, Phrae Province, Wieng Ko Sai, Upper Nam Panjanae, 295 m, 99° 34’ N, 17° 57’ E, 21-22 April 2003, Chiang Mai University Team ( PMSL) . Paratypes: Thailand: Phrae Province, Wieng Ko Sai, Lower Nam Panjanae , 270 m, 99° 34’ N, 17° 56’ E, 20-21 February 2003, 1♀ ( PMSL). Huey Nam Ru, 1400 m, 18 April 1989, H. Malicky, 1♀ ( PMSL).

Adult habitus. Biocellate. Head dusky brown on occiput, dark brown over most of frons; M-line and callosities pale; antennae and palpi uniformly brown ( Fig. 26 View Figs ). Pronotum pale brown with darker rugosities. Legs brown, distal part of femora and proximal part of tibiae darker.

Male. Forewing length 5 mm. Dark median process of tergum 9 shaped like a goblet ( Fig. 27 View Figs ). Finger shaped hemitergal processes about 2.5 times long as basal width. Aedeagal tube poorly sclerotized; sac plump, apex bearing a dense patch of larger spines and a median, large, recurved hook ( Figs. 28-29 View Figs ); a pair of spiny lateral lobes located subapically on sac.

Female. Forewing length 11 mm. Subgenital plate scarcely produced but a prominent median notch occurs on posterior margin of sternum 8, and a brush of enlarged setae is positioned anterior to notch ( Fig. 30 View Figs ).

Egg. Tear drop shaped with long, slender collar and stalked anchor. Chorion covered with fine punctations ( Figs. 31-34 View Figs ).

Larva. Unknown.

Etymology. The species name refers to the prominent aedeagal spine of this species.

Diagnosis. The aedeagus of this species is generally similar to those of C. porntip and C. yi. It differs from the former in lacking a distinct sagittate aedeagal apex (compare Figs. 6-8 View Figs and 28-29 View Figs ), and from the latter it differs in having smaller, and more posteriorly directed, lateral lobes of the aedeagal sac (compare Figs. 6 View Figs and 39 View Figs ).