Nyctiophylax (Paranyctiophylax) adaequatus Wang & Yang 1997

Zhong, Hua, Yang, Lian-Fang & Morse, John C., 2014, The genus Nyctiophylax Brauer in China (Trichoptera, Polycentropodidae), Zootaxa 3846 (2), pp. 273-284 : 279

Nyctiophylax (Paranyctiophylax) adaequatus Wang & Yang 1997

( Fig. 5 )

Nyctiophylax (Paranyctiophylax) adaequatus Wang & Yang 1997 (in Yang et al. 1997): 284–285, 287–288, fig. 6 (male). Type locality: Henan (Song-xian Co., Mt. Bai-yun-shan N34.08°, E112.05°).

Remarks. Additional field collections and laboratory identifications have brought us more specimens of this species. These specimens from other parts of China show interesting variations, possibly with a geographical cline, especially in the shape of the inferior appendages. The holotype also is redrawn here for comparison.

In each inferior appendage of the holotype, the basomesal lobe is only slightly shorter than the dorsal branch of the main body in lateral view ( Fig. 5E ), with a narrow apex and an obviously angled mesal protrusion in ventral view ( Fig. 5F ). Material from Gui-zhou shows a similar pattern. However, in a specimen from Guang-dong (southern China) the basomesal lobe is obviously shorter than the dorsal branch of the main body of each inferior appendage in lateral view (5A), with a blunt tip and the mesal projection not so distinctively angled ( Fig. 5B ). These characters are also variable individually in the same collection ( Fig. 5C ). In specimens from Qin-ling (northern China), the basomesal lobe is slightly shorter than the dorsal branch of the main body of each inferior appendage as for the holotype, but with a more acute apex and the mesal projection is not so distinctively angled in ventral view ( Fig. 5H ).

Specimens examined. Guang-dong Province : Bo-luo County: Mt. Luo-fu , unnamed stream, 400 m on trail to Shan-bei-shui, trailhead 3.2 km W of ridge of Cha-shan, N 23.3190°, E 114.0115°, alt. 290 m, 01 Jun 2004, Coll. Zhou X. and C.J. Geraci, 105 males . Gui-zhou Province : Chi-shui City , Hu-shi Town , N 28.34°, E 105.42°, Nanzhu Forest Station, Jin-sha Creek, 9 June 1995, Coll. Wang B-x. and Sun C-h., 2 males . Shaan-xi Province : Mt. Qin-ling , Tian-tai Mountain , N 33.53°, E 107.38°, National Forest Preserve , headstream of Jia-ling River, black light, alt. 1700 m, 9 June 1998, Coll. Du Y-z. and Wang M., 1 male .

Distribution. Oriental China (Guang-dong, Gui-zhou) and Oriental–Palearctic Boundary Region of China: He-nan (N34.08°, E112.05°, 1400 m), Shaan-xi (Qin-ling N33.53°, E 107.38°, 1700 m).

Figures

FIGURE 5. Nyctiophylax (Paranyctiophylax) adaequatus Wang & Yang 1997, male genitalia. A–D, specimen from Guangdong, Luo-fu Mountain: A, left lateral; B, left inferior appendage, ventral; C, left inferior appendage, ventral. D, phallus, left lateral; Da, apex of phallus, ventral. b.m.l. = basomesal setose lobe of an inferior appendage; inf.app. = inferior appendage; m.v.pro. = mesoventral process of a preanal appendage; para. = paramere; pre.app. = preanal appendage; t.IX = tergum IX; t.X = tergum X. E–F, specimen from He-nan (holotype): E, left lateral; F, ventral; G, apex of phallus, ventral. H, specimen from Qin-ling, left inferior appendage, ventral.