Zygoneura (Pharetratula) longa Zhang & Wu, 2010

Shah, Bismillah, Shao, Yisa, Du, Hong, Wang, Yang & Huang, Junhao, 2024, Taxonomy and DNA barcoding of the dark-winged fungus gnat genus Zygoneura Meigen (Diptera: Sciaridae) from China, with revision of the type materials, Zootaxa 5496 (3), pp. 377-400 : 388-389

Zygoneura (Pharetratula) longa Zhang & Wu, 2010

( Figs 8A–D )

Zygoneura (Pharetratula) longa Zhang & Wu, 2010 [ Zhang et al. (2010): 43 ; Shin et al. (2014): 562; Huang et al. (2020): 360].

Type locality. China: Zhejiang Province, Lishui .

Type Material. Holotype (1♂) in Coll. ZAFU ( China).

Material examined. Holotype [ SM00948 ], 1♂, Zhejiang Province, Lishui, Taishun, Mt. Wuyanling nature reserve , 28°01′ N, 120°38′ E, 600 m a.s.l. 04.VIII.2005, leg. Yi-Ping Wang.

Additional description. Male. Head brown, antenna and maxillary palpus stramineous. Eye bridge four facets wide. Face with 6–8 setae. Maxillary palpus with three segments ( Fig. 8B ). Fourth antennal flagellomere 2.5 times as long as wide, body with mostly short setae and with a row of clearly elongated setae near the neck ( Fig. 8D ). Thorax pale brown. Wing membrane without macrotrichia. M 1, M 2, CuA 1, CuA 2, r-m with no setae. stM faded in the specimen. Legs ( Fig. 8A ) stramineous. Tarsal claws three-toothed. Hypopygium ( Fig. 8C ) yellowish brown. Gonocoxae nearly as long as or slightly longer than gonostyli, ventral medial margin with two distinct groups of setae. Gonostylus ( Fig. 8C ) slender, with a sub-apical and a sub-basal megasetae, inner margin slightly concave, with short fine setae. Tegmen membranous, higher than wide.Aedeagus short, slender ( Fig. 8C ). For detailed description, see Zhang et al. (2010).

Remarks. Only holotype seen, 2♂♂ paratypes [SM00129, SM00507] on loan and not examined in this study. This species resembles Z. (Pharetratula) subdivergens (Mohrig & Mamaev) and Z. (Pharetratula) divergens (Mamaev) in the subapical and sub-basal megasetae. However, it can easily be distinguished by the distinctly more slender gonostylus ( Fig. 8C ) and two unequal megasetae ( Zhang et al. 2010).

Distribution. China: Zhejiang, Fujian ( Zhang et al. 2010).

Figures

FIGURE 8. Zygoneura (Pharetratula) longa Zhang & Wu. i: slide, front side; ii: slide, flip side; A: habitus, lateral view; B: head, frontal view; C: hypopygium, ventral view; D: fourth antennal flagellomere.