Epiphragma (Epiphragma) henanensis, Zhang, Bing, Mao, Meng & Yang, Ding, 2019

Zhang, Bing, Mao, Meng & Yang, Ding, 2019, New species of the subgenus Epiphragma Osten Sacken from China (Diptera, Limoniidae), ZooKeys 876, pp. 39-54 : 39

Epiphragma (Epiphragma) henanensis sp. nov Figs 3 , 4 , 9 , 13 , 22-27

Diagnosis.

Generally brown with gray pruinosity. Vertex with one median brown line. Femora yellow with two brown rings, first at basal 2/3, second at before tip, longer than yellow tip. Wing brownish hyaline with conspicuous brown pattern, chiefly spotted, without narrow dark brown margin. Origin of Rs obtuse and sharp with long spur; m-cu at basal 1/2 of cell dm. Interbase with long and slender rod beyond base, almost as long as gonocoxite, apex with sharp point, whole slender rod finger-shaped. Aedeagus 1/2 as long as gonocoxite, sword-tip shaped.

Description.

Male. (n = 27): Body length 8.5-10.5 mm, wing length 9.6-12.0 mm, antenna length 1.2-1.8 mm. Head ( Figs 3 , 9 ). Brownish yellow. Vertex with one brown median line. One median tubercle between eyes. Setae on head black. Scape and pedicel dark brown, flagellum 13-segmented with two basal segments fused, fusion-segment yellow, succeeding segments dark brown, flagellomeres cylindrical, apical segments elongate, with longer verticils. Proboscis brownish yellow with black setae; palpus black with black setae.

Thorax ( Figs 3 , 9 ). Generally dark brown with pale gray pruinosity. Pronotum brown with one brownish yellow stripe. Prescutum brownish with four dark brown stripes, intermediate pair long, with lateral, humeral and anterior parts brown. Scutum and scutellum brown. Mediotergite black brown. Pleura brown, variegated by dark brown areas. Setae on thorax black brown. Coxae pale brown; trochanters brownish yellow; femora yellow with two brown rings, first at basal 2/3, second near tip, longer than yellow tip; tibiae brownish yellow with one spur; tarsi brownish yellow with bright yellow tip. Setae on legs black brown. Wing ( Figs 3 , 13 ). Brownish hyaline with conspicuous brown pattern, chiefly spotted, without narrow dark brown margin. Base of wing brown, connected with two large ocellate circles with flattened tips; one circle along cord connected with second circle, each tip of vein with brown spot. Stigma solidly dark brown. Origin of Rs obtuse and sharp with long spur; R2+3+4 longer than R2+3; m-cu at basal 1/2 of cell dm. Halter 1.1-1.6 mm long, brownish black except base of stem yellow and apex of knob brownish yellow. Setae on wings brownish yellow.

Abdomen ( Fig. 3 ). Tergites brown with median brownish stripe, both sides with black brown lines. Sternites brownish yellow. Last three segments black brown. Setae on abdomen black. Hypopygium ( Figs 22-27 ). Posterior margin of tergite 9 ( Figs 22 , 25 , 26 ) with subtrigonal lobe on each side of median V-shaped notch. Tip of outer gonostylus ( Figs 23 , 25-27 ) abruptly slender, curved into spine. Inner gonostylus ( Figs 24-27 ) apically obtuse with setae. Interbase ( Figs 26 , 27 ) with long and slender rod beyond base, almost as long as gonocoxite, apex with sharp point, whole slender rod finger-shaped. Aedeagus ( Figs 26 , 27 ) half as long as gonocoxite, sword-tip shaped.

Female. (n = 57): Body length 8.6-12.0 mm, wing length 9.5-12.3 mm, antenna length 1.2-1.8 mm. Similar to male. Cerci reddish brown; hypovalves reddish yellow ( Fig. 4 ).

Type Material.

Holotype male (CAU), China: Henan, Nanyang, Neixiang, Baotianman, 2004.VII.22, Kuiyan Zhang. Paratypes: 1 female (CAU), China: Shaanxi, Foping, Xigou, 2006.VII.27, Yajun Zhu; 2 females (CAU), China: Henan, Nanyang, Neixiang, Baotianman, 2004.VII.22, Hui Dong; 1 female (CAU), China: Henan, Nanyang, Neixiang, Baotianman, 2004.VII.23, Hui Dong; 1 female (CAU), China: Henan, Nanyang, Neixiang, Baotianman, 2008.VIII.10, Ding Yang; 1 female (CAU), China: Henan, Nanyang, Neixiang, Baotianman, 2008.VIII.11, Xingyue; 1 female (CAU), China: Hubei, Shennongjia, Liujiawuchang, 2007.VII.30, Qifei Liu (light trap); 1 female (CAU), China: Hubei, Shennongjia, Liujiawuchang, 2007.VII.31, Qifei Liu (light trap); 1 female (CAU), China: Hubei, Shennongjia, Ping Qian, 2007.VII.25, Qifei Liu (light trap); 1 female (CAU), China: Hubei, Shennongjia, Dalongtan, 2009.VI.27, Qifei Liu (light trap); 2 males, 1 female (CAU), China: Hubei, Shennongjia, Guanmenshan, 2009.VII.2, Qifei Liu (light trap); 20 males, 29 females (CAU), China: Hubei, Shennongjia, Qiangjiaping, 2009.VII.4, Qifei Liu (light trap); 1 male, 2 females (CAU), China: Hubei, Shennongjia, Qiangjiaping, 2009.VII.4, Liang Liang (light trap); 2 males (CAU), China: Hubei, Shennongjia, Caiqi, 2009.VII.14, Qifei Liu (light trap); 1 female (CAU), China: Hubei, Shennongjia, Caiqi, 2009.VII.14, Liang Liang (light trap); 1 male, 13 females (CAU), China: Hubei, Shennongjia, Yinyuhe, 2009.VII.18, Qifei Liu (light trap); 1 female (CAU), China: Hubei, Shennongjia, Yinyuhe, 2009.VII.18, Liang Liang (light trap).

Distribution.

China (Henan, Shaanxi, Hubei).

Etymology.

The species is named after the type locality Henan.

Remarks.

This new species is somewhat similar to E. (E.) elongatum Mao & Yang, 2009 from China (Yunnan) in having a similar shape of the hypopygium, but it can be separated from the latter by the wing pattern without narrow dark brown margin, the origin of Rs with a long spur, and m-cu at basal 1/2 of cell dm. In E. (E.) elongatum , the pattern of the wing has a narrow dark brown margin; the origin of Rs has a short spur; and m-cu is at basal 1/4 of cell dm ( Mao and Yang 2009).

Figures

Figures 1 - 6. 1, 2 Epiphragma (Epiphragma) acuminatum sp. nov. 3, 4 Epiphragma (Epiphragma) henanensis sp. nov. 5, 6 Epiphragma (Epiphragma) longitubum sp. nov. 1, 3, 5 male habitus, lateral view 2, 4, 6 female habitus, lateral view. Scale bars: 1 mm.

Figures 8 - 11. Head and thorax (male). dorsal view. 8 Epiphragma (Epiphragma) acuminatum sp. nov. 9 Epiphragma (Epiphragma) henanensis sp. nov. 10 Epiphragma (Epiphragma) insigne (van der Wulp, 1878) 11 Epiphragma (Epiphragma) longitubum sp. nov. Scale bars: 1 mm.

Figures 12 - 15. Wing (male). 12 Epiphragma (Epiphragma) acuminatum sp. nov. 13 Epiphragma (Epiphragma) henanensis sp. nov. 14 Epiphragma (Epiphragma) insigne (van der Wulp, 1878) 15 Epiphragma (Epiphragma) longitubum sp. nov. Scale bars: 1 mm.

Figures 22 - 27. Epiphragma (Epiphragma) henanensis sp. nov. 22 Ninth tergite, dorsal view 23 outer gonostylus, lateral view 24 inner gonostylus, lateral view 25 hypopygium, lateral view 26 hypopygium, dorsal view 27 hypopygium, ventral view. Scale bars: 0.1 mm.