Neochauliodes sinensis (Walker)

Liu, Xingyue, Hayashi, Fumio & Yang, Ding, 2007, Revision of the Neochauliodes sinensis species-group (Megaloptera: Corydalidae: Chauliodinae), Zootaxa 1511 (1), pp. 29-54 : 46-48

Neochauliodes sinensis (Walker)

( Figs. 8 , 36–39 , 43 )

Chauliodes sinensis Walker, 1853 . Cat. Brit. Mus. Neur., p. 199. Type locality: China.

Neochauliodes sinensis ( Walker, 1853) : Weele (1909).

Diagnosis. Head pale brown to brown; pronotum yellowish brown, usually with pair of brown vittae on lateral margins; wing hyaline with brownish marks, median transverse band narrow, sometimes broken, but usually extending to 1A; male tenth sternum in lateral view much wider medially with a blunt tip.

Male. Body length 19–34 mm; forewing length 25–37 mm, hindwing length 23–32 mm.

Head pale brown to brown. Compound eyes brown, ocelli yellow with black inner margin. Antenna dark. Mouthparts yellowish brown, with mandibles reddish brown on distal half.

Prothorax yellowish brown, dorsally with pair of brown vittae on lateral margins; meso– and metathorax dark brown with each centre yellowish brown. Legs dark with short, dense, brownish setae; coxae, trochanter, and femora sometimes much paler, tarsal claws dark red. Wings hyaline with brownish marks; pterostigma long, pale yellow; costal area with a long brown stripe before pterostigma. Forewing ( Fig. 8 ) proximal marks with a few small spots and sometimes connected with each other; median transverse band narrow, extending to 1A; distal marks much paler, sometimes forming short, transverse bands; forewing costal area with one brown mark on proximal 1/3. Hindwing similarly marked, but with proximal half hyaline; median transverse band extending to Cu. Veins yellowish brown with costal crossveins dark. Rs four–branched, R 2 distally three–branched; three crossveins between R 1 and Rs; M two–branched; 1A two–branched.

Abdomen dark. Tenth tergum ( Figs. 36, 38 ) in lateral view subquadrate with rounded distal margin; in dorsal view strongly inflated distally. Tenth sternum ( Figs. 36–37 ) strongly sclerotized; in ventral view triangular, with proximal margin arcuately incised, and with tip rounded and slightly incised medially; in lateral view slightly curved dorsad, distal half much wider with blunt tip

Female. Body length 30–32 mm; forewing length 36–41 mm, hindwing length 32–37 mm.

Eighth sternum subtrapezoidal in lateral view, with distal margin strongly produced posteriorly. Tenth tergum ( Fig. 39 ) short and thick, obliquely directed dorsad, with dorsodistal corner posteriorly produced. Gonocoxite ( Fig. 39 ) membranous, subquadrate, vertically directed dorsad.

Type material. Lectotype ♂, CHINA: North China without detailed data ( NHM).

Other specimens examined. CHINA: ♂, Zhejiang: Mt. Tianmushan, Longfengjian , 27.VII.1998, X. Jiang ( CAU) ; ♂, Zhejiang: Jinhua, 1980 ( CAU) ; ♀, Zhejiang: Mt. Tianmushan , 2. VI.1957, F. Li ( CAU) ; ♂, Zhejiang: Mt. Tianmushan, Chanyuansi , 29.VII.1957, C. Yang ( CAU) ; 3 ♂ 2 ♀, Zhejiang: Mt. Tianmushan , 21.VII.1973, P. Yu ( CAU) ; 2 ♂ ♀, Zhejiang: Mt. Tianmushan , 24.VII.1973, P. Yu ( CAU) ; 3 ♂, Zhejiang: Mt. Tianmushan , 31.VII.1973, P. Yu ( CAU) ; ♂, Zhejiang: Lishui , 21. V.1982 ( CAU) ; 2 ♂, Zhejiang: Wenzhou, Wuyanling , 5.VIII.2005, Y. Liu ( CAU) ; ♀, Zhejiang: Mt. Tianmushan , 24. VI.1957, L. Feng ( CAU) ; 8 ♂, Zhejiang: Anji, Mt. Longwangshan , 27.VII.1996, H. Wu ( CAU) ; ♂, Zhejiang: Mt. Tianmushan , 14/ 15.VII.1998, H. Wu ( CAU) ; ♂, Zhejiang: Mt. Tianmushan , 21/ 22.VII.1998, M. Zhao ( CAU) ; 2 ♀, Zhejiang: Huangyan , 28.VIII.1962, B. Zhang ( IZCAS) ; 2 ♂, Zhejiang: Western Mt. Tianmushan , 28.VII.1972 ( IZCAS) ; ♂, Zhejiang: Western Mt. Tianmushan , VIII.1981 ( IZCAS) ; ♂ ♀, Zhejiang: Hangzhou , 23. V.1976 ( IZCAS) ; 2 ♂, Zhejiang: Hangzhou , 28. V.1976, H. Yin ( IZCAS) ; ♂, Zhejiang: Hangzhou , 13. V.1954 ( IZCAS) ; 2 ♂ 5 ♀, Zhejiang, 7/ 16. VI.1931 ( IZCAS) ; 3 ♂, Guangxi: Tianlin, Langping , 4. VI.2002, X. Yang ( CAU) ; ♂, Guangxi: Huangping, Hongtan , 14. VI.1963, C. Yang ( CAU) ; ♂, Guangxi: Huaping, Tianpingshan , 5. VI.1963, C. Yang ( CAU) ; ♂, Guangxi: Guilin, Yanshan , 31. V.1963, C. Yang ( CAU) ; ♂, Fujian: Mt. Wuyishan, Sangang , 6.VIII.1986, M. Xie ( CAU) ; ♀, Fujian: Jianyang, Dazhulan , 24.VII.1948, X. Zhao ( CAU) ; ♀, Fujian: Mt. Wuyishan, Sangang , 29. VI.1979, C. Yang ( CAU) ; ♀, Fujian: Mt. Wuyishan , 4.VIII.1986, N. Chen ( CAU) ; ♂, Hunan: Dayong, Zhangjiajie , 1100 m, 27.VII.1985, Y. Xu ( CAU) ; ♂, Anhui: Mt. Huangshan , 2.VIII.1983 ( CAU) ; 3 ♂, Guangdong: Shixing, Chebaling , 500 m, 22.IV.1991, F. Li ( CAU) ; ♂ ♀, Hubei: Shennongjia , 23. VI.1984, C. Yang ( CAU) ; ♂, Hubei: Tongshan , 14. VI.1984, W. Deng ( CAU) ; 4 ♀, Hubei: Zigui, Jiulingtou , 100–150 m, 11/ 13. VI.1993, J. Yao & D. Huang ( IZCAS) ; ♀, Hubei: Xingshan, Longmenhe , 1350 m, 14.VII.1993, B. Sun ( IZCAS) .

Distribution. China (Hubei, Hunan, Anhui, Zhejiang, Fujian, Guangxi, Guangdong).

Remarks. This species appears to be closely related to N. occidentalis in having similar wing patterns, but can be easily separated from N. occidentalis by the male tenth sternum in lateral view with the distal half distinctly widened and the subquadrate female gonocoxite. In N. occidentalis , the male tenth sternum is feebly widened on the median portion and the female gonocoxite is much narrower and distinctly pointed at tip. According to the records of Weele (1910) and Yang & Yang (1999), N. sinensis is widely distributed from North China to South China. The label data of the lectotype also indicates its distribution in North China. However, after our extensive collection in China and re-examination to a large series of specimens, N. sinensis is restricted to South China. The previous distribution records of N. sinensis from North China might be due to the misunderstanding of the range of North China by some early European collectors.

Figures

FIGURE 43. The map showing the geographical distributions of N. digitiformis, N. parasparsus, and N. sinensis.

FIGURES 1–9. Habitus photos of the species of the N. sinensis group described or re–described in the present. 1. N. amamioshimanus sp. nov. (Holotype), male; 2. N. formosanus (Okamoto), male; 3. N. jiangxiensis Yang & Yang (Holotype), male; 4. N. koreanus Weele, male; 5. N. occidentalis Weele (Lectotype), male; 6. N. robustus sp. nov. (Holotype), male; 7. N. rotundatus Tjeder, male; 8. N. sinensis (Walker) (Lectotype), male; 9. N. truncatus Kimmins (Allotype), female.

FIGURES 36–39. Neochauliodes sinensis (Walker). 36. Male genitalia, lateral view; 37. Male tenth sternum, ventral view; 38. Male tenth tergum, dorsal view; 39. Female genitalia, lateral view.