Ctenochauliodes stigmosus, Liu, Xingyue, Hayashi, Fumio & Yang, Ding, 2011

Liu, Xingyue, Hayashi, Fumio & Yang, Ding, 2011, Taxonomic notes and updated phylogeny of the fishfly genus Ctenochauliodes van der Weele (Megaloptera: Corydalidae), Zootaxa 2981, pp. 23-35 : 31

Ctenochauliodes stigmosus sp. nov.

( Figures 5 , 21 )

Diagnosis. The forewings of this species are densely marked by numerous small brownish spots, but with two broad immaculate areas at middle and distal 1/3. Male tenth tergum is not twisted on apex but bears a ventral process subdistally. Male tenth gonocoxite comprises a pair of forcipate lobes, with right lobe much longer than left lobe and straightly directed at tip. The female eighth gonocoxite paired, subtrapezoidal, and eighth gonapophyses strongly sclerotized.

Description. See description of C. nigrovenosus made by Liu and Yang (2006b).

Type material. Holotype 3, CHINA: “Guangxi, Huaping, Tianpingshan [25°28ʹN, 109°57ʹE], 5.VI.1963, Chikun Yang” ( CAU). Paratypes 1Ƥ, same data as holotype ( CAU); 1Ƥ (originally designated as a paratype of C. similis ), CHINA: “Guangxi, Huaping, Tianpingshan, 6.VI.1963, Chikun Yang”; 13, CHINA: “Guangxi, Huaping, 24.VI.1982, Chikun Yang” ( CAU).

Distribution. China (Guangxi).

Etymology. The epithet “ stigmosus ” refers to the forewing patterns with numerous small dark spots.

Remarks. Due to the clarification of the identity of C. nigrovenosus , the species misidentified as C. nigrovenosus by Liu and Yang (2006b) should be named as a new species. However, the assumption of Liu and Yang (2006b) that this species has close affinity with C. similis is not changed. The shape of the right lobe of the male tenth gonocoxite is a distinct feature for differentiation of these two species, which is relatively longer with spinous tip straight and directed posteriorly in C. stigmosus , but short and hook-like at tip in C. similis .

Figures

FIGURES 4 – 5. Habitus images of Ctenochauliodes spp. 4. C. nigrovenosus (van der Weele), holotype male of C. forcipatus Kimmins; 5. C. stigmosus sp. nov., holotype male. Scale bars = 5.0 mm.

FIGURES 16 – 21. Female eighth gonocoxites of Ctenochauliodes spp., ventral view. 16. C. fujianensis Yang & Yang; 17. C. elongatus Yang & Yang; 18. C. griseus Yang & Yang; 19. C. meridionalis Yang & Yang; 20. C. similis Liu & Yang; 21. C. stigmosus sp. nov. Gp 8: eighth gonapophyses.