Key to species of Neochauliodes from Guangxi, China

1. Wings hyaline with brown marks (Figs. 2, 3, 5, 7–9) ................................................... 2

­ Wings mostly dark with several hyaline marks (Figs. 1, 4, 6, 10)................................ 7

2. Forewing with R3 and R4 nearly straight (Figs. 2, 3, 9) ................................................. 3

­ Forewing with R3 and R4 curved backward at tip (Figs. 1, 4–8, 10).............................. 5

3. Hindwing with median transverse band rather short and narrow (Fig. 3); aedeagus broad and subtrapezoidal with arched apical incision (Fig. 19)...................................... ............................................................................ Neochauliodes fraternus (McLachlan)

­ Hindwing with median transverse band rather long and broad; aedeagus narrow and... attenuate without apical incision................................................................................... 4

4. Forewing with basal costal area densely dotted with dark brown spots (Fig. 2); aedeagus in lateral view with middle portion strongly inflated (Fig. 15) ................................ ............................................................................ Neochauliodes bowringi (McLachlan)

­ Forewing without any dark marks on basal costal area, but may have costal area clouded (Fig. 9); aedeagus with paired short subapical processes directed dorsally (Fig. 40) .................................................................. Neochauliodes umbratus Kimmins

5. Head and prothorax entirely yellow; aedeagus in lateral view slender and apically curved dorsad ................................................................................................................ 6

­ Head entirely dark to black and prothorax yellowish brown with pair of brownish vittae (Fig. 8); aedeagus in lateral view spoon­shaped with apex moderately inflated and not curved dorsad (Fig. 36) .............................................. Neochauliodes nigris sp. nov.

6. Forewingapicallywithseveralbrownishvittaealonglongitudinalveins(Fig.5);aedeagus without apical incision, length three times width (Fig. 26); female gonapophyses slightly sclerotized and strongly elongated (Fig. 27) ...................................................... ..................................................................... Neochauliodes guangxiensis Yang & Yang

­ Forewingapicallywithdiffusemarks(Fig.7); aedeaguswithtinyapicalincision(Fig.33); female gonapophyses membranous and not elongated (Fig. 35) ....................................

................................................................................. Neochauliodes meridionalis Weele 7. Head entirely yellow; hindwing basally hyaline; aedeagus in lateral view widest in apical half ..................................................................................................................... 8

­ Head usually darker; hindwing basally dark; aedeagus with apical half not widened.. 9

8. Hindwing with apical hyaline marks broad and subquadrate (Fig. 6); aedeagus with apical margin nearly truncate in ventral view (Fig. 29) .................................................. ............................................................................. Neochauliodes latus Yang, Gao & An

­ Hindwing with small diffuse hyaline apical marks (Fig. 10); aedeagus with apical margin round (Fig. 45) ...................................... Neochauliodes wuminganus Yang & Yang

9. Prothorax entirely black (Fig. 1); aedeagus in lateral view with acute tip (Fig. 11) ....... ..................................................................................... Neochauliodes acutatus sp. nov.

­ Prothorax entirely yellow (Fig. 4); aedeagus in lateral view with blunt tip (Fig. 22)..... ......................................................................................... Neochauliodes fuscus sp. nov.