Key to species of the Panorpa guttata group (females)

(21 species; P. filina and P. qiana unknown)

1. Wings with greatly developed markings, apical, pterostigmal, basal bands, and marginal and basal spots complete and broad; medigynium lacking posterior arms............................................... Panorpa furcata Zhou & Zhou

- Wings with markings more or less reduced; medigynium with well-developed posterior arms......................... 2

2. A9 greatly elongated and approximately twice as long as A8; medigynium with pair of anterior arms............................................................................ Panorpa reflexa Wang & Hua

- A9 simple; medigynium lacking anterior arms.............................................................. 3

3. Vertex shining black; medigynium with axis entirely concealed in main plate................................................................................................................. Panorpa jiangrixini Wang, sp. n.

- Vertex mostly yellow or yellowish brown; medigynium with axis longer than main plate............................. 4

4. Subgenital plate greatly emarginated terminally; medigynium with lateral margins incurvated....................................................................................................... Panorpa liaoi Zhou & Zhou

- Subgenital plate rounded, truncated or slightly emarginated terminally; medigynium with lateral margins parallel or convex. 5

5. Subgenital plate truncated terminally; medigynium with greatly curled lateral margins............................... 6

- Subgenital plate rounded, slightly truncated or emarginated terminally; medigynium with simple lateral margins.......... 7

6. Head with black star-shaped pattern enclosing ocellar triangle, and another black pattern on occiput; medigynium with posterior arms slender.................................................................... Panorpa stella Wang, sp. n.

- Head mostly yellow with only ocellar triangle black; medigynium with posterior arms short triangular..................................................................... Panorpa huangguiqiangi Wang, sp. n.

7. Medigynium with subtriangular main plate................................................................. 8

- Medigynium with main plate oval or oblong............................................................... 10

8. Medigynium with basal plate oblong and broad at base..................................... Panorpa guttata Navás

- Medigynium with basal plate constricted at base............................................................. 9

9. Medigynium with posterior arms almost parallel.................................... Panorpa jinfoshana Wang, sp. n.

- Medigynium with posterior arms greatly incurvated................................... Panorpa latiloba Wang, sp. n.

10. Medigynium with posterior arms very short and subtriangular............................. Panorpa hani Wang, sp. n.

- Medigynium with posterior arms slender.................................................................. 11

11. Medigynium with axis at least twice as long as main plate.................................................... 12

- Medigynium with axis shorter than twice length of main plate................................................. 19

12. Medigynium with main plate oval or sub-oval in shape...................................................... 13

- Medigynium with main plate oblong in shape.............................................................. 18

13. Medigynium with main plate smoothly convex at lateral margins.............................................. 14

- Medigynium with main plate greatly convex at lateral margins................................................ 16

14. Medigynium with posterior arms shorter than main plate........................... Panorpa decolorata Chou & Wang

- Medigynium with posterior arms longer than main plate..................................................... 15

15. Medigynium with axis approximately three times as long as main plate..................................................................................................................... Panorpa kunmingensis Fu & Hua

- Medigynium with axis approximately twice as long as main plate.................................................................................................................... Panorpa xiaofeng Wang & Gong, sp. n.

16. Medigynium with main plate broadest near middle.................................... Panorpa hirundo Wang, sp. n.

- Medigynium with main plate broadest at sub-basal portion................................................... 17

17. Forewing with reduced basal band; subgenital plate rounded at apex......................... Panorpa dali Wang, sp. n.

- Forewing lacking basal band; subgenital plate slightly emarginated at apex............................................................................................................... Panorpa xuzhu Wang & Gong, sp. n.

18. Medigynium slender, at least five times as long as wide................................ Panorpa caoweii Wang, sp. n. - Medigynium shorter, at most four times as long as wide............................... Panorpa nanzhao Wang, sp. n.

19. Medigynium with triangular projection at apex of main plate between posterior arms........................................................................................................... Panorpa parallela Wang & Hua

- Medigynium lacking projection at apex of main plate........................................................ 20

20. Wings with slightly reduced apical, pterostigmal, and basal bands; subgenital plate with slightly truncated apex; medigynium with apodemes of axis stout.................................................... Panorpa substricta Wang, sp. n.

- Wings with greatly reduced apical and pterostigmal bands; subgenital plate with slightly pointed apex; medigynium with apodemes of axis slender................................................. Panorpa duanyu Wang & Gong, sp. n.