Cryptoperla formosana (Okamoto, 1912)

Mo, Raorao, Liu, Ruijun, Wang, Guoquan, Li, Weihai & Murányi, Dávid, 2021, Two new and one poorly known species of the Cryptoperla formosana species group (Plecoptera: Peltoperlidae) from China, Zootaxa 5032 (2), pp. 237-246 : 244-245

publication ID

https://doi.org/ 10.11646/zootaxa.5032.2.5

publication LSID

lsid:zoobank.org:pub:AE42CCEE-D3D0-4D9D-A05E-8ECAD6BE6281

persistent identifier

https://treatment.plazi.org/id/038087BB-FFFB-FFEA-36C7-E91205B1FB54

treatment provided by

Plazi

scientific name

Cryptoperla formosana
status

 

Key to males of species of Cryptoperla formosana View in CoL species group

1. Basal cercal segment has a single apical lobe bearing dense bristles or hairs....................................... 2

- Basal cercal segment has a single or multidentate apical spur lacking dense bristles or hairs......................... 4

2. Basal cercal segment lacks a thick cluster of digitate bristles (figs. 1‒2 in Sivec 1995)............ C. fujianica Sivec, 1995 View in CoL

- Basal cercal segment has a thick cluster of digitate bristles extending medially.................................... 3

3. Inner margin of basal cercal segment lacks distinct long bristles (figs. 2‒5 in Huo & Du 2018)........ C.dactylina Du, 2018 View in CoL

- Inner margin of basal cercal segment bears distinct long bristles....................... C. kawasawai Maruyama, 2002 View in CoL

4. Cercal spur is simple without teeth....................................................................... 5

- Cercal spur is multidentate............................................................................ 14

5. Cercal spur is hook-like, strongly curved dorsally (figs. 15‒16 in Stark & Sivec 2007a)..... C. hubleyi Stark & Sivec, 2007 View in CoL

- Cercal spur is straight or slightly curved................................................................... 6

6. Cercal spur has a blunt tip.............................................................................. 7

- Cercal spur has a sharp tip.............................................................................. 9

7. Cercal spur is fully transparent, without apical setae (fig. 14 in Stark & Sivec 2007b)....... C. uchidai Stark & Sivec, 2007 View in CoL

- Cercal spur is not fully transparent, with apical setae......................................................... 8

8. Cercal spur may extend to distal end of cercal segment 3, with 2‒3 long apical setae; cercal segment 2 has a short dorsal process (fig. 49 in Stark 1989).............................................................. C. bisaeta ( Kawai, 1968) View in CoL

- Cercal spur does not extend past cercal segment 2, with 1‒2 short apical setae; cercal segment 2 lacks dorsal process (figs. 30, 33 in Stark 1989)....................................................................... C. kali Stark, 1989 View in CoL

9. Inner margin of apical half of basal cercal segment lacks long bristles (figs. 1C‒1E in Kawai, 1968)............................................................................................... C. ishigakiensis ( Kawai, 1968) View in CoL

- Inner margin of apical half of basal cercal segment has distinct long bristles...................................... 10

10. Cercal spur is very long and slightly exceeds subsequent five segments (figs. 3‒4 in Sivec 1995).... C. stilifera Sivec, 1995 View in CoL

- Cercal spur is shorter and does not exceed subsequent four segments........................................... 11

11. Cercal spur is bicolored and its apical half transparent (figs. 17, 19 in Stark 1989)................... C. akha Stark, 1989 View in CoL

- Cercal spur has uniform color.......................................................................... 12

12. Aedeagus has a pair of horn-like basal lobes ( Figs. 3c, 3e‒3f View FIGURE 3 ).................................. C. bicornata View in CoL sp. nov.

- Aedeagus has two pairs of apical lobes................................................................... 13

13. Aedeagus has a pair of ventral setal patches (fig. 8 in Uchida & Isobe 1988) .............. C. formosana ( Okamoto, 1912) View in CoL

- Aedeagus lacks ventral setal patches ( Figs. 4c View FIGURE 4 , 5c View FIGURE 5 , 6a View FIGURE 6 )....................................... C. cunicidata View in CoL sp. nov.

14. Inner margin of apical half of basal cercal segment lacks long bristles (figs. 1‒3 in Wu 1973; Fig. 1b View FIGURE 1 ).................................................................................................... C. aculeata ( Wu, 1973) View in CoL

- Inner margin of apical half of basal cercal segment has long bristles............................................ 15

15. Cercal spur consists of several polyp-like structures with apical hair tufts (figs. 1‒3 in Sivec 2005)...... C. dui Sivec, 2005 View in CoL

- Cercal spur lacks polyp-like structures................................................................... 16

16. Cercal spur is spatulate with serrate apex (figs. 45, 48 in Stark 1989)........................ C. chiangi ( Banks, 1940) View in CoL

- Cercal spur is not spatulate but with spines or teeth......................................................... 17

17. Cercal spur consists of a major spur and 3‒10 smaller dorsal spines (figs. 50‒53 in Stark 1989)... C. fraterna ( Banks, 1938) View in CoL

- Cercal spur consists of multidentate teeth................................................................. 18

18. Cercal spur with 1‒3 long teeth (figs. 1, 4 in Stark 1989)...................................... C. karen Stark, 1989 View in CoL

- Cercal spur with ca. 10 short teeth (figs. 2, 4 in Stark & Sivec 2007a).............. C. curvata Stark & Sivec, 2007 View in CoL

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Peltoperlidae

Genus

Cryptoperla

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