Bungona, Harker, 1957

Shi, Weifang & Tong, Xiaoli, 2019, Genus Bungona Harker, 1957 (Ephemeroptera: Baetidae) from China, with descriptions of three new species and a key to Oriental species, Zootaxa 4586 (3), pp. 571-585: 584-585

publication ID

https://doi.org/10.11646/zootaxa.4586.3.12

publication LSID

lsid:zoobank.org:pub:91C77484-124B-47CB-9DAA-C0BFA4284B17

persistent identifier

http://treatment.plazi.org/id/039E87F8-1674-E536-FF39-FBE1FA1BFEAC

treatment provided by

Plazi

scientific name

Bungona
status

 

Key to Bungona  species known from Oriental Region (mature nymphs)

(Excluding Genus No. 2 sp. 1, sensu Müller-Liebenau, 1984. *Based on the original description)

1. Tarsal claws dentate ( Figs 41View FIGURES 41–46, 53View FIGURES 50–59, 64View FIGURES 60–66); posterior marginal spines of tergite IX with broadly interrupted medially ( Figs 44View FIGURES 41–46, 54View FIGURES 50–59)................................................................................ 2 (subgen. Chopralla  )

- Tarsal claws edentate ( Figs 2View FIGURES 1–5, 26View FIGURES 16–26); posterior marginal spines of tergite IX contiguous and complete ( Fig. 13View FIGURES 6–15)........................................................................................... 9 (subgen. Centroptella  )

2 (1). Prostheca of right mandible neither bifid nor plumose, situated close to incisors ( Figs 35–36View FIGURES 32–40, 60View FIGURES 60–66)...................... 3

- Prostheca of right mandible forked and plumose, situated relatively far from incisors ( Fig. 51View FIGURES 50–59)...................... 4

3 (2). Pronotum with a pair of submarginal median tubercles posteriorly ( Figs 62–63View FIGURES 60–66); labrum surface with simple submarginal setae [ China, Vietnam]................................................................. B. (Ch.) liebenauae 

- Pronotum smooth without any tubercles; labrum surface with forked submarginal setae ( Fig. 37View FIGURES 32–40)[ China]................................................................................................ B. (Ch.) bifida  sp. nov.

4 (2'). Hindwing pads completely absent (cf. Müller-Liebenau 1983:fig. 2b)............................................ 5

- Hindwing pads minute but visible...................................................................... 6

5 (4). Abdominal tergite I uniformly yellow-white (cf. Müller-Liebenau 1983:fig. 6); tergites IX–X with spines on posterior margin ( Marle et al. 2016: table 1) [ Sri Lanka]...................................................... B. (Ch.) similis  *

- Abdominal tergite I yellow-white tinged with irregular brown markings (cf. Marle et al. 2016: fig. 19); tergites VIII–X with spines on posterior margin ( Marle et al. 2016: table 1) [ Indonesia]............................... B. (Ch.) bintang  *

6 (4'). Posterior marginal spines present only on tergites IX–X..................................................... 7

- Posterior marginal spines present on tergites IV–X......................................................... 8

7 (6). Segment II of labial palpus dorsally with a row of 4 long, simple setae on distomedial area, dorsal margin of femora with 11– 15 long, clavate setae ( Marle et al. 2016: table 1) [ Sri Lanka]................................ B. (Ch.) ceylonensis  *

- Segment II of labial palpus dorsally with a row of 3 long, simple setae on distomedial area, dorsal margin of femora with 8– 10 long, clavate setae ( Marle et al. 2016: table 1) [ Malaysia].................................... B. (Ch.) pusilla  *

8 (6'). Prostheca of right mandible bifurcated and plumose; tergites V–X with acute triangular spines on posterior margins; gill I less than 4 times as long as wide [ China]..................................................... B. (Ch.) fusina 

- Prostheca of right mandible plumose but not forked; tergites IV–X with acute triangular spines on posterior margins ( Marle et al. 2016: table 1); gill I more than 5 times as long as wide [ Vietnam]............................ B. (Ch.) colorata  *

9 (1'). Hindwing pads completely absent..................................................................... 10

- Hindwing pads minute but visible..................................................................... 11

10 (9). Outer incisors of mandibles with a small lateral denticle, segment III of labial palpus rounded with distal margin slightly expanded ( Müller-Liebenau 1983) [ Sri Lanka]................................................ B. (C.) soldani  *

- Outer incisors of mandibles without lateral denticle, segment III of labial palpus subrectangular with distal margin straight and unexpanded ( Marle et al. 2016) [ Indonesia]........................................... B. (C.) papilionodes  *

11 (9'). Length of maxillary palpus approximately 1/2 of galealacinia [ China]............................ B. (C.) longisetosa 

- Maxillary palpus subequal to galealacinia in length....................................................... 12

12 (11'). Body with relatively uniformly brown colouration ( Fig. 31View FIGURES 27–31); antennal pedicel about 2 x length of scape ( Fig. 16View FIGURES 16–26); terminal segment of labial palpus rectangular ( Fig. 18View FIGURES 16–26); posterior marginal spines present on tergites II–X [ China]............................................................................................. B. (C.) quadrata  sp. nov.

- Body with relatively contrasting colour pattern ( Figs 14–15View FIGURES 6–15); anternnal pedicel slightly longer than scape; terminal segment of labial palpus irregular trapezoidal, distal margin truncated ( Fig. 8View FIGURES 6–15); posterior marginal spines present on tergites IV–X [ China]........................................................................... B. (C.) ovata  sp. nov.