Chidaea Emeljanov

Löcker, Birgit & Holzinger, Werner E., 2019, Revision of the Australian planthopper genus Chidaea Emeljanov with a redescription of Cixius sidnicus Stål, 1859 (Hemiptera: Auchenorrhyncha: Fulgoromorpha: Cixiidae), Zootaxa 4691 (5), pp. 401-443 : 407-408

publication ID

https://doi.org/ 10.11646/zootaxa.4691.5.1

publication LSID

lsid:zoobank.org:pub:5B0FFE9A-AF71-49E3-85D4-5F0CF3C07CF7

persistent identifier

https://treatment.plazi.org/id/03D6392B-FFB8-FFEB-FF1A-7041F392FF5F

treatment provided by

Plazi

scientific name

Chidaea Emeljanov
status

 

Key to species of Chidaea Emeljanov View in CoL View at ENA

Notes. This key is mainly based on male specimens, depending on the species, females can only be identified to a certain level. Numerous females were found in material located at the following collections (AMS, ANIC, ASCU, BPBM, QDPI, QM and SAMA) that based on morphological characters alone could not be identified to species level. Chidaea sidnicus is also excluded from the key as the only known specimen is a female.

1 First hind tarsomere apically with a row of at least 4 platellae. .................................................. 2

- First hind tarsomere apically without platellae.............................................................. 9

2(1) Tubercles of forewing dark and distinctly contrasted to paler coloured veins ( Figs 5A View FIGURE 5 , 7A View FIGURE 7 , 10A View FIGURE 10 , 11A View FIGURE 11 ).................. 3

- Tubercles of forewing dark or pale and concolorous with veins ( Figs 2A View FIGURE 2 , 4A View FIGURE 4 , 6A View FIGURE 6 , 12A View FIGURE 12 )............................. 6

3(2) Aedeagus with left lateral spine (a) distinctly longer (almost twice as long) than right lateral spine (b) ( Fig. 26B View FIGURE 26 )........................................................................................... Ch. kimbaensis View in CoL sp. nov.

- Aedeagus with both spines about the same length or right lateral spine (b) longer ( Figs 22B View FIGURE 22 , 25B View FIGURE 25 ). ..................... 4

4(3) Aedeagal spines reaching or surpassing bifurcate ventral process. ( Figs 22B, C View FIGURE 22 )..................... Ch. crassa View in CoL sp. nov.

- Aedeagal spines not reaching bifurcate ventral process ( Figs 20 View FIGURE 20 B–C, 25B–C)..................................... 5

5(4) Base of bifurcate ventral process symmetrical ( Fig. 25B View FIGURE 25 )........................................ Ch. etelis View in CoL sp. nov.

- Base of bifurcate ventral process asymmetrical ( Fig. 20B View FIGURE 20 )................................ Ch. bobadeenensis View in CoL sp. nov.

6(2) Pronotum very long (median carina of pronotum as long or longer than length of basal compartment of vertex) as in Fig. 6B View FIGURE 6 ; carinae on pronotum and head extremely well developed and in distinct colour contrast to adjacent darker areas ( Figs 6 View FIGURE 6 B–D).................................................................................... Ch. carinata View in CoL sp. nov.

- Pronotum short (median carina of pronotum usually much shorter than length of basal compartment of vertex) as in Fig. 2B View FIGURE 2 ; carinae on pronotum and head not in such clear contrast to adjacent areas ( Figs 2 View FIGURE 2 B–D, 4B–D, 12B–D).................. 7

7(6) Aedeagus with entire length of spines visible in ventral view ( Fig. 17B View FIGURE 17 ); aedeagus with two long spines that cross over ventrally ( Fig. 17B View FIGURE 17 )............................................................................ Ch. algida View in CoL sp. nov.

- Aedeagus with spines partly or completely concealed by phallotheca in ventral view ( Figs 19B View FIGURE 19 , 27B View FIGURE 27 ).................. 8

8(7) Aedeagal spines by far not reaching bifurcate ventral process ( Figs 27 View FIGURE 27 A–C). Body length of males 5.7 mm or more, females 6.6 mm or more....................................................................... Ch. orangensis View in CoL sp. nov.

- Aedeagal spines reaching, or almost reaching bifurcate ventral process ( Figs 19 View FIGURE 19 A–C). Body length of males 4 mm or less, females 5 mm or less................................................................ Ch. belairensis View in CoL sp. nov.

9(1) Mesonotum with a prominent black central stripe (area between lateral carinae) in distinct contrast to pale area outside of carinae, often with extreme lateral areas of mesonotum also darkened ( Figs 13B,D View FIGURE 13 )................... Ch. pulyonna View in CoL sp. nov.

- Mesonotum dark or lightly coloured but without a distinctly contrasted, darker central area ( Figs 14 View FIGURE 14 C–D). .............. 10

10(9) Forewings with a u-shaped pattern consisting of 6 dark brown spots ( Fig. 14A View FIGURE 14 ).................... Ch. punctata View in CoL sp. nov.

- Forewings without such u-shaped pattern................................................................. 11

11(10) Aedeagus ventrally with a spine with a large base ( Figs 18B View FIGURE 18 , 23B View FIGURE 23 )............................................. 12

- Aedeagus laterally or ventro-laterally with a spine with a small to moderate base ( Figs 24 View FIGURE 24 A–C, 30A–C)................ 13

12(11) Ventral spine (b) of aedeagus with its tip directed left laterad ( Fig. 23B View FIGURE 23 )........................... Ch. dayi Emeljanov View in CoL

- Ventral spine (b) of aedeagus with its tip directed right laterad ( Fig. 18B View FIGURE 18 )...................... Ch. armidalensis View in CoL sp. nov.

13(11) Aedeagus in lateral view with both spines equally strongly curved ( Figs 30A,C View FIGURE 30 ).................... Ch. wilarra View in CoL sp. nov.

- Aedeagus in lateral view with left lateral spine (a) moderately to strongly curved and right lateral spine (b) almost straight (Figs 24A,C)........................................................................ Ch. dickinsonorum View in CoL sp. nov.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cixiidae

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cixiidae

Genus

Chidaea

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