Ewartia,

Popple, Lindsay W., 2017, A revision of the Ewartia oldfieldi (Distant) species complex (Hemiptera: Cicadidae: Cicadettinae) with five new species from eastern and northern Australia, Zootaxa 4263 (3), pp. 401-449: 404

publication ID

https://doi.org/10.11646/zootaxa.4263.3.1

publication LSID

lsid:zoobank.org:pub:389C914F-C923-47E5-8908-58E68615516A

persistent identifier

http://treatment.plazi.org/id/EF5C070C-545C-FFB3-FF1C-FBCDFA7F6E42

treatment provided by

Plazi

scientific name

Ewartia
status

 

Key to species in the genus Ewartia 

1. Specimen mainly medium brown to dark brown or green to brown with a brown or red central stripe along dorsum (eastern or northern Australia)....................................................................................2

- Specimen uniform pale green to yellow-brown, lacking a brown or red central stripe (central Western Australia)..... cuensis   

2. Central fascia of pronotum either darker than or similar to remainder of pronotum..................................3

- Central fascia of pronotum yellow-brown and distinctly paler than remainder of pronotum (Cooktown to Cape York, northern Queensland)..................................................................................... .. brevis 

3. Head width 3.5–4.5 mm; pronotum greenish to yellow-brown, typically without a brown central fascia (southern edge of the Top End of the Northern Territory)........................................................... thamna  ( Fig. 2View FIGURE 2 E)

- Head width 4.9–7.0 mm; pronotum greenish or olive-brown, typically with a dark brown, brown or reddish central fascia...4

4. Thorax with lateral sigilla on mesonotum clearly paler than submedian sigilla; specimen mainly green with a conspicuous brown stripe medially along dorsum.......................................................................5

- Thorax with lateral sigilla and submedian sigilla on mesonotum both equally dark brown to black; specimen mainly medium brown to dark brown (Cape York, northern Queensland).......................................... .. carina  ( Fig. 2View FIGURE 2 F) 

5. Central fascia of pronotum reddish or dark brown; the anterior portion of this fascia being wider than the inner margins of the lateral ocelli.......................................................................................... 6

- Central fascia of pronotum medium brown; the anterior portion of this fascia being narrower than the inner margins of the lateral ocelli (southern Queensland to mid-northern New South Wales)................................. roberti  ( Fig 2View FIGURE 2 B) 

6. Head width <5.9 mm; female ovipositor extends approximately 3 mm beyond the apex of abdominal segment 9 (Top End of the Northern Territory)..................................................................... etesia  ( Fig. 2View FIGURE 2 D)

- Head width typically> 5.9 mm; female ovipositor extends <2.6 mm beyond the apex of abdominal segment 9............ 7

7. Central fascia of pronotum broadens posteriorly to margin of pronotal collar; female ovipositor extends 2.0– 2.5 mm beyond the apex of abdominal segment 9 (south-eastern Queensland north to the Tropic of Capricorn)........... oldfieldi  ( Fig. 2View FIGURE 2 A)

- Central fascia of pronotum broadens posteriorly, then narrows abruptly anterior to margin of pronotal collar; female ovipositor extends <0.5 mm beyond the apex of abdominal segment 9 (inland Queensland and New South Wales).... lapidosa  ( Fig. 2View FIGURE 2 C) 

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadidae