Phlogothamnus, Ishihara, 1961

Hassan, Muhammad Asghar, Zhang, Jie & Xing, Jichun, 2024, Taxonomic notes on the leafhopper genus Phlogothamnus Ishihara (Hemiptera: Cicadellidae: Deltocephalinae), with description of a new species from China, Zootaxa 5432 (2), pp. 289-295 : 290-291

Checklist to species of Phlogothamnus

P. acutaedeagus Li, 2011 Distribution: China.

P. circinatus Yao, Zhang & Xing, 2022 Distribution: China.

P. lupias Linnavuori, 1969 Distribution: Republic of Congo.

P. luteoguttatus Li, 2011 Distribution: China.

P. maculiceps Ishihara, 1961 Distribution: China, India, Thailand.

P. polymaculatus Li & Song, 2010 Distribution: China.

P. productus Li & Xing, 2011 Distribution: China.

P. pseudorugosus Dietrich, Nguyen & Pham, 2020 Distribution: Vietnam.

P. renhuaiensis sp. nov. Distribution: China.

P. rugosus Li, 2011 Distribution: China.

Key to species (males) of Phlogothamnus from the Oriental region (modified after Yao et al., 2022)

Note. We only included the new and known Oriental species in the current key and omitted the only representative Afrotropical species, P. lupias Linnavuori, 1969 , due to a lack of habitus photograph for morphological comparison from the published literature.

1. Crown with one or two large black spots ( Fig. 1C ; Yao et al. 2022: fig. 10)........................................ 2

- Crown without black spots or with irregular black markings................................................... 3

2. Crown with two large black spots ( Yao et al. 2022: fig. 10).......................................... P. maculiceps

- Crown with one large median black spot ( Fig. 1 ).......................................... P. renhuaiensis sp. nov.

3. Crown with irregular black markings...................................................................... 4

- Crown without black markings.......................................................................... 7

4. Aedeagal shaft with a pair of short subapical triangular processes ( Yao et al. 2022: fig. 45).............. P. polymaculatus

- Aedeagal shaft with circular subapical process.............................................................. 5

5. Style short and smooth ( Yao et al. 2022: fig. 32)................................................... P. circinatus

- Style long, with apical and subapical rugae or distinctly denticulate.............................................. 6

6. Style as long as aedeagus, surface distinctly denticulate, mesal margin with 5–6 prominent preapical teeth ( Dietrich et al. 2020: fig. 5G)............................................................................... P. pseudorugosus - Style distinctly longer than aedeagus, with apical and subapical rugae ( Yao et al. 2022: fig. 64)................ P. rugosus

7. Crown with a pair of orange-yellow longitudinal markings.................................................... 8

- Crown with irregular brown markings ( Yao et al. 2022: fig. 1)...................................... P. acutaedeagus

8. Forewings with several black spots ( Yao et al. 2022: fig. 16).......................................... P. productus

- Forewings without spots ( Yao et al. 2022: fig. 7)................................................ P. luteoguttatus

Figures

FIGURES 1–4. Phlogothamnus renhuaiensis sp. nov. Male habitus: 1. Dorsal view; 2. Lateral view; 3. Head and thorax, dorsal view; 4. Face.