Riseveinus hamatus, Wang & Dietrich & Zhang, 2018

Wang, Yang, Dietrich, Christopher H. & Zhang, Yalin, 2018, Four new species of the leafhopper genus Riseveinus Li (Hemiptera: Cicadellidae: Evacanthinae) from China and Thailand, Zootaxa 4508 (2), pp. 259-266 : 261

publication ID

https://doi.org/ 10.11646/zootaxa.4508.2.8

publication LSID

lsid:zoobank.org:pub:3375CF8C-7952-4CF5-8E39-09DE2197119D

DOI

https://doi.org/10.5281/zenodo.5957449

persistent identifier

https://treatment.plazi.org/id/9A1987B1-F20F-2438-D3BC-5CDDB1F4FBFD

treatment provided by

Plazi

scientific name

Riseveinus hamatus
status

sp. nov.

Riseveinus hamatus View in CoL sp. nov.

( Figs 11–17 View FIGURES 11–17 )

Description. Body length (incl. forewing): ♂, 8.3-8.5 mm. Head width (incl. eyes): 1.5–1.6 mm; head length: 1.5– 1.6 mm. Crown ( Fig. 11 View FIGURES 11–17 ) about 3/4 length of pronotum and scutellum together.

Anal tube with barblike ventral process ( Fig. 14 View FIGURES 11–17 ). Aedeagal shaft short, swollen at base and then gradually narrowing towards apex in lateral view, without apical processes; apodeme bilobed, dorsolateral extensions short, rounded; paired ventrolateral processes longer than aedeagal shaft, and close to aedeagal shaft in lateral view ( Figs 15, 16 View FIGURES 11–17 ).

Type material. Holotype ♂ ( NMNS), TAIWAN, Taichung, Dashuishan Forest Rd. km 20, 1250m, 24°15'6"N 120°54'58"E, 18.vi.2004, C.H. Dietrich, 16-1, sweeping GoogleMaps . Paratypes: 2♂♂ ( NWAFU, INHS), TAIWAN, Taichung, Dashuishan Forest Rd. km 23, 1600m, 24°14'48"N 120°56'8"E 18.vi.2004, J.H. Zahniser, 17-1, sweeping GoogleMaps .

Etymology. The specific epithet “ hamata ”, meaning hooked, refers to the barblike ventral process of the anal tube ( Fig. 14 View FIGURES 11–17 ).

Remarks. This species is very similar to R. sinensis (Jacobi) externally, but differs as follows: 1) anal tube with barblike ventral process ( Fig. 14 View FIGURES 11–17 ); absent in R. sinensis ); 2) in lateral view, aedeagal shaft swollen at base and then narrowing towards apex gradually (aedeagal shaft same width from base to apex in R. sinensis ); 3) aedeagal ventral process evenly curved near apex (sinuate near apex in R. sinensis ).

NMNS

National Museum of Natural Science

INHS

Illinois Natural History Survey

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Cicadellidae

SubFamily

Evacanthinae

Genus

Riseveinus

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