Issus christiani, Gnezdilov, 2019

Gnezdilov, V. M., 2019, A new species of the genus Issus Fabricius (Hemiptera: Auchenorrhyncha: Fulgoroidea: Issidae) from Northwestern Algeria, Proceedings of the Zoological Institute of the Russian Academy of Sciences 323 (1), pp. 16-21 : 20-21

publication ID	https://doi.org/10.31610/trudyzin/2019.323.1.16
persistent identifier	https://treatment.plazi.org/id/6B184D29-FFA5-7A10-FCA8-F9F690BB320F
treatment provided by	Felipe
scientific name	Issus christiani
status

Treatment

Key to African species of the genus Issus View in CoL View at ENA

1. Phallobase with strong median carina below its ventral lobe, anal tube deflexed apically (in lateral view) ( Gnezdilov 2017, figs 5, 6, 8).... I. tubiflexus Gnezdilov View in CoL

– Phallobase with weak median carina or without it, anal tube straight apically (in lateral view)......... 2

2. Phallobase with weak median carina below ventral lobe ( Sergel 1986, figs 6, 7)............... 3

– Phallobase without median carina below ventral lobe................................. 4

3. Fore wings yellowish green..... I. afrolauri Sergel View in CoL

– Fore wings brown........ I. kabylicus Dlabola View in CoL

4. Length of fore wing – 4.7 mm. Ventral aedeagal hooks 0.3 times as long as aedeagus ( Gnezdilov 2017, fig. 15)................... I. vaucheri Gnezdilov View in CoL

– Length of fore wing – 4.0 mm. Ventral aedeagal hooks 0.25 times as long as aedeagus ( Fig. 4 View Figs 4–12 ).............................. I. christiani View in CoL sp. nov.