Monday, March 3, 2025

[Entomology • 2025] Malaxa chongzuoensis & M. longispina • Two New Species of the Genus Malaxa Melichar, 1914 (Hemiptera: Fulgoromorpha: Delphacidae) from China

 

 Malaxa chongzuoensis Lv & Chen, 

in Lv, Li, Yang, Zhang et Chen, 2025. 

Abstract
Two new species of the genus Malaxa Melichar, 1914 from Southwest China, M. chongzuoensis Lv & Chen, sp. nov. from Guangxi Zhuang Autonomous Region, and M. longispina Lv & Chen, sp. nov. from Guangdong Province, are described and illustrated. These bring the total number of species in the genus to 13, with nine recorded from China. A checklist and map of all known species of Malaxa are provided, together with an identification key for Chinese species.

Key words: Bamboo host, checklist, Fulgoromorpha, identification key, Oriental region, planthopper, taxonomy, Tropidocephalini

 Malaxa chongzuoensis Lv & Chen, sp. nov., male 2 habitus, dorsal view 3 habitus, lateral view
 Malaxa longispina Lv & Chen, sp. nov., male 4 habitus, dorsal view 5 habitus, lateral view.
Scale bars: 0.5 mm (2–5).

 Malaxa chongzuoensis Lv & Chen, sp. nov.

Etymology. The new species is named after the city in which it was collected (Chongzuo) with the Latin adjectival suffix ‘-ensis’ meaning ‘from’.

Adult of Malaxa chongzuoensis Lv & Chen, sp. nov. resting on the leaf of Indocalamus tessellatus (Munro) P. C. Keng (Poales: Poaceae: Bambusoideae).
Photographed by Xiang-Sheng Chen.

 Malaxa longispina Lv & Chen, sp. nov.

Etymology. The species name is a combination of the Latin word “long-” and “spina” (with the connecting letter “i”, i.e., “long spine”), referring to the ventral margin of the aedeagus with a long spinous process medially. The name is intended to be feminine.


Sha-Sha Lv, Hong-Xing Li, Lin Yang, Yu-Bo Zhang and Xiang-Sheng Chen. 2025. Two New Species of the Genus Malaxa Melichar, 1914 from China (Hemiptera, Fulgoromorpha, Delphacidae, Tropidocephalini). ZooKeys. 1229: 275-287. DOI: doi.org/10.3897/zookeys.1229.143177