Hemisphaerius Schaum, 1850

Constant, Jérôme & Pham, Hong Thai, 2024, Sixteen issid planthopper species in one day in Dong Son-Ky Thuong Nature Reserve in North Vietnam: Eight new species, one new genus and additional new records (Hemiptera: Fulgoromorpha: Issidae), European Journal of Taxonomy 919 (1), pp. 1-87 : 11

Genus Hemisphaerius Schaum, 1850

Hemisphaerius Schaum, 1850: 71 .

Type species: Hemisphaerius coccinelloides (Burmeister, 1834) .

Diagnosis

The characters defining the genus were given by Gnezdilov (2017b):

(1) frons flat, smooth, widened above clypeus, with lateral margins slightly projecting on sides;

(2) frons and postclypeus without carinae;

(3) vertex wider than long;

(4) pro- and mesonotum without carinae;

(5) costal margin of tegmina not strongly projecting anteriorly under eye;

(6) hind wings rudimentary;

(7) metatibiae with 2 lateral spines;

(8) periandrium asymmetrical;

(9) aedeagus without ventral hooks;

(10) posterior margin of pygofer rounded in lateral view;

(11) gonostyli with short and wide capitulum;

(12) anal tube wide in dorsal view.

Distribution

China, Japan, Taiwan, Vietnam, Cambodia, Myanmar, Thailand, India, Sri Lanka, Malaysia, Singapore, Philippines, Indonesia, New Guinea, Solomon Islands ( Bourgoin 2023).