Mongoliana Distant, 1909

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 : 42

Genus Mongoliana Distant, 1909

Mongoliana Distant, 1909: 87 .

Type species. Hemisphaerius chilocorides Walker, 1851 , by original designation.

Diagnosis

The genus Mongoliana Distant, 1909 can be separated from the other genera of Mongolianina by the following combination of characters:

(1) the tegmina with venation indistinct and with their basal angle projecting anteriorly and forming a rounded lobe beside the head;

(2) the vertex wider than long;

(3) the frons rugulose, weakly convex and often with a row of tubercles along lateral and upper margins;

(4) the clypeus slightly elevated in midline but not sharply carinate and not produced anteriorly;

(5) the hind wings only slightly shorter than the tegmina.

Note

The genus was reviewed and redescribed by Meng et al. (2016). More recently, Zhang et al. (2020) transferred Hemisphaerius signifier Walker, 1851 to the genus Mongoliana , hence indirectly providing the first record of the genus in Vietnam as H. signifer was recorded from Thanh-Ha, Hoa Binh Province, by Fennah (1978). However, Fennah’s record is based on a female specimen, so a record of M. signifer in Vietnam still needs to be confirmed by a reliable identification based on male terminalia characters.

Species included (16)

Mongoliana albimaculata Meng, Wang & Qin, 2016

Mongoliana arcuata Meng, Wang & Qin, 2016

Mongoliana bistriata Meng, Wang & Qin, 2016

Mongoliana chilocorides ( Walker, 1851)

Mongoliana contusa ( Walker, 1851)

Mongoliana lanceolata Che, Wang & Chou, 2003

Mongoliana latistriata Meng, Wang & Qin, 2016

Mongoliana naevia Che, Wang & Chou, 2003

Mongoliana pianmaensis Chen, Zhang & Chang, 2014

Mongoliana qiana Chen, Zhang & Chang, 2014

Mongoliana recurrens ( Butler, 1875)

Mongoliana serrata Che, Wang & Chou, 2003

Mongoliana signifer ( Walker, 1851)

Mongoliana sinuata Che, Wang & Chou, 2003

Mongoliana triangularis Che, Wang & Chou, 2003

Mongoliana vietnamica sp. nov.