Genus Gelastyrella Yang, 1994

Gelastyrella Yang, 1994 in Chan & Yang, 1994: 90.

Type species: Gelastyrella litaoensis Yang, 1994, by original designation.

Diagnosis

The genus Gelastyrella can be differentiated from the other genera of Parahiraciina by the following combination of characters (based on Zhang et al. 2020):

(1) the frons about as long a wide, with median carina and a transverse carina under the dorsal margin;

(2) the tegmina tapering towards apex, with vein ScP+R forked near base, MP 3-branched with first fork around midlength and CuA unforked;

(3) the tri-lobed hind wings (with A2 lobe reduced);

(4) the first metatarsomere with a dense pad of spines ventrally, in addition to spines of the apical margin;

(5) the ventral lobe of the periandrium strongly expanded basiventrad in rounded lobes;

(6) the aedeagus with one pair of lateroventral processes and well developed suspensorium.

Species included (distribution)

Gelastyrella litaoensis Yang, 1994 (China (Hainan, Fujian, Guangxi); Taiwan; Vietnam – Chan & Yang 1994; Gnezdilov et al. 2014a; Gnezdilov 2015).