Darwallia

Gnezdilov, Vladimir M., Thierry, Bourgoin & Soulier-Perkins, Adeline, 2014, Vietnamese Issidae (Hemiptera, Fulgoroidea): new taxa, new records and new distribution data, Zootaxa 3847 (1) : -

Key to Darwallia species

1 Metope with no mustache like tubercules above the metopoclypeal suture ( Fig. 25 ). Hind margin of female sternum VII convex, with no horn-shaped processes ( Fig. 9 ). Small species, females: 5.5–6. 0 mm. Malaysia, Singapore, Indonesia.............................................................................................. D. patula (Walker)

- Metope with two pairs of mustache like tubercules above the metopoclypeal suture ( Figs 4 , 23 ). Hind margin of female sternum VII with two peculiar horn-shaped median processes ( Fig. 8 ). Large species, female: 8.2 mm. Southern Vietnam.............................................................................................. D. barbata sp. n.

Figures

FIGURES 22 – 25. Darwallia spp. 22 — D. barbata sp. n., holotype, female, in dorsal view; 23 — same, in frontal view; 24 — same, in lateral view; 25 — D. patula (Walker), male, in frontal view.

FIGURES 6 – 9. Darwallia spp., females. 6 — D. barbata sp. n., holotype, left fore wing, in lateral view; 7 — same, right fore wing (fragment), in lateral view; 8 — same, hind margin of VI – VII sternites; 9 — D. patula (Walker), hind margins of VI – VII sternites.

FIGURES 3 – 5. Darwallia barbata sp. n., holotype, female. 3 — head, pro-, and mesonotum, in dorsal view; 4 — face; 5 — clypeus, in lateral view.