Emesinae

Tatarnic, Nikolai J. & Cassis, Gerasimos, 2011, The thread-legged bugs (Hemiptera: Heteroptera: Reduviidae: Emesinae) of Lord Howe and Norfolk Islands, Zootaxa 2967, pp. 21-43 : 23

Key to Emesinae species of Norfolk Island

1. Apterous species; medium sized (12–13 mm), yellow and brown in colour (see Wygodzinsky 1966: Fig. 159A–P)............................................................................................... Leaylia norfolkiana

- Winged species; size and colour variable................................................................... 2

2. Pronotum with elongate, petiolate modification (see Wygodzinsky 1966: 366, Fig. 98E); forewing with three closed cells (dis- cal and divided basal cell; Wygodzinsky 1966: 366, Fig. 98J)................................. Stenolemus fraterculus

- Pronotum subrectangulate, without modification; forewing with discal cell alone ( Fig. 8 A)........................... 3

3. Small species (ca. 5 mm); forewings patterned throughout (see Tatarnic et al. 2011: Fig. 16A); pronotum not divided posteri- orly into short, elevated discal lobe................................................... Empicoris rubromaculatus

- Large species (~ 9 mm); forewings darkened basally, weakly patterned apically ( Fig. 8 A); pronotum divided posteriorly into short, elevated lobe ( Fig. 8 B)................................................................. Ploiaria weiri

Figures

FIGURE 8. Ploiaria weiri: A, Forewing; B, head and pronotum, lateral view. (Not to scale).