Platystethynium

Huber, John T. & Read, Jennifer, 2021, A new, remarkable species of Platystethynium (Platypatasson) (Hymenoptera: Mymaridae) from New Zealand, Zootaxa 5052 (2), pp. 215-232 : 229

Key to World Platystethynium species. Males.

This key is based on the few differences mentioned and illustrated (line drawings) by Subba Rao (1970) and the several differences described and illustrated (photographs) by Ortis et al. (2020). Males are still undescribed for P. onomarchicidum , P. terebrator and P. vagatus .

1 Flagellum 10-segmented ( Figs 14, 15 ); fl 1 at most 1.0× as wide as long, and more than 1.0× as long as fl 2 ............... 2

- Flagellum 11-segmented; fl 1 about 2.5× as wide as long, and 0.5× as long as fl 2 ( Subba Rao 1970, fig. 15)................................................................................................. P. fransseni (Ogloblin)

2(1) Fl 1 almost 1.4× as long as wide, and almost 1.1× as long fl 2; remaining flagellomeres except apical flagellomere wider than long.................................................................................... P. earlyi Huber

- Fl 1 at most 1.0× as long as wide, and at least 1.2× as long fl 2 ( Ortis et al. 2020, fig. 8A, B); remaining flagellomeres longer than wide...................................................................... P. triclavatum (Donev & Huber)

Figures

FIGURES 13–17. Platystethynium (Platypatasson) earlyi Huber, paratype male. 13a, head, anterior; 13b, head, posterior; 14, right antenna; 15, left antenna; 16, mesosoma, dorsal; 17, genitalia. Scale bars: 13, 17 = 50 μm; 14–16 = 100 μm.