Phormiobius, Broun. A, 1917

Shen, Jia-Wei, Choi, Su-Ho & Leschen, Richard A. B., 2020, Revision of the New Zealand endemic genus Phormiobius (Coleoptera: Staphylinidae: Pselaphinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 60 (2), pp. 553-564 : 557

Key to species of Phormiobius (males)

1 Concavity on V3 with conspicuous apical spines. ..... 2

‒ Concavity on V3 lacking apical spines. ...................... 4

2 Concavity on V2 with apical spines ( Figs. 3B ). ............. ........................................................... P. brouni sp. nov.

‒ Concavity on V2 lacking apical spines. ....................... 3

3 Concavity on V2 ( Fig. 5B ) about as wide as length of metatrochanter; metatibia with small apical tooth ( Fig. 5D ); South Island. .......................... P. halli Broun, 1917

‒ Concavity on V2 ( Fig. 7B ) narrower than length of metatrochanter; metatibia with small apical tooth ( Fig. 7C ); North Island. ........................ P. pseudhalli sp. nov.

4 Abdominal ventrite 4 weakly or distinctly concave in the middle. ....................................................................... 5

‒ Abdominal ventrite 4 unmodified ( Fig. 6B ). ................. ........................................................... P. matau sp. nov.

5 Concavity on V1 present and distinct ( Fig. 8B ). ........... ........................................................ P. ramsayi sp. nov.

‒ Concavity on V1 absent ( Fig. 4B ). .................................. ......................................................... P. graceae sp. nov.

Figures

Fig. 3. Diagnostic characters of Phormiobius brouni sp. nov. A – habitus; B – abdomen, in ventrolateral view; C – same, in ventral view; D – metatrochanter; E – metatibia. Scale bars: A–C = 0.5 mm, D–E = 0.1 mm.

Fig. 5. Diagnostic characters of Phormiobius halli Broun, 1917.A – habitus; B – abdomen, in ventral view; C – metatrochanter; D – metatibia; E – T8; F – V8 and T9; G – aedeagus, in dorsal view; H – same, in lateral view; I – same, in ventral view. Scale bars: A–B = 0.5 mm, C–I = 0.1 mm.

Fig. 7. Diagnostic characters of Phormiobius pseudhalli sp. nov.A – habitus; B – abdomen, in ventral view; C – metatibia; D – metatrochanter; E – T8; F – V8 and T9; G – aedeagus, in dorsal view; H – same, in lateral view; I – same, in ventral view. Scale bars: A–B = 0.5 mm, C–I = 0.1 mm.

Fig. 6. Diagnostic characters of Phormiobius matau sp. nov. A – habitus; B – abdomen, in ventral view; C – metatibia; D – metatrochanter; E – T8; F – V8 and T9; G – aedeagus, in dorsal view; H – same, in lateral view; I – same, in ventral view. Scale bars: A–B = 0.5 mm, C–I = 0.1 mm.

Fig.8. Diagnostic characters of Phormiobius ramsayi sp. nov. A – habitus; B – abdomen, in ventral view; C – metatrochanter; D – metatibia. Scale bars: A–B = 0.5 mm, C–D = 0.1 mm.

Fig. 4. Diagnostic characters of Phormiobius graceae sp. nov. A – habitus; B – abdomen, in ventral view; C – metatrochanter; D – metatibia; E – T8; F – V8 and T9; G – aedeagus, in dorsal view; H – same, in lateral view; I – same, in ventral view. Scale bars: A–B = 0.5 mm, C–I = 0.1 mm.