Key to the males of New Zealand Pseudolycoriella species

1. Gonostylus with one or two obvious spines.................................................. Psl. bruckii group, 2

- Gonostylus with more than two small spines....................................... Psl. macrotegmenta complex, 26

2. Gonostylus with two spines............................................................................. 3

- Gonostylus with one spine............................................................................. 11

3. Wing length greater than 2.4 mm; length of gonocoxites more than 200 µm ....................................... 4

- Wing length less than 2.4 mm; length of gonocoxites 200 µm or less............................................. 5

4. Base of the ejaculatory apodeme horseshoe-shaped...................................... Psl. zealandica (Edwards)

- Base of the ejaculatory apodeme elongate and slender......................................... Psl. aotearoa sp. n.

5. Fourth flagellomere less than twice as long as wide.......................................... Psl. cavatica (Skuse)

- Fourth flagellomere more than twice as long as wide....................................... Psl. bispina complex, 6

6. Fourth flagellomere less than three times as long as wide, with dense setae (Fig. 5).................... Psl. puhihi sp. n.

- Fourth flagellomere at least three times as long as wide, with sparsely scattered setae (e.g. Fig. 4)...................... 7

7. Wings slender, anal area weakly developed................................................................. 8

- Wings of normal shape, anal area well developed............................................................ 9

8. Wing length less than 2.2 mm; c/w ratio greater than 0.65.......................................... Psl. orite sp. n.

- Wing length 2.2 mm or more; c/w ratio less than 0.65........................................... Psl. porehu sp. n.

9. Base of the ejaculatory apodeme lyre-shaped; apex of tegmen surrounded by a sclerotized margin (Figs 14 & 18); body length more than 1.8 mm, gonocoxites of normal length........................................................... 10

- Base of the ejaculatory apodeme u-shaped; apex of tegmen with membranous area (Fig. 15), body length less than 1.8 mm, gonocoxites short........................................................................... Psl. teo sp. n.

10. Apex of R 5 with macrotrichia only on ventral side; hind tibia with ten or more robust bristles in a longitudinal row............................................................................................. Psl. bispina Mohrig

- Apex of R 5 with macrotrichia on both sides; hind tibia with less than ten robust bristles in a longitudinal row.................................................................................................. Psl. mahanga sp. n.

11. Fourth flagellomere less than twice as long as wide; tegmen apically roundish (Fig. 11)............... Psl. kaikoura sp. n.

- Fourth flagellomere more than twice as long as wide; tegmen with a pronounced apex (at in Fig. 22)..................................................................................................... Psl. jejuna complex, 12

12. Scape and pedicel bright yellowish, contrasting strongly with the brown flagellomeres............................. 13