4. baiknami species-group

(7 species)

Diagnosis. Members of the baiknami speciesgroup can be distinguished from other Sagola species-groups by the following combination of characters: body length 2.2–3.1 mm; antennomere 1 approximately 2 times longer than wide with dull surface; gular region of male head with transverse depression and with blunt process in middle (Fig. 16i: arrow); fore femur with semicircular depression; abdominal tergites IV–VI with discal carinae; present on North Island, not known from South Island (Figs. 17–18).

KEY TO SPECIES OF THE BAIKNAMI SPECIES- GROUP

The key is based on male specimens because most female specimens are indistinguishable based on external morphology.

1. Body large,> 2.9 mm; mid-tibia not bent; median lobe of genitalia S-shaped (Fig. 16a) ............................. S. baiknami new species

1′. Body smaller, <2.8 mm; mid-tibia bent; median lobe of genitalia straight or bent at 90°.......................................................2

2(1′). Antennomeres 4–11 bearing tubercles; fore tibia with semicircular depression ..... ................................. S. watti new species

2′. Antennomeres without tubercles; fore tibia without depression...................................3

3(2′). Apical lobe of genitalia bird-head- or umbrella-shaped.......................................4

3′. Apical lobe of genitalia blunt.................5

4(3). Apical lobe of genitalia bird-head-shaped; right paramere without minor lobe (Fig. 16d) ............................ S. taupoensis new species

4′. Apical lobe of genitalia umbrella-shaped; right paramere with minor lobe (Fig. 16e) ............................... S. nunni new species

5(3′). Median lobe slender, approximately 3 times longer than wide; left paramere U-shaped (Fig. 16g) ........... S. choeunae new species

5′. Median lobe slender, at least 4 times longer than wide; left paramere L-shaped........... 6

6(5′). Right paramere with 2 acute lobes (Fig. 16c) ............................ S. butcherae new species

6′. Right paramere with arm-shaped lobe and 2 acute lobes (Fig. 16f) ............................ ........................ S. sunsookae new species