Diplonevra

Disney, R. H. L., 2011, Three new species and a new key to the Diplonevra Lioy (Diptera: Phoridae) from Australia, Zootaxa 2792 (1), pp. 41-50 : 47-48

Key to males of Australian species of Diplonevra

Eleven species from Australia are now known in the male sex. A key to the females of four of these species, plus two species only known in the female sex, is provided elsewhere ( Disney & Kistner 1997) and two further species only known in the female sex are covered by Disney & Kistner (1999).

1. Hind tibia with at least one bristle before the apical quarter..................................................... 2

- Hind tibia lacks pre-apical bristles........................................................................ 6

2. Hind tibia with at least one pre-apical anterodorsal bristle...................................................... 3

- Hind tibia lacks pre-apical anterodorsal bristles but has a short anteroventral bristle just beyond the mid point. (Base of hind femur as Fig. 16 )...................................................................... termispinosa Disney

3. Hind tibia with a single pre-apical anterodorsal bristle......................................................... 4

- Hind tibia with 2 or more pre-apical anterodorsal bristles. (Also with 3 smaller anteroventral bristles on hind tibia. Tip of hind trochanter and base of hind femur as Fig. 13 ).............................................. peregrina (Wiedemann)

4. Thorax straw yellow to orange........................................................................... 5

- Thorax dark brown to black. (Vein 4 concave, with respect to anterior margin of wing, but with last quarter curved rearwards)....................................................................................... nigrita (Malloch)

5. Thorax orange. Wing more than 2.5 mm long. Base of hind femur as Fig. 2 . Hypopygium as Fig. 1 ...... collessi new species - Thorax straw yellow. Wing less than 2 mm long. Base of hind femur Simple. Hypopygium as Fig. 12 ....... predicta Disney

6. Thorax brown to dark brown............................................................................. 7

- Thorax with scutum dusky yellow contrasting with brown scutellum......................... nigroscutellata (Malloch)

7. Knob of haltere brown.................................................................................. 8

- Knob of haltere mainly yellow. (Base of hind femur as Fig. 3 . Tip of wing smoky)................... fumosa new species

8. Postpedicels brown. Wing at most 3 mm long............................................................... 9

- Postpedicels orange-yellow. Wing at least 3 mm long....................................... gynaptera Fuller & Lee

9. Anal tube brown..................................................................................... 10

- Anal tube yellow contrasting with brown epandrium ( Fig. 11 ). (Base of hind femur as Fig. 14 )......... termitophila Disney

10. Base of hind femur as Fig. 10 ......................................................... nigricorpus new species

- Base of hind femur as Fig. 15 .............................................................. ctenophora Disney

Figures

FIGURES 15–16. Diplonevra males, posterior faces of bases of hind femora: (15) D. ctenophora; (16) D. termispinosa. Scale bar = 0.1 mm.

FIGURES 13–14. Diplonevra males, posterior faces of bases of hind femora: (13) D. peregrina; (14) D. termitophila. Scale bar = 0.1 mm.

FIGURES 1–2. Diplonevra collesi male: (1) left face of hypopygium; (2) posterior face of base of hind femur. Scale bars = 0.1 mm.

FIGURES 11–12. Diplonevra males, left faces of hypopygia: (11) D. termitophila (S = surstylus); (12) D. predicta. Scale bars = 0.1 mm.

FIGURES 3–5. Diplonevra fumosa male: (3) posterior face of base of hind femur; (4) right face of epandrium and anal tube; (5) left face of hypopygium. Scale bars = 0.1 mm.

FIGURES 9–10. Diplonevra nigricorpus male: (9) left face of hypopygium; (10) posterior face of base of hind femur. Scale bars = 0.1 mm.