Bradysia

Vilkamaa, Pekka, Hippa, Heikki & Mohrig, Werner, 2012, The genus Bradysia Winnertz (Diptera, Sciaridae) in New Caledonia, with the description of thirteen new species, Zootaxa 3489, pp. 25-44 : 26

Key to New Caledonian species of Bradysia

1. Setose intercoxal lobe of hypopygium present............................................................... 2

- Intercoxal lobe of hypopygium absent, at most gonocoxite basally with dense setosity............................... 3

2. Intercoxal lobe of hypopygium with a few long setae, apical tooth of gonostylus present................. B. stricta sp. n.

- Intercoxal lobe of hypopygium with many short setae, apical tooth of gonostylus absent............... B. nudilobata sp. n.

3. Gonostylus basally angulate, dorsally hollowed, with spinelike apical setae; tegmen with very long apodemes................................................................................................. B. planistylata sp. n.

- Gonostylus straight or evenly curved, at most mesially impressed, with unspecialized apical setae, tegmen with moderate apo- demes...............................................................................................4

4. Apical tooth of gonostylus present........................................................................ 5

- Apical tooth of gonostylus absent......................................................................... 6

5. Gonostylar megasetae mostly 3–5 in number, equally strong, one in more ventral position than the others...................................................................................................... B. aequispina sp. n.

- Gonostylar megasetae mostly 5–6 in number, some stronger than the others, all in one subapical group.... B. clavistylis sp. n.

6. Gonostylar megasetae 2 in number.......................................................... B. gemellata sp. n.

- Gonostylar megasetae 3 or more in number................................................................. 7

7. All gonostylar megasetae in one apical-subapical group....................................................... 8

- In addition to apical-subapical group, one gonostylar megaseta placed apart in a more lateral position.................. 11

8. Gonostylar megasetae distinctly longer than nearby ordinary setae............................................... 9

- Gonostylar megasetae about as long as nearby ordinary setae.................................................. 10

9. Gonostylus nearly evenly narrow from base to apex, antennal flagellomeres with long and sparse setosity.... B. filigera sp. n.

- Gonostylus distinctly broadened at its middle, antennal flagellomeres with short and dense setosity........ B. gibbosa sp. n.

10. Lateral margin of gonostylus evenly curved, some of gonostylar megasetae larger than others, body of flagellomere 4 less than 2x as long as broad......................................................................... B. spissa sp. n.

- Lateral margin of gonostylus nearly straight, all gonostylar megasetae subequal in size, body of antennal flagellomere 4 more than 2x as long as broad.................................................................... B. melina sp. n.

11. Gonostylar megasetae 7 in number, basal part of gonocoxa with normal, sparse setosity............... .. B. centidens sp. n.

- Gonostylar megasetae 4 or 5 in number, basal part of gonocoxa with dense setosity................................ 12

12. Gonostylus narrowed and impressed at basal and apical thirds, with all megasetae well apart from each other, body of flagellomere 4 at most 2.6x as long as broad.................................................. B. paucidens sp. n.

- Gonostylus evenly narrowed towards base and apex, megasetae in one tight group except the most lateral megaseta, body of flagellomere 4 at least 3x as long as broad.................................................... B. seticornis sp. n.