The nematode genus Fergusobia (Nematoda: Neotylenchidae): molecular phylogeny, descriptions of clades and associated galls, host plants and Fergusonina fly larvae 2633 Davies, Kerrie A. Ye, Weimin Giblin-Davis, Robin M. Taylor, Gary S. Scheffer, Sonja Thomas, W. Kelley Zootaxa 2010 2010-10-01 2633 1 1 66 [613,751,1797,1823] Secernentea Fergusobiidae Fergusobia Animalia Tylenchida 44 45 Nematoda genus    2.  Fergusobiafrom flower bud galls ........................................................................................  F. ptychocarpae Fergusobiafrom axial bud (‘stem’) galls ........................................................................................  F. magna Fergusobiafrom leaf pea galls ........................................................................................ F.morphospecies 3   3. Males with bursa occupying 25–55% body length, angular spicules............................. F.morphospecies 1 Maleswith bursa occupying 60–80% body length, arcuate spicules ............................. F.morphospecies 2   4.  Fergusobiafrom terminal shoot bud galls....................................................................................................5  Fergusobiafrom ‘leafy’ leaf bud galls.........................................................................................................6  Fergusobiafrom flower bud galls................................................................................................................8  Fergusobiafrom leaf pea galls...................................................................................................................12  Fergusobiafrom flat leaf galls...................................................................................................................14  Fergusobiafrom style galls ........................................................................................... F.morphospecies 15  Fergusobiafrom axial bud (‘stem’) galls ...................................................................... F.morphospecies 10  Fergusobiafrom axial pea galls .................................................................................... F.morphospecies 16   5. Males with bursa usually arising in anterior third of nematode ...................................... F.morphospecies 8 Maleswith bursa usually arising at 40–60% of length of nematode............................... F.morphospecies 7 Maleswith bursa usually arising in posterior third of nematode.................................................  F. brittenae   6. Males with bursa arising near excretory pore.................................................................. F.morphospecies 6 Maleswith bursa occupying <50% of body length......................................................................................7   7. From galls on  E. bridgesiana; male tails ca40 µm long.........................................................  F. tumifaciensFromgalls on  E. viminalis; male tails 20–35 µm long .................................................. F. morphospecies 11   8. Males with bursa occupying 66% of body length ....................................................................  F. brevicaudaMales with bursa occupying <60% of body length.....................................................................................9   9. Parthenogenetic females with raised circum-oral area, males with bursa occupying>75% of body length ......... .............................................................................................................................. F.morphospecies 14 Parthenogenetic females with raised circum-oral area, males with bursa occupying ca25% of body length ..... ................................................................................................................................... F. morphospecies 5 Parthenogenetic females without raised circum-oral area..........................................................................10   10. Male tail with truncate tip ...................................................................................................  F. philippinensisMale tail with rounded tip...........................................................................................................................11   11. Males with bursa occupying 15–20% body length ..........................................................................  F. currieiMales with bursa occupying 25–40% body length.......................................................... F.morphospecies 4   12. Males with bursa occupying 30–50% body length .......................................................... F.morphospecies 9 Maleswith bursa occupying <30% body length.........................................................................................13   13. Parthenogenetic female body narrows sharply behind vulva ....................................... F. morphospecies 13 Parthenogenetic female body narrows gradually behind vulva.................................... F. morphospecies 17 14. Parthenogenetic females with hemizonid 7–8 annules in front of secretory pore ..........................  F. fisheriParthenogeneticfemales with hemizonid 1–4 annules in front of secretory pore ........ F. morphospecies 12   15. Males with bursa occupying ca80% body length.......................................................... F.morphospecies 19 Maleswith bursa occupying ca60% body length ....................................................... F. morphospecies 18.