72. 



11. Female tail slender, 8.8j male tail 5-5 anal body diametfjrs long 



cocophilus (Coiob, 1919) Qoodey, 1933 



Female tail 5; male tail 2 anal body diaiaeters lon,^; 12 



12. Female length 590 microns or more; tail terminus round 



hnnti Steiner, 1935 



Female length less than 500 microns; tail terminus acute 

 steineri Puhm, 1956 



13. Tail simply conoid, without mucron or other structural modifications; 

 spear with huf^e knobs; esophagus swollen imraediately behind soear 

 knobs, then tanerinq; to the esophageal bulb . . . megadorus Allen, 19)41 

 Tail with mucron or other structural modifications; spesr with small 

 or without knobs; esophagus narrow from behind spear to esophageal 

 bulb " . T lU 



lU. Tail with k sucker-like or 3 leaf-like appendages at terminus . . . 15 

 Tail without sucker or leaf -like appendages at terminus; terminus 

 provided with a mucron 16 



15. Tail with U sucker-like terminal anpendages 



penardi (Steiner, 191i;) McBeth, 1937 



Tail with 3 leaf-like terminal aopendages 

 sphaerocephalus Goodey, 1953 



16. Head with internal framework 17 



Head without distinct framework 22 



17. Minute species, less than 320 microns long 



pusillus (Thorne, 1939) Filipjev <k Stekhoven, I9UI 



Body larger, not under UOO microns long 18 



13. Tail terminus bifurcate or provided with a somewhat star-shaped mucron 



19 



Tail terminus provided with a simple mncron only. 21 



19» Tail terminus bifurcate 



bicaudatus (Imamura, 1931) Filipjev & Stekhoven, I9UI 



Tail terrainus provided with a somewhat star-shaped mucron 20 



20. Lateral fields 1/5 as wide as body diameter, marked by four incisures 

 which are equidistant from each other 



coffeao (Zimmeraiann, I898) Steiner, 1937 



Lateral fields 1/U as wide as body diameter, the field formed by the 

 inner 2 incisures narrower than the field on each side 

 besseyi Christie, 19h2 



21. Head swollen, wider than neck, lateral fields marked by h incisures 



ritzema-bosi (Schwartz, 1911) Steiner -& Buhrer, 1932 



Head not swollen, lateral fields marked by 2 incisures 

 fragariae (Ritzema Bos, 1591) Chj'istie, 1932 



