MITES OF FAMILY CHEYLETIDAE — BAKER 277 



16. A distinct ventral condyle on venter of rostrum over trochanter; shoulder 



seta smooth ; coxa III with a lanceolate-serrate seta rapax Oudemans 



A minute ventral condyle on venter of rostrum over trochanter ; shoulder seta 

 pilose ; coxa III with a simple pilose seta m^alaccensis Oudemans 



Males 



1. Palpal claw with a single tooth 2 



Palpal claw with more than 1 tooth 15 



2. Dorsal anterior plate with 5 pairs of setae 3 



Dorsal anterior plate with 6 paii's of setae 4 



3. Palpal claw with a strong basal tooth ; palpal femoral seta extending to tip 



of palpal claw trouessarti Oudemans 



Palpal claw with a weak, hardly discernible basal tooth ; palpal femoral seta 

 not surpassing palpal tibia trux Rodendorf 



4. Femur of palpus swollen 5 



Femur of palpus not swollen 8 



5. Dorsal posterior plate with 5 pairs of setae 6 



Dorsal posterior plate with 6 ' pairs of setae malaccensis Oudemans 



6. No pilose seta between cosal plates II and III 7 



A pilose seta between coxal plates II and III fortis Oudemans 



7. Small tooth on palpal claw ; inner palpal comb without teeth on proximal 



portion audax Oudemans 



Large tooth on palpal claw ; inner palpal comb with teeth along entire inner 

 edge rapax Oudemans 



8. Palpal claw tooth lateral 9 



Palpal claw tooth more or less dorsal alacer Oudemans 



9. Palpal claw tooth distinct, width equal to length 10 



Palpal claw tooth very weak, hardly discernible, much longer than wide. 



carnif ex Zakhvatkin 



10. Inner comb with 5 or 6 teeth 11 



Inner comb with 8 or more teeth 12 



11. Rostrum narrow, with smooth edges venator Vitzthum 



Rostrum broadening toward rear and with tuberculate edges. 



rabiosus Rodendorf 



12. Inner comb with 8 or 9 teeth 13 



Inner comb with about 18 teeth acer Oudemans 



13. Anterior to peritreme 4-6 longitudinal rows of tubercles 14 



Anterior to peritreme a transvere row of tubercles directed back toward 



peritreme ferox Berlese and Trouessart 



14. Dorsal posterior plate with straight lateral border ; femur of palpus without 



swelling ; in front of peritreme is a space without tubercles. 



intrepidus Oudemans 

 Dorsal posterior plate with concave lateral borders ; femur of palpus with 

 slight inner swelling ; a mass of tubercles in front of peritreme. 



vorax Oudemans 



15. Rostrum with lateral teeth 16 



Rostrum smooth, without lateral teeth ; palpal claw with 2 small but well- 

 defined teeth eruditus (Schrank) 



* Based on Oudeman's key (1906). The shield boundary is not distinct, and there may 

 be five pairs of setae present, thus keying out to rapax, which, when types can be studied, 

 may prove to be the same as malaccensis. 



