MITES OF FAMILY CHEYLETIDAE — BAKER 309 



The mite was found associated with the citrus bud mite, Aceria 

 sheldoni (Ewing), and is probably predaceous on that species. 



Genus CHELETOPSIS Oudemans 



Cheletopsis Oudemans, Ent. Ber. Nederl. Ver., vol. 1, fasc. 18, p. 163, 1904. 

 Type, Cheyhtits norneri Poppe (original designation) . 



KEY TO THE SPECIES OF CHELETOPSIS * 



1. Propodosomatic shield trapezoidal with straight rear edge ; the 3 pairs of setae 



are outside the shield 2 



Propodosomatic shield usually oval, with strongly rounded posterior margin ; 

 the 3 paii's of setae on the shield major Oudemans 



2. Body very long, narrow ; legs longer than body is broad 8 



Body at most twice as long as broad ; legs shorter than width of body. 



anax Oudemans 



3. The 2 pairs of anterior marginal shield setae of equal length 4 



The inner anterior and posterior pairs of marginal setae of shields short, of 



equal length ; the outer anterior pair about 3 times as long as inner and 

 posterior pairs impavida Oudemans 



4. Propodosomatic shield at most lYz times as long as wide; the lateral dorsal 



setae over trochanter III long 5 



Propodosomatic shield at least twice as long as wide; the lateral dorsal 

 setae over trochanter III short 6 



5. The lateral dorsal setae over trochanter IV short, about as long as trochanter. 



norneri (Poppe) 

 The lateral dorsal setae over trochanter IV long, twice as long as trochanter. 



basilica Oudemans 



6. Claw of palpus with 2 basal teeth animosa Oudemans 



Claw of palpus with 1 basal tooth magnanima Oudemans 



CHELETOPSIS MAJOR Oudemans 



Cheyletus major Trouessabt, in Berlese, Acari, Myriapoda et Scorpiones hucusque 



in Italia, Prostigmata, pp. 74-75, 1893 {nomen nudum). 

 Cheletopsis major Oihjemans, Ent. Ber. Nederl. Ver., vol. 1, fasc. 18, p. 163, 1904 ; 



Mem. Soc. Zool. France, vol. 19, pp. 200-204, fig. 62, 1906. 



Type habitat. — On Hemiprocne mystacea {^Dendrochelidon mys- 

 tacea). 



Type locality. — New Guinea. 



CHELETOPSIS ANAX Oudemans 



Cheletopsis anax Oudemans, Ent. Ber. Nederl. Ver., vol. 1, fasc. 19, p. 170, 1904 ; 

 Mem. Soc. Zool. France, vol. 19, pp. 195-200, figs. 59-01, 1906. 



Type habitat. — In shafts of wing feathers of Crocethia alba ( = To- 

 tanus calidris) . 



Type locality. — France. 



* None of these species is represented in the National Museum. 



