194 Acarology 



4. Ciinaxoides Baker & Hoffmann, 1948 (= Eiipalus Koch, 1838 nom. 



praeocc. — Haleupalus Radford, 1950) 

 Type. Eiipalus croceiis Koch, 1838 



5. Rosenhofia Oudemans, 1922 



Type. Rosenhofia niachairodus Oudemans, 1922 



6. Scinila Berlese, 1887 



Type. Scinila inipressa Berlese, 1887 



Discussion: No species has been reported as of great economic im- 

 portance, although they are predators on other mites and small insects. 

 The family is widely distributed and many species are more or less 

 cosmopolitan. Cimaxa capreolus (Berlese) is a European species to 

 be found in Africa, the United States, and Mexico; C. setirostris (Her- 

 mann) is another species which is distributed throughout the world, 

 as is C. inennis (Tragardh) and C. taurus (Kramer). This latter spe- 

 cies is rather distinctive in having immensely long palpi with long inner 

 spines and apophyses and is fairly common in leaves or leaf mold in 

 the northeastern United States. Cimaxoides parvus (Ewing) is from 

 Iowa, where it was described as a "real enemy of the oyster shell 

 scale," although it was not numerous. C. pectinatus (Ewing) is dis- 

 tributed from the United States (Illinois) to Panama. 



Larvae and nymphs are similar to the adults. Males are similar to 

 females except in having much smaller genital plates and perhaps other 

 minor variations, as in Cimaxa capreolus (Berlese) in which the male 

 has a much smaller apophysis on the third palpal segment than does 

 the female. Nymphal forms appear to have three pairs of genital setae 

 rather than four, as do the adults. A nymph of Cunaxoides pectinatus 

 (Ewing) has the three pairs of genital setae, a small body and long 

 legs, and no dorsal shield but the entire body is striated. Otherwise it 

 is similar to the adult. The mites are usually to be found in moss, hu- 

 mus, and on leaves. 



The family appears to be closely related to the Halacaridae, and it 

 has been stated that Bonzia is a "landgoing" halacarid. 



References: 



Baker, E. W., and Anita Hoffmann. 1948. Acaros de la familia Cunaxidae. 



Anales de la Escuela Nacional de Ciencias Biologicas V(3-4):229- 



273. 

 Ewing, H. E. 1917. New Acarina. Part II. Descriptions of new species and 



varieties from Iowa, Missouri, Illinois, Indiana, and Ohio. Bull. Amer. 



Mus. Nat. Hist. 37(2): 151. 



