Sarcoptiformes 359 



3. Cederhjelmia Oudemans, 1931 



Type. Cederhjelmia quadriuncinata Oudemans, 1931 



4. Chiropteranoetus Womersley, 1942 



Type. Chiropteranoetus chalinoiobus Womersley, 1942 



5. Creutzeria Oudemans, 1932 



Type. Creutzeria tobaica Oudemans, 1932 



6. Glyphanoetus Oudemans, 1929 



Type. Glyphanoetus fulmeki Oudemans, 1929 



7. Histiostoma Kramer, 1876 (= Zschachia Oudemans, 1929) 



Type. Hypopus feroniarum Dufour, 1839 (= Tyroglyphus rostroser- 

 ratiis Megnin = Histiostoma pectineum Kramer, 1876) 



8. Mauduytia Oudemans, 1929 



Type. Anoetus tropicus Oudemans, 1911 



9. Myianoetus Oudemans, 1929 



Type. Acarus muscarum Linnaeus, 1758 



10. Prowichmannia Radford, 1950 (= Wichmannia Oudemans, 1929, 



nom. praeocc.) 

 Type. Histiostoma spiniferum Michael, 1901 



11. 5W/efl Oudemans, 1929 



Type. Histiostoma pulchrum Kramer, 1886 



12. Zwickia Oudemans, 1924 



Type. Anoetus guentheri Oudemans, 1915 



Discussion: The Anoetidae are usually to be found in damp places 

 such as in the sap of trees around wounds, in rotten damp fungi, in 

 Drosophila cultures, in rotting potatoes, and in similar habitats. The 

 deutonymphs. hypopial forms, or travelers are to be found on insects. 

 One of our most common species is Histiostoma jeroniarwn (Dufour). 

 Michael 1901 gives the following information under habitat. "Megnin 

 found the species originally wading in great quantities in the thin film 

 of liquid which covers decaying mushrooms. It is hardly an exaggera- 

 tion to say that it may be found on all kinds of damp, decaying, soft 

 vegetation which has substantial thickness; it is perhaps most abundant 

 on fungi and roots, but it is very generally distributed; it is extremely 

 abundant. The species has been recorded in France, Germany, Italy, 

 and Switzerland; it is found in all parts of England. It is, I think, a 

 follower, not an initiator of decay." The life cycle of Zwickia guen- 

 theri Oudemans is well illustrated in Vitzthum 1931; the larval, pro- 

 tonymphal, deutonymphal (hypopial or traveling stage), tritonymphal, 

 and adult (male and female) stages are represented. Womersley 1941 

 gives a key to the genera of the Anoetidae based upon the deuto- 

 nymphs. 



