Trombidiformes 205 



5. Caligonella Berlese, 1910 



Type. Stigmaeiis humilis Koch, 1838 



6. Caligonus Koch, 1836 



Type, Caligonus piger Koch, 1838 



7. Eupalopsellus Sellnick, 1949 



Type. Eupalopsellus olandicus Sellnick, 1949 



8. Eupalopsis C2inQsXnm, \S^6 



Type. Eupalus maseriensis Canestrini and Fanzago, 1876 



9. Eustigmaeus ^qv\qsq, 1910 {— Liostigmaeus Thor, 1930) 

 Type. Stigmaeus kermesinus Koch, 1841 



10. Homocaligus Berlese, 1910 



Type. Stigmaeus scapularis Koch, 1838 



11. Eedermulleria Oudtmsins, 1923 

 Type. Caligonus segnis Koch, 1836 



12. Macrostigmaeus Berlese, 1910 



Type. Stigmaeus {Macrostigmaeus) serpentinus Berlese, 1910 



13. Mediolata R. Canestrini, 1890 {- Zetsellia Oudemans, 1927) 

 Type. Stigmaeus longirostris Berlese, 1887 



14. N^o/?/2y//oZ)/w5 Berlese, 1886 



Type. Neophyllobius elegans Berlese, 1886 



15. Podaia Oudemans, 1923 



Type. Acarus rubens Schrank, 1781 



16. Stigmaeus Koch, 1836 (= Stigmaeodes Canestrini, 1890) 

 Type. Stigmaeus cruentus Koch, 1836 



17. Storchia Oudemans, 1923 



Type. Caligonus robustus Berlese, 1885 



18. K///^/-5/fl Oudemans, 1927 



Type. Villersia vietsi Oudemans, 1927 



Discussion: Although distributed throughout the world only a few 

 species are yet known. They are to be found in moss, lichens, 

 straw, and leaves. At Santa Paula, California, Mediolata terminalus 

 (Quayle) was seen preying on the citrus bud mite, Aceria sheldoni 

 (Ewing) on lemon. The chelicerae were inserted into the bud mites 

 and the body contents sucked out. Owing to the small numbers, its 

 relative slowness, and the usual inaccessibility of the minute eriophy- 

 ids beneath bud scales and fruit buttons, this predator is of no great 

 value. No details of their biology are known other than that the eggs 

 are red and laid singly beneath the fruit buttons. Eupalopsis pinicola 

 Oudemans, a European species, has been collected in eastern Canada 

 on apples and is probably predaceous on the other apple mites; it is 

 predaceous on scale insects in Europe. Mediolata nova-scotiae Nesbitt 



