Arctoseius butleri (Hughes , 1948)

Tristomus butleri Hughes, 1948: 139.

Arctoseius butleri.— Evans, 1955: 288; 1958 a: 187; Hughes, 1961: 225; 1976: 314. Tristomus butleri.— Hirschmann, 1962: 48.

Leioseius (Arctoseius) butleri.— Bernhard, 1963: 163.

TYPE DEPOSITORY: not stated.

TYPE LOCALITY AND HABITAT: Belfast, Ireland, in sawdust.