The full reference for citation code Russel1941 is:
Russell, L.M. 1941.
A classification of the scale insect genus Asterolecanium.
United States Department of Agriculture, Miscellaneous Publications 424: 1-319.
[Russel1941]
Notes:
A thorough classificatory study of the genus covering the 92 forms previously assigned to it and adding 83 new species.