I am currently examining the southern extent of Africanized
        honey bees in Argentina. The literature seems to define a
        zone of saturation which exists. The outer fringe of this
        zone corresponds with an isoline representing a mean high
        July temperature (coldest month south of Equator) of 16 C
        degrees (60 F degrees).
 
        The litureture that I have seen is a few years old. Are the
        Africanized honey bees found any further south? Also, are there
        any indications that the vegetation (desert and desert shrub)
        of southern Argentina has limited southern spread? Are there
        any other factors involved in limiting the spread of
        Africanized honey bees?
 
        Any comments would Bee appreciated.
        Thanks
 
        Robert Burke
        Southwest Texas State
        BITNET"RB02817@SWTEXAS"