Botflies as pests

Nature 
Botfly is the name applied to dipterous insects of the families Gasterophilidae, Cuterebridae and Oestridae, the larvae of which are parasitic on mammals. In tropical America, the human botfly (which attacks livestock and deer but rarely man), causes great loss of beef and hides.
Aggravated by 
Value(s) 
Type 
(E) Emanations of other problems