horn fly

1. TNG pitched a cattle vaccine that tackled the vicious horn fly, a pest that costs the cattle industry around$ 1 billion a year.
   TNG推介的是一种可解决角蝇之害的牛疫苗，角蝇每年给养牛业造成的损失高达10亿美元左右。

noun

1. small black European fly introduced into North America

   Synonym:    Haematobia irritans