• Thereva valida is a Palearctic species of stiletto fly in the family Therevidae. Verrall, G. H., 1909 Stratiomyidae and succeeding families of the Diptera...
    1 KB (81 words) - 12:53, 28 March 2024
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    Thereva is a genus of flies from the family Therevidae commonly known as stiletto flies. T. albohirta Kröber, 1912 T. albopilosa Kröber, 1912 T. albovittata...
    9 KB (413 words) - 01:47, 25 September 2023
  • cliff stiletto Thereva unica - twin-spot stiletto synonym bipunctata Thereva valida - dark northern stiletto Scenopinus fenestralis - house windowfly Scenopinus...
    10 KB (829 words) - 13:41, 2 January 2023