1960•The Canadian EntomologistRequires access
Another Holarctic Species of Tabanidae (Diptera)
Cornelius B. Philip
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Abstract
The species of the genus Hybomitra (Tylostypia) have been most vigorous of the family Tabanidae in colonizing the boreal regions. However, the number of holarctic Tabanidae of this genus is surprisingly few in consideration of the 53 species assigned to North America and the 86 to Eurasia. Only H. sexfasciata (Hine; borealis “Lw.” of authors), H. aequetincta (Becker) and H. epistates (O.S.) in addition to Chrysops nigripes Zett. have crossed the northern Atlantic and/or Pacific Oceans (Philip, 1956). It is not surprising therefore to discover that there is an additional holarctic species which has been known under two different names in the Old and New Worlds.