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Species Laphria posticata - Boreal Laphria

robber fly - Laphria posticata - female Laphria posticata? - Laphria posticata - male Laphria rescued - Laphria posticata - female Laphria posticata - male Asilid - Laphria posticata Robber Fly (Laphria sp.?) - Laphria posticata Robber fly - Laphria posticata - female Robber Fly 640 - Laphria posticata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon (Orthorrhapha)
Superfamily Asiloidea
Family Asilidae (Robber Flies)
Subfamily Laphriinae
Genus Laphria
Species posticata (Boreal Laphria)
Explanation of Names
Laphria posticata Say 1824

Boreal Laphria: https://www.robberfliesoftheworld.com/NA_CommonNames.php
Identification
Two forms, which may be good species (1). Nominate posticata shows black scutellar bristles, and yellow hairs on lateral portions of third abdominal tergite, and all of the fourth and fifth tergites. The form scutellaris has yellowish scutellar bristles, and shows yellow on lateral portions of tergite three, and on entirety of tergites 4-7.(1)
Range
most of NA (NB-NT-YT to GA-IN-IL-SD--)(2)
Habitat
Marked preference for white pine (Pinus strobus) logs and stumps.(3) I have also collected one male territorial on a red pine (Pinus resinosa) log (BC).