Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Laphria posticata

Laphria posticata - female Laphria posticata? - Laphria posticata - female Laphria posticata - male Robber Fly IV - Laphria posticata - male Robber - Laphria posticata Robber Fly - Laphria posticata Asilidae - possibly a Laphria sp. - Laphria posticata Laphria - Laphria posticata
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 (Bee-like Robber Flies)
Species posticata (Laphria posticata)
Explanation of Names
Laphria posticata Say 1824
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)
most of NA (NB-NT-YT to GA-IN-IL-SD--)(2)
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).