More Bee Flies at WTB? Office: Dipalta serpentina

Subject:  Bee Flies are Dipalta serpentina
Location:  Mount Washington, Los Angeles, California
September 17, 2016 1:30 PM
Earlier in the week, we posted an image of a Bee Fly we identified as
Villa lateralis and we wrote about a brown Bee Fly that we were unable to capture as an image.  Well, today we took several images of the same brown Bee Fly species, and as the afternoon progressed, we got additional images.  At one point, we got images of four individuals taking nectar from the blooming chives, and after putting the camera away, we spotted a fifth individual.  We are relatively certain we have correctly identified these Bee Flies as Dipalta serpentina thanks to this BugGuide image.  According to BugGuide:  “For many years it was stated that Dipalta were parasitoids of antlion larvae. …  However, the 1989 paper by Leech & Leech demonstrated a clear instance of Dipalta serpentina parasitizing the pupal stage of an antlion (rather than the larval stage). D. serpentina might also parasitizes antlion larvae, though it seems to be in question (earlier observers may have not observed carefully enough to distinguish between larval & pupal parasitism).”

Bee Fly
Bee Fly
Bee Fly
Bee Fly
Two Bee Flies
Two Bee Flies
And then there were four Bee Flies
And then there were four Bee Flies

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