What's That Bug? does not endorse extermination

What is this bug? Is it dangerous?
Location: Katoomba, NSW, Australia
April 20, 2012 5:40 am
We’ve been finding these bugs all over outside and my little boy has been playing with them. I just need to make sure they are not dangerous since they are all over the place lately.
Signature: -Autumn and Mark

Wingless Fly: Chiromyzinae species

Dear Autumn and Mark,
In January 2007 we received a similar photo from Australia.  We knew the creature was a fly, but we were uncertain if it was wingless or if the wings were somehow lost.  We eventually learned it was a wingless female fly in the Soldier Fly subfamily Chiromyzinae.  At that time, there was no information available on the internet.  Now we located a Tree of Life web page posted in 2008 that states:  “Chiromyzinae is an unusual group of soldier flies as the larvae are predominantly phytophagous, with many species feeding on the roots of grasses (James 1981; Oosterbroek 1998).”  These wingless Soldier Flies are harmless.

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What's That Bug? does not endorse extermination
Location: Australia

3 Responses to Wingless Soldier Fly in the subfamily Chiromyzinae from Australia

  1. Elizabeth Hassan says:

    I’ from Australia and we have those wingless flies too but only at certain times of the year, ie, Autumn. I have tried to identify them too and came up with “wingless stratiomyidae”. I couldn’t find any detailed information about them, only that the larvae are flattened! Great, but from my own observations l think that the one in the photo is a female. I see them crawling up vertical structures, eg walls, plant stems etc. l think they are females looking for a crevice in which to deposit their eggs. Once l saw one with another similar looking creature which was considerably smaller and l wonder if this was the male.

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