grant burleigh's picture

Fly blowing a bubble?

Observed: 4th March 2013 By: grant burleighgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebratesgrant burleigh’s reputation in Invertebrates
090c
094c
101c
Bubblecomposite
Description:

See Comment

Identifications
Species interactions

No interactions present.

Comments

grant burleigh's picture

Bubble progression

This fly sat immobile, for quite an extended period, on the sunlit bark of an ash tree. I was intrigued by what looked a bubble that was emerging from its mouth (Images 1 -3). My interpretation of the subsequent image sequence [4-10] is that this is a newly emerged fly in process of activating its tongue/proboscis from within a bubble-like coating* that had protected it hitherto.
(*er… “Bubble wrap”?)

jeremyr's picture

antennae

dark antennae on your other example, I notice
http://www.ispot.org.uk/node/317871, whereas here they look reddish

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John Bratton's picture

Yes, the antennae are wrong

Yes, the antennae are wrong shape and colour for Heteromyza. I've had similar-looking flies in the garden that are Lispocephala, but I can't say that is what yours is. Alright, I'll say it might be.

There has been discussion of bubble-blowing on Diptera.info

jeremyr's picture

bubbles

there's one here, apparently blowing bubbles
http://diptera.info/forum/viewthread.php?thread_id=18890&pid=85156

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jeremyr's picture

Lispocephala

it looks very good indeed for L. brachialis Grant which is more of a western species. Time of year is right March - June, but they're out now so I'd try looking in the same spot from today. There should be a stream nearby? It's the only orange one so could possibly be done from a photo, but without a specimen I'd not be certain myself. Perhaps a muscid specialist will have a more definite impression. Have you tried it on DF? Anyway a good find

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Karoopixie's picture

Blowing bubbles

See comment here - http://www.ispotnature.org/node/479974#comment-197447 - if you're interested in why they blow bubbles :-)

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