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Archive 2011 · Hoverfly "nasal" opening ?

LordV
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p.1 #1 · Hoverfly "nasal" opening ?

Trapped a hoverfly (Epistrophe elegans) in the kitchen yesterday and gave it some sugar/honey water to feed on so i could photograph it (#1).
It stopped feeding and moved a bit and then decided to have a wash and brushup so I continued to photograph it. I was then puzzled by a facial opening that appeared and disappeared (#2,#3 and animation). Had not noticed this when it was actually feeding. and not noticed this at all on any hoverfly before.

Brian v.

May 03, 2011 at 02:36 AM

michael kilner
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p.1 #2 · Hoverfly "nasal" opening ?

excellent shots,not noticed this myself before either,have to check my close ups

May 03, 2011 at 04:10 AM

orionmystery
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p.1 #3 · Hoverfly "nasal" opening ?

Cool shots and gif. Never noticed this either

. Maybe the folks at DI can explain about this?

May 03, 2011 at 05:53 AM

birdied
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p.1 #4 · Hoverfly "nasal" opening ?

Marvelous shots and gif, Brian !

May 03, 2011 at 06:48 AM

M Vers
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p.1 #5 · Hoverfly "nasal" opening ?

Very interesting observation, Bri--can't say I've ever noticed it either....

May 03, 2011 at 09:34 AM

kmunroe
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p.1 #6 · Hoverfly "nasal" opening ?

interesting images Brian

May 03, 2011 at 05:34 PM

LordV
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p.1 #7 · Hoverfly "nasal" opening ?

Thanks for the comments

Suspect this may be a case of something not being properly stuck together

Brian v.

May 04, 2011 at 01:26 AM

Bred
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p.1 #8 · Hoverfly "nasal" opening ?

That is a very nice Hair-lip hoverfly Brian

May 04, 2011 at 02:31 AM

remus
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p.1 #9 · Hoverfly "nasal" opening ?

Top quality,Brian.
Excellent magnifications control, light
and focus.
A pleasure to look on!
Regards,
Remy

May 04, 2011 at 04:30 AM

LordV
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p.1 #10 · Hoverfly "nasal" opening ?

Thanks Bred and Remy for the comments

Brian v.

May 04, 2011 at 12:55 PM

Goldenorfe
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p.1 #11 · Hoverfly "nasal" opening ?

very interesting brian, thought of a blow hole on a whale

have to keep a look out see if its more common

phil

May 05, 2011 at 12:56 PM

smccann
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p.1 #12 · Hoverfly "nasal" opening ?

That is definitely very strange. Syrphids are not supposed to have a ptlinum, which is what I thought of when I saw this....

May 05, 2011 at 11:34 PM

LordV
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p.1 #13 · Hoverfly "nasal" opening ?

Thanks Phil and smccann for the comments.

Certainly never noticed this before and wonder if it's just a developmental error where the face was not properly sealed and is being opened by certain proboscis movements?

[EDIT] - assume you meant Ptilinum ?
Brian v.

May 06, 2011 at 01:29 AM

smccann
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p.1 #14 · Hoverfly "nasal" opening ?

Yep, Ptilinum is correct. My keyboard is a little wonky after having chocolate milk spilled on it!

May 06, 2011 at 07:57 AM

gmazza
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p.1 #15 · Hoverfly "nasal" opening ?

Very very interesting.

May 06, 2011 at 07:33 PM

droffler
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p.1 #16 · Hoverfly "nasal" opening ?

Great set Brian. Amazing animated shot.
Doug

May 06, 2011 at 09:00 PM

LordV
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p.1 #17 · Hoverfly "nasal" opening ?

Thanks Gustavo and Doug for the comments

Brian v.

May 07, 2011 at 01:17 AM


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