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Huzzah! 🥳

One of our garden's superstars returned today after an absence of three months.

This tachnid is a female Dexia vacua – so rare in central & western Europe that it was thought extinct until recently.

This is the third I've seen here this year, making me the world's leading observer on iNaturalist 🙂

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📷️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️️
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A long-legged fly seen in half-profile, standing on some small green leaves. The fly's legs are mostly brown with many black bristles. The head is white and yellow, with well-separated oval red compound eyes. The thorax is dusted yellow with small longitudinal dark stripes and many black bristles. The abdomen is a lighter grey-yellow with black bands across half of each tergite, again with many black bristles. The wings are clear dark grey with amber roots.

#photography #macrophotography #bugoftheday #heidelberg #insectsofmastodon #backgardenentomology

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Caricamento...

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Caricamento...

FWIW, it's fairly easy to confuse D. vacua with the more common Dexiosoma caninum.

But there are several key differences in where black bristles are found (or not) on the thorax & abdomen, along with differences in the lengths of key wing veins.

This specimen clearly meets the conditions for being a female Dexia vacua.

For more insight on the specific differences, this is a great resource:
https://tachinidae.org.uk/blog/dexiosoma-caninum-vs-dexia-vacua/

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