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View Thread :: Identification queries :: Diptera (eggs, larvae, pupae)
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Two kinds of larvae
#1 Print Post
Posted on 20-10-2005 06:12
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Location: Paris (France)
Posts: 1292
Joined: 21.04.05


On the photo below, we have a Syrphid larva on the left. But what are the two other ones (with 5 or 6 rows of spikes)? On the young sprouts of a loquat tree (Eriobotrya japonica) infested with aphids.

Thanks for any clue.
Pierre Duhem
#2 Print Post
Posted on 20-10-2005 07:15

Location: Lithuania
Posts: 304
Joined: 27.01.05

Fannia larvae (Fanniidae) look quite similar, but that's only a guess, because I don't know if any of them feed on aphids.
Jan Willem
#3 Print Post
Posted on 20-10-2005 07:42
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Location: Waalwijk, The Netherlands
Posts: 1877
Joined: 24.07.04


I found the following on the internet concerning Fannia canicularis:

Feeding Habits -- Adult flies feed on various liquids and are often attracted to aphid-infested plants by the presence of honeydew (a sweet, sticky aphid excretion). Larvae typically consume decaying organic matter and excrement but have been known to parasitize the intestinal tract of man and animals. In some areas, lesser house fly larvae are the predominant maggots breeding in chicken manure.

So you see, finding Fannia larvae on aphid-infested plants is very well possible.

Jan Willem
#4 Print Post
Posted on 20-10-2005 09:01
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Location: Paris (France)
Posts: 1292
Joined: 21.04.05


Thanks to both of you.

On the other hand, while I'm not sure, I think they feed on aphids. Searching on Cyrille Dussaix's Web site (http://perso.wana...aix/L.html), I found that Paragus pecchiolii have very similar larvae. This would leave us in the Syrphids.
Pierre Duhem
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