[Syrphidae] Maggot ID
santos.rojo at ua.es
Sat Oct 21 16:13:25 BST 2006
I agree with Martin Speight that your larvae
belong to genus Volucella. Curiously due my
teaching activity about urban pests, sometime ago
I found a website with very nice photos about
this topic. Unfortunately (for me) was/is in
Swedish or Finnish but the URL remain in my
Bookmark... Apparently the author: Jarmo
Holopainen (University of Kuopio, Finland) show
that the larvae of this genus in relation with
Insect Indoor pests. The species that appear in
his web is identified as Volucella pellucens.
This is the information that appear:
<<Ampiaisvieras (Volucella pellucens) on
asumusten lähellä elävä kookas kukkakärpänen
(Syrphidae), joka toukat loisivat ampiaispesissä.
Syksyisin koteloitumaan siirtyvät suurikokoiset
toukat saattaavat tulla sisätilohin.>>
However I do not use this information in my teach
because I believed that was only accidental (and
do not knew exactly what he said!!) but according
you, can be considered as indoor pest, and... yes
according the biology of most of the species of
this genus ... I believe that this people
have/had a wasps' nests in the roof or close...
please could you confirm us this point?
Graham Rotheray is the best person for the
species identification. He has several papers
about Volucella including a key to the
determination of the larvae of North European
Volucella species, please see:
The Jarmo's website is: http://www.uku.fi/~holopain/stt/
Please look for Volucella in one of the 3 main
links of the web and you can found a very good
photos of larvae very very similar your specimens.
>Yesterday a friend of from the local museum of
><http://www.inatura.at>www.inatura.at asked me
>if I could help him identify a larva which I
>think is a syrphid. The length of the larvae is
>13mm (without stigmata-"horn" which has another
>1mm of length). The larvae have been found
>inside houses in three cities/villages around
>here (Dornbirn, Feldkirch and Egg, all in
>Vorarlberg/Western Austria) during the last week
>- some in a guestroom which is not used very
>often, some in the corner of a room on the floor
>with mice's feces around and some "falling from
>the ceiling" according to the people who brought
>the larva to the inatura.
>Could anyone of you help me identify the species
>or genus? I'd appreciate any kind of information.
>Another thing: What were these maggots doing
>inside the nearly empty rooms? (the people here
>have asked for this kind of information).
>Thanks in advance
>(Photos by Klaus Zimmermann)
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>Attachment converted: Macintosh HD:diptlarvlat.jpg (JPEG/«IC») (0015435A)
>Syrphidae mailing list
>Syrphidae at lists.nottingham.ac.uk
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