Thread subject: Diptera.info :: New fly

Posted by jorgemotalmeida on 14-07-2006 21:20
#1
Taken today - 14th July 2006 - in Silgueiros - Viseu - PORTUGAL with nikon coolpix 3100.

Temperatures very near 40?C... (almost 6 p.m.)

Don?t know which fly can be... ID please.

static.flickr.com/73/189602119_ab05fa1dc7.jpg

To see it larger:
http://www.flickr...119&size=o

Posted by Nikita Vikhrev on 14-07-2006 21:29
#2
Syrphidae, as far as I know Eristalinus.

Posted by jorgemotalmeida on 14-07-2006 22:44
#3
Eristalinus aeneus (Scopoli 1763)
Eristalinus megacephalus (Rossi 1794)
Eristalinus sepulchralis (Linnaeus 1758)
Eristalinus taeniops (Wiedemann 1818)

thank you.
In Portugal there are 4 Eristalinus spp. according to the fauna europaea.

Which of these are the most probable for this fly?


Posted by Kahis on 15-07-2006 08:19
#4
Possibly Eristalinus sepulchralis (Linnaeus 1758). It is not aeneus nor taeniops. I have no idea what megacephalus looks like.

Posted by Tony Irwin on 15-07-2006 16:05
#5
This has very pale hind knees, compared to most sepulchralis I have seen. Also it doesn't look "crumpled" enough for that species, and the head looks to be too big. Is that a clue, I wonder?Smile

Posted by Xespok on 16-07-2006 20:26
#6
Can you explain me what the major differences should be between the various species in the genus. I am also struggling with a few images like the one above. Also the web seems to have a lot of misidentified images within this genus.