St Mark's flies

GardenersHelper

GardenersHelper

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Nick
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Captured hand-held a couple of days ago in our garden. Captured with FZ330, Raynox 150 and KX800 twin flash. Batch processed in DXO Optics Pro and Silkypix Developer Pro, with image-specific adjustments in Lightroom. There are 1300 pixel high versions in this album at Flickr.

#1 Male - large eyes

1162 02 2017_04_29 P1220402_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#2 Female - small eyes

1162 12 2017_04_29 P1220431_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#3 Female

1162 13 2017_04_29 P1220432_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#4 Female

1162 14 2017_04_29 P1220437_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#5 Female

1162 15 2017_04_29 P1220442_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#6 Male

1162 48 2017_04_29 P1220577_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#7 Male

1162 50 2017_04_29 P1220581_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr

#8 Male

1162 63 2017_04_29 P1220733_DxO 0100RAW01cP SP7 LR6 1300h by gardenersassistant, on Flickr
 
Great series of shots Nick, these are very similar to the fever fly. The difference between them can be found on the front legs.
 
Ajophotog said:
Great series of shots Nick, these are very similar to the fever fly. The difference between them can be found on the front legs.
Click to expand...

Thanks Alby, that is very helpful. It sent me off to look for the difference (I have not previously heard of the Fever fly). It seems that some of these are definitely St Mark's flies, because I can see the forward point spine mentioned at http://www.bugsandweeds.co.uk/flies p1.html - "The single, strong, forward pointing spine on the outside of the tibia of the front legs ... is an identifying feature of the Bibio family, helping to distinguish it from the similar Dilophus family - to which the fever-fly ... belongs."

Are the others St Mark's flies too? I don't know. What I haven't been able to find is a good illustration of the diagnostic feature of the Fever fly, the ring of spines around the bottom of the front leg tibia.
 
GardenersHelper said:
Thanks Alby, that is very helpful. It sent me off to look for the difference (I have not previously heard of the Fever fly). It seems that some of these are definitely St Mark's flies, because I can see the forward point spine mentioned at http://www.bugsandweeds.co.uk/flies p1.html - "The single, strong, forward pointing spine on the outside of the tibia of the front legs ... is an identifying feature of the Bibio family, helping to distinguish it from the similar Dilophus family - to which the fever-fly ... belongs."

Are the others St Mark's flies too? I don't know. What I haven't been able to find is a good illustration of the diagnostic feature of the Fever fly, the ring of spines around the bottom of the front leg tibia.
Click to expand...
I see you found my fever fly and the difference, all your other shots are st marks. ;)
 
Excellent set Nick seen plenty of these (Both Fever and Marks) flying about recently :D
 
Lovely shots as always Nick with some as always great lighting.
 
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