Large Willow Aphid (Tuberolachnus salignus)

            The UK and some say the world's) largest aphid species at 4-5mm. An interesting species, no male has ever been spotted, and may not exist, as the females are born pregnant. This means that the young are genetically identical to their mother. They feed not on the leaves or younger growth on willow trees, preferring to feed through the bark of slightly older branches, and during the late summer/autumn often attract wasps with the large amount of honeydew they produce. They are also the only aphid species with the 'shark's fin' tubercles. It's not known what purpose it serves, although it is uunlikely to be defensive, because as they are willow feeders they are highly toxic! These were on an information board, as usual a rich source of invertebrate life.
   

Taken on: December 29, 2015

Tags:

surrey

aphid

large

willow

thatmacroguy

bug

markhortonphotography

guildford

riverside

nature

reserve

information

board

species

giant

Tuberolachnus

salignus

Tuberolachnus salignus

giant willow aphid

information board

large willow aphid

riverside nature reserve « less

Sets appears in: • Information Boards • 2015 Bugs

Groups appears in: • Insects and Spiders • Canon MP-E 65mm f/2.8 1-5x Macro Photo more » • BBC Winterwatch • RIverside Nature Reserve (Guildford) « less

Camera: Canon EOS 7D, f/7.1, 1/250 sec, 65mm, ISO 160 (more info) (hide info)

Camera:	Canon EOS 7D
Lens:	MP-E65mm f/2.8 1-5x Macro Photo
Aperture:	f/7.1
Exposure Time:	0.004 sec (1/250)
Focal Length:	65mm
ISO:	160
Exposure Bias:	0 EV
Flash:	On, Fired
Exposure Program:	Manual
Exposure Mode:	Manual
Metering Mode:	Center-weighted average
White Balance:	Auto
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom 6.2.1 (Macintosh)
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