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Macrosiphum cholodkovskyi

Meadow-sweet aphid

Identification & Distribution 

Identification & Distribution:

Macrosiphum cholodkovskyi apterae (see first picture below) are yellow-green to dark blue-green or coral-pink to red, with antennae longer than the body. The femora and the siphunculi are dark distally. This is a rather large aphid with a body length of apterae of 3.1-5.1 mm. Macrosiphum cholodkovskyi immatures (see second picture below) often have a longitudinal green stripe on the dorsum.

 

The clarified slide mounts below are of adult viviparous female Macrosiphum cholodkovskyi : wingless, and winged.

 

Micrographs of clarified mounts  by permission of Roger Blackman, copyright AWP  all rights reserved.

The meadow sweet aphid does not host alternate but spends its entire life cycle on meadowsweet (Filipendula ulmaria). It lives on the stem and among the flowers. The brown matter at the tip of the right siphunculus, in the picture, is the waxy substance exuded by aphids to repel predators. Macrosiphum cholodkovskyi is found throughout Europe and parts of Asia.

Acknowledgements

Our particular thanks to Roger Blackman for images of his clarified slide mounts.

We have made provisional identifications from high resolution photos of living specimens, along with host plant identity. In the great majority of cases, identifications have been confirmed by microscopic examination of preserved specimens. We have used the keys and species accounts of Blackman & Eastop (1994)  and Blackman & Eastop (2006)  supplemented with Blackman (1974) , Stroyan (1977) , Stroyan (1984) , Blackman & Eastop (1984) , Heie (1980-1995) , Dixon & Thieme (2007)  and Blackman (2010) . We fully acknowledge these authors as the source for the (summarized) taxonomic information we have presented. Any errors in identification or information are ours alone, and we would be very grateful for any corrections. For assistance on the terms used for aphid morphology we suggest the figure  provided by Blackman & Eastop (2006).

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