InfluentialPoints.com
Biology, images, analysis, design...
Aphids Find them How to ID AphidBlog
"It has long been an axiom of mine that the little things are infinitely the most important" (Sherlock Holmes)

 

 

Macrosiphoniella oblonga

Slender mugwort aphid

On this page: Identification & Distribution  Biology & Ecology 

Identification & Distribution:

Macrosiphoniella oblonga is a distinctive rather elongated apple-green aphid with a darker green spinal stripe. The body hairs are not placed on dark scleroites. The antennae are mostly pale but with the apices of segments 3 and 4 darker, and segments 5 and 6 dark. The legs are long, thin and pale. The siphunculi are greenish with brownish tips; they are thinnest over the distal one third but broader towards the apex. The cauda is green. The body length of Macrosiphoniella oblonga is 3.0-5.1 mm.

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

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

The slender mugwort aphid can be found scattered on the undersides of the lower leaves of mugwort (Artemisia vulgaris) and cultivated chrysanthemum species. It does not form large colonies. Sexual forms can be found in autumn, and the species overwinters as eggs. The male is apterous and very slender. Macrosiphoniella oblonga occurs in Europe and much of north 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).

Useful weblinks 

References

  •  Blackman, R.L. & Eastop, V. (2006). Aphids on the World's Herbaceous Plants and Shrubs. Vols 1 & 2. J. Wiley & Sons, Chichester, UK. Full text