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Identification & Distribution:
Adult apterae of Subsaltusaphis picta are whitish yellow, with
dark tranverse intersegmental muscle sclerites. The variably developed longitudinal dark markings are less dark than the intersegmental muscle plates. The antennae are black beyond the basal half of the third segment, and the third antennal segment is 1.2-1.5 times the length of the sixth antennal segment (terminal process + base together). The body length of the adult Subsaltusaphis picta aptera is 2.4-3.0 mm.
Images copyright Thomas Legrand, all rights reserved
Subsaltusaphis picta alatae have 11-16 secondary rhinaria on the third antennal segment.
The painted sedge aphid lives on sedge (Carex sp.) and sometimes also on club rush (Scirpus) growing at the edge of water.
Sexual forms have been recorded in autumn. Subsaltusaphis picta is widely distributed in Europe , and is also found in Kazakhstan and east Siberia.
Other aphids on same host:
- Blackman & Eastop list about 110 species of aphids as feeding on sedges worldwide, and provide formal identification keys for aphids on Carex.
Of those, Baker (2015) lists 32 aphid species as occurring in Britain:
Allaphis cyperi,
Allaphis producta,
Allaphis verrucosa,
Atheroides brevicornis,
Atheroides serrulatus,
Baizongia pistaciae,
Caricosipha paniculatae,
Ceruraphis eriophori,
Colopha compressa,
Forda formicaria,
Iziphya bufo,
Metopolophium dirhodum,
Metopolophium festucae,
Myzus ascalonicus,
Rhopalosiphum maidis,
Rhopalosiphum oxyacanthae,
Rhopalosiphum nymphaeae,
Rhopalosiphum padi,
Rhopalosiphum rufiabdominale,
Schizaphis caricis,
Schizaphis pilipes,
Schizaphis scirpi,
Sipha glyceriae,
Sitobion avenae,
Sitobion fragariae,
Subsaltusaphis flava,
Subsaltusaphis ornata,
Subsaltusaphis pallida,
Subsaltusaphis paniceae,
Subsaltusaphis picta,
Thripsaphis caricis,
and
Vesiculaphis theobaldi.
- Blackman & Eastop list at least 27 species of aphids as feeding on club rush worldwide, and provide formal identification keys for aphids on Scirpus.
Of those, Baker (2015) lists 17 aphid species as occurring in Britain:
Atheroides hirtellus,
Ceruraphis eriophori,
Hyalopterus pruni,
Metopolophium dirhodum,
Rhopalosiphum maidis,
Rhopalosiphum nymphaeae,
Rhopalosiphum oxyacanthae,
Rhopalosiphum padi,
Rhopalosiphum rufiabdominale,
Schizaphis caricis,
Schizaphis scirpi,
Sipha glyceriae,
Sitobion avenae,
Sitobion fragariae,
Subsaltusaphis ornata,
Subsaltusaphis picta
and
Vesiculaphis theobaldi.
Acknowledgements
Our particular thanks to Thomas Legrand for his images of Subsaltusaphis picta.
Whilst we make every effort to ensure that identifications are correct, we cannot absolutely warranty their accuracy. We have mostly made 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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