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Genus Eucallipterus

Lime aphids

Species Overview: Genus Eucallipterus  Eucallipterus tiliae 

Genus Eucallipterus [Calaphidini]

Rather small aphids with all viviparae winged. The alates are active, delicate aphids with long thin legs. The antennae are about as long as the body. The siphunculi are truncate, and they have a knobbed cauda and a deeply cleft anal plate. The dark spots on the wings are conspicuous.

Possibly three species worldwide feeding on the undersides of leaves of lime (Tilia spp.). They have a sexual stage in the life cycle, but do not host alternate and are not attended by ants.

 

Eucallipterus tiliae (Common lime aphid)

All viviparae of Eucallipterus tiliae are alates (see first picture below). The body is pale yellow with black markings, including lateral stripes on head and prothorax and two rows of black dorsal abdominal spots. The forewing has a dark front edge and dark spots at the tips of the oblique veins. The antennae are black with the middle part of segment 3, the bases of segments 4, 5 and 6 and the terminal process paler. The terminal process is 0.55-0.7 times the length of the base of the last antennal segment. The short truncate siphunculi are dark or dusky. The body length of winged female Eucallipterus tiliae is 1.88-3.0 mm.

 

The abdominal spots are prominent on the fourth-instar nymph (shown in the second picture above). The ovipara of Eucallipterus tiliae has its dorsum almost wholly covered by large paired black spinal and marginal sclerites. The winged male of Eucallipterus tiliae is similar to the alate vivivipara, but has secondary rhinaria on antennal joints III-VI.

The common lime aphid feeds on the undersides of leaves of lime (Tilia species). It does not host alternate. Alate males and apterous oviparae develop in mid-late summer, earlier in the year than in most species. Eucallipterus tiliae is found in Europe, south-west and central Asia and north Africa, and has been introduced to North America and New Zealand.

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Acknowledgements

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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