Ingo Arndt / Pea aphid (Acyrthosiphon pisum) giving birth (viviparous during the summer month), Germany. Winner of Fritz Polking portfolio prize, GDT 2012 competition.

Nigel Cattlin / Elder aphid (Aphis sambuci) infestation on the young shoot of ornamental Elder (Sambucus sp) in garden. Berkshire, England, UK. April.

Nigel Cattlin / Lupin aphid (Macrosiphum albifrons) infestation on stem and apical shoots of young Tree lupin (Lupinus arboreus). Berkshire, England, UK. May.

Nigel Cattlin / Glasshouse-potato aphid (Aulacorthum solani) colony on Hibiscus (Hibiscus sp) flower bud, house plant.

Nigel Cattlin / Mealy cabbage aphid (Brevicoryne brassicae) infestation on Brassica stem. Berkshire, England, UK. June.

Nigel Cattlin / Mealy cabbage aphid (Brevicoryne brassicae) infestation on Brassica stem. Berkshire, England, UK. June.

Nigel Cattlin / Mealy cabbage aphid (Brevicoryne brassicae) infestation on secondary host plant Hedge mustard (Alliaria petiolata). Berkshire, England, UK. June.

Nigel Cattlin / Potato aphid (Macrosiphum euphorbiae) infestation on Tulip (Tulipa sp) petal. Berkshire, England, UK. May.

Nigel Cattlin / Foxglove aphid (Aulacorthum solani) infestation on Bougainvillea (Bougainvillea sp) flower in conservatory, UK. August.

Nigel Cattlin / Seven-spot ladybird (Coccinella septem-punctata) larva predating Black bean aphids (Aphis fabae) on Runner bean (Phaseolus coccineus). Bean with buds. Berkshire, England, UK. July.

Nigel Cattlin / Black bean aphid (Aphis fabae) infestation on Runner bean (Phaseolus coccineus), stem twining up bamboo cane. Berkshire, England, UK. June.

Nigel Cattlin / Black bean aphid (Aphis fabae) infestation on flowering Broad bean (Vicia faba). Berkshire, England, UK. June.