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UK Nature  > Bugs  > Adelphocoris lineolatus

Scientific Name:   Adelphocoris lineolatus
Common Name:   Lucerne Bug

Adelphocoris lineolatus, sometimes known as the Lucerne Bug, or Alfalfa Bug, is a very common bug across Britain on various herbaceous legumes including restharrow, clovers and vetches in both dry and damp grassland.

This species is similar to the much rarer A. quadripunctatus and is best separated by the paired lines on the scutellum and paired spots on the pronotum (although these are occasionally absent). The 2nd antennal segment is also entirely pale and under the microscope, the dark pubescence on the elytra is fine and inconspicuous.

Mirids in the genus Adelphocoris share a combination of characters including a large elongate body, large eyes, long antennae, prominent tibial spines and a long rostrum reaching the hind coxae.
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