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Sciocoris cursitans Sand-runner Shieldbug
Family: Pentatomidae

The only representative of the genus in Britain, this pale brown shieldbug has a distinctively broad and laterally expanded connexivum and a very rounded head. Males are able to stridulate loudly.

Nymphs (June-August) are associated with Mouse-eared Hawkweed and Potentilla species, which are thought to be the hostplants.
The new generation of adults is complete from August onwards.

Scarce and locally distributed across southern England, in sandy areas, brownfield sites and warm, sheltered slopes on calcareous grassland.

Adult: All year
Length 4.5-6.0 mm

see illustrated life stages chart
Sciocoris cursitans
Adult: Surrey (May 2010) ©Tristan Bantock

Sciocoris cursitans Sciocoris cursitans
Adult: Essex (June 2010) ©Tristan Bantock

Adult: Surrey (May 2010) ©Tristan Bantock

Sciocoris cursitans Sciocoris cursitans
Adult: Kent (August 2010) ©Tristan Bantock

Adult: Surrey (May 2010) ©Tristan Bantock

Sciocoris cursitans Sciocoris cursitans
Late instar nymph: Kent (August 2010) ©Tristan Bantock

Late instar nymph: Kent (August 2010) ©Tristan Bantock