Order (Heteroptera), section Pentatomoidea

Shield Bugs, so called from the general shape of the adults. Bugs in the family Pentatomidae are shown on a separate page.

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Hawthorn Shield Bug Acanthosoma haemorrhoidale (Linnaeus, 1758)

Acanthosoma haemorrhoidale
  • Cambridge (Gwydir Street) 4 Jul 2002
  • Family Acanthosomatidae
  • Feeds on leaves and fruits
  • Length: 14mm
  • NBN Atlas

Juniper Shield Bug Cyphostethus tristriatus (Fieber, 1860)

Cyphostethus tristriatus
  • Cambridge, Adams Road (TL437587) 26 Jun 2012
  • Larvae feeds on juniper berries, also cypress
  • Length: 10mm.
  • As well as being smaller than A. haemorrhoidale it lacks the protruding "shoulders", and the red coloration does not stretch so far, leaving boomerang shapes.
  • NBN Atlas

Birch Shield Bug Elasmostethus interstinctus (Linnaeus, 1758)

Elasmostethus interstinctus
  • Cambridge, Bewick Bridge (TL494570) 26 Aug 2014
  • The larvae feed principally on birch, but may also be found on hazel and aspen
  • Similar in size to C. tristriatus with slight "shoulders"—not as prominent as in A. haemorrhoidale and not so much red. Orange shading on the scutellum.
  • NBN Atlas

Parent Bug Elasmucha grisea (Linnaeus, 1758)

Elasmucha grisea Elasmucha grisea nymphs
  • Adult: Old St Ives Railway, TL464614; 20 Sep 2002 Enlarge
  • Nymphs: Adams Road LNR, TL437587; 4 Sep 2007 Enlarge
  • Family Acanthosomatidae
  • Takes its common name from the protective care which the females exercise over eggs and young nymphs.
  • The nymphs, on birch or alder, cluster together even without the parent's presence.
  • Length: 7mm
  • NBN Atlas

Tortoise Shieldbug Eurygaster testudinaria (Geoffroy, 1785)

Eurygaster testudinaria
  • Nymph, Cambridge, Barnwell East Nature Reserve TL479583. 28 Jul 2015
  • Family Scutelleridae
  • Larvae feed on grasses
  • Has expanded its range northwards over the last decade, but still very much a southern British species
  • The similar Eurygaster maura remains, for the moment, largely confined to the southeast corner of England
  • NBN Atlas

Bordered Shieldbug Legnotus limbosus (Geoffroy, 1785)

Legnotus limbosus
  • Cambridge (Gwydir Street) 11 May 2015
  • Family Cydnidae
  • A small shieldbug, around 4mm long
  • Associated with bedstraws (Galium spp.), burrows into loose soil at the base of the plants
  • Widely distributed in southern England, but not many records - probably under-reported because of its burrowing
  • The similar, rarer L. picipes has a shorter white rim and favours drier habitats
  • NBN Atlas

Forget-me-not Shieldbug Sehirus luctuosus Mulsant & Rey, 1866

Sehirus luctuosus
  • Cambridge (Gwydir Street) 1 May 2016
  • Family Cydnidae
  • Host plant is common forget-me-not Myosotis sylvatica
  • Widespread in the southern counties. NBN Atlas

Pied Shieldbug Tritomegas bicolor (Linnaeus, 1758)

Tritomegas bicolor
  • Cambridge (Byron's Pool TL438548) 26 May 2015
  • Family Cydnidae
  • A ground-dwelling species, but may be found on the aerial parts of its labiate foodplants: white dead-nettle (Lamium album) and black horehound(Ballota nigra).
  • The similar T. sexmaculatus has recently reached southeast Britain. It has more white at the sides of the pronotum, and a darker wing membrane.
  • NBN Atlas

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