Insects of Britain and Ireland: the families of Hemiptera

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L. Watson and M. J. Dallwitz


Including Capsidae.

Mirid Bugs, Capsid Bugs, Leaf Bugs.

Salient features of adults. Terrestrial.

Phytophagous (mostly), or predacious (a few), or phytophagous and blood-suckers (rarely, then not obligate blood-suckers). Small to large; 2–11 mm long (if longer than 8 mm, not scarlet and black); fliers; relatively stout bodied to with narrow-elongate bodies; conspicuously stilt-legged. Head non-linear. Rostrum clearly separated ventrally from the prosternum by a sclerotized gula; 4 segmented. Antennae longer than the head, readily visible from above; 4 segmented; non-aristate. Ocelli absent. Scutellum relatively small. Fore-wings well developed; in the resting insect lying more or less flat over the abdomen; differentiated into a basally thickened and a distally membranous region; with a costal fracture and cuneus; with a clavus. Trochanters apparently two-segmented. Tarsi 3 segmented. Pulvilli absent (?). The abdomen without ventral silvery pubescence.

Delicate, soft-bodied bugs; the last two antennal segments often thinner and more flexible than the first two. Both adults and nymphs with the unique, apparently 2-segmented trochanter.

Taxonomy. Suborder Heteroptera; Cimicoidea.

British representation. 208 species in Britain; genera 86. Acetropis, Adelphocoris, Agnocoris, Alloeotomus, Amblytylus, Asciodema, Atractotomus, Blepheridopterus, Bothynotus, Brachyarthrum, Bryocoris, Calocoris, Campylomma, Camptozygum, Campyloneura, Capsis, Capsodes, Capsus, Charagochilus, Chlamydatus, Coniortodes, Conostethus, Cyllecoris, Cyrtorhinus, Deraeocoris, Dichrooscytus, Dicyphus, Dryophilocoris, Fieberocapsus, Globiceps, Hadrodemus, Hallodapus, Halticus, Harpocera, Heterocordylus, Heterotoma, Hoplomachus, Leptopterna, Liocoris, Lopus, Lygocoris, Lygus, Macrolophus, Macrotylus, Malacocoris, Mecomma, Megacoelum, Megaloceraea, Megalocoleus, Miridius, Miris, Monalocoris, Monosynamma, Myrmecoris, Neomecomma, Notostira, Oncotylus, Orthocephalus, Orthonotus, Orthops, Orthotylus, Pachylops, Pachytomella, Pantilius, Pilophorus, Phoenicocoris, Phytocoris, Phyllus, Pilophorus, Pithanus, Pityopsallus, Plagiognathus, Plesiocoris, Plesiodema, Polymerus, Psallus, Pseudoloxops, Salicarus, Stenarus, Stenodema, Stenotus, Strongylocoris, Systellonotus, Teratocoris, Tinicephalus, Trogonotylus, Tytthus, Zygimus.

Illustrations. • Miris tritici, = Notostira elongata: B. Ent. 701. • Miris tritici: B. Ent. 701, legend+text. • Miris tritici: B. Ent. 701, text cont.. • Bothynotus, Deraeocoris, Harpocera, Oncotylus (Southwood & Leston). • Amblytylus, Conostethus, Hoplomachus, Macrotylus, Megalocoleus, Tinicephalus (Southwood & Leston). • Phylus, Psallus (Southwood & Leston). • Asciodema, Plagiognathus, Sthenarus (Southwood & Leston). • Brachyarthrum, Campyloneura, Cyrtorhinus, Dicyphus, Macrolophus (Southwood & Leston). • Atractotomus, Monosynamma, Orthonotus, Tytthus (Southwood & Leston). • Campylomma, Chlamydatus, Plagiognathus, Plesiodema, Psallus (Southwood & Leston). • Blepharidopterus, Heterocordylus, Malacocoris, Pilophorus, Strongylocoris (Southwood & Leston). • Dryophilocoris, Globiceps, Macrotylus, Orthotylus (Southwood & Leston). • Dicyphus, Hallodapus, Systellonotus (Southwood & Leston). • Mecomma, Orthotylus, Pachylops (Southwood & Leston). • Cyllecoris, Dichrooscytus, Neomecomma, Orthotylus, Pithanus, Pseudoloxops (Southwood & Leston). • Variation in pretarsus, pronotum, thorax and pubescence (Southwood & Leston). • Capsus, Liocoris, Lygocoris, Lygus (Southwood & Leston). • Camptozygum, Charagochilus, Orthops (Southwood & Leston). • Adelphocoris, Calocoris, Lygocoris, Plesiocoris (Southwood & Leston). • Adelphocoris, Calocoris, Megacoelum, Miris (Southwood & Leston). • Miridius, Phytocoris (Southwood & Leston). • Capsodes, Polymerus, Stenotus (Southwood & Leston). • Pantilius, Stenodema, Teratocoris, Trigonotylus (Southwood & Leston). • Leptopterna, Megaloceraea, Notostira (Southwood & Leston). • Capsus hirtus Curtis, cf. Orthocephalus saltator. B. Ent.693. • Capsus hirtus Curtis: B. Ent.693, legend+text. • Capsus hirtus Curtis: B. Ent.693, text cont.. • Harpocera burmeisteri Curtis, = H. thoracica? B. Ent. 709. • Harpocera burmeisteri Curtis, = H. thoracica? B. Ent. 709, legend+text. • Acentropis, Leptopterna, Megaloceraea, Notostira, Pithanus, Stenodema, Teratocoris: Saunders, 1892.. • Bryocoris, Lopus, Miridius, Monalocoris, Miridius, Pantilius, Phytocoris: Saunders, 1892.. • Adelphocoris, Calocoris, Dichrooscytus, Lygus, Megacoelum, Plesiocoris, Stenotus: Saunders, 1892.. • Camptozygum, Lygocoris (4 spp.), Orthops (3 spp.), Polymerus (2 spp.): Saunders, 1892.. • Bothynotus, Capsus, Deraeocoris, Hallodapus, Halticus, Liocoris, Pilophorus, Systellonotus: Saunders, 1892.. • Blepharidopterus, Campyloneura, Cyllecoris, Dicyphus, Dryophilocoris, Macrolophus, Orthocephalus, Strongylocoris: Saunders, 1892.. • Cyrtorrhinus, Globiceps, Mecomma, Neomecomma, Orthotylus (6 spp.): Saunders, 1892.. • Heterocordylus, Heterotoma,Lopus, Malococoris, Orthotylus (4 spp.), Pachylops, Pseudoloxops: Saunders, 1892.. • Amblytylus, Conostethus, Harpocera, Hoplomachus, Macrotylus, Megalocoleus, Oncotylus, Orthonotus, Tinicephalus: Saunders, 1892.. • Atractotomus, Phylus, Plesiodema, Psallus (6 spp.): Saunders, 1892.. • Asciodema, Monosynamma, Plagiognathus, Psallus and Salicarius, with Aphelochirus, Ilyocoris and Nepa: Saunders, 1892..

To view the illustrations with detailed captions, go to the interactive key. This also offers full and partial descriptions, diagnostic descriptions, differences and similarities between taxa, lists of taxa exhibiting or lacking specified attributes, and distributions of character states within any set of taxa.

Cite this publication as: ‘Watson, L., and Dallwitz, M.J. 2003 onwards. Insects of Britain and Ireland: the families of Hemiptera. Version: 16th May 2016.’.