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Family Cymidae

Bug on seeds - Cymus bug - Cymus angustatus Cymid - Cymus angustatus Bug from Scirpus cyperinus inflorescence - Cymus Male, Cymus? - Cymus Heteroptera on sedge - Cymus Cymus? Maybe C. robustus? - Cymus - female Cymus sp. - Cymus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Pentatomomorpha
Superfamily Lygaeoidea
Family Cymidae
Synonyms and other taxonomic changes
formerly treated as part of Lygaeidae
Numbers
10 spp. in 2 genera in our area (all Cyminae)(1), 54 spp. in 9 genera of 2 subfamilies worldwide(2)
Identification
Hemelytra distinctly punctate, at least on the clavi. Central area of scutellum usually not separated from posterior edge of pronotum by a distinct transverse groove. Abdomen at least as long as thorax. Apex of corium and membrane not extending past abdomen. Clavi with median commissure behind scutellum long and present. Scutellum much shorter than claval commissure. Abdominal sterna conspicuously striated. Hind coxae separated by a space less than a coxal diamter. Ostiolar peritreme a small, inconspicuous rounded knob. Pronotal punctures without glandular setae (3).
small, elongate-ovoid, densely punctate, generally resembling seeds of hostplant; bucculae short; ocelli present; antennae and labium 4-segmented; all abdominal spiracles dorsal except for seventh, which are ventral; one to three larval dorsal abdominal glands between terga III/IV, IV/V, and V/VI.(2)
Range
most spp. in the Old World; Cyminae occur in the Afrotropical, western Palaearctic and Nearctic Regions, the much smaller subfam. Ontiscinae is Australasian(2)
Habitat
often found in seedheads of hostplants in marshy areas
Food
seeds of monocots, primarily sedges (Cyperaceae) and rushes (Juncaceae), sometimes grasses (Poaceae)
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
Ross H. Arnett. 2000. CRC Press.
2.Zoological catalogue of Australia: Hemiptera: Heteroptera (Pentatomomorpha)
Cassis G., Gross G.F. 2002. CSIRO Publishing, 751 pp.
3.Seed Bugs of Virginia (Heteroptera: Lygaeidae)
Richard L. Hoffman. 1996. Virginia Museum of Natural History.