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Thyreocoris scarabaeoides Negro bug Erdreichwanze |
| Subspecies No subspecies are recognized. Original description Linnaeus, 1758 Linnaeus C (1758). Systema Naturae, Volume 1, 10th Edition. Laurentius Salvius, Stockholm. p. 441. Type locality not given in original publication. Synonyms Cimex scarabaeoides Linnaeus, 1758 (p. 441) Corimelaena scarabaeoides
(Linnaeus, 1758)
Cimex
sphaericus Goeze, 1778Thyreocoris scarabaeoides (Linnaeus, 1758) Corimelaena puncticollis Dallas, 1851 Coreomelas nigritarsis Garbiglietti, 1869 Published misidentifications: Cimex tuberculatus auct. nec Fabricius, 1781 Rossi, 1790:229
Identification Small and round, 3,0 - 4,5 mm. Body all black, with a metallic shine. The scutellum is very large and covers most of the wings. The wing membranes are white (but may appear dark in some specimens). The legs are black with red-brown tarsi; the tibiae are equipped with strong spines. The larvae are black with a grey-brown abdomen. Distribution Europe and western Asia without the north, northern Africa. Biology The species lives in dry, sandy meadows beneath the plant cover. Older literature regards plants of the genus Ranunculus as the main host plant; however, more recent authors suggest that violets of the genus Viola are the main host plant. Similar to the members of the Cydnidae, the larvae and imagines likely feed on the roots of their host plants. The imagines overwinter under dead plant material, moss or stones and probably also digged in the soil. Overwintering adults can be found from April and the next generation can be found from Juli. |
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