Canopus (genus)
| Canopus | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the family | ||||||||||||
| Canopidae | ||||||||||||
| McAtee & Malloch , 1928 | ||||||||||||
| Scientific name of the genus | ||||||||||||
| Canopus | ||||||||||||
| Fabricius , 1803 |
Canopus is a genus of bedbugs from the suborder Pentatomomorpha . The genus is now placed in its own family Canopidae . It includes 8 types .
features
The animals are five to seven millimeters long. Their hemispherical or beheaded egg-shaped body is strongly curved on the back and flattened on the abdomen, which gives a certain similarity to some species of earth bugs (Cydnidae). The bugs are glossy black in color, often with a purple or greenish tinge.
Its head is short, the antennae are five-limbed, the diameter and length of the second limb being almost the same. The convex scutellum is greatly enlarged and covers the abdomen and most of the forewings. The exocorium of the hemielytras is least obscured laterally. The fore wings are elongated and twice as long as the abdomen. They have a linear weak point at the end of the Costa loader where they are folded. Several well-developed wing veins are adjacent to it in parallel. The hind wings have a lobed outer edge. The splints ( tibia ) are provided with setae and do not have thorns. The tarsi are tripartite. The Trichobothria on the third to the seventh sternum of the abdomen are arranged longitudinally, centrally along the line of the spiracles . The spermatheca of males is complex and has a well-developed pumping mechanism. The valvulae have rami that interlock in pairs.
The nymphs also have a strongly spherical, shiny and strongly sclerotized body. They have three pairs of scent gland openings between the third to sixth tergum dorsally on the abdomen. The front opening is twice the size of the two rear openings. The second and third sternite are divided in the middle.
The folding of the forewings, the greatly enlarged, convex shield and the complex structure of the spermatheca are autapomorphies of the genus.
Occurrence
The genus is spread exclusively neotropically .
Way of life
Both nymphs and adults have been found in several places on the sporocarp of stalkporlings (Polyporales). Since spores of the mushrooms were also found in their digestive tract, it is believed that they feed on mushrooms.
Taxonomy and systematics
McAtee & Malloch originally described the genus in 1928 as a subfamily of the stink bug (Pentatomidae). Frederick McDonald they bordered in 1979 as his own family, and suspected because of the paired interlocking Rami to the valvulae that genus and family near the scutelleridae were related (Scutelleridae). He also noted, however, that the paired glands are similar to those of the earth bugs.
supporting documents
Individual evidence
- ↑ a b c d e f g h R.T. Schuh, JA Slater: True Bugs of the World (Hemiptera: Heteroptera). Classification and Natural History. Cornell University Press, Ithaca, New York 1995, pp. 219ff.
literature
- RT Schuh, JA Slater: True Bugs of the World (Hemiptera: Heteroptera). Classification and Natural History. Cornell University Press, Ithaca, New York 1995.
Web links
- americaninsects.net : Images of a specimen from French Guiana