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Calligrapha Exclamationis
''Calligrapha exclamationis'', commonly known as the sunflower beetle, is a species of leaf beetle belonging to the family Chrysomelidae, in the subgenus ''Zygogramma'', which was formerly a genus.Shawn M. Clark, Hume B. Douglas, Daniel J. Cavan (2024) Notes on ''Calligrapha'' Chevrolat (subgenus ''Zygogramma'' Chevrolat) and ''Tritaenia'' Motschulsky (Coleoptera: Chrysomelidae: Chrysomelinae). The Coleopterists Bulletin 78(2): 281-295. It is regarded as a pest of sunflower crops in North America. Description ''C. exclamationis'' is a small leaf beetle, 6–12 mm in length, 2–4 mm wide, with a brown pronotum and yellow elytra marked with three, elongated brown stripes and a single, shorter, lateral stripe ending at the middle of the wing in a small dot that resembles an exclamation point. This arrangement bears similarities to the exclamation mark from where this species gets its Latin name. Adult beetles are morphological similar to the Colorado potato beetle, a pest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johan Christian Fabricius
Johann Christian Fabricius (7 January 1745 – 3 March 1808) was a Danish zoologist, specialising in "Insecta", which at that time included all arthropods: insects, arachnids, crustaceans and others. He was a student of Carl Linnaeus, and is considered one of the most important entomologists of the 18th century, having named nearly 10,000 species of animals, and established the basis for the modern insect classification. Biography Johann Christian Fabricius was born on 7 January 1745 at Tønder in the Duchy of Schleswig, where his father was a doctor. He studied at the gymnasium at Altona and entered the University of Copenhagen in 1762. Later the same year he travelled together with his friend and relative Johan Zoëga to Uppsala, where he studied under Carl Linnaeus for two years. On his return, he started work on his , which was finally published in 1775. Throughout this time, he remained dependent on subsidies from his father, who worked as a consultant at Frederiks H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |