|
Cybister Poblanus
''Cybister'' ('kybistētēr' = diver, tumbler), is a genus of beetle in family Dytiscidae. They are found in much of the world, including all continents except Antarctica. As of 2024 there are 98 species and 9 additional subspecies among four subgenera in the genus. Description Adult ''Cybister'' have broad hind legs with unequal tarsal claws (the inner claw being smaller and sometimes absent) and a fringe on the outer margin of the tarsus. They range in length up to 43 mm (''Cybister bimaculatus, C. bimaculatus'' from the Afrotropical realm, Afrotropics). Adult males of the North American species have several ridges on the coxae of the hind legs, forming a Stridulation, stridulatory device. Larvae have a frontal tooth on the head and lack Cercus, cerci. North American species can grow up to 80 mm long. Ecology ''Cybister'' live in lentic (still fresh water) habitats that have vegetation. Like other diving beetles, ''Cybister'' are Predation, predatory. Larvae of ''Cybiste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Curtis (entomologist)
John Curtis (3 September 1791 – 6 October 1862) was an English entomology, entomologist and illustrator. Biography Curtis was born in Norwich to Frances and Charles Morgan Curtis. Charles Morgan died before his son had reached the age of 4. His mother, Frances, had a passion for flowers and was a professional flower grower. She encouraged her son to study natural history with a young local naturalist, Richard Walker (naturalist), Richard Walker (1791–1870). At the age of 16 John became an apprentice at a local lawyer's office in Norwich but devoted his spare time to studying and drawing insects and, with insect collecting becoming a growing craze, he found he could make a living selling the specimens he found. At this time he became a friend of Simon Wilkin (1790–1862) a wealthy land owner in Norfolk, eventually leaving his job to live with Wilkin at Cossey Hall where the extensive natural history library and specimen collection afforded him the opportunity to study his e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
