The species is 3.5–4.8 mm long, and is the smallest Australian whirlgig beetle.[3] It has a black body.[3]Gyrinus convexiusculus found in New Zealand are consistently larger than Australian specimens (averaging 4.4mm for males and 4.6mm for females).[2]
Distribution and habitatedit
Gyrinus convexiusculus is found across the eastern coast of Australia, ranging from Darwin to Victoria but most commonly found around Brisbane.[3] The species has been recorded in South Asia,[4]China, Indonesia, New Zealand and New Caledonia.[3] Initially being recorded in New Zealand in the 1870s, no record of the species was found for 100 years, until their rediscovery in the Waikato in 1977, and later in Northland (Mangonui in 1983 and Marsden Point in 1989).[1] It is the sole whirligig beetle species found in New Zealand, and it is unknown if the populations found in New Zealand represent an enduring population, or populations that recently self-introduced from Australia.[2]
The species is found in shallow fresh water bodies,[3] small peat lakes and man-made dams.[5]
^ abcdeWatts, C., & Hamon, H. (2010). Pictorial guide to the Australian whirligig beetles. Entomology Department, South Australian Museum, Adelaide, South Australia, 1–27.
^Jaiswal, D. (2013). Aquatic Insects of Lakes in and around Hyderabad (Hempitera and Coleoptera). The Zoological Survey of India, Occasional Paper, 350, 1-51.
^Klimaszewski, J., & Watt, J. C. (1997). Coleoptera: family-group review and keys to identification. Fauna of New Zealand, 37.
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gyrinus, convexiusculus, species, whirligig, beetle, family, gyrinidae, first, described, macleay, 1871, illustration, helmore, scientific, classification, domain, eukaryota, kingdom, animalia, phylum, arthropoda, class, insecta, order, coleoptera, family, gyr. Gyrinus convexiusculus is a species of whirligig beetle in the family Gyrinidae first described by Macleay in 1871 2 Gyrinus convexiusculus Gyrinus convexiusculus illustration by Des Helmore Scientific classification Domain Eukaryota Kingdom Animalia Phylum Arthropoda Class Insecta Order Coleoptera Family Gyrinidae Genus Gyrinus Species G convexiusculus Binomial name Gyrinus convexiusculusMacleay 1871 Synonyms Gyrinus huttoni Pascoe 1877 1 Description editThe species is 3 5 4 8 mm long and is the smallest Australian whirlgig beetle 3 It has a black body 3 Gyrinus convexiusculus found in New Zealand are consistently larger than Australian specimens averaging 4 4mm for males and 4 6mm for females 2 Distribution and habitat editGyrinus convexiusculus is found across the eastern coast of Australia ranging from Darwin to Victoria but most commonly found around Brisbane 3 The species has been recorded in South Asia 4 China Indonesia New Zealand and New Caledonia 3 Initially being recorded in New Zealand in the 1870s no record of the species was found for 100 years until their rediscovery in the Waikato in 1977 and later in Northland Mangonui in 1983 and Marsden Point in 1989 1 It is the sole whirligig beetle species found in New Zealand and it is unknown if the populations found in New Zealand represent an enduring population or populations that recently self introduced from Australia 2 The species is found in shallow fresh water bodies 3 small peat lakes and man made dams 5 References edit a b Wise K A J 1983 Lacewings and Aquatic Insects of New Zealand 1 Three New Northern Distribution Records Records of the Auckland Institute and Museum 20 255 257 ISSN 0067 0464 JSTOR 42906527 Wikidata Q58677555 a b c Wise K A J 1989 The Family Gyrinidae Hexapoda Coleoptera in New Zealand with a Description of a Northern Population Records of the Auckland Institute and Museum 26 83 102 ISSN 0067 0464 JSTOR 42906397 Wikidata Q58677379 a b c d e Watts C amp Hamon H 2010 Pictorial guide to the Australian whirligig beetles Entomology Department South Australian Museum Adelaide South Australia 1 27 Jaiswal D 2013 Aquatic Insects of Lakes in and around Hyderabad Hempitera and Coleoptera The Zoological Survey of India Occasional Paper 350 1 51 Klimaszewski J amp Watt J C 1997 Coleoptera family group review and keys to identification Fauna of New Zealand 37 nbsp This whirligig beetle article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Gyrinus convexiusculus amp oldid 1214317756, wikipedia, wiki, book, books, library,
