Mae'n fwy na phosibl mai'r teulu yma o bryfaid , y Libellulidae (Cymraeg: teulu'r Picellwyr ) ydy'r teulu mwyaf o weision neidr ar wyneb y Ddaear. Mae'n cynnwys yr isdeuluoedd: Corduliidae a'r Macromiidae yn ôl rhai, er bod cryn ddadlau am hyn gan naturiaethwyr. Hyd yn oed heb y ddau isdeulu hyn, mae'r teulu Libellulidae'n dal i gynnwys dros 1,000 o rywogaethau.
Mae eu tiriogaeth yn ymestyn dros wyneb y Ddaear, fwy neu lai, ond ceir ambell un, fel Libellula angelina Plathemis Celithemis Trithemis Zenithoptera Tramea Pantala
Mae'r picellwyr canlynol i'w cael yng ngwledydd Prydain:
Genera
Mae Libelluidae yn cynnwys y genera canlynol:
Acisoma Rambur, 1842 – pintailsAethiothemis Martin, 1908 Aethriamanta Kirby, 1889 Agrionoptera Brauer, 1864 Amphithemis Selys, 1891 Anatya Kirby, 1889 Anectothemis Fraser, 1954 Antidythemis Kirby, 1889 Archaeophlebia Ris, 1909 Argyrothemis Ris, 1911 Atoconeura Karsch, 1899 Atratothemis Wilson, 2005 Austrothemis Ris, 1909 Bironides Förster, 1903 Boninthemis Asahina, 1952 Brachydiplax Brauer, 1868 Brachygonia Kirby, 1889 Brachymesia Kirby, 1889 – tropical pennantsBrachythemis Brauer, 1868 Bradinopyga Kirby, 1893 Brechmorhoga Kirby, 1894 – clubskimmersCalophlebia Selys, 1896 Camacinia Kirby, 1889 Cannaphila Kirby, 1889 – narrow-winged skimmersCelebophlebia Lieftinck, 1936 Celebothemis Ris, 1909 Celithemis Hagen, 1861 – pennantsChalcostephia Kirby, 1889 Chalybeothemis Lieftinck, 1933 Congothemis Fraser, 1953 Cratilla Kirby, 1900 Crocothemis Brauer, 1868 – skimmersCyanothemis Ris, 1915 Dasythemis Karsch, 1889 Deielia Kirby, 1889 Diastatops Rambur, 1842 Diplacina Brauer, 1868 Diplacodes Kirby, 1889 – perchersDythemis Hagen, 1861 – setwingsEdonis Needham, 1905 Elasmothemis Westfall, 1988 Eleuthemis Ris, 1910 Elga Ris, 1911 Epithemis Laidlaw, 1955 Erythemis Hagen, 1861 – pondhawksErythrodiplax Brauer, 1868 – dragonletsFylgia Kirby, 1889 - white-eyed skimmerGarrisonia Peñalva & Costa, 2007 Hadrothemis Karsch, 1891 – jungle-skimmersHemistigma Kirby, 1889 – pied-spotsHuonia Förster, 1903 Hydrobasileus Kirby, 1889 Hylaeothemis Ris, 1909 Hypothemis Karsch, 1889 Idiataphe Cowley, 1934 – metallic pennantsIndothemis Ris, 1909 Ladona Needham, 1897 Lanthanusa Ris, 1909 Lathrecista Kirby, 1889 Leucorrhinia Brittinger, 1850 – whitefacesLibellula Linnaeus, 1758 (including Plathemis Lokia Ris, 1919 Lyriothemis Brauer, 1868 Macrodiplax Brauer, 1868 – marl pennantsMacrothemis Hagen, 1868 – sylphsMalgassophlebia Fraser, 1956 Miathyria Kirby, 1889 – dashersMicrathyria Kirby, 1889 – tropical dashersMicromacromia Karsch, 1890 Microtrigonia Förster, 1903 Misagria Kirby, 1889 Nannodiplax Brauer, 1868 Nannophlebia Selys, 1878 Nannophya Rambur, 1842 Nannophyopsis Lieftinck, 1935 Nannothemis Brauer, 1868 – skimmersNeodythemis Karsch, 1889 Nephepeltia Kirby, 1889 Nesciothemis Longfield, 1955 Nesogonia Kirby, 1898 Nesoxenia Kirby, 1889 Neurothemis Brauer, 1867 Nothodiplax Belle, 1984 Notiothemis Ris, 1919 – forestwatchersNotolibellula Theischinger & Watson, 1977 Oligoclada Karsch, 1890 Olpogastra Karsch, 1895 Onychothemis Brauer, 1868 Orchithemis Brauer, 1878 Orionothemis Fleck, Hamada & Carvalho, 2009 Orthemis Hagen, 1861 – tropical king skimmersOrthetrum Newman, 1833 Oxythemis Ris, 1909 Pachydiplax Brauer, 1868 – blue dasherPacificothemis Asahina, 1940 Palaeothemis Fraser, 1923 Palpopleura Rambur, 1842 Paltothemis Karsch, 1890 – rock skimmersPantala Hagen, 1861 – rainpool glidersParazyxomma Pinhey, 1961 Perithemis Hagen, 1861 – amberwingsPhyllothemis Fraser, 1935 Planiplax Muttkowski, 1910 Plathemis Hagen, 1861 Pornothemis Krüger, 1902 Porpacithemis Fraser, 1954 Porpax Karsch, 1896 Potamarcha Karsch, 1890 Protorthemis Kirby, 1889 Pseudagrionoptera Ris, 1909 Pseudoleon Kirby, 1889 Pseudothemis Kirby, 1889 Pseudotramea Fraser, 1920 Raphismia Kirby, 1889 Rhodopygia Kirby, 1889 Rhodothemis Ris, 1909 Rhyothemis Hagen, 1867 Risiophlebia Cowley, 1934 Scapanea Kirby, 1889 Selysiothemis Ris, 1897 Sleuthemis Fraser, 1951 Sympetrum Newman, 1833 – meadowhawks, dartersTapeinothemis Lieftinck, 1950 Tauriphila Kirby, 1889 – pasture glidersTetrathemis Brauer, 1868 Thalassothemis Ris, 1909 Thermochoria Kirby, 1889 Thermorthemis Kirby, 1889 Tholymis Hagen, 1867 – evening skimmersTramea Hagen, 1861 – saddlebagsTrithemis Brauer, 1868 – dropwingsTrithetrum Dijkstra & Pilgrim, 2007 Tyriobapta Kirby, 1889 Uracis Rambur, 1842 Urothemis Brauer, 1868 Viridithemis Fraser, 1960 Ypirangathemis Santos, 1945 Zenithoptera Selys, 1869 Zygonoides Fraser, 1957 Zygonychidium Lindley, 1970 Zygonyx Hagen, 1867 Zyxomma Rambur, 1842
Galeri
Cyfeiriadau
Silsby, Jill. 2001. Dragonflies of the World . Smithsonian Institution Press, Washington D.C.
Dolennau allanol
Comin Wikimedia
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