Picellwyr (teulu)
Teulu o weision neidr From Wikipedia, the free encyclopedia
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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 sy'n hynod o brin. Mae llawer o aelodau'r teulu hwn yn lliwgar eithriadol, neu gyda bandiau ar eu hadenydd. Mae'r genws cysylltiedig, Plathemis yn cynnwys y 'cynffonau gwynion'. Mae'r genws Celithemis yn cynnwys sawl rhywogaeth hynod o liwgar, a welir yn yr Unol Daleithiau. Lliwgar hefyd ydy'r rhywogaethau yn y genera Trithemis a Zenithoptera ac ymhlith y rhai mwyaf cyffredin y mae: Tramea a Pantala.
Mae'r picellwyr canlynol i'w cael yng ngwledydd Prydain:
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Genera
Mae Libelluidae yn cynnwys y genera canlynol:
- Acisoma Rambur, 1842 – pintails
- Aethiothemis 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 pennants
- Brachythemis Brauer, 1868
- Bradinopyga Kirby, 1893
- Brechmorhoga Kirby, 1894 – clubskimmers
- Calophlebia Selys, 1896
- Camacinia Kirby, 1889
- Cannaphila Kirby, 1889 – narrow-winged skimmers
- Celebophlebia Lieftinck, 1936
- Celebothemis Ris, 1909
- Celithemis Hagen, 1861 – pennants
- Chalcostephia Kirby, 1889
- Chalybeothemis Lieftinck, 1933
- Congothemis Fraser, 1953
- Cratilla Kirby, 1900
- Crocothemis Brauer, 1868 – skimmers
- Cyanothemis Ris, 1915
- Dasythemis Karsch, 1889
- Deielia Kirby, 1889
- Diastatops Rambur, 1842
- Diplacina Brauer, 1868
- Diplacodes Kirby, 1889 – perchers
- Dythemis Hagen, 1861 – setwings
- Edonis Needham, 1905
- Elasmothemis Westfall, 1988
- Eleuthemis Ris, 1910
- Elga Ris, 1911
- Epithemis Laidlaw, 1955
- Erythemis Hagen, 1861 – pondhawks
- Erythrodiplax Brauer, 1868 – dragonlets
- Fylgia Kirby, 1889 - white-eyed skimmer
- Garrisonia Peñalva & Costa, 2007
- Hadrothemis Karsch, 1891 – jungle-skimmers
- Hemistigma Kirby, 1889 – pied-spots
- Huonia Förster, 1903
- Hydrobasileus Kirby, 1889
- Hylaeothemis Ris, 1909
- Hypothemis Karsch, 1889
- Idiataphe Cowley, 1934 – metallic pennants
- Indothemis Ris, 1909
- Ladona Needham, 1897
- Lanthanusa Ris, 1909
- Lathrecista Kirby, 1889
- Leucorrhinia Brittinger, 1850 – whitefaces
- Libellula Linnaeus, 1758 (including Plathemis)
- Lokia Ris, 1919
- Lyriothemis Brauer, 1868
- Macrodiplax Brauer, 1868 – marl pennants
- Macrothemis Hagen, 1868 – sylphs
- Malgassophlebia Fraser, 1956
- Miathyria Kirby, 1889 – dashers
- Micrathyria Kirby, 1889 – tropical dashers
- Micromacromia Karsch, 1890
- Microtrigonia Förster, 1903
- Misagria Kirby, 1889
- Nannodiplax Brauer, 1868
- Nannophlebia Selys, 1878
- Nannophya Rambur, 1842
- Nannophyopsis Lieftinck, 1935
- Nannothemis Brauer, 1868 – skimmers
- Neodythemis Karsch, 1889
- Nephepeltia Kirby, 1889
- Nesciothemis Longfield, 1955
- Nesogonia Kirby, 1898
- Nesoxenia Kirby, 1889
- Neurothemis Brauer, 1867
- Nothodiplax Belle, 1984
- Notiothemis Ris, 1919 – forestwatchers
- Notolibellula 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 skimmers
- Orthetrum Newman, 1833
- Oxythemis Ris, 1909
- Pachydiplax Brauer, 1868 – blue dasher
- Pacificothemis Asahina, 1940
- Palaeothemis Fraser, 1923
- Palpopleura Rambur, 1842
- Paltothemis Karsch, 1890 – rock skimmers
- Pantala Hagen, 1861 – rainpool gliders
- Parazyxomma Pinhey, 1961
- Perithemis Hagen, 1861 – amberwings
- Phyllothemis 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, darters
- Tapeinothemis Lieftinck, 1950
- Tauriphila Kirby, 1889 – pasture gliders
- Tetrathemis Brauer, 1868
- Thalassothemis Ris, 1909
- Thermochoria Kirby, 1889
- Thermorthemis Kirby, 1889
- Tholymis Hagen, 1867 – evening skimmers
- Tramea Hagen, 1861 – saddlebags
- Trithemis Brauer, 1868 – dropwings
- Trithetrum 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
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Galeri
Crocothemis servilia
Libellula luctuosa
Orthetrum sabina
Libellula depressa
Sympetrum sanguineum
Trithemis aurora
Trithemis kirbyi
Sympetrum striolatum
Trithemis monardi’’
Crocothemis erythraea
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Cyfeiriadau
Dolennau allanol
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