Dart gwynresog bach

Gwyfyn sy'n perthyn i urdd y Lepidoptera yw dart gwynresog bach, sy'n enw gwrywaidd; yr enw lluosog ydy dartiau gwynresog bach; yr enw Saesneg yw Small White-line Dart, a'r enw gwyddonol yw Euxoa crypta. Geiriadur enwau a thermau  ar Wefan Llên Natur. Adalwyd 13/12/2012.

Gellir dosbarthu'r pryfaid (neu'r Insecta) sy'n perthyn i'r Urdd a elwir yn Lepidoptera yn ddwy ran: y gloynnod byw a'r gwyfynod. Mae'r dosbarthiad hwn yn cynnyws mwy na 180,000 o rywogaethau mewn tua 128 o deuluoedd.

Wedi deor o'i ŵy mae'r dart gwynresog bach yn lindysyn sy'n bwyta llawer o ddail, ac wedyn mae'n troi i fod yn chwiler. Daw allan o'r chwiler ar ôl rhai wythnosau. Mae pedwar cyfnod yng nghylchred bywyd glöynnod byw a gwyfynod: ŵy, lindysyn, chwiler ac oedolyn.

 Rhywogaethau 
 Euxoa aberrans McDunnough, 1932
 Euxoa absona Lafontaine, 1987
 Euxoa acuminifera (Eversmann, 1854)
 Euxoa adumbrata (Eversmann, 1842)
 Euxoa aequalis (Harvey, 1876)
 Euxoa agema (Strecker, 1899)
 Euxoa albipennis (Grote, 1876)
 Euxoa altens McDunnough, 1946
 Euxoa anarmodia (Staudinger, 1897)
 Euxoa annulipes (Smith, 1890)
 Euxoa antica Lafontaine, 1974
 Euxoa apopsis Troubridge & Lafontaine, 2010
 Euxoa aquilina (Denis & Schiffermüller, 1775)
 Euxoa atomaris (Smith, 1890)
 Euxoa atristrigata (Smith, 1890)
 Euxoa aurantiaca Lafontaine, 1974
 Euxoa auripennis Lafontaine, 1974
 Euxoa aurulenta (Smith, 1890)
 Euxoa austrina Hardwick, 1968
 Euxoa auxiliaris – Army Cutworm (Grote, 1873)
 Euxoa baja Lafontaine, 1987
 Euxoa basalis (Grote, 1879)
 Euxoa basigramma (Staudinger, 1870)
 Euxoa beatissima (Rebel, 1917)
 Euxoa bicollaris (Grote, 1878)
 Euxoa bifasciata (Smith, 1888)
 Euxoa biformata Smith, 1910
 Euxoa birivia (Denis & Schiffermüller, 1775)
 Euxoa bochus (Morrison, 1874)
 Euxoa bogdanovi (Erschov, 1873)
 Euxoa bostoniensis (Grote, 1874)
 Euxoa brevipennis (Smith, 1888)
 Euxoa brunneigera (Grote, 1876)
 Euxoa camalpa (Dyar, 1912)
 Euxoa campestris (Grote, 1875)
 Euxoa cana Lafontaine, 1974
 Euxoa canariensis Rebel, 1902
 Euxoa cashmirensis Hampson 1903
 Euxoa castanea Lafontaine, 1981
 Euxoa catenula (Grote, 1879)
 Euxoa centralis (Staudinger, 1899)
 Euxoa chimoensis Hardwick, 1966
 Euxoa choris (Harvey, 1876)
 Euxoa christophi (Staudinger, 1870)
 Euxoa churchillensis (McDunnough, 1932)
 Euxoa cicatricosa (Grote & Robinson, 1865)
 Euxoa cinchonina (Guenée, 1852)
 Euxoa cincta Barnes & Benjamin, 1924
 Euxoa cinereopallida (Smith, 1903)
 Euxoa cinnabarina Barnes & McDunnough, 1918
 Euxoa citricolor (Grote, 1880)
 Euxoa clauda Püngeler, 1906
 Euxoa clausa McDunnough, 1923
 Euxoa coconino Lafontaine, 1987
 Euxoa cognita (Staudinger, 1881)
 Euxoa comosa (Morrison, 1876)
 Euxoa cona (Strecker, 1898)
 Euxoa conjuncta (Smith, 1890)
 Euxoa conspicua (Hübner, [1827])
 Euxoa continentalis Reisser, 1935
 Euxoa cos (Hübner, [1824])
 Euxoa costata (Grote, 1876)
 Euxoa crassilinea (Wallengren, 1860)
 Euxoa crypta (Dadd, 1927)
 Euxoa cryptica Hardwick, 1968
 Euxoa culminicola (Staudinger, 1870)
 Euxoa cursoria – Coast Dart (Hufnagel, 1766)
 Euxoa dargo (Strecker, 1898)
 Euxoa declarata (Walker, 1865)
 Euxoa decora (Denis & Schiffermüller, 1775)
 Euxoa deficiens (Wagner, 1913)
 Euxoa derrae Hacker, 1985
 Euxoa deserta (Staudinger, 1870)
 Euxoa deserticola I.Kozhantshikov, 1937
 Euxoa detersa (Walker, 1856)
 Euxoa diaphora Boursin, 1928
 Euxoa difformis (Smith, 1900) (syn: Euxoa mercedes Barnes & McDunnough, 1912)
 Euxoa dissona (Möschler, 1860)
 Euxoa distinguenda (Lederer, 1857)
 Euxoa divergens (Walker, [1857])
 Euxoa dodi McDunnough, 1923
 Euxoa edictalis (Smith, 1893)
 Euxoa emma L. G. Crabo & A. Crabo, 2007 
 Euxoa emolliensis (Hampson, 1905)
 Euxoa enixa (Püngeler, 1906)
 Euxoa eruta (Hübner, [1827])
 Euxoa excogita (Smith, 1900)
 Euxoa extranea (Smith, 1888)
 Euxoa fallax (Eversmann, 1854)
 Euxoa faulkneri Mustelin, 2000
 Euxoa fissa Staudinger, 1895
 Euxoa flavicollis (Smith, 1888)
 Euxoa flavidens (Smith, 1888)
 Euxoa flavogrisea Corti, 1932
 Euxoa foeda (Lederer, 1855)
 Euxoa foeminalis (Smith, 1900)
 Euxoa franclemonti Lafontaine, 1987 
 Euxoa fumalis (Grote, 1873)
 Euxoa furtivus (Smith, 1890) 
 Euxoa fuscigera (Grote, 1874) (sometimes misspelled as fuscigerus)
 Euxoa glabella Wagner, 1930
 Euxoa goetria I.Kozhantshikov, 1929
 Euxoa guadalupensis Lafontaine & Byers, 1982
 Euxoa hardwicki Lafontaine, 1987 
 Euxoa hastifera (Donzel, 1848)
 Euxoa haverkampfi (Standfuss, 1893)
 Euxoa henrietta (Smith, 1900)
 Euxoa heringi (Staudinger, 1877)
 Euxoa hilaris (Freyer, 1838)
 Euxoa hollemani (Grote, 1874) (syn: Euxoa andera Smith, 1910)
 Euxoa homicida (Staudinger, 1900)
 Euxoa hyperborea Lafontaine, 1987 
 Euxoa idahoensis (Grote, 1878)
 Euxoa immixta (Grote, 1881)
 Euxoa inconcinna (Harvey, 1875)
 Euxoa infausta (Walker, 1865)
 Euxoa infracta (Morrison, 1875)
 Euxoa inscripta Lafontaine, 1981
 Euxoa intermontana Lafontaine, 1975
 Euxoa intolerabilis (Püngeler, 1902)
 Euxoa intrita (Morrison, 1875)
 Euxoa inyoca Benjamin, 1936
 Euxoa juliae Hardwick, 1968
 Euxoa karschi (Graeser, [1890] 1889)
 Euxoa laetificans Smith, 1894
 Euxoa lafontainei Metzler & Forbes, 2009
 Euxoa latro (Barnes & Benjamin, 1926)
 Euxoa lecerfi Zerny, 1934
 Euxoa leuschneri Lafontaine, 1987 
 Euxoa lewisi (Grote, 1873)
 Euxoa lewisi lewisi (Grote, 1873)
 Euxoa lewisi julia Hardwick, 1968
 Euxoa lilloeet McDunnough, 1927
 Euxoa lineifrons (Smith, 1890)
 Euxoa lucida Barnes & McDunnough, 1912
 Euxoa luctuosa Lafontaine, 1976
 Euxoa macleani McDunnough, 1927
 Euxoa macrodentata Hardwick, 1965
 Euxoa maderensis Lafontaine, 1976
 Euxoa maimes (Smith, 1903)
 Euxoa malickyi Varga, 1990
 Euxoa manitobana McDunnough, 1925
 Euxoa mansour (Le Cerf, 1933)
 Euxoa medialis (Smith, 1888)
 Euxoa melana Lafontaine, 1975
 Euxoa melura McDunnough, 1932
 Euxoa mendelis Fernández, 1915
 Euxoa messoria – Reaper Dart (Harris, 1841)
 Euxoa mimallonis (Grote, 1873)
 Euxoa misturata (Smith, 1890)
 Euxoa mitis (Smith, 1894)
 Euxoa mobergi Fibiger, 1990
 Euxoa moerens (Grote, 1883)
 Euxoa mojave Lafontaine, 1987
 Euxoa montana (Morrison, 1875)
 Euxoa montivaga Fibiger, 1997
 Euxoa muldersi Lafontaine & Hensel, 2010
 Euxoa munis (Grote, 1879)
 Euxoa murdocki (Smith, 1890)
 Euxoa mustelina (Christoph, 1876)
 Euxoa nevada (Smith, 1900)
 Euxoa nevadensis Corti, 1928
 Euxoa nigricans – Garden Dart (Linnaeus, 1761)
 Euxoa niveilinea (Grote, [1883])
 Euxoa nomas Erschov, 1874 (syn: Euxoa incognita (Smith, 1894))
 Euxoa nostra (Smith, 1890)
 Euxoa nyctopis Hampson, 1903
 Euxoa obelisca – Square-Spot Dart (Denis & Schiffermüller, 1775)
 Euxoa obeliscoides (Guenée, 1852)
 Euxoa oberfoelli Hardwick, 1973
 Euxoa oblongistigma (Smith, 1888)
 Euxoa occidentalis Lafontaine & Byers, 1982
 Euxoa ochrogaster – Redbacked Cutworm (Guenée, 1852)
 Euxoa olivalis (Grote, 1879)
 Euxoa olivia (Morrison, 1876)
 Euxoa oncocnemoides (Barnes & Benjamin, 1926)
 Euxoa oranaria (Bang-Haas, 1906)
 Euxoa pallidimacula Lafontaine, 1987
 Euxoa pallipennis (Smith, 1888)
 Euxoa penelope Fibiger, 1997
 Euxoa perexcellens (Grote, 1875)
 Euxoa permixta McDunnough, 1940
 Euxoa perolivalis (Smith, 1905)
 Euxoa perpolita (Morrison, 1876)
 Euxoa pestula Smith, 1904
 Euxoa phantoma (Kozhanchikov, 1928)
 Euxoa pimensis Barnes & McDunnough, 1910
 Euxoa piniae Buckett & Bauer, 1964
 Euxoa plagigera (Morrison, 1875)
 Euxoa pleuritica (Grote, 1876)
 Euxoa pluralis (Grote, 1878)
 Euxoa powelli (Oberthür, 1912)
 Euxoa punctigera (Walker, 1865)
 Euxoa quadridentata (Grote & Robinson, 1865)
 Euxoa quebecensis (Smith, 1900)
 Euxoa recula (Harvey, 1876)
 Euxoa recussa (Hübner, [1817])
 Euxoa redimicula (Morrison, 1875)
 Euxoa ridingsiana (Grote, 1875)
 Euxoa riversii (Dyar, 1903)
 Euxoa robiginosa (Staudinger, 1895)
 Euxoa rockburnei Hardwick, 1973
 Euxoa rufula (Smith, 1888)
 Euxoa rugifrons (Mabille, 1888)
 Euxoa sabuletorum (Boisduval, 1840)
 Euxoa satiens (Smith, 1890)
 Euxoa satis (Harvey, 1876)
 Euxoa sayvana Ronkay, Varga & Hreblay, 1998
 Euxoa scandens (Riley, 1869)
 Euxoa scholastica McDunnough, 1920
 Euxoa scotogrammoides McDunnough, 1932
 Euxoa sculptilis (Harvey, 1875)
 Euxoa segnilis (Duponchel, 1837)
 Euxoa selenis (Smith, 1900)
 Euxoa septentrionalis (Walker, 1865)
 Euxoa serotina Lafontaine, 1975
 Euxoa serricornis (Smith, 1888)
 Euxoa servita (Smith, 1895) (sometimes misspelled as servitus)
 Euxoa setonia McDunnough, 1927
 Euxoa shasta Lafontaine, 1975
 Euxoa shasta shasta Lafontaine, 1975
 Euxoa shasta condita Lafontaine, 1975
 Euxoa sibirica (Boisduval, [1837])
 Euxoa siccata (Smith, 1893)
 Euxoa silens (Grote, 1875)
 Euxoa simona McDunnough, 1932
 Euxoa simulata McDunnough, 1946
 Euxoa sinelinea Hardwick, 1965
 Euxoa spumata McDunnough, 1940
 Euxoa stigmatalis (Smith, 1900)
 Euxoa stygialis (Barnes & McDunnough, 1912)
 Euxoa subandera Lafontaine, 1987
 Euxoa taura Smith, 1905 (syn: Euxoa cooki McDunnough, 1925)
 Euxoa teleboa (Smith, 1890)
 Euxoa temera (Hübner, [1808])
 Euxoa terrealis (Grote, 1883)
 Euxoa terrena (Smith, 1900) (sometimes misspelled as terrenus)
 Euxoa tessellata (Harris, 1841)
 Euxoa tibetana (Moore 1878)
 Euxoa tocoyae (Smith, 1900)
 Euxoa triaena Kozhanchikov, 1929
 Euxoa trifasciata (Smith, 1888)
 Euxoa tristicula (Morrison, 1875)
 Euxoa tristis (Staudinger, 1898)
 Euxoa tritici – Whiteline Dart (Linnaeus, 1761)
 Euxoa tronellus (Smith, 1903)
 Euxoa unica McDunnough, 1940
 Euxoa ustulata Lafontaine, 1976
 Euxoa vallus (Smith, 1900)
 Euxoa vallus vallus (Smith, 1900)
 Euxoa vallus luteosita (Smith, 1900)
 Euxoa vallus bivittata (Smith, 1900)
 Euxoa velleripennis Lafontaine, 1987
 Euxoa vernalis Lafontaine, 1976
 Euxoa vetusta (Walker, 1865)
 Euxoa violaris (Grote & Robinson, 1868)
 Euxoa vitta (Esper, 1789)
 Euxoa wagneri Corti, 1926
 Euxoa westermanni (Staudinger, 1857)
 Euxoa wilsoni (Grote, 1873)
 Euxoa xasta Barnes & McDunnough, 1910
 Euxoa zernyi Boursin, 1944

Gweler hefyd
 Rhestr gwyfynod a gloynnod byw
 Cymdeithas Edward Llwyd a Llên Natur

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