Knowledge (XXG)

Brown-tail moth

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elm, grape, hops, maple, oak, pear, raspberry, rose and willow, and even conifers like spruce and hemlock. An early description of the introduction to the United States in the 1890s identified pear and apple trees as most greatly afflicted, but mentioned that once trees were entirely bare of leaves, the larvae would descend to the ground in great numbers and move toward any leafy plant, including vegetable plants. A population explosion on Orford Ness, Suffolk, Uk in 2023-2024 has denuded wild bramble/blackberry bushes.
568: 691: 271: 532:, an invasive species. While not entirely successful for that purpose, one research group concluded that introduction of this fly had a great impact on brown-tail moths while not being as effective on spongy moths, the reason being that the fly larvae need to over-winter inside a host larvae. (Brown-tail moths over-winter as larvae, whereas spongy moths over-winter as eggs.) An older review describes other fly species that were confirmed as brown-tail moth larvae parasites, then released in U.S.: 520:) and titmice. A more recent review, conducted in Spain, identified 17 species of parasites, viral diseases, unspecified predation and other, unknown, causes of death spanning from eggs not hatching, during summer, winter and spring as larvae, finishing with pupae failing to produce winged adults. Generally, mortality increased with population density, although in outbreak regions there was some compensation by females laying 21.6% more eggs (cause not discussed). 76: 44: 595:. The species should be handled using protective gloves at all stages of its life cycle. Shed hairs blow about, and can be brought indoors on clothing and shoes, so rashes can occur without the victim coming in direct contact with the caterpillars. The toxins in the hairs remain potent for up to three years after being shed. Outdoor activities such as mowing a lawn or raking leaves in the fall can cause exposure. 438:, Massachusetts. Cold and wet weather hinders re-expansion of the population outside its current territories, although starting in 2015 there has been a population spike and territory expansion in coastal Maine, from Portland to Bar Harbor. In addition to North America, there have been reports of this species appearing in China, Japan and New Guinea. 243:) are covered in hairs. Two red spots on the back, toward the tail, distinguish these species from other similarly hairy moth larvae. The winged adults have white wings and a hairy white body with a tuft of brown hair at the tip of the abdomen. Females lay one egg cluster, usually on the underside of a leaf of a host plant. The species is 262:-like itchy rash of up to sometimes weeks-long duration due to mechanical and chemical irritation. Direct contact with larvae is not necessary, as the hairs are shed and can become windblown. Toxins in the hairs remain potent for up to three years. Outdoor activities such as mowing a lawn or raking leaves in the fall can cause exposure. 227:. It is native to Europe, neighboring countries in Asia, and the north coast of Africa. Descriptions of outbreaks, i.e., large population increases of several years duration, have been reported as far back as the 1500s. The life cycle of the moth is atypical, in that it spends approximately nine months (August to April) as 348:. The species overwinters communally as larvae within a tough, silken tent constructed around branch-tip leaves and anchored to twigs. In areas where the species is abundant, these tents are a familiar sight, and can be seen on a huge range of plants, especially in late fall and winter when unaffected leaves have fallen. 579:
weeks. The same symptoms have been reported as far back as 1903. The reactions are due to a combination of mechanical and chemical stimuli, the barbed hairs in effect becoming lodged in and physically irritating the skin, and also functioning as microtubules to introduce irritating chemical compounds that have
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In the United States, many species of birds prey on the winged adults, including English house sparrow and blue jay. A review of mortality causes in England and mainland Europe described the brown-tail moth as undergoing periodic population outbreaks, each developing rapidly and lasting for several
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Photographs taken from aerial fly-overs are used to identify areas where the trees have been denuded of leaves and where the branch-tip tents are present. The female sex hormone has been synthesized and field-tested in moth traps as a means of monitoring moth populations during the June/July flight
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is considered unusual. Non-specific host plant feeding combined with its tendency to reach extreme outbreak densities makes this species a major pest of fruit orchards, ornamental trees and hardwood forests. Partial list of plant species: apple, cherry, beach plum (Cape Cod, Massachusetts), beech,
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wrote a paper about the rash caused by the brown-tail moth caterpillar in the British Isles. It, and other descriptions, confirmed that loose hairs can break off and cause very itchy rashes on contact with skin, as well as breathing difficulties similar to asthma if inhaled. Rashes can persist for
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Branch-tip webs can be clipped in winter and very early spring, and either dropped into a bucket of soapy water or burned. Gloves should be worn. Appropriate pesticides should be applied before early May because that is when the larvae start to develop harmful hairs. For organic garden and farm
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This species was accidentally introduced to the United States in the 1890s. During the early 20th century it was present from eastern Connecticut northward into New Brunswick, Canada, but a subsequent severe population collapse reduced the territory to parts of coastal Maine and Cape Cod,
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The brown-tail moth produces one generation a year. It has four life stages; egg, larval, pupal, and adult. Eggs are laid in July and hatch in August. The annual cycle is approximately one month as eggs, nine months as larvae, one month as pupae, and one month as
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larvae: As a response to shortened periods of daylight, larvae build communal winter nests in the fall, inside of which they overwinter. These involve webbing binding leaves together at tree-top branch tips. Distinct from other communal moth larvae such as
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This species can be found throughout Europe, except in the most northern countries, also in the westernmost countries of Asia, such as Turkey, Syria and Israel, and the countries across the northern parts of Africa.
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is 36–42 millimetres (1.4–1.7 in). The body is very hairy and white except for the tail which is covered in reddish-brown hairs, much more prominent in the females. Males have larger antennae, used to detect
255:. Starting in 2015 there has been a population spike and territory expansion in coastal Maine. In Europe, there are multiple parasitic and predator species, yet there is still a history of population outbreaks. 690: 654: 366:
and Archie H. Kirkland recount historic mentions of brown-tail moths dating back to 1500s, describing outbreaks in Paris, London and Berlin so severe as to completely strip all trees of leaves.
485:, and still inhabit the winter nests as their resting places, or else make communal web-nests. These small larvae will also detach from trees and fall to the ground, then search for new trees. 1433:
Balit, C. R., Ptolemy, H. C., Geary, M. J., Russell, R. C., Isbister, G. K. (2001). "Outbreak of caterpillar dermatitis caused by airborne hairs of the mistletoe browntail moth (
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season. The white-winged adults are nocturnal and strongly attracted to light; a report from 1903 likened their appearance around streetlights as being akin to heavy snowfall.
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is very hairy, brown with white markings, and two prominent red spots toward the tail end. The hairs provide protection from predators; the larva incorporates some into the
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rash. Within a few years it was seen as a serious, fast-spreading, horticultural and health problem. Through the early parts of the 20th century it was present in much of
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years, followed by a decline to relative obscurity. In a study conducted in England, egg, larvae and pupae deaths were attributed to several parasites, including
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de Jong, M. C., Hoedemaeker, J., Jongebloed, W. L., Nater, J. P. (1976). "Investigative studies of the dermatitis caused by the larva of the brown-tail moth (
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The female lays one cluster of 200 to 400 eggs, typically on the underside of a leaf. The egg cluster is covered with hairs from her anal tuft. The
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collaterally impacted brown-tail moths. By the late 20th century the habitat was reduced to the coast and islands of Maine, and also parts of
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Post-diapausing gregarious larvae: The emerging larvae, approximately one centimeter long, resume feeding in early April synchronized with
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Brown-tail larvae have been reported as feeding on 26 genera of non-resinous trees and shrubs belonging to 13 different families. This
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de Jong, M. C., Kawamoto, F., Bleumink, E., Kloosterhuis, A. J., Meijer, G. T. (1982). "A comparative study of the spicule venom of
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released by unmated females. Females have a larger body. As winged adults, this species is superficially similar in appearance to
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The upper surface of the wings of this species is pure white. Males may have some brown color on the underside of the forewing.
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by 1897. Initial outbreaks were most evident in pear and apple trees. Doctors reported "poisonings" (skin rash) far worse than
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Massachusetts, by the late 20th century. One theory for the decline appeared to be parasitism by a fly introduced to combat
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Group of larvae on branch-tip nest. Once larvae reach late instars, colonies break up and larvae feed independently.
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Khrimian, A., Lance, D. R., Schwarz, M., Leonhardt, B. A., Mastro, V. C. (2008). "Sex pheromone of browntail moth,
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Caterpillar, dorsal view, showing two red dots toward tail end that differentiate it from other hairy caterpillars
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Pre-diapausing larvae: Emerge and feed gregariously starting in August after about three weeks of egg incubation.
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The protective communal silken tent. Created in the fall, the larvae over-winter inside, emerging in spring.
529: 270: 1902: 1554: 555: 1626: 630:, i.e., itch and rash-producing, are also reported for caterpillars of other moth and butterfly species. 498:
Emergence: Imagoes (winged, sexually mature adults) appear about one month later; mate, lay eggs and die.
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Linn.) II. Histopathology of skin lesions and scanning electron microscopy of their causative setae".
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which over-winter as eggs, then create webbed nests in branch crotches during spring and summer.
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Sterling PH, Speight MR (1989). "Comparative mortalities of the brown-tail moth,
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Department of Agriculture, Conservation & Forestry, Maine Forest Service
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Blair CP (1979). "The browntail moth, its caterpillar and their rash".
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Skin rash caused by the exposure to hairs shed by brown-tail moth larva
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CABI Invasive Species Compendium. Wallingford, UK: CAB International
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Egg mass covered with brown hairs from body of the egg-laying female
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The brown-tail moth is an invasive species in the United States and
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Elkinton, J. S., Preisser, E., Boettner, G., Parry, D. (2008).
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species are identified as causing rashes in humans, including
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Oviposition of hair-covered egg mass containing 200-400 eggs
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Hairs from the caterpillars are toxic for humans, causing a
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Pupation: Larvae pupate in June after six to eight instars.
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Maine Department of Agriculture, Conservation and Forestry
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10.1890/0012-9658(2006)87[2664:iaigpi]2.0.co;2
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Post-diapausing dispersive larvae: Once larvae reach late
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Caterpillar, dorsal view, showing two red dots near tail
1379:(Illustrated ed.). Random House UK. p. 273. 813:"Browntail Moth History, Background, Conditions in ME" 741:
Fernald, Charles H. & Kirkland, Archie H. (1903).
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Frago E, Guara MJ, Pujade-Villar J, Selfa S (2010).
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Elkinton, J. S., Parry, D., Boettner, G. H. (2006).
1561: 844:Frago E, Pujade-Villar J, Guara M, Selfa J (2011). 591:activity. This rash reaction may be referred to as 553:situations there are sprays that use a strain of 231:(caterpillars), leaving about one month each for 1038:Harpswell Heritage Land Trust, Harpswell, Maine 1310:U.S. Department of Agriculture, Washington, DC 1034:"Controlling Browntail moths as they lay eggs" 759: 757: 755: 737: 735: 733: 731: 729: 727: 725: 723: 598:A related species, mistletoe browntail moth ( 8: 1215: 1213: 1211: 982: 980: 978: 930: 928: 926: 1028: 1026: 1024: 1022: 839: 837: 749:. Wright & Potter Printing Co., Boston. 1549: 1182:Journal of Agricultural and Food Chemistry 1059:Candan S, Suludere Z, Bayrakdar F (2007). 897: 895: 893: 891: 889: 887: 807: 805: 803: 801: 799: 464:Eggs are preferentially laid on oak trees. 56: 42: 31: 1144: 65:Female with tail tuft of red/brown hairs 1273:Botanical Journal of the Linnean Society 1180:(L.): synthesis and field deployment". 1092: 1090: 719: 650: 309: 1373:Mabey, Richard, Marren, Peter (2010). 299:(native to North America), but female 1518:Lepidoptera and Some Other Life Forms 1332:Clinical and Experimental Dermatology 7: 1718:0fbec316-495a-48a6-90c1-ecbf0ec94866 1451:10.5694/j.1326-5377.2001.tb143760.x 941:Archives of Dermatological Research 1344:10.1111/j.1365-2230.1979.tb01621.x 1285:10.1111/j.1095-8339.1989.tb00137.x 1234:Agricultural and Forest Entomology 460:(winged, sexually mature adults). 25: 1878:Insect pests of temperate forests 1226:on the evergreen strawberry tree 626:(all three native to Australia). 503:Predators, parasites and diseases 1246:10.1111/j.1461-9563.2010.00489.x 1081:10.1111/j.1463-6395.2007.00300.x 870:10.1111/j.1365-2311.2010.01259.x 701: 689: 677: 665: 653: 324: 312: 74: 1061:"Surface morphology of eggs of 1: 1536:(Linnaeus, 1758) - Goldafter" 370:described the species in the 1439:Medical Journal of Australia 1005:10.1016/0041-0101(82)90011-3 307:lacks tail tuft coloration. 303:have a yellow tail tuft and 1908:Taxa named by Carl Linnaeus 1146:10.1603/0046-225x-37.6.1429 1924: 1542:Retrieved March 27, 2020. 1486:"72.012 BF2029 Brown-tail 1508:Savela M (July 2, 2019). 1407:Graham G (23 July 2015). 394:Somerville, Massachusetts 186: 179: 71:Scientific classification 69: 64: 55: 50: 41: 34: 1133:Environmental Entomology 476:eastern tent caterpillar 1888:Moths described in 1758 293:(native to Europe) and 1898:Moths of North America 1604:Euproctis-chrysorrhoea 1593:Euproctis chrysorrhoea 1563:Euproctis chrysorrhoea 1534:Euproctis chrysorrhoea 1512:Euproctis chrysorrhoea 1488:Euproctis chrysorrhoea 1269:Euproctis chrysorrhoea 1224:Euproctis chrysorrhoea 1178:Euproctis chrysorrhoea 1100:Euproctis chrysorrhoea 1063:Euproctis chrysorrhoea 937:Euproctis chrysorrhoea 745:Euproctis chrysorrhoea 743:"The brown-tail moth, 572: 556:Bacillus thuringiensis 275: 217:Euproctis chrysorrhoea 190:Euproctis chrysorrhoea 36:Euproctis chrysorrhoea 18:Euproctis chrysorrhoea 1413:Portland Press Herald 850:Ecological Entomology 570: 534:Apanteles lacteicolor 525:Compsilura concinnata 427:Compsilura concinnata 416:, and northward into 273: 1713:Fauna Europaea (new) 611:Euproctis baliolalis 392:, having arrived in 172:E. chrysorrhoea 862:2011EcoEn..36..188F 1445:(11–12): 641–643. 1435:Euproctis edwardsi 1102:(brown-tail moth)" 953:10.1007/bf00558526 617:Euproctis limbalis 601:Euproctis edwardsi 573: 538:Metrous versicolor 364:Charles H. Fernald 276: 239:and eggs. Larvae ( 1865: 1864: 1850:Open Tree of Life 1555:Taxon identifiers 1514:(Linnaeus, 1758)" 1490:(Linnaeus, 1758)" 1194:10.1021/jf073161w 1065:(Linnaeus, 1758)" 776:(10): 2664–2672. 290:Euproctis similis 209: 208: 16:(Redirected from 1915: 1858: 1857: 1845: 1844: 1832: 1831: 1829:NBNSYS0000006115 1819: 1818: 1806: 1805: 1796: 1795: 1786: 1785: 1773: 1772: 1760: 1759: 1747: 1746: 1734: 1733: 1721: 1720: 1708: 1707: 1695: 1694: 1682: 1681: 1669: 1668: 1656: 1655: 1643: 1642: 1630: 1629: 1617: 1616: 1607: 1606: 1597: 1596: 1595: 1582: 1581: 1580: 1550: 1545: 1528: 1526: 1524: 1504: 1502: 1500: 1471: 1470: 1430: 1424: 1423: 1421: 1419: 1404: 1398: 1397: 1395: 1393: 1370: 1364: 1363: 1327: 1321: 1320: 1318: 1316: 1307: 1295: 1289: 1288: 1264: 1258: 1257: 1217: 1206: 1205: 1188:(7): 2452–2456. 1173: 1167: 1166: 1148: 1139:(6): 1429–1437. 1124: 1118: 1117: 1115: 1113: 1094: 1085: 1084: 1056: 1050: 1049: 1047: 1045: 1030: 1017: 1016: 984: 973: 972: 932: 921: 920: 918: 916: 907: 903:"Browntail Moth" 899: 882: 881: 841: 832: 831: 829: 827: 817: 809: 794: 793: 761: 750: 739: 705: 693: 681: 669: 657: 628:Urticating hairs 542:Sturmia nidicola 344:within which it 328: 316: 296:Hyphantria cunea 192: 79: 78: 60: 46: 32: 21: 1923: 1922: 1918: 1917: 1916: 1914: 1913: 1912: 1893:Moths of Europe 1868: 1867: 1866: 1861: 1853: 1848: 1840: 1835: 1827: 1822: 1814: 1809: 1801: 1799: 1791: 1789: 1781: 1776: 1768: 1763: 1755: 1750: 1742: 1737: 1729: 1724: 1716: 1711: 1703: 1698: 1690: 1685: 1677: 1672: 1664: 1659: 1651: 1646: 1638: 1633: 1625: 1620: 1612: 1610: 1602: 1600: 1591: 1590: 1585: 1576: 1575: 1570: 1557: 1543: 1540:Lepiforum e. V. 1522: 1520: 1507: 1498: 1496: 1483: 1480: 1475: 1474: 1432: 1431: 1427: 1417: 1415: 1406: 1405: 1401: 1391: 1389: 1387: 1376:Bugs Britannica 1372: 1371: 1367: 1329: 1328: 1324: 1314: 1312: 1305: 1297: 1296: 1292: 1266: 1265: 1261: 1219: 1218: 1209: 1175: 1174: 1170: 1126: 1125: 1121: 1111: 1109: 1096: 1095: 1088: 1058: 1057: 1053: 1043: 1041: 1040:. 2 August 2016 1032: 1031: 1020: 991:caterpillars". 986: 985: 976: 934: 933: 924: 914: 912: 905: 901: 900: 885: 843: 842: 835: 825: 823: 822:. February 2018 815: 811: 810: 797: 763: 762: 753: 740: 721: 716: 709: 706: 697: 694: 685: 682: 673: 670: 661: 658: 649: 636: 623:Euproctis lutea 565: 550: 518:Cuculus canorus 505: 453: 444: 386: 377:Systema Naturae 359: 354: 332: 329: 320: 317: 268: 213:brown-tail moth 205: 194: 188: 175: 73: 28: 27:Species of moth 23: 22: 15: 12: 11: 5: 1921: 1919: 1911: 1910: 1905: 1900: 1895: 1890: 1885: 1880: 1870: 1869: 1863: 1862: 1860: 1859: 1846: 1833: 1820: 1807: 1797: 1787: 1774: 1761: 1748: 1735: 1722: 1709: 1700:Fauna Europaea 1696: 1683: 1670: 1657: 1644: 1631: 1618: 1608: 1598: 1583: 1567: 1565: 1559: 1558: 1553: 1547: 1546: 1529: 1505: 1479: 1478:External links 1476: 1473: 1472: 1425: 1399: 1385: 1365: 1338:(2): 215–222. 1322: 1290: 1259: 1240:(4): 381–388. 1207: 1168: 1119: 1086: 1075:(2): 133–136. 1069:Acta Zoologica 1051: 1018: 999:(2): 477–485. 974: 947:(2): 177–191. 922: 883: 856:(2): 188–199. 833: 795: 751: 718: 717: 715: 712: 711: 710: 707: 700: 698: 695: 688: 686: 683: 676: 674: 671: 664: 662: 659: 652: 648: 645: 635: 632: 564: 561: 549: 546: 504: 501: 500: 499: 496: 493: 486: 479: 468: 465: 452: 449: 443: 440: 385: 382: 358: 355: 353: 350: 334: 333: 330: 323: 321: 318: 311: 267: 264: 223:of the family 207: 206: 195: 184: 183: 177: 176: 169: 167: 163: 162: 155: 151: 150: 145: 141: 140: 135: 131: 130: 125: 121: 120: 115: 111: 110: 105: 101: 100: 95: 91: 90: 85: 81: 80: 67: 66: 62: 61: 53: 52: 48: 47: 39: 38: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 1920: 1909: 1906: 1904: 1903:Moths of Asia 1901: 1899: 1896: 1894: 1891: 1889: 1886: 1884: 1881: 1879: 1876: 1875: 1873: 1856: 1851: 1847: 1843: 1838: 1834: 1830: 1825: 1821: 1817: 1812: 1808: 1804: 1798: 1794: 1788: 1784: 1779: 1775: 1771: 1766: 1762: 1758: 1753: 1749: 1745: 1740: 1736: 1732: 1727: 1723: 1719: 1714: 1710: 1706: 1701: 1697: 1693: 1688: 1684: 1680: 1675: 1671: 1667: 1662: 1658: 1654: 1649: 1645: 1641: 1636: 1632: 1628: 1623: 1619: 1615: 1609: 1605: 1599: 1594: 1588: 1584: 1579: 1573: 1569: 1568: 1566: 1564: 1560: 1556: 1551: 1541: 1537: 1535: 1530: 1519: 1515: 1513: 1506: 1495: 1491: 1489: 1482: 1481: 1477: 1468: 1464: 1460: 1456: 1452: 1448: 1444: 1440: 1436: 1429: 1426: 1414: 1410: 1403: 1400: 1388: 1386:9780701181802 1382: 1378: 1377: 1369: 1366: 1361: 1357: 1353: 1349: 1345: 1341: 1337: 1333: 1326: 1323: 1311: 1304: 1300: 1294: 1291: 1286: 1282: 1278: 1274: 1270: 1263: 1260: 1255: 1251: 1247: 1243: 1239: 1235: 1231: 1229: 1228:Arbutus unedo 1225: 1216: 1214: 1212: 1208: 1203: 1199: 1195: 1191: 1187: 1183: 1179: 1172: 1169: 1164: 1160: 1156: 1152: 1147: 1142: 1138: 1134: 1130: 1123: 1120: 1107: 1103: 1101: 1093: 1091: 1087: 1082: 1078: 1074: 1070: 1066: 1064: 1055: 1052: 1039: 1035: 1029: 1027: 1025: 1023: 1019: 1014: 1010: 1006: 1002: 998: 994: 990: 983: 981: 979: 975: 970: 966: 962: 958: 954: 950: 946: 942: 938: 931: 929: 927: 923: 911: 904: 898: 896: 894: 892: 890: 888: 884: 879: 875: 871: 867: 863: 859: 855: 851: 847: 840: 838: 834: 821: 814: 808: 806: 804: 802: 800: 796: 791: 787: 783: 779: 775: 771: 767: 760: 758: 756: 752: 748: 746: 738: 736: 734: 732: 730: 728: 726: 724: 720: 713: 704: 699: 692: 687: 680: 675: 668: 663: 656: 651: 646: 644: 641: 633: 631: 629: 625: 624: 619: 618: 613: 612: 607: 603: 602: 596: 594: 593:lepidopterism 590: 586: 582: 577: 569: 563:Health issues 562: 560: 558: 557: 547: 545: 543: 539: 535: 531: 527: 526: 521: 519: 515: 514:common cuckoo 511: 510:microsporidia 502: 497: 494: 491: 487: 484: 480: 477: 472: 469: 466: 463: 462: 461: 459: 450: 448: 441: 439: 437: 433: 429: 428: 423: 419: 418:New Brunswick 415: 411: 408:from eastern 407: 403: 399: 395: 391: 383: 381: 379: 378: 373: 372:tenth edition 369: 368:Carl Linnaeus 365: 356: 351: 349: 347: 343: 339: 327: 322: 315: 310: 308: 306: 302: 298: 297: 292: 291: 286: 281: 272: 265: 263: 261: 256: 254: 248: 246: 242: 238: 234: 230: 226: 222: 218: 214: 203: 199: 193: 191: 185: 182: 181:Binomial name 178: 174: 173: 168: 165: 164: 161: 160: 156: 153: 152: 149: 146: 143: 142: 139: 136: 134:Superfamily: 133: 132: 129: 126: 123: 122: 119: 116: 113: 112: 109: 106: 103: 102: 99: 96: 93: 92: 89: 86: 83: 82: 77: 72: 68: 63: 59: 54: 49: 45: 40: 37: 33: 30: 19: 1883:Lymantriinae 1562: 1539: 1533: 1521:. 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Index

Euproctis chrysorrhoea


Scientific classification
Edit this classification
Eukaryota
Animalia
Arthropoda
Insecta
Lepidoptera
Noctuoidea
Erebidae
Euproctis
Binomial name
Linnaeus
1758
moth
Erebidae
larvae
pupae
imagos
caterpillars
polyphagous
spongy moths
poison ivy

Wingspan
pheromones
Euproctis similis
Hyphantria cunea

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