NOVELTY - New isolated polynucleotide that encodes a silencing element having insecticidal activity against a Coleoptera plant pest, comprises nucleotide sequence comprising any one of e.g. SEQ ID NOS: 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29, 32, 33, 36, 37, 40, 41, 44, 45, 48, 49, 52, 53, 54, 55, 56, 57, 60, 61, 64, 65, 68, 69, 72, 73, 76, 77, 80, 81, 84, 85, 88, and 89. A copy of the Sequence Listing is available in electronic format from the USPTO website http://seqdata.uspto.gov/;pageRequest=docDetail&DocID=US20140275208A1.    USE - The polynucleotide or method is useful for controlling Coleoptera plant pest (claimed).    ADVANTAGE - The methods and compositions are capable of limiting damage to plant. Microbial hosts are selected so as to be capable of successfully competing in the particular environment with the wild-type microorganisms, provide for stable maintenance and expression of the sequences encoding the silencing element, and desirably, provide for improved protection of the components from environmental degradation and inactivation.    DETAILED DESCRIPTION - New isolated polynucleotide comprises a nucleotide sequence comprising: (a) nucleotide sequence comprising any one of SEQ ID NOS: 1, 4, 5, 8, 9, 12, 13, 16, 17, 20, 21, 24, 25, 28, 29, 32, 33, 36, 37, 40, 41, 44, 45, 48, 49, 52, 53, 54, 55, 56, 57, 60, 61, 64, 65, 68, 69, 72, 73, 76, 77, 80, 81, 84, 85, 88, 89, 92, 93, 96, 97, 100, 101, 104, 105, 108, 109, 112, 113, 116, 117, 120, 121, 124, 125, 128, 129, 132, 133, 136, 137, 140, 141, 144, 145, 148, 149, 152, 153, 156, 157, 160, 161, 164, 165, 168, 169, 172, 173, 176, 177, 180, 181, 184, 185, 188, 189, 192, 193, 196, 197, 200, 201, 204, 205, 208, 209, 212, 213, 216, 217, 220, 221, 224, 225, 228, 229, 232, 233, 236, 237, 240, 241, 244, 245, 248, 249, 252, 253, 256, 257, 260, 261, 264, 265, 268, 269, 272, 273, 276, 277, 280, 281, 284, 285, 288, 289, 292, 293, 296, 297, 300, 301, 304, 305, 308, 309, 312, 313, 316, 317, 320, 321, 324, 325, 328, 329, 332, 333, 336, 337, 340, 341, 344, 345, 348, 349, 352, 353, 356, 357, 360, 361, 364, 365, 368, 369, 372, 373, 376, 377, 380, 381, 384, 385, 388, 389, 392, 393, 396, 397, 400, 401, 404, 405, 408, 409, 412, 413, 416, 417, 420, 421, 424, 425, 428, 429, 432, 433, 436, 437, 440, 441, 444, 445, 448, 449, 452, 453, 456, 457, 460, 461, 464, 465, 468, 469, 472, 473, 476, 477, 480, 481, 484, 485, 488, 489, 492, 493, 496, 497, 500, 501, 504, 505, 508, 509, 512, 513, 516, 517, 520, 521, 524, 525, 528, 529, 532, 533, 536, 537, 540, 541, 544, 545, 548, 549, 552, 553, 556, 557, 560, 561, 562, 563, 564, 565, 566, 567, 568, 569, 570, 571, 572, 573, 574, 575, 576, 577, 578, 579, 580, 581, 582, 583, 584, 585, 586, 587, 588, 589, 590, 591, 592, 593, 594, 595, 596, 597, 598, 599, 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 624, 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649, 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 700, 701, 702, 703, 706, 707, 708, 709, 712, 713, 714, 715, 718, 719, 720, 721, or its active variants and fragments and complements, where the polynucleotide encodes a silencing element having insecticidal activity against a Coleoptera plant pest; (b) the nucleotide sequence comprising at least 90% sequence identity to any one of nucleotides above, or its active variants and fragments, and complements including, where the polynucleotide encodes a silencing element having insecticidal activity against a Coleoptera plant pest; or (c) the nucleotide sequence comprising at least 19 consecutive nucleotides of any one of sequences of (a) or its active variants and fragments, and complements, where the polynucleotide encodes a silencing element having insecticidal activity against a Coleoptera plant pest. A copy of the Sequence Listing is available in electronic format from the USPTO website http://seqdata.uspto.gov/;pageRequest=docDetail&DocID=US20140275208A1. INDEPENDENT CLAIMS are:    (1) an expression cassette comprising the polynucleotide;    (2) a host cell comprising the heterologous expression cassette;    (3) a plant cell having stably incorporated into its genome a heterologous polynucleotide comprising a silencing element, where the silencing element comprises: (a) a fragment of at least 19 consecutive nucleotides of any one of the sequences above; or its active variants and fragments, and complements; or (b) the nucleotide sequence comprising at least 90% sequence identity to any one of the sequences above, where the silencing element, when ingested by a Coleoptera plant pest, reduces the level of a target sequence in the Coleoptera plant pest and thus controls the Coleoptera plant pest;    (4) a plant or plant part comprising the plant cell;    (5) a transgenic seed from the plant; and    (6) a method for controlling a Coleoptera plant pest.