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NEW SPECIES AND HISTORIES IN PAPAIPEMA SM. (LEPIDOPTERA.) NO. 19
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- 31 May 2012, pp. 121-128
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THE SPECIES OF ARGYNNIS IN AMERICA
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- 31 May 2012, pp. 342-344
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Erratum
ERRATUM—Plate IX
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- 31 May 2012, p. 192
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THE ODONATA OF THE RED DEER DISTRICT, ALBERTA
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- 31 May 2012, pp. 96-103
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SOME SENSORY STRUCTURES IN THE APHIDIDÆ
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- 31 May 2012, pp. 378-384
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THE KNOWN NYMPHS OF THE NORTH AMERICAN SPECIES OF SYMPETRUM (ODONATA)
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- 31 May 2012, pp. 409-418
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LOUISIANA RECORDS OF THE BINDWEED PROMINENT. (SCHIZURA IPOMEÆ DDY.)
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- 31 May 2012, pp. 280-281
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THE CALIFORNIA SPECIES OF MYZUS, WITH THE DESCRIPTION OF A NEW SPECIES
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- 31 May 2012, pp. 49-51
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PLAGIODERA VERSICOLORA LAICH.—AN IMPORTED POPLAR AND WILLOW PEST
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- 31 May 2012, pp. 104-109
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TWO NEW APHID GENERA AND SOME NEW SPECIES
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- 31 May 2012, pp. 193-199
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NEW COLEOPTERA.—VI
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- 31 May 2012, pp. 163-171
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THE SHELL-BARK HICKORY MEALY-BUG
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- 31 May 2012, pp. 19-21
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DESCRIPTIONS OF NEW CYNIPIDÆ
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- 31 May 2012, pp. 345-349
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A NEW SPECIES OF AMPHROPHORA FROM CALIFORNIA
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- 31 May 2012, pp. 51-52
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OBSERVATIONS ON CHIRONOMUS DECORUS JOHANNSEN*
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- 31 May 2012, pp. 418-426
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AN ANNOTATED LIST OF THE SCOLYTID BEETLES OF OREGON
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- 31 May 2012, pp. 321-328
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A NEW SPECIES OF PHENACOCCUS (HEMIPTERA, HOMOPTERA)
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- 31 May 2012, pp. 281-284
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THE OCCURRENCE OF THE GENUS PARACHRYSOCHARIS GIRAULT IN THE UNITED STATES
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- 31 May 2012, p. 129
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NEW COLEOPTERA. VII
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- 31 May 2012, pp. 385-391
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ON SOME NEW OR NOTEWORTHY COLEOPTERA FROM THE WEST COAST OF FLORIDA.—II
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- 31 May 2012, pp. 236-240
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