▁areas ▁in ▁which ▁he ▁had ▁heard ▁many ▁in ▁ 1 7 4 9 . ▁ ▁The ▁ 1 7 1 5 ▁and ▁ 1 7 3 2 ▁reports , ▁when ▁couple d ▁with ▁his ▁own ▁ 1 7 4 9 ▁and ▁ 1 7 5 0 ▁observations , ▁supported ▁the ▁previous ▁" general ▁opinion " ▁that ▁he ▁had ▁c ited . ▁ ▁Kal m ▁summar ized ▁his ▁find ings ▁in ▁a ▁paper ▁translated ▁into ▁English ▁in ▁ 1 7 7 1 , ▁stating : There ▁are ▁a ▁kind ▁of ▁Loc ust s ▁which ▁about ▁every ▁sevent een ▁years ▁ ▁come ▁h ither ▁in ▁incred ible ▁numbers ▁.... ▁In ▁the ▁interval ▁between ▁the ▁years ▁when ▁they ▁are ▁so ▁numerous , ▁they ▁are ▁only ▁seen ▁or ▁heard ▁single ▁in ▁the ▁woods . ▁ ▁Based ▁on ▁Kal m ' s ▁account ▁and ▁a ▁spec imen ▁that ▁Kal m ▁had ▁provided , ▁Carl ▁Lin na eus ▁gave ▁to ▁the ▁insect ▁the ▁Latin ▁name ▁of ▁Cic ada ▁sept ende c im ▁in ▁the ▁t enth ▁edition ▁of ▁his ▁System a ▁Natur ae , ▁which ▁was ▁published ▁in ▁Stockholm ▁in ▁ 1 7 5 8 . ▁ ▁In ▁ 1 7 6 6 , ▁Mos es ▁Bart ram ▁described ▁in ▁his ▁Observ ations ▁on ▁the ▁cic ada , ▁or ▁loc ust ▁of ▁America , ▁which ▁appears ▁period ically ▁once ▁in ▁ 1 6 ▁or ▁ 1 7 ▁years ▁the ▁next ▁appearance ▁of ▁the ▁bro od ▁that ▁Kal m ▁had ▁observed ▁in ▁ 1 7 4 9 . ▁Bart ram