THE STATE ENTOMOLOGIST. 31 



BROOD I .—Septem(lecim—lSr)-2. 18(59. 



In the year Lstilt, and at intervals of seventeen years thereafter, they will, in all probability, 

 svpjiear in the valley of the Connecticut river. According to Dr. Asa Fitch (\. V. Keii. 1, p. 40), • 

 they appeared there in 1818 and 18.'J.'j, and accordin.;;- to Dr. Smith they occurred in Franklin, Bristol, 

 and Hampshire counties, Massaeluisetts, in 1707, 'Si, 1801, '18, '.'5.') and '.")2. 



The genuineness of this Brood was fully established, as its appearance 

 in Connecticut in 1869 was recorded by several different journals. 



BROOD U. — Trede ci in— ISX, 18G9. 



In the year 1869, being the same as the preceding, thej' will, in all probability, ajjpear in Georgia, 

 in Habersham, Rabun? Muscogee, Jasper, Greene, Washington and juljaceut counties, having 

 apjieared there in 1843 and IS.'itj, according to Dr. Smith. 



True to time, this Brood appeared in great numbers in the northwest- 

 ern part of Georgia, as I am informed by Mr. A. E. McCutehen, of Lafay- 

 ette, Walker county, in that State. There is a great deal of evidence, 

 however, which 'goes to show that it is the 17-3^ear Brood XXII which 

 occurs in the northeastern counties, and Mr. Geo. P. Kollock, of Clarksville, 

 Habersham county, writes that the " locusts " were not there in 1869, but that 

 they swarmed in 1868 and 1851. Habersham county must therefore be 

 stricken from the above Brood II, and perhaps Eabun also ; while Walker 

 and adjacent northwest counties should be added. 



BROOD HI.— Sep/emdeci?7i— 1853, 1870. 



In the year 1870, and at intervals of seventeen years thereafter, they will, in all probability, 

 •appear in what is known as the " Kreutz Creek Vallej^, " in York county, Pa., and possibly in Vin- 

 ton county, Ohio, and Jo. Daviess county. 111. Mr. S. S. Rathvon, of Lancaster, Pa., speaking of 

 this Brood says : ' ' Lancaster county is bounded on the southwest by the Susquehanna river, dividing 

 it from the county of York, along the northeastern margin of w^hich there is a mountain range slop- 

 ing down to the river. Along that slope Cicadas were abundant the present season (1868— Brood 

 XXn) . But on the southwest side of the range, in what is known as the Kreutz Creek Valley, there 

 were none. They appeared last in this Valley in 1853, and previous to that year at intervals of seven- 

 teen years from time immemorial." Dr. Smith records their .appearance in 1853, both in Vinton 

 county, Ohio, and Jo. Daviess county, Illinois. 



From all that I can learn, this Brood is invalid and has no existence. 

 Mr. Eathvon failed to record its aj)pearance in 1870 in the Kreutz Creek Yal- 

 ley, and the Eev. Dr. J. G. Morris of Baltimore, Md., writes positively that 

 it did not appear. He says : " Our Lancaster friend, Eathvon, was a little 

 mistaken in presuming that this would be the year of the apj)earance of the 

 Cicada in Kreutz Creek Valley, York county, Pa. I have made diligent 

 inquiry of persons familiar with that district, and they report no locusts. 

 Now, it may be that he gives that title to a district different from that which 

 I know by that name (for I was born in that vicinity), but the Kreutz Creek 

 Valley, 7 or 8 miles east of York, and bordering on the Susquehanna, was 

 not visited this year by this singular Cicada." 



I likewise failed to hear of the " locusts," either in Vinton county, Ohio, 

 o/in Jo. Daviess county. 111., and as all three of the localities are restricted 

 and widely separated, and as those in Illinois and Pennsylvania are within 

 the range of Brood V, which occurs one year later, the insects recorded to 

 have appeared in the localities named in 1853, were most likely precursors 

 only of the more extensive Brood V, 



