2.H BOARD OF AGRTCIXTURE. 



Juno. The first pair incoitm, I observed ou the 21st, and 

 the first temak^ depositing ou the 2iUh of the same month. 

 The fii*st vouuiT ^vere exehided on the 5th of Ansfust. All 

 these dates are some ten days later than eorivspondiug 

 observations made bv mvself and othei's in former veai*s. Ou 

 the ir>th of July I out off some apple, pear and ohestnut twigs 

 oontainius: oiTirs. and stuok the ends into a bottle eontaiuius; 

 water, and set it in a broad, shallow dish also filled Avi.h 

 water, the whole remaining out of doors exposed to the 

 weather, whatever it miirht bo. The vounjr eontinued to 

 drop out on the water in the dish for a full week, after the 

 date above mentioned. I oould breed no cicadas from 

 branches that were dead and ou which the leaves weiv with- 

 ered, nor from those that from any cause had tallen to the 

 around, and this was also the case with Mr. Vincent Bernai\l. 

 of Kennot Sipiare. Chester County. Pa. After the pivoise 

 time was known, fresh branches were obtained, and then the 

 vounsr cicada weiv seen ci^miuir forth in irreat numbers, by 

 half a dozen observers in this countv. As the fruitful esjrs 

 were at least a thiixl larger than thev were when first de- 

 posited. I infer that they reijniiv the moisture contained in 

 living wood to pivs^erve their vitality. "When the pn^per 

 time arrives and the proper conditions are preserved, they 

 are Ciisilv bi-ed, and indeed I have seen them evolve on the 

 p\lm of my hand. The eyes of the yoimg cicadas are seen 

 tlirouirh the eiTir-skin before it is broken.'^ 



Mr. Eilev. in au interestiuir account of this cicada in his 

 "First Annual ReiK>rt on Xoxious. Beneficial, and other In- 

 sects of Missouri" for 18G9. has shown that in the Southern 

 States thirteeu-yeiir broods of this insect are found. He re- 

 marks : "It was mv irood fortune to observe that l>esides the 

 seventeen-year broods, the appearance of one of which was 

 recorded as lonii: asro as IfiSo. there are also thirteen- vear 

 broods, and that, thouirh both sometimes occur in the s;\me 

 States, vet in irenend terms, the seventeen-vear broods mav 

 be s;ud to lv?long to the Xortheru and the thirteen-year bro«.xls 

 to the Southern States, the dividinj; line l>ein<r alxjut latitude 

 thirtv-eisrht dcirrees. thouirh in some places the seventeen-vear 

 brood extends l>elow this line, while in Illinois the thirieeu- 

 rear brood runs up considerably beyond it. It was also ex- 



