6 CONTENTS. 
The distribution of the periodical Cicada—Continued. 
Thevange of the well-established broods, taken in numerical order—Cont’d. 
Broods of the 13-year race—Continued. 
Brood XXIII—Tredecom—1911......._.- 
Brood! XOOx—iredecvin—1 9 Se eee 
Systematic position: and structural details 225.5 Boe eee ee ee 
AUMmveriaaKounilay Top nS, Ve leeVe eS e ae ee 
We OVIPOSItOl sas ee haat eka ee ee 
Nhemausteal: ap purataise- es 22 ee al ee ey cee eae kee een 
The sone notes:of the periodical Cicadas. 2 402 -ce = sees ne Coe en ee 
The:so-called sting \of the Cicada-/. 22-22) 22 
Mransfiormation ‘to: the adult stages <= - Maen oe ee ee 
Period’ of emiergente 2.) 22.7.2 So 7000 ee eer ere eee eee See 
Duration, ofthe vadullit stages o2 st het nie ak Spee ce eee ne ee ET 
Method of:emersences.. 2... ee toes oe. ee an ae a 
Cicada huts, OLcomes. 2 sro. eke ae eee ys A ae 
(heact of tra nstornmiation.. 7... 22°. Seen ols oe en Oe a eee 
Oviposition and its effect on the plant.........-- SELES cra ISH LLY Beh eh act he 
IPL AMIS SOUS Cero epee eet tea rea ah aR 
Resaliito thesplant of oviposiiions:: 0-34.00 >) sa ee eee ae ae 
Method of inserting the eggs...........-.-.------ 
The growth and hatching of the eggs.......-.-..-....- 
The underground hfe of the Cicada..........-..-..... 
Experimental proofs of the long underground life 
A successiull 17-year ‘breeding record: -22- =: 220.02. ss = 
History of the larval and pupal stages.......--.--- 
Technical description of the different stages... 2. = <2. 22 2222 Ga ee 
inet damval stage. ¢ Gs i6 <': Bae: et en oe ge ee on ee 
Second tarval-atage. 24.0 ES ete ae ee a eee 
Third) terwaill piiees <>. 0s cee RO eee oe aan ee 
Rourth larval diaper Sete oso ce ae as a neat ohn ieee ee 
First pipal- Stages oe <8 - se erre cer ame 
Second Soup e stele eee ae ee ee 
The habits ef the Varva and ‘pupa.+-<.2-2<43-c2 ane oe wae Cee ae eee ee 
The food of the larva and pupas 22 scos. 5 oe ee eee ee ee 
Adanes koeannivorm. var wleves tolls 2 ee I 
Phe maethod tof, burro willik es se sa e es e er eer 
Damage occasioned by larvee and pupee.-------- 
Mhewnankuralmemenntesxos sulle 1 C1 sil eee re eee eae 
Insect parasites: 5:2. 52 8. Sasa e ee eee es 
Dipterous enemies, 2-222 eee 
IHemipterous enemies. 5.2=.--- 22525-5528 
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