February, '16] 



GOSSARD: PERIODICAL CICADA 



55 



The map for the 1914 IjroocI, or brood V of Marlatt, is constructed 

 from 1,199 reports gathered respectiveh' b}' the Experiment Station, 

 699, Ohio Division of Nursery and Orchard Inspection, 442, and the 

 Ohio Biological Survey, 58. INIy thanks are hereby tendered to 

 Professors Osborn and Shaw for the privilege of including their data 



DISTRIBUTION 



OF 



PERIODICAL CICADA 



IN 



OHIO 



19 14 



Fig. 3 



in this report. Each dot or square represents one report, the whole 

 being an accurate map of the brood. The squares indicate swarms. 

 The accompanying grouping of counties according to latitude shows 

 the respective dates of appearance and disappearance of the brood 

 in the different zones, going from the southern to the northern parts 

 ■of the state. 



