Catalogue of the Odonata of Ohio. 



197 



appended. These matters are included in papers but recently 

 published by Nathan Banks* and Philip P. Calvertf. 



The systematic arrangement and nomenclature adopted in 

 this paper are those of Mr. Calvert's paper. The main groups 

 are as follows : 



Order ODONATA. 

 I. Sub-order Zygoptera. 



1. Family Agrionid^e. 



(1) Sub-family Calopteryginae. 



(2) Sub-family Agriouinse. 



II. Sub-order Anisoptera. 



2. Family ^Eschnid^E. 



(3) Sub-family Gomphinae. 



(4) Sub-family Corduligasterinse. 



(5) Sub-family iEschninse. 



3. Family Libellulid^e. 



(6) Sub-family Cordulinae. 



(7) Sub-family Libellulinse. 



(1) Calopteryginae. 



1. Calopteryx maculata Beauv. 



This species appears to be found throughout the State, and 

 to be abundant in most localities. It prefers small streams, 

 especially the meadow-brooks and the clear, cool rivulets from 

 springs among the hills of southeastern Ohio. I have taken 



* A Synopsis, Catalogue, and Bibliography of the Neuropteroid Insects of Tem- 

 perate North America. Transactions Am. Ent. Soc, XIX, pp. 327-373, 1893. 



t Catalogue of the Odonata of the Vicinity of Philadelphia, with an Introduc- 

 tion to the Study of this Group of Insects. Trans. Am. Ent. Soc, XX, pp. 152-272, 

 1893- 



