Occasional Papers of the Musewn of Zoology 7 



the aquatic bugs. The shady glens at the southern edge of 

 the woods are splendid collecting localities : here there are 

 quiet pools and intermittent streams, dense beds of lizard's 

 tail {Saururus cernuns) and luxuriant grasses, shaded by 

 sycamores, butternuts, elms, ash trees, and sour-gum (Nyssa 

 sylvatica). In one of these glens nearly sixty species of Hemip- 

 tera were taken. Other types of habitats occur on the borders 

 of the woods, such as upland pastures, meadows, orchards, 

 cultivated fields, cat-tail marshes, and buttonbush swamps ; and 

 collecting conditions here were almost ideal. 



Acknozvlcdgments: An expression of sincere appreciation 

 is due to several of my friends and co-workers on Hemiptera 

 for their assistance in the determination of many of the spe- 

 cies listed below : to Dr. H. H. Knight, who has examined all 

 the Miridae of the 1919 collection and many of those taken in 

 1920; to Professor C. J. Drake, who has named several spe- 

 cies of the Tingidae ; to Mr. J. R. de la Torre Bueno, who 

 has looked over the Saldid species of the collection ; and to 

 Dr. H. M. Parshley, who has kindly identified some of the 

 other forms. Acknowledgments are also due to Messrs. M. 

 H. Hatch, of Detroit, and Carrol Rawchffe, of Cicero, 111., 

 who very generously gave me several Hemiptera taken from 

 the June beach-drift at New Buffalo and at the Sawyer Dunes; 

 to my co-worker in the field, Mr. T. H. Hubbell, who turned 

 over to me many Hemiptera which he chanced upon while 

 collecting Orthoptera; and to Mr. George R. Fox, of Three 

 Oaks, whose intimate knowledge of the region and whose 

 interest in our work greatly facilitated our field studies. 



