COMTEIVTS. 



Some Notes on the Geological History of the Parasitic Hymenoptera. By 



Charles F. Hrues . . ... . . . i 



Westchester Heteroptera.— II. Additions, Corrections and New Records. By 



]. H. i)E LA Torre Bueno . 22 



Some Mexican Hemipt era -Heteroptera New to the Fauna of the United 



States. By H. G. Barbkr .... 34 



Notes on Breeding Hemiptera. By Chris. E. Olsen . . 39 



A New Species of Chysobothris (Coleoptera) from Maine. By C. A. Frost . 43 



On Chrysobothr is calif ornica and Allies. ByH.C. Fall 45 



Studies on Syrphidae. -I. Syrphus arcuatus Fallen and a Related New Species. 



By Raymund C. Osburn 53 



Studies on Syrphidae. — II. The Invalidity of [Scaeva ( — Catabomba) as a 



Genus. By Raymond C. Osburn .... 58 



Studies on Syrphidse. — III. An Interesting Meristic Variation in Syrphus per- 

 plexus. By Raymond C. Osburn 62 



Proceedings of the New York Entomological Society 66 



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