NORTH AMERICAN HYMENOPTKRA. 12-3 



ON THE CYXiriDOlS CiALLK OF FLORIDA, 



with deseriptious oJ" new spocios aii<l S.yiiopsox of the 

 described speeies of North Anieriea. 



BY WILLIAM H. ASHMEAD. 



In the following pages studies on the cynipidous galls of Florida 

 are continued, and synopses of all those descril)ed from America 

 north of Mexico are given. 



The tables, which will greatly assist the student in identifying the 

 now numerous described species, have been shaped somewhat in ac- 

 cordance with the " Synopsis of N. A. oak galls" as publislu'd in 

 1865, by Baron Osten Sacken, in the Proceedings of the Entomo- 

 logical Society of Philadelphia. There, about fifty species are tabu- 

 lated ; here, one hundred and forty-three. 



It will also be observed that the generic position of many of the 

 species in the tables does not conform with my " Catalogue of the 

 North American Cynipidre" published in 1885. In explanation of 

 this discrepancy I would say that since then I have securetl most of 

 the described species of the N. A. Cynipidie, many of whicli were 

 not then in my collection, and their present position is assigned them 

 after a very careful study, and with a knowledge of the generic dif- 

 ferences not attained at that time ; they will be found now placed in 

 their proper genera, excepting possibly a few species which I have 

 not yet seen. 



It is the intention of the writer to publish, early in the spring, a 

 monograph of the North American Cynipida?, in which will be given 

 tables for determining the genei-a and species, with full descrii)ti()ns 

 and illustrations of all the genera and generic characters and many 

 of the galls. The work is already well under way, and to make tlie 

 monograi)h as complete as possible and to fill up my tables of the 

 species, I would respectfully ask of those interested, their assistance 

 in the way of specimens to be retained or their loan for study. All 

 specimens sent me will be well cared for, accurately detennincd and 

 returned at the earliest possil)le moment after being studied. I am 

 ])articularly anxious for specimens in the subfamilies Jbuliiiia , A/- 

 lotriiiuc and Fi(/iti)ice. 



