NORTH AMERICAN IIYMEXOPTERA. 135 



CYNIPIDOUS GALLS OF FLORIDA. 



Sul)family Cynipin^. 

 Galls on the Post Oak (Quercus obtusiloba). 



To the galls already recorded as occurring on this oak in Florida 

 I have to add the following : 



1. Dryophaiita polita Bassett. 



Cytiips polita Bass., Can. Eut. vol. xiii, p. 56. 



This is found most abundantly on the variety of the post oak 

 known as Quercus parvifolia ; begins develoi)ing early in INIay, but 

 does not reach maturity until the last of December. The flies re- 

 main in the galls and do not attempt to escape until the last of Feb- 

 ruary and during March. 



2. Lioxaulis itiaiiiiniila Bassett. 



Cynips mninmnJa Bass., Can. Eut. vol. xiii, p. 76. 



This very rare insect I took nearly two years ago on the same spe- 

 cies of oak, Quercus parvifoUa ; although Mr. Bassett records it as 

 ()ccu]-ring north on the white oak, Quercus alba ; as with him the 

 flies escaped the middle of July. It is very rare and in only one 

 instance have I found it. My specimens seem to be darker on the 

 thorax and abdomen than the types of Mr. Bassett's sent me l)y Dr. 

 Mayr. 



By a typographical error, this species is omitted in my catalogue, 

 Loxaulis being printed over the species belonging to the genus Hol- 

 caspis. 



3. Holcaspis ficula Bassett. 



Cynips ficula Bass., Can. Ent. vol. xiii, p. 75. 



This is a very connnon species, found on both varieties of the post 

 oak ; Mr. Bassett described it from a burr oak, Q. macrocarpa. 



The gall begins developing in August, the fly reaching maturity 

 and escaping the last of November and in December. 



4. Neuroterus verrueariiiii Osten Sackeu. 



Cynips verrucarum O. S. Proc. Ent. Soc. Phil, i, p. 62. 

 This species is rare ; begins developing in September, but the fly 

 does not escape until March. 



5. Andricus Pattoni Bassett. 



Cynips Pdttoni Bass., Can. Ent. vol. xiii, p. 98. 



A common species ; begins developing in August, but the flies do 

 not escape until February and March. 



