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Indiana University Studies 
shape. The superficially similar galls of Cynips disticha are 
always to be distinguished from both divisa and agama by 
the two cavities of disticha, one of which is the larval cell and 
the other a secondary cavity in the gall. 
As usual, the Central European variety, divisa, is best 
known. Its alternate generation is recognized. We have 
some material of a distinct variety, atridivisa, from more 
northern Europe, and there are a dozen records testifying to 
the occurrence of a gall similar to divisa in Mediterranean 
Europe, Asia Minor, and northern Africa. These southern 
records are as follows: 
Undescribed varieties of Cynips divisa 
Dryophanta divisa Rolfe, 1881, The Ent. 14: 56, 57 ( Q . lusitanica, Q. 
glandulifera in Kew gardens). Kieffer, 1901, Andre Hymen. Europe 
7 (1) : 638 ( Q . lusitanica, Q. Mirbecki, Spain, Portugal, and Algeria 
records only). Darboux and Ilouard, 1901, Zoocecid. Europe: 305, 
311, 354. Trotter, 1901, Bol. Soc. Brot. 18: 7. Darboux and 
Houard, 1902, Zoocec. Hilfsbuch: 40, 43. Tavares, 1902, Rev. Sci. 
Nat. S. Fiel 1: 115 (Portugal). Trotter, 1902, Marcellia 1: 124 
(Spain, Q. pedunculata) . Darboux and Houard, 1907, Galles de 
Cynipides: 241 (Records for Spain, Portugal, and Italy). Houard, 
1908, Zoocecid. Europe 1: 279, 312, 318 (Records for Q. Toza, Q. 
lusitanica, Q. macranthera, incl. Asia Minor) . 
Dryophanta agama err. det. Tavares, 1902, Ann. Sci. Nat. Porto 7 : 49 
(corrected in Tavares, 1902, Rev. Sci. Nat. S. Fiel 1: 115). 
Dryophanta verrucosa Darboux and Houard, 1907, Galles de Cynipides: 
249 (Italian record only). 
Diplolepis divisa Dalla Torre and Kieffer, 1910, Das Tierreich 24: 349, 
764, 779, 781 (Medit. data only, incl. Sicily). Houard, 1913, Mar- 
cellia 12: 36 (Morocco). Houard, 1914, Nouv. Arch. Mus. Paris (5) 
6: 146 (Corsica). Houard, 1914, Marcellia 13: 123. Houard, 1922, 
Zoocecid. Afrique, 1: 122, 131, 133, fig. 210, 211 (incl. Tunis). 
Tavares, 1928, Broteria 25: 27, fig. 37, pi. 3 fig. 7, 20, 20a, 22 
(Portugal and Spain on Q. pedunculata and Q. lusitanica). 
Very few insects seem to have been bred from the galls of 
all these Mediterranean collections, and since many other 
Cynipidae have developed distinct varieties south of the Alps 
and Pyrennes, I suggest that the references to divisa in the 
Mediterranean area need re-determination from large series 
of insects compared with Central European material. The 
records suggest the existence of host as well as geographic 
varieties in southern Europe. 
