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Indiana University Studies 
rather well separated; a small insect, 2.5 to 3.2 mm. in length. Fig- 
ure 399. 
GALL. — The core yellowish to rich reddish russet in color, the 
spines for the most part yellowish white, the tips colored rich golden 
yellow; the bases of the spines not at all swollen; on leaves of what 
at least resembles Quercus reticulata and Q. glaucophylla. Figures 
299-300. 
RANGE. — Mexico: San Luis Potosi (Palmer coll., types). Sierra 
de Zacopoaxtla (L. Diguet acc. Houard 1928). 
Probably confined to an area in more central Mexico. Figure 58. 
TYPES. — 2 females and 28 galls. Holotype female and galls in 
the Museum of Comparative Zoology; paratype female and galls in the 
Kinsey collection; galls in the Philadelphia Academy. From San Luis 
Potosi, Mexico; September, 1878; on Q. reticulata (? ) ; Edward Palmer 
collector. The adults were cut from the galls in 1918. 
The present re-descriptions are made from the paratype insect and 
numerous type galls compared with my original descriptions. 
The galls collected in September were fully grown and the 
insects far enough along at that time to have matured after 
collecting. It is not impossible that the more southern varie- 
ties of Cynips have only one generation a year, as is certainly 
true of several of the southern California Cynipidae, and in 
such a case the growth of incompta may begin much earlier, 
tho proceeding more slowly, than is the case with the Arizona 
varieties of nubila. 
The leaves with the type material would now appear to 
represent Quercus reticulata (as restricted in Trelease’s mono- 
graph of the American Oaks) . I also have galls of what seems 
to be incompta collected by Bonansea in Mexico (without defi- 
nite locality) and sent me by Prof. Trotter of Portici, Italy. 
This material appears to be on Q. glaucophylla , but I cannot 
be certain of determinations based on so few leaves of such 
difficult Mexican oaks. 
Soon after the original publication of incompta , Beuten- 
muller, who had never seen the type material, wrote me that 
it was a synonym of nubila. Weld has recently published this 
synonomy with the following comments: “The writer has 
examined both [types] , comparing one directly with a Bassett 
type of nubila. As the galls were collected in September it is 
the writer's idea that at that time the nutritive layer had not 
been all used up and the larva had vitality to transform into 
an undersized adult but not enough to chew its way out of the 
