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Indiana University Studies 
first pairs of legs being dark brown, the hind femora usually rather 
brownish; the tarsi brown except at their bases. 
TYPES. — Of flosculi: 6 stems of galls (and perhaps insects?) in 
the Giraud collection in the Museum d’Histoire Naturelle in Paris (acc. 
Houard 1919:11). This material determined by Giraud, tho probably 
not types in a strict sense. This material from France (acc. Darboux 
and Houard 1907), probably \ incennes, “on Quercus Robur” (acc. 
Houard 1919) ; but the original description also mentions Austrian ma- 
terial. 
Of giraudi: 3 insects designated as types, and 5 specimens deter- 
mined by Tschek, in the Vienna Museum (acc. F. Maidl in litt.). From 
Lower Austria, probably from near Vienna (acc. Kieffer 1901). 
I have not seen these types. The present descriptions are there- 
fore based on the published descriptions cited in the bibliography, on 
the excellent colored figure of the Giraud material published by Darboux 
and Houard (1907), and on an insect in the U.S. National Museum. 
INQUILINE. — Ceroptres arator Hartig. Emerges the same sum- 
mer (acc. Mayr-Fitch 1876). 
PARASITES. — Decatoma biguttata (Swederus). Emerges in June 
of the same year (acc. Mayr 1905: 546). 
Eupelmus vesicularis (Retzius) (acc. Ruschka 1920). 
Platymesopus erichsoni Ratzeburg (acc. Mayr 1903). Emerges in 
June of the same year. 
P. tibialis (Westwood) (Giraud 1877 acc. Kieffer 1899). Emerges 
in June of the same year. 
Pteromalus incrassatus Ratzeburg. Emerges in June of the same 
year (acc. Mayr 1903). 
Recorded specimens of this bisexual insect and of its small, 
bud-like galls are very few, and little is known of its biology. 
It will probably prove as widespread as its agamic form 
pubescentis. Meanwhile it serves as another instance of the 
meager data available on the Mediterranean cynipid fauna. 
Tschek (1869) found the adult insect emerging from May 
2 to 11. Mayr (1882) was the first to suggest that this is 
the alternate generation of pubescentis, as I have noted in 
the account of pubescentis. 
Mayr (1871: 69) stated that a Giraud-determined specimen 
of flosculi which was loaned him by Haimhoffen was the same 
as Spathegaster giraudi Tschek, and that flosculi has pre- 
cedence by one month in publication. I re-publish this 
synonymy while pointing out that it is not impossible that 
Giraud had two different things from the two localities, Vin- 
cennes (near Paris) and Austria, mentioned in his original 
description. Since the agamic pubescentis is not definitely 
