Books by Francis Xavier Williams
The wasps of the genus Plenocu
The wasps of the genus Plenoculus
Life-history studies of East A
Life-history studies of East African Achatina snails
The wasps of the genus Soliere
The wasps of the genus Solierella in California (Hymenoptera, Sphecidae, Larrinae)
Aculeate wasps of Fiji
Aculeate wasps of Fiji
Notes on the habits of the bee
Notes on the habits of the bees and wasps of the Hawaiian Islands
The bees and aculeate wasps of
The bees and aculeate wasps of the Galapagos Islands
Philippine wasp studies
Philippine wasp studies
Notes on the habits of some so
Notes on the habits of some solitary wasps that occur in Kansas, with the description of a new species
The Larridae of Kansas
The Larridae of Kansas