Howell V. Daly
Introduction to insect biology and diversity
Bees of the genus Ceratina in America north of Mexico (Hymenoptera: Apoidea)
Bees of the new genus Ctenoceratina in Africa, South of the Sahara (Hymenoptera: Apoidea)
Skeleto-muscular morphogenesis of the thorax and wings of the honey bee Apis mellifera (Hymenoptera: Apidae)