Robert L. Usinger

1912 – 1968

• Methods and principles of systematic zoology
• Monograph of Cimicidae
• Aquatic insects of California
• Elements of zoology
• Robert Leslie Usinger
• Sierra Nevada natural history
• The life of rivers and streams
• Biology of aquatic and littoral insects
• Classification of the Aradidae (Hemiptera-Heteroptera)
• Classification of the Aradidae (Hemiptera-Heteroptera)
• Insects and other invertebrates from Laysan Island
• Polyctenidae