This article highlights two pests on USDA’s watch list-Oak Splendor Beetle (Agrilus biguttatus), a borer that could prove difficult to find?and Siberian Silk Moth (Dendrolimus sibiricus), a defoliator-that could be easy to find should either ever be introduced. Descriptions, life cycles and hosts of the Oak Splendor Beetle and Siberian Silk Moth are covered.