Descriptions of the egg case and larva of Anacaena and review of the knowledge and relationships between larvae of Anacaenini (Coleoptera: Hydrophilidae: Hydrophilinae)
Third instar larva of Anacaena cordobana Knisch, and the egg case of Anacaena lutescens (Stephens) are described, taxonomic status of the immature stages of Anacaenini is clarified. All Anacaenini genera with known larvae are diagnosed.