Indian species of Microweiseinae are reviewed, comprising eight species (five species of Serangium Blackburn, one species of Microserangium Miyatake, and two species of Scymnomorphus Weise, including one new species from the southern Indian state of Kerala, Scymnomorphus ochraceus sp. n.). Illustrated diagnostic accounts are given for all species with details of distribution, biology, and host insects, wherever they are known. Immature stages are illustrated for Serangium parcesetosum Sicard and Serangium chapini (Kapur). An updated checklist of the Microweiseinae of India is given. The need for focused collections and systematic studies to unearth the hidden diversity of Indian Microweiseinae is discussed, and comments on their poor utilization in applied biological control in India are made.