A catalog of the lanternfy specimens housed in the Natural History Museum of the National Science Museum, Thailand (THNHM) is presented. A total of 157 specimens of 33 species in ten genera are deposited in THNHM. Seven species of Fulgoridae are new records for Thailand: Polydicta tricolor (Westwood, 1845), Pyrops ducalis (Stål, 1863), Pyrops karenius (Distant, 1891), Pyrops oculatus (Westwood, 1838), Pyrops pyrorhynchus (Donovan, 1800), Saiva bullata (Distant, 1891) and Saiva cardinalis (Butler, 1874). Most specimens of the family were collected in the past 20 years. High-resolution images of the named species are provided.