Ischnognatha semiopalina Felder & Rogenhofer, 1874

Type locality. [French Guiana] Guyana gall.

Type specimens. Undisclosed number of ♀ syntypes (NHMUK; one of the syntypes labeled TYPE).

Taxonomic references. Felder (1874), Godman & Salvin (1884), Watson & Goodger (1986) and Vincent & Laguerre (2014).

Material examined. Brazil, Maranhão: Açailândia, 4°57'14.17"S / 47°30'11.08"W. Light traps, 19–27.xi.1990, V.O. Becker legit, 1 specimen (VOB).

Month records in Maranhão. November.

Geographical records in Brazil. Amapá, Amazonas, Pará, Rondônia ( Amazon), São Paulo and Rio de Janeiro (Atlantic Forest).