Two new species of Wockia Heinemann, 1870 (Lepidoptera: Urodidae), W. chewbacca and W. mexicana, are described from primary dry-forests in western México. A new host record is reported for the genus from larvae of W. chewbacca feeding on leaves of Casearia nitida (L.) Jacq. (Salicaceae). Several shared genitalic features and DNA barcode similarities suggest a congeneric relationship between the two Mexican species but uncertain generic placement within Urodidae. Scanning electron micrographs of the larva and illustrations of the larva and pupa of Wockia chewbacca are provided, along with illustrations of male and female genitalia of both Mexican species. Three unusual features found in the larval stage are documented for W. chewbacca include; a multi-lobed integument, recurved D2 seta on the shield of T1, and a “hydroid bush” consisting of multiple sensilla trichoidea on the apical turret of the antenna. Locality data indicate the existence of Neotropical elements of Wockia and an expanded distributional range for the genus.
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