The study presents the first description of male specimen (allotype) of the pinworm species Lemuricola (Lemuricola) pongoi, parasitising Sumatran orangutan (Pongo abelii) from Sumatra (Indonesia). The male specimen morphology presents all features fully corresponding with diagnose of the genus and subgenus Lemuricola. We are agreeing that Protenterobius is synonymous with Lemuricola because the length of tail appendix in males is not a sufficient feature for separation of the genera or subgenera. For L. (L.) pongoi male are characteristic features: body length (4,803 microm), total oesophagus length (530), tail length (235), tip of tail length (188) and spicule length (90).

Department of Botany and Zoology Faculty of Science Masaryk University Brno Czech Republic

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