Species Coverage: The book documents 552 lepidopteran species recorded in the Seychelles, with 546 identified as resident species. Notably, 275 of these are endemic, highlighting the unique biodiversity of the region. ​

Illustrations: All species are meticulously illustrated across 32 color plates, showcasing typical forms, significant varieties, and sexually dimorphic characteristics. Additionally, larvae of select species are depicted on two dedicated plates. ​

Conservation Assessment: Each native resident species is evaluated using the IUCN Red List Criteria (2001), providing insights into their conservation status based on assessments from Gerlach et al., 2005.