A taxonomic review, including new species and new records of Philippine Obrimini stick insects (Insecta: Phasmatodea: Heteropterygidae: Obriminae) Hennemann, Frank H. Faunitaxys 2023 11 71 1 135 8NV2V Rehn & Rehn, 1939 Rehn & Rehn 1939 [287,619,1556,1579] Insecta Heteropterygidae Mearnsiana Animalia Phasmida 69 67 Arthropoda genus    Remarks. –This monotypic genus was originally described from a juvenile ♀in a very early stage of development. Since in this genus immatures look very different from adult insects in being various shades of grey and brown in colour and are so much stockier than adults with all the armature considerably more pronounced, this has resulted in the description of a synonymic genus, which emphasizes the problems that are involved in the unfortunate fact that Rehn & Rehn (1939) described many of their new taxa from immature insects. Hennemann et al.(2016: 18) have therefore synonymised  HennobrimusConle, 2006with  Mearnsiana, because the type-species merely represent fullygrown specimens of  Mearnsiana. This is the same case with a species that was described by Lit & Eusebio (2005), which is synonymised with  M. bullosabelow. There appears to be a second still undescribed species on Mount Redondo, DinagatIsland north of Mindanao ( Bank et al.,2021). The numerous citations of  Eubulidesmay be referred to in the PhasmidaSpecies File (http:// Phasmida.SpeciesFile.org).   Distribution. – Philippines, endemic. So far recorded from the islands of Mindanao and Leyte.  Species included  1.  Mearnsiana bullosaRehn & Rehn, 1939: 459, pl. 38: 47.  Distribution: Mindanao & Leyte.  2. Mearnsiana maranao  n. sp.  Distribution: Mindanao.