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Contents a Peer-Reviewed Open-Access Journal Zookeys 900 ISSN 1313-2970 (online) ISSN 1313-2989 (print) Contents A peer-reviewed open-access journal ZooKeys 900 Olindias deigo sp. nov., a new species (Hydrozoa, Trachylinae, Limnomedusae) 1 from the Ryukyu Archipelago, southern Japan Sho Toshino, Miyako Tanimoto, Ryo Minemizu 2019 A new species of Onitis Fabricius, 1798 from south-eastern Africa 23 (Coleoptera, Scarabaeidae, Scarabaeinae, Onitini) Launched to accelerate biodiversity research François Génier, Philippe Moretto Altitudinal and seasonal distribution of butterflies (Lepidoptera, Papilionoidea) 31 in Cerro Bufa El Diente, Tamaulipas, Mexico Edmar Meléndez-Jaramillo, César Cantú-Ayala, Uriel Jeshua Sánchez-Reyes, Fatima Magdalena Sandoval-Becerra, Bernal Herrera-Fernández Four new species and seven new records of Promalactis Meyrick, 1908 69 (Lepidoptera, Oecophoridae) from Laos Sora Kim, Yang-Seop Bae, Seunghwan Lee A new leafmining pest of guava: Hesperolyra guajavifoliae sp. nov., with comments 87 on the diagnostics of the endemic Neotropical genus Hesperolyra van Nieukerken (Lepidoptera, Nepticulidae) Jonas R. Stonis, Andrius Remeikis, Arūnas Diškus, Svetlana Orlovskytė, Sergio A. Vargas, Maria Alma Solis Notes on the genus Psychostrophia Butler, 1877 (Lepidoptera, Epicopeiidae), 111 with description of a new species Si-Yao Huang, Min Wang, Xiao-Ling Fan Description of the male of Craugastor yucatanensis (Lynch, 1965) 129 (Anura, Craugastoridae), its advertisement call, and additional data on females Rubén Alonso Carbajal-Márquez, Luis F. Díaz-Gamboa, Tania Ramírez-Valverde, Christian M. García-Balderas, Pedro E. Nahuat-Cervera, José Rogelio Cedeño-Vázquez Psychostrophia micronymphidiaria Huang & Wang, sp. nov. 900 2019 http://zookeys.pensoft.net ! http://zookeys.pensoft.net AUTHOR GUIDELINES Accepted Papers: Same as above, Examples of such databases include, Authors are kindly requested to sub- but ‘’In press’’ appears instead the but are not limited to: mit their manuscript only through page numbers. • Zoobank (www.zoobank.org), the online submission module at Electronic Journal Articles: Mal- • Morphbank (www.morphbank.net), www.pensoft.net/journals/zookeys. let J, Willmott K (2002) Tax- • Genbank (www.ncbi.nlm.nih. For those who want their work rapidly known to the World ! In case of difficulties with the sub- onomy: renaissance or Tower gov/Genbank), mission procedure, please contact of Babel? Trends in Ecology • BarCode (www.barcodinglife.org) [email protected]. Full text of au- and Evolution 18 (2): 57–59. 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