cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/tc46tv
title: Two new species of Ancistrosyllis McIntosh, 1878 (Annelida: Pilargidae) from the Gulf of Thailand, Western Pacific

description: This dataset contains the digitized treatments in Plazi based on the original journal article Plathong, Sakanan, Plathong, Jintana, Dean, Harlan K. (2022): Two new species of Ancistrosyllis McIntosh, 1878 (Annelida: Pilargidae) from the Gulf of Thailand, Western Pacific. Zootaxa 5128 (2): 195-210, DOI: 10.11646/zootaxa.5128.2.2AbstractTwo new species of Pilargidae, Ancistrosyllis eidimtaiteae sp. nov. and A. suksani sp. nov., are described from the Gulf of Thailand. These Ancistrosyllis are characterized by having a median and two lateral antennae. Ancistrosyllis eidimtaiteae sp. nov. differs from all other species in the group by having brown pigmentation and by having both short antennae and tentacular cirri, first notopodial hooks from chaetiger 3, and a single type of neurochaetae (long non-limbate capillaries with bifid tips). Ancistrosyllis suksani sp. nov. can be distinguished from other species of Ancistrosyllis by the presence of the first notopodial hooks from chaetiger 4 and three types of neurochaetae (short, stout, falcates with a subdistal small guard, short limbates, and long bifid non-limbates). An updated key to the Ancistrosyllis species of this group is also provided.
DOI: 10.15468/87tzjx
title: New records of two roughy fish species of Hoplostethus and a confirmed record of H. crassispinus Kotlyar, 1980 (Trachichthyiformes, Trachichthyidae) from Taiwan

description: This dataset contains the digitized treatments in Plazi based on the original journal article Su, Yo, Lin, Hsiu-Chin, Ho, Hsuan-Ching (2023): New records of two roughy fish species of Hoplostethus and a confirmed record of H. crassispinus Kotlyar, 1980 (Trachichthyiformes, Trachichthyidae) from Taiwan. ZooKeys 1149: 85-101, DOI: http://dx.doi.org/10.3897/zookeys.1149.96233, URL: http://dx.doi.org/10.3897/zookeys.1149.96233
DOI: 10.15468/cj7xza
title: First collection of Torrenticolidae (Hydrachnidiae, Acari) from Yintiaoling National Nature Reserve, China, with descriptions of two new species

description: This dataset contains the digitized treatments in Plazi based on the original journal article Gu, Xinyao, Zhang, Yuhao, Zheng, Yuling, Guo, Jianjun (2023): First collection of Torrenticolidae (Hydrachnidiae, Acari) from Yintiaoling National Nature Reserve, China, with descriptions of two new species. Zootaxa 5257 (1): 131-142, DOI: 10.11646/zootaxa.5257.1.10, URL: http://dx.doi.org/10.1094/PDIS-04-22-0755-PDNAbstractTorrenticolid mites (Hydrachnidiae, Acari) are presented from Yintiaoling National Nature Reserve, China. Torrenticola multiserrater Gu & Guo sp. nov., and T. pseudoalargada Gu & Guo sp. nov. are described and illustrated as new to science; T. siamis Pešić & Smit, 2009 and T. nipponica (Enami, 1940) are reported as new records for Chongqing’s fauna. Meanwhile, this is the first report of Torrenticolidae from Chongqing, China.
DOI: 10.15468/4nz795
title: Citronella suaveolens, a new generic record for Vietnam, with a key to Vietnamese Cardiopteridaceae

description: This dataset contains the digitized treatments in Plazi based on the original journal article Nuraliev, Maxim S., Schori, Melanie, Tagane, Shuichiro, Kuznetsov, Andrey N., Kuznetsova, Svetlana P., Utteridge, Timothy M. A. (2022): Citronella suaveolens, a new generic record for Vietnam, with a key to Vietnamese Cardiopteridaceae. Phytotaxa 532 (1): 67-77, DOI: 10.11646/phytotaxa.532.1.5AbstractCitronella suaveolens is reported from Quang Nam Province in southern Vietnam, representing the first record of this species and the genus Citronella in the country and in mainland Southeast Asia in general. Detailed photographic illustrations of studied specimens are provided. A key to the Vietnamese genera and species of Cardiopteridaceae is presented. Diversity of Citronella in the Malesian region is discussed. Floristic affinities of Malesia and Eastern Indochina are highlighted by a list of illustrative examples.
DOI: 10.15468/z3c5yk
title: Redescriptions of three species in the louse genus Myrsidea (Insecta: Phthiraptera: Amblycera)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Schneider, Marek, Kolencik, Stanislav, Literak, Ivan, Sychra, Oldrich (2025): Redescriptions of three species in the louse genus Myrsidea (Insecta: Phthiraptera: Amblycera). Zootaxa 5653 (3): 411-428, DOI: 10.11646/zootaxa.5653.3.7, URL: https://doi.org/10.11646/zootaxa.5653.3.7AbstractThree species of chewing lice in the genus Myrsidea are redescribed and illustrated. They are: Myrsidea aegithali Blagoveshtchensky, 1940 from Aegithalos caudatus alpinus (Hablizl, 1783); Myrsidea flavida (Piaget, 1880) from Eurylaimus ochromalus Raffles, 1822; and Myrsidea franciscoloi Conci, 1942 from Cinclus cinclus (Linnaeus, 1758). These species are like “type species”, characterising three groups of morphotypes. Redescriptions are made from the type material. Lectotype and paralectotypes are designated for M. aegithali. We increase knowledge of the intraspecific morphological variability of these species, including phylogenetically informative characteristics, and a new host association for M. aegithali from Aegithalos concinnus.
DOI: 10.15468/4s2956
title: Three new spider species of Belisana Thorell, 1898 (Araneae, Pholcidae) from karst caves, with a list of Belisana species from Guangxi, China

description: This dataset contains the digitized treatments in Plazi based on the original journal article Zhang, Ludan, Wang, Ying, Li, Shuqiang, Zhang, Xiaoqing, Yao, Zhiyuan (2024): Three new spider species of Belisana Thorell, 1898 (Araneae, Pholcidae) from karst caves, with a list of Belisana species from Guangxi, China. ZooKeys 1209: 315-330, DOI: 10.3897/zookeys.1209.127951AbstractThree new species of the genus Belisana Thorell, 1898 are described from karst caves in Guangxi, China: Belisana langping Zhang, Li & Yao, sp. nov. (♂ ♀), B. lingui Zhang, Li & Yao, sp. nov. (♂ ♀), and B. tianyang Zhang, Li & Yao, sp. nov. (♂ ♀). In addition, a list of all Belisana species from Guangxi is also provided.
DOI: 10.15468/tbagvv
title: Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Engel, Michael S., Rozen, Jerome G., Sepúlveda-Cano, Paula A., Smith, Corey Shepard, Thomas, Jennifer C., Ospina-Torres, Rodulfo, Gonzalez, Victor H. (2019): Nest Architecture, Immature Stages, and Ethnoentomology of a New Species of Trigonisca from Northern Colombia (Hymenoptera: Apidae). American Museum Novitates 2019 (3942): 1, DOI: 10.1206/3942.1, URL: https://bioone.org/journals/american-museum-novitates/volume-2019/issue-3942/3942.1/Nest-Architecture-Immature-Stages-and-Ethnoentomology-of-a-New-Species/10.1206/3942.1.fullABSTRACT
DOI: 10.15468/5ueuvv
title: Habitat associations of rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta fry

description: This dataset contains the digitized treatments in Plazi based on the original journal article Fetherman, Eric R., Avila, Brian W. (2022): Habitat associations of rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta fry. Journal of Fish Biology 100 (1): 51-61, DOI: 10.1111/jfb.14918, URL: http://dx.doi.org/10.1111/jfb.14918AbstractHabitat restoration activities continue to increase in large rivers, but many of these projects focus on improving juvenile or adult habitats. Incorporating the habitat associations of fry into restoration designs will allow for broader successes from restoration for all life stages and may be useful for either multispecies or specific-species management. This study investigated the habitat associations of rainbow trout Oncorhynchus mykiss and brown trout Salmo trutta fry in the upper Colorado River, focusing on the mean substrate size (D 50), velocity (m s 1), depth (m) and presence of wood in near-shore habitats. S. trutta and O. mykiss were found in higher numbers in fry sites with a D 50 of 151 mm (ranging from 96 to 206 mm), velocities ranging from 0.20 to 0.23 m s 1 and depths ranging from 0.17 to 0.18 m. Although there was considerable overlap in habitat associations between the two species, there may be opportunities for single-species management, if this is a goal of such restoration activities, by adjusting design criteria based on differing habitat associations. In addition, the results suggest that including larger particle sizes in near-shore habitats and upstream of fry sites could decrease Tubifex tubifex habitat and thereby fry infection severity by reducing exposure to Myxobolus cerebralis. Stocking, interspecific competition and/or the presence of pathogens can affect fry habitat associations and cause deviations from demonstrated suitability indices. As such, evaluating system-specific differences in habitat associations may allow future habitat restoration activities to be more effective.
DOI: 10.15468/rw2hkh
title: Taxonomic and nomenclatural notes on some Andes species (Hemiptera, Fulgoromorpha, Cixiidae) with two synonymies and one homonymy

description: This dataset contains the digitized treatments in Plazi based on the original journal article Haas, Matthé Cornelis De, Cesne, Maxime Le, Bourgoin, Thierry (2024): Taxonomic and nomenclatural notes on some Andes species (Hemiptera, Fulgoromorpha, Cixiidae) with two synonymies and one homonymy. Zootaxa 5403 (4): 495-500, DOI: 10.11646/zootaxa.5403.4.8, URL: http://dx.doi.org/10.11646/zootaxa.5360.3.8AbstractTwo African Cixiidae species names, Andes goniodes and Andes synavei proposed by Emeljanov in 2001 to correct two homonymies published by Synave in 1953, are synonymized respectively with Andes muiri and Andes spinifer, which were already proposed as replacement names by Synave in 1970. Additionally, the name Andes synafenni is proposed as new for the Vietnamese species Andes truncatus Fennah, 1978 preoccupied by the African species Andes truncatus Synave, 1953.
DOI: 10.15468/cvdjat
title: Two new species of the genus Hoplopeza Bezzi (Diptera, Hybotidae, Ocydromiinae) from the high Andean forests of Colombia

description: This dataset contains the digitized treatments in Plazi based on the original journal article Henao-Sepúlveda, Carolina, Barros, Luana Machado, Ale-Rocha, Rosaly, Wolff, Marta (2023): Two new species of the genus Hoplopeza Bezzi (Diptera, Hybotidae, Ocydromiinae) from the high Andean forests of Colombia. Zootaxa 5297 (1): 87-100, DOI: 10.11646/zootaxa.5297.1.4, URL: http://dx.doi.org/10.1094/PDIS-04-22-0755-PDNAbstractTwo new Andean species of Hoplopeza Bezzi are described and illustrated: Hoplopeza colombiana sp. nov. and Hoplopeza rafaeli sp. nov. These species are the first record from the Andean ecosystem of Colombia. In addition, the genus is diagnosed, the first description of the female terminalia, as well as a key and distribution map of the Andean species of the genus are presented.
DOI: 10.15468/6de6nx
title: A new species and a newly recorded subgenus of Lipotriches Gerstaecker, 1858 (Hymenoptera, Apoidea, Halictidae, Nomiinae) from China

description: This dataset contains the digitized treatments in Plazi based on the original journal article Zhang, Dan, Niu, Ze-Qing, Pauly, Alain, Da, Wa, Zhu, Chao-Dong (2022): A new species and a newly recorded subgenus of Lipotriches Gerstaecker, 1858 (Hymenoptera, Apoidea, Halictidae, Nomiinae) from China. ZooKeys 1090: 103-111, DOI: http://dx.doi.org/10.3897/zookeys.1090.75872, URL: http://dx.doi.org/10.3897/zookeys.1090.75872
DOI: 10.15468/vbz7az
title: Three New Carnivorous sponge species (Demospongiae: Cladorhizidae) from the Seamounts of the Central Indian Ridge

description: This dataset contains the digitized treatments in Plazi based on the original journal article Rengaiyan, Periasamy, Ingole, Baban (2022): Three New Carnivorous sponge species (Demospongiae: Cladorhizidae) from the Seamounts of the Central Indian Ridge. Zootaxa 5162 (5): 451-486, DOI: 10.11646/zootaxa.5162.5.1AbstractDeep-sea sponges are an imperative component of benthos. They accumulate the suspended organic matter by filtering large quantities of water and, with their intricate structures, provide the most suitable habitats for various associated organisms. We describe three new cadorhizid sponges from the Central Indian Ridge (CIR), Indian Ocean. The sponges are part of the benthic sledge collection conducted onboard the MGS Sagar in the CIR region. A detailed taxonomic description of two novel species, Asbestopluma (Asbestopluma) indiyansis sp. nov., and Asbestopluma (A.) bharatiyae sp. nov. are provided based on the morphological and molecular (mtCOI and 28S) markers. In addition, another new carnivorous species Chondrocladia sagari sp. nov. is described based on the morphological and mtCOI marker. The systematic and descriptions of new species are discussed based on the structural and phylogenetic analysis. Our study shows that the cladorhizid fauna of the seamounts from the CIR are unique and represent regionally endemic benthic habitats.
DOI: 10.15468/rayjmb
title: Phylogenetic analysis of the Niphargus orcinus species- aggregate (Crustacea: Amphipoda: Niphargidae) with description of new taxa

description: This dataset contains the digitized treatments in Plazi based on the original journal article Fišer, Cene, Trontelj, Peter, Sket, Boris (2006): Phylogenetic analysis of the Niphargus orcinus species- aggregate (Crustacea: Amphipoda: Niphargidae) with description of new taxa. Journal of Natural History (J. Nat. Hist.) 40 (41 - 43): 2265-2315, DOI: 10.1080/00222930601086572, URL: http://dx.doi.org/10.1080/00222930601086572AbstractThe Niphargus orcinus aggregate, also‘ ‘subgenus Orniphargus’ ’ of the genus Niphargus, is a widely distributed assemblage of large-bodied amphipods. Although it comprises the most prominent European groundwater animals, its phylogeny has not yet been scrutinized and its monophyly has never been tested. In this study, 30 putative‘ ‘ Orniphargus’ ’ taxa and 14 other Niphargus and outgroup species were examined cladistically using a matrix of 71 morphological characters. The strict consensus tree constructed of 34 equally parsimonious trees demonstrated that‘ ‘ Orniphargus’ ’ does not constitute a monophylum. Most of the species were divided into two large clades. Both clades contain species from the western Balkans (mainly the Dinaric Karst) with partly overlapping ranges. Niphargus croaticus pachytelson and N. orcinus redenseki are elevated to species rank. Four new species are described: N. dolichopus sp. n., N. polymorphus sp. n., N. dabarensis sp. n. (all Bosnia and Herzegovina) and N. lourensis sp. n. (Greece).
DOI: 10.15468/99gcwc
title: Urolophus kapalensis sp. nov., a new stingaree (Myliobatiformes: Urolophidae) off eastern Australia.

description: This dataset contains the digitized treatments in Plazi based on the original journal article Gordon K. Yearsley, Peter R. Last (2006): Urolophus kapalensis sp. nov., a new stingaree (Myliobatiformes: Urolophidae) off eastern Australia. Zootaxa 1176: 41-52, URL: http://www.zoobank.org/urn:lsid:zoobank.org:pub:17C50D3D-A7A7-428C-9C3F-F95733A3C113
DOI: 10.15468/5yr27d
title: Four new species of Aspidistra (Asparagaceae) from southern China

description: This dataset contains the digitized treatments in Plazi based on the original journal article Lin, Chun-Rui, Xu, Wei-Bin, Huang, Yu-Song, Wang, Bing-Mou, Liu, Yan (2023): Four new species of Aspidistra (Asparagaceae) from southern China. Phytotaxa 587 (2): 121-135, DOI: 10.11646/phytotaxa.587.2.2, URL: http://dx.doi.org/10.1094/PDIS-04-22-0755-PDNAbstractFour new species of Aspidistra (Asparagaceae), namely A. shiwandashanensis, A. ovatianthera, A. yunbiaoi and A. xiaoyunii, all local China endemics, are described and illustrated. The first three species are from Guangxi Zhuang Autonomous Region, and the last one is from Guangdong Province. The morphology, ecology, phenology, distribution, pollen morphology and the photo are provided for all the mentioned taxa.
DOI: 10.15468/ncnrvh
title: Water mites of the genus Lebertia Neuman (Acari: Hydrachnidia: Lebertiidae) from China, with description of three new species

description: This dataset contains the digitized treatments in Plazi based on the original journal article Wang, Yu, Jin, Daochao, Guo, Jianjun (2024): Water mites of the genus Lebertia Neuman (Acari: Hydrachnidia: Lebertiidae) from China, with description of three new species. Zootaxa 5399 (3): 231-240, DOI: 10.11646/zootaxa.5399.3.2, URL: http://dx.doi.org/10.11646/zootaxa.5399.3.2AbstractThree new water mite species of the genus Lebertia Neuman, 1880 — Lebertia (Lebertia) gimina sp. nov., Lebertia (Mixolebertia) dinghuensis sp. nov. and Lebertia (Mixolebertia) wuyiensis sp. nov. —are described from China, along with one new Chinese record— Lebertia (Lebertia) ignatowi Sokolow, 1930. The key characteristics for the subgenera of Lebertia are given.
DOI: 10.15468/up4887
title: A New Genus And Species Of Lachnophorini And Two New Species Of Lebiini From Costa Rica (Coleoptera: Carabidae)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Erwin, Terry L. (2000): A New Genus And Species Of Lachnophorini And Two New Species Of Lebiini From Costa Rica (Coleoptera: Carabidae). The Coleopterists Bulletin 54 (3): 279-283, DOI: 10.1649/0010-065x(2000)054[0279:angaso]2.0.co;2AbstractA new genus and new species of Lachnophorini and 2 new species of Lebiini from Costa Rican are described (type localities in parentheses): Quammenis spectabilis, n. gen., n. sp. (type locality: COSTA RICA: Heredia Province, Estacíon Magsasay, Parque Nacional Braulio Carrillo, 200m, LN264600,531100); Lebia (Chelonodema) inbio, n. sp. (type locality: Guanacaste Province, Estacíon Pitilla, 9 km S Santa Cecilia, 700 m, LN329950,380450 #4355); Agra yola, n. sp. (type locality: Guanacaste Province, Estacíon Pitilla, 9 km S Santa Cecilia, 700 m, LN329650,378600 #4600).
DOI: 10.15468/cc48r9
title: A new species of Calvisia (Calvisia) from Thailand and Myanmar and notes on C. (Calvisia) sangarius from Peninsular Malaysia (Phasmida, Lonchodidae, Necrosciinae)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Bresseel, Joachim, Constant, Jérôme, Jiaranaisakul, Kawin, Hübner, Christian (2022): A new species of Calvisia (Calvisia) from Thailand and Myanmar and notes on C. (Calvisia) sangarius from Peninsular Malaysia (Phasmida, Lonchodidae, Necrosciinae). Belgian Journal of Entomology 133: 1-23, DOI: 10.5281/zenodo.11589818AbstractA colourful new species of Calvisia StÅl, 1875, C. (Calvisia) khlongsokana sp. nov., is described from Southwest Thailand and South Myanmar based on both sexes, nymphs and eggs. The new species is placed in the subgenus C. (Calvisia) StÅl, 1875 and compared to the closely related species C. (Calvisia) sangarius (Westwood, 1859). The female of C. (Calvisia) sangarius (Westwood, 1859) and both sexes and egg of C. (Calvisia) khlongsokana sp. nov. are illustrated and a distribution map for both species is provided. Females of the new species occur in two distinct colour forms presumed to be aposematic. Several hypotheses are provided for the natural occurrence of these two morphs with freQuency-dependant selection as a possible driver.
DOI: 10.15468/mgjcwq
title: Agaricus section Minores: New and noteworthy species from India

description: This dataset contains the digitized treatments in Plazi based on the original journal article Arya, C. P., Pradeep, C. K. (2024): Agaricus section Minores: New and noteworthy species from India. Phytotaxa 634 (3): 255-273, DOI: 10.11646/phytotaxa.634.3.5, URL: http://dx.doi.org/10.11646/phytotaxa.634.3.5AbstractIn this study, four species of Agaricus sect. Minores are presented based on morphological and nrITS based phylogenetic analyses (Maximum Likelihood and Bayesian Inference). The molecular analysis and morphological characteristics supported the placement of these species in A. sect. Minores. Three species, viz., Agaricus indicus, A. palodensis, and A. wayanadensis are new to science, while A. purpureofibrillosus is a new phytogeographical record. Comprehensive descriptions, photographs, phylogenetic analyses results, and comparisons with related species are provided.Key word s: 3 new species, Agaricaceae, Kerala, ITS, phylogeny, taxonomy
DOI: 10.15468/m6848t
title: First records of the order Siphonophorida from Madagascar and Mauritius (Diplopoda)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Wesener, Thomas (2014): First records of the order Siphonophorida from Madagascar and Mauritius (Diplopoda). Revue suisse de Zoologie 121 (3): 415-423, DOI: 10.5281/zenodo.5823062
DOI: 10.15468/zfreb8
title: Cranial skeletogenesis of one of the largest amphibians, Andrias japonicus, provides insight into ontogenetic adaptations for feeding in salamanders

description: This dataset contains the digitized treatments in Plazi based on the original journal article Ishikawa, Kaoru, Taguchi, Yuki, Kobayashi, Ryomei, Anzai, Wataru, Hayashi, Toshinori, Tokita, Masayoshi (2022): Cranial skeletogenesis of one of the largest amphibians, Andrias japonicus, provides insight into ontogenetic adaptations for feeding in salamanders. Zoological Journal of the Linnean Society 195 (1): 299-314, DOI: 10.1093/zoolinnean/zlab038, URL: https://academic.oup.com/zoolinnean/article/195/1/299/6317662
DOI: 10.15468/ymjfy4
title: Pteronemobius yuani Ma & Wang sp. nov. and Metiochodes tianfuensis Ma, Yuan & Gu sp. nov., new species of Trigonidiidae from China (Orthoptera: Trigonidiidae; Trigonidiinae)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Wang, Rui, Yuan, Wei, Zheng, Yan-Na, Gu, Jun-Jie, Ma, Li-Bin (2023): Pteronemobius yuani Ma & Wang sp. nov. and Metiochodes tianfuensis Ma, Yuan & Gu sp. nov., new species of Trigonidiidae from China (Orthoptera: Trigonidiidae; Trigonidiinae). Zootaxa 5361 (4): 573-578, DOI: 10.11646/zootaxa.5361.4.7, URL: https://www.mapress.com/zt/article/download/zootaxa.5361.4.7/52212AbstractThe article describes two new species of Trigonidiidae Saussure, 1874, namely Pteronemobius yuani Ma & Wang sp. nov. and Metiochodes tianfuensis Ma, Yuan & Gu sp. nov. The former belongs to Pteronemobius Jacobson, 1904, and is similar to Pteronemobius gifuensis (Shiraki, 1911) but has a long and narrow epiphallic median lobe, and the outer posterior tibia is armed with three dorsal spurs; while the latter belongs to Metiochodes Chopard, 1932, which is similar to Metiochodes flavescens Chopard, 1932, but the epiphallic median lobe is concave. Here, we describe and illustrate these new species.
DOI: 10.15468/sde8t6
title: Taxonomic review of the Crematogaster ransonneti-group in Asia, with description of a new species from Malaysia (Hymenoptera: Formicidae: Myrmicinae)

description: This dataset contains the digitized treatments in Plazi based on the original journal article Hosoishi, Shingo (2020): Taxonomic review of the Crematogaster ransonneti-group in Asia, with description of a new species from Malaysia (Hymenoptera: Formicidae: Myrmicinae). Raffles Bulletin of Zoology 68: 759-768, DOI: 10.26107/RBZ-2020-0087Abstract. The Crematogaster ransonneti -group is revised and three species are recognised, including one new to science. The C. ransonneti -group contains C. cornuta Crawley, 1924; C. keris, new species; and C. ransonneti Mayr, 1868. The species group is distinguished among Asian Crematogaster species by developed propodeal spines and a diamond-shaped petiole. A key to the species of the group based on the worker caste is given. The mouthparts of C. keris, new species, are also described in detail. Morphological characters suggest a close relationship with the C. fraxatrix -group.