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Tuesday, January 28th, 2025
| Time | Event | ||||||
| 10:40a | [Botany • 2020] Philodendron guadarramanum (Araceae) • A New Species from Tabasco, Mexico
Abstract We describe and illustrate Philodendron guadarramanum, a new species of Araceae from Tabasco, Mexico. This species grows in montane cloud forest and evergreen tropical rainforest at elevations between 700 and 1100 m. It is similar to Philodendron purulhense, but differs from that species by having petioles broadly and sharply sulcate adaxially, with an acute medial rib, leaf blades with more basal veins and more primary lateral veins per side, and inflorescences more numerous per axil. Araceae, endemic, Mexico, Philodendron, Tabasco, Monocots
Philodendron guadarramanum Díaz Jim., Croat & Aguilar-Rodr., sp. nov. Eponymy:—The species is named in honor of the Mexican botanist, M.C. María de los Ángeles Guadarrama Olivera, who for many years directed and supported the study of the flora of Tabasco. María de los Ángeles is an expert in Commelinaceae. She was a professor and director of the herbarium (UJAT) of the Universidad Juarez Autónoma de Tabasco and is now retired. Pedro Díaz Jiménez, Pedro A. Aguilar-Rodríguez, Thomas B. Croat, Marco Cedeño-Fonseca, Martin Alarcón Montano, Yossi Yovel and M. Cristina Macswiney G. 2020. Philodendron guadarramanum (Araceae), A New Species from Tabasco, Mexico. Phytotaxa. 468(3); 296-300. DOI: doi.org/10.11646/phytotaxa.468.3.5 | ||||||
| 10:46a | [Botany • 2021] Miconia waimiri-atroari (Melastomataceae: Miconieae) • A New Species from the Brazilian Amazon Forest
Abstract Miconia waimiri-atroari is presented here as a new species from the Brazilian Amazon Forest. This new species has discolorous leaf blades, inflorescences with scorpioid branches, and petals and antesepalous stamen connectives with glandular trichomes. It has been misidentified as Miconia argyrophylla, another species from the Amazon Forest that has this same set of characters. However, the new species has cylindrical young branches (vs. quadrangular in M. argyrophylla), stellate trichomes on leaf abaxial surface (vs. arachnoid), stamens with yellow filaments that turn red in old flowers (vs. stamens with white filaments that only turn pale in old flowers), and style with glandular trichomes (vs. glabrous). At the moment, the species is only known from a small area north of Manaus, state of Amazonas, Brazil. Morphological description, illustrations, general comments and comparison to other similar species are also provided. Albicans clade, Eudicots, Miconia argyrophylla, Neotropics, Taxonomy
Miconia waimiri-atroari sp. nov. Etymology:—The new species is named after the indigenous people of Waimiri-Atroari, whose territory is located near the BR-174, between Manaus (Amazonas) and Boa Vista (Roraima), where the species occurs. During the construction of the BR-174, mainly in the 1960’ and 1970’s, these people have suffered a massive genocide by the military government of that time, and lost part of their land to farmers, squatters and the state (Sousa et al. 2020).Besides the BR-174, the Balbina Dam and mining companies have also explored the land of the Waimiri-Atroari, contributing to population decrease from 3000 in 1972 to 350 people in 1983 (Damasio 2019). The epithet is a name in apposition. Julia MEIRELLES, Mariana Furlan SARTOR, Rennan Lopes CHAGAS and Mayara Krasinski CADDAH. 2021. Miconia waimiri-atroari (Miconieae, Melastomataceae): A New Species from the Brazilian Amazon Forest. Phytotaxa. 521(3); 203-211. DOI: doi.org/10.11646/phytotaxa.521.3.5 | ||||||
| 11:00a | [Herpetology • 2025] Trimeresurus erythrochloris • A New Species of Karst-associated Pitviper of the Trimeresurus kanburiensis Complex (Serpentes: Viperidae) from eastern Thailand
Abstract We describe a new species of karst-dwelling pitviper from Sa Kaeo Province in eastern Thailand based on morphological and molecular (2,296 bp from cyt b, ND4, and 16S rRNA mitochondrial DNA genes) lines of evidence. Our phylogenetic analysis places the new species as a sister lineage of Trimeresurus venustus (p = 2.7% and 3.7% for cyt b and ND4 genes, respectively). It is also closely related to T. cardamomensis (p = 2.1% and 2.6% for cyt b and ND4 genes, respectively). To date, the new species is known from only two adult specimens, and its distribution seems to be restricted to a narrow limestone karst area in the province of Sa Kaeo in Thailand near the national border with Cambodia. Additional studies are required to understand its life history, distribution, and conservation status. The discovery of this new species brings the total number of known Trimeresurus to 51 species, 19 of which occur in Thailand, including five that are endemic to this country. Key words: limestone, morphology, molecular phylogeny, systematics, Sa Kaeo Province 
Trimeresurus erythrochloris sp. nov. Diagnosis. The new species differs from other members of the subgenus Trimeresurus by the following combination of characters: dorsal scales in 23-21-15 rows, moderately keeled except the outermost rows, which are smooth; ventral scales 164–172; subcaudals 54–67, all paired; iris golden yellow in both sexes; body dorsally grass green with irregular, serrated, reddish-brown transverse markings; suborbital stripe white and wide in male, absent in female; ventrolateral stripe distinct, present on the first few dorsal scale rows, white and red in male, white in female; throat, chin, and lower labials light turquoise; ventral surfaces pale blue in male, pale green in female; tail dorsally light brick-red mottled with dark spots, ventrally with irregular white markings; hemipenis with welldeveloped pointed almost spine-like papillae at its base. Etymology. The species name “erythrochloris” is a Latinized adjective in the nominative singular, masculine gender, derived from the classical Greek adjective eruthros (ἐρυθρός), “erythros”, meaning “red”, and from the adjective chloros (χλωρός), “chloris”, meaning “green”. The species name is given in reference to the beautiful dorsal coloration of the new species, which consists of red bands on the green background. We suggest the following common names for the new species: “Ngu Khiew Hang Mai Lai Yhak” (งูเขียวหางไหม้ลายหยัก) (in Thai), “Red-barred Green Pitviper” (in English), and “Krasno-zelenaya bambukovaya kufiya” (Красно-зеленая бамбуковая куфия) (in Russian).
 Parinya Pawangkhanant, Sabira S. Idiiatullina, Ton Smits, Ian Dugdale, Andrew Pierce, Chatmongkon Suwannapoom and Nikolay A. Poyarkov. 2025. A New Species of Karst-associated Pitviper of the Trimeresurus kanburiensis Complex (Squamata: Viperidae) from eastern Thailand. TAPROBANICA. 14(1); 1–15. DOI: doi.org/10.47605/tapro.v14i1.347 | ||||||
| 2:05p | [Entomology • 2025] Psen fronistriatus & P. scabrosus • Two New Species of Psen Latreille, 1796 (Hymenoptera: Apoidea: Crabronidae) from China, with A Key to Psen Species of China
Abstract Two new species of the genus Psen Latreille, 1796, namely Psen fronistriatus sp. nov. and Psen scabrosus sp. nov. are described and illustrated from China. A key to the Chinese species of Psen is also provided. Key words: Crabronidae, digger wasps, key, taxonomy
Psen fronistriatus sp. nov. Etymology: The specific name is derived from two Latin words: froni - (= frons) and -striatus (= striate), referring to the upper frons weakly striate. Psen scabrosus sp. nov. Etymology: The specific name from Latin word: scabrosus (= scabrous), referring to the head and thorax with large, scabrous punctures. Yao Deng, Li Ma, Qiang Li. 2025. Two New Species of Psen Latreille, 1796 (Hymenoptera, Apoidea, Crabronidae) from China, with A Key to Psen Species of China. ZooKeys. 1224: 87-108. DOI: doi.org/10.3897/zookeys.1224.133244 | ||||||
| 2:24p | [Arachnida • 2024] Tityus achilles • Biomechanics of Venom Delivery in South America’s First Toxungen-spraying Scorpion
Abstract Venom is a metabolically expensive secretion used sparingly in a variety of ecological contexts, most notably predation and defence. Accordingly, few animals employ their toxins from a distance, and venom-squirting behaviour is only known from select taxa. In scorpions, species belonging to two genera are known to spray venom when threatened, and previous work in Parabuthus transvaalicus shows that venom delivery depends on perceived levels of threat. Here, I describe Tityus (Tityus) achilles sp. nov., a new species of buthid scorpion from Cundinamarca, Colombia. Remarkably, this species is capable of venom spraying, a first for both the genus and the South American continent. Using frame-by-frame video analysis and ballistic equations, I show that T. (Tityus) achilles sp. nov. employs not one, but two types of airborne defences with dramatic differences in reach and venom expenditure. Further, the new species uses an unusually large reserve of prevenom-like secretion for spraying, as opposed to the costly venom used by other spraying scorpions. In light of these key specializations, I propose that toxungen spraying convergently evolved in response to different selection pressures, laying the groundwork for future investigation. behaviour, Colombia, evolutionary biology, new species, taxonomy, toxin, toxungen, venom spitting    Léo Laborieux. 2024. Biomechanics of Venom Delivery in South America’s First Toxungen-spraying Scorpion. Zoological Journal of the Linnean Society. 202(4) zlae161. DOI: doi.org/10.1093/zoolinnean/zlae161 | ||||||
| 2:24p | [Entomology • 2024] Metapocyrtus inangsabong, M. lumad & M. uphagpula • Three New Mimetic Weevils (Coleoptera: Curculionidae: Entiminae) from Mt. Candalaga, Davao de Oro, Mindanao Island, Philippines
Abstract Three new species of Metapocyrtus: Metapocyrtus inangsabong Cabras, Obrial & Agbas sp. nov., Metapocyrtus lumad Cabras, Obrial & Agbas sp. nov., and Metapocyrtus (Trachycyrtus) uphagpula Cabras, Obrial & Agbas sp. nov. are described and illustrated. Short ecological notes on the species’ habitat, mimicry with other weevils and beetles, and the association between Nepenthes candalaga and Pachyrhynchini in the Philippines are also presented. Coleoptera, Biodiversity, endemic, new species, mimicry, Pachyrhynchini, weevils, Nepenthes    Metapocyrtus inangsabong Cabras, Obrial & Agbas sp. nov., Metapocyrtus lumad Cabras, Obrial & Agbas sp. nov., Metapocyrtus (Trachycyrtus) uphagpula Cabras, Obrial & Agbas   Graden G. OBRIAL, Daven JAYSON D. AGBAS, Milton Norman D. MEDINA and Analyn A. CABRAS. 2024. Three New Mimetic Weevils (Coleoptera, Curculionidae, Entiminae) from Mt. Candalaga, Davao de Oro, Mindanao Island, Philippines. Zootaxa. 5543(4); 438-454. DOI: doi.org/10.11646/zootaxa.5541.4.2 | ||||||
| 2:25p | [Invertebrate • 2025] Coecobrya microphthalma • The Thermal Tolerance of Springtails in a Tropical Cave, with the Description of a New Coecobrya Species (Collembola: Entomobryidae) from Thailand
Abstract A new species of Collembola in the genus Coecobrya, C. microphthalma sp. nov., is described from a cave environment in Saraburi province, central Thailand. The new species is the second described species of the boneti-group found in the country. It is most similar to C. chompon Nilsai, Lima & Jantarit, 2022, which is also described from a Thai cave. However, the new species is morphologically different from C. chompon in having orange dot pigmentation on its body and a combination of other morphological characteristics such as the number of sublobal hairs on the maxillary outer lobe and the number of medio-sublateral mac on Th. II, Abd. I, Abd. III and Abd. IV and the anterior face of the ventral tube. The morphological comparison of all known boneti species and a key to the world species of Coecobrya of the boneti-group are given. Coecobrya microphthalma sp. nov. was successfully cultured in the laboratory. The thermal tolerance of the new species was studied and tested with seven different temperature experiments (27 °C as a control, 30, 32, 33, 34, 35 and 36 °C). The results showed that C. microphthalma sp. nov. cannot survive at a temperature higher than 32 °C after exposure to the experimental heat for 7 and 14 consecutive days. At 27, 30 and 32 °C, C. microphthalma sp. nov. remained alive and produced eggs, but the duration of egg production and number of egg-laying days significantly declined when the temperature increased (p < 0.001). An interesting aspect of their reproduction concerns temperature. At 32 °C (5 °C above the control temperature), the F1 generation survived, was active and was able to molt to the adult stage. However, specimens were unable to produce the next generation of offspring. For postembryonic development, C. microphthalma sp. nov. required six molts to reach the adult stage. The development rate (from egg to adult) varied and differed significantly between the tested temperatures (p < 0.001). An increase in temperature from the control temperature significantly accelerated the developmental rate from egg to juvenile instars to adult with a statistical significance (p < 0.01). This study is the first attempt that provide information on the impact of increasing temperature on the population dynamics, reproductive capacity and life history of a subterranean tropical Collembola. Keywords: breeding experiment; cave species; global warming; life history traits; thermal tolerance; taxonomy
Taxonomy Class Collembola Lubbock, 1870 Order Entomobryomorpha Börner, 1913 Family Entomobryidae Tömösváry, 1882 Subfamily Entomobryinae Schäffer, 1896 Genus Coecobrya Yosii, 1956 Coecobrya microphthalma sp. nov. Manee and Jantarit, 2025 Remarks. Coecobrya microphthalma sp. nov. belongs to the boneti-group characterized by the presence of eyes. The new species has 1+1 small eyes like six other species of the same group (C. boneti (Denis, 1948), C. sanmingensis Xu and Zhang, 2015, C. indonesiensis (Chen and Deharveng, 1997), C. tukmeas Zhang, Deharveng and Chen, 2009, C. oculata Zhang, Bedos and Deharveng, 2016 and C. chompon). Among Thai cave species, Coecobrya microphthalma sp. nov. is most similar to C. chompon in having relatively long antennae, labial chaetae as mrel1l2, presence of long smooth straight chaetae on antennae, 3 medio-medial mac on Th. II, 3 central mac on Abd. II, 1 central mac and ... Etymology. Coecobrya microphthalma sp. nov. is derived from the Latin meaning “having small eyes”. Nongnapat Manee, Louis Deharveng, Cyrille A. D’Haese, Areeruk Nilsai, Satoshi Shimano and Sopark Jantarit. 2025. The Thermal Tolerance of Springtails in a Tropical Cave, with the Description of a New Coecobrya Species (Collembola: Entomobryidae) from Thailand. Insects. 16(1), 80. DOI: doi.org/10.3390/insects16010080 (This article belongs to the Section Other Arthropods and General Topics) Simple Summary: A new species of Collembola, Coecobrya microphthalma sp. nov., is described from a cave in Saraburi province, central Thailand. This species is the second boneti-group member found in the country. It closely resembles C. chompon Nilsai, Lima & Jantarit, 2022 but differs in having orange body dots and distinct morphological traits, such as the number of sublobal hairs and mac on various body segments. A comparison of all boneti-group species globally and a key to their identification are provided. Coecobrya microphthalma sp. nov. was cultured in the laboratory, and its thermal tolerance was tested at seven different temperatures (27 °C as control, 30, 32, 33, 34, 35, and 36 °C). The results showed that it cannot survive above 32 °C after 7 and 14 days of exposure. At 27, 30, and 32 °C, the species remained alive and produced eggs, though egg-laying duration and number of days decreased with higher temperatures. At 32 °C, the F1 generation survived and molted to adulthood, but no further offspring were produced. Development from egg to adult required six molts, with development rates increasing with higher temperatures. This study is the first attempt to examine how temperature affects the population dynamics, reproductive capacity, and life history of a subterranean tropical Collembola. | ||||||
| 2:25p | [Entomology • 2024] Doliops comvalensis • A New Species of Doliops Waterhouse, 1841 (Coleoptera: Cerambycidae: Apomecynini) from Davao de Oro with notes on other endemic species and mimicry complex in greater Mindanao Philippines
Doliops comvalensis Medina, sp. n. is described from Candalaga Range in Maragusan, Davao de Oro, Mindanao, Philippines. High-definition images of other known species of Doliops which are considered as the close congeners of the new species are also provided. The mimicry complex between the new species and the members of the tribe Pachyrhynchini known from Candalaga Range is discussed. Key words: long-horned beetles, Lamiinae, Apomecynini, Pachyrhynchini, taxonomy, new species, mimicry, Mindanao, Oriental Region.
Doliops comvalensis Medina, sp. n. DIFFERENTIAL DIAGNOSIS. The new species is similar to its Mindanao endemic congeners, Doliops cuellari Vives, 2012, D. edithae Vives 2009, and D. halconensis Vives, 2012 (Fig. 2), in the size and elytral maculation. However, the new species can be easily distinguished from these species in its unique maculation in pronotum. Pronotal maculation is similar to D. cuellari except that it does not have a thin band of whitish pubescence at the pronotal disc. Elytral maculation is similar to one of variations of D. halconensis but can be easily distinguished based on pronotal differences. HABITAT. New species was found in the forest near the road and soil erosion (Fig. 3). The host plant is fallen Shorea contorta. DISTRIBUTION. Philippines: Mindanao (Davao de Oro: Mt. Candalaga, Maragusan, Davao de Oro). ETYMOLOGY. The new species is named after Compostela Valley, the former name of the province of Davao de Oro. Medina M.N., Agbas D., Grayden Obrial G., Analyn Cabras A. 2024. Description of A New Species of Doliops Waterhouse, 1841 (Coleoptera: Cerambycidae: Apomecynini) from Davao de Oro with notes on other endemic species and mimicry complex in greater Mindanao Philippines. Far Eastern Entomologist. 507: 15-24. DOI: doi.org/10.25221/fee.507.3  |
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