First record of Phyllobius cylindricollis Gyllenhal, 1834 (Coleoptera, Curculionidae) from Altaiskii Krai, Western Siberia (Russia)

The first record of Phyllobius cylindricollis Gyllenhal, 1834 (Curculionidae: Entiminae: Phyllobiini) from Altaiskii Krai, Western Siberia is given. They are the most eastern finds of this species. The illustrations, redescription and distribution map of Ph. cylindricollis are presented.

A new species of the genus Eremochorus Zaslavskij, 1962 (Coleoptera: Curculionidae) from South-eastern Altai (Russia)

A new species, Eremochorus (Eremochorus) kuraicus Legalov, sp. nov. from Kosh-Agach District, South-eastern Russian Altai of Western Siberia is described and illustrated. This species is similar to E. mikhailovi Legalov, 2007 from Central Altai but differs from it in the longer rostrum with distinct middle carina, longer elytra and the aedeagus. A distribution map for E. kuraicus Legalov, sp. nov. and E. mikhailovi is given.

Six new species of Tonsilla Wang & Yin, 1992 (Araneae: Agelenidae) from southern China, with the first description of the male of T. yanlingensis (Zhang, Yin & Kim, 2000)

Six new species of the spider genus Tonsilla Wang & Yin, 1992 are described from southern China: T. jinyunensis sp. nov. (♂♀) from Chongqing, T. jiugongensis sp. nov. (♂♀) from Hubei, T. subtruculenta sp. nov. (♂♀), T. rutunda sp. nov. (♂♀) and T. yueliangensis sp. nov. (♂) from Guizhou and T. subrostrum sp. nov. (♂♀) from Hunan. In addition, T. yanlingensis (Zhang, Yin & Kim, 2000) is redescribed and its male is described here for the first time. Tonsilla subyanlingensis Liu & Xu, 2020 is transferred to Draconarius Ovtchinnikov, 1999, hence the new combination Draconarius subyanlingensis (Liu & Xu, 2020) comb. nov. is established. The female of T. subyanlingensis Liu & Xu, 2020 should be treated as T. yanlingensis (Zhang, Yin & Kim, 2000). Detailed descriptions, photographs of copulatory organs and somatic features, a distribution map and comparisons with closely related species are presented.

The rediscovery of Carya poilanei (Juglandaceae) after 63 years reveals a new record from China

Despite having been first published in 1941, Carya poilanei (A.Chev.) J.-F.Leroy is only known from three collections in Vietnam, Laos and Thailand. It has not been recollected since then and was long suspected to have become extinct through repeated deforestation events. Here, we report the rediscovery, and meanwhile the first new record in China, of this extremely rare gigantic hickory species at Yunnan province 63 years after its last collection in 1958. Three small patchy subpopulations were found with a total of about 50 adult trees having diameter at breast height (DBH) larger than 60 cm, together with some seedlings and saplings, but the fruit set was low. Based on new and fresh material, we present a revised morphological description of C. poilanei, and an updated distribution map for the species. In addition, we also provide a key for the hickories in China. Lastly, we suggest C. poilanei should be listed as a Critically Endangered (CR) species according to the latest IUCN Red List Categories and Criteria.

A new species of “rooster coomb”, Euploca decorticans (Heliotropiaceae), from the highlands of the state of Goiás, Brazil

Euploca decorticans, is here described and illustrated as a new species from a heretofore poorly collected mountain area in Goiás state, Brazil. It is most morphologically similar to E. salicoides, one of the most widely distributed taxa of the genus in Brazil but differs from that species in several features related to habit (height and growth aspect), leaves (shape, trichome types, and venation pattern), flowers (size, corolla shape, length, color), inflorescence (length), fruits (diameter and trichome types) and nutlets (shapes), among other features. We include a distribution map besides photos and drawings of the new species, and we also discuss its conservation status.

Study on dry friction vibration model based on energy method

Purpose This study aims to establish the friction vibration model. Design/methodology/approach The friction vibration experiment was carried out on a pin disk friction tester. The causes of friction vibration are discussed, and the friction vibration model is established based on the energy method. Findings The experimental and simulation results show that the main cause of friction vibration is the nonlinear change of friction coefficient; degree of the friction vibration has a positive relationship with the friction relative velocity and normal contact positive pressure; the proposed friction vibration model is highly consistent in chaotic attractor and time-frequency distribution map and can well predict friction vibration. Originality/value The proposed friction vibration model is highly consistent in chaotic attractor and time-frequency distribution map and can well predict friction vibration.

Distribution of the alpine newt Ichthyosaura alpestris in Great Britain updated using social media

The alpine newt (Ichthyosaura alpestris) is an alien species in Great Britain. Using location information derived from photographs posted on social media we have updated its known distribution, validated previously unconfirmed populations, and present an updated distribution map. Comparison of the records collected from social media with those in the National Biodiversity Network Atlas indicates eleven new confirmed populations, although three of these had previously been shown as unconfirmed records in the NBN Atlas. The new records have been deposited with NBN.

Analysis of the iodine distribution map in patients with diagnosis of pulmonary embolism: Initial results

Objectives: Analysing the iodine map distribution in patients with pulmonary embolism diagnosis by Dual Energy Computed Tomography. Materials and methods: Twenty-four images of pulmonary angiotomography by dual energy computed tomography were used to determinate the presence of pulmonary thrombi and identify the perfusion defects (PDs) in the Iodine Maps. Moreover, the iodine density (mg/ml) were measured in normal lung parenchyma and lung parenchyma with PDs areas. The documentary analysis was used thought the data collection sheet and the Likert scale questionnaire. The statistic software SPSS v.25 was used. Results: Thirty-four thrombi were found (21 occlusive and 13 partials occlusive) at monochromatic images. Forty-one perfusion defects (PD) were found at Iodine Maps, these have multiple origins: pulmonary thrombi (69.23%), artifacts (17.95%) and other alterations (12.82%). Furthermore, two new thrombi (5.56%) were identified, both were occlusive and segmental level. Mean Iodine density showed statistically significant differences among normal lung parenchyma (1.65 ± 0.66 mg/ml; [0.77-2.79 mg/ ml]) and parenchyma with PD areas (0.51 ± 0.26 mg/ml; [0.12-1.02 mg/ml])(p=0.000). Mean iodine density also had statistically significant differences between parenchyma with occlusive PD and partial occlusive PD (p=0.000). Iodine Map diagnostic quality was excellent (54.17%), good (33.33%), moderate (12.50%). Conclusion: The Iodine distribution Map offers a benefit greater than 5% in the diagnosis of pulmonary embolism by Dual-Energy Computed Tomography.