Microhabitat preference of sympatric Hydraena Kugelann, 1794 species (Coleoptera: Hydraenidae) in a low-order forest stream

Aim of this study was to investigate the presence and distribution of Hydraenidae in relation to selected abiotic parameters in a single, uniform riffle of the Caramagna Stream (northwestern Italy). Six species belonging to the genus of Hydraena Kugelann, 1794 were found (H. andreinii D'Orchymont, 1934, H. subimpressa Rey, 1885, H. assimilis Rey, 1885, H. heterogyna Bedel, 1898, H. truncata Rey, 1884 and H. devillei Ganglbauer, 1901), with evident niche preferences. Our study provided interesting information about ecological requirements of minute moss beetles at small-scale and evidenced that maintaining elevate habitat diversity is essential to preserve high species abundance at local scale.     

New species of Cerambycidae (Coleoptera) from South and Central America

Three new species are described: Tropidion birai (Cerambycinae, Neoibidionini) from Bolivia; Chrysoprasis birai (Cerambycinae, Heteropsini) from Panama; and Recchia nearnsi (Lamiinae, Aerenicini) from Bolivia. The new species are included in amended versions of previously published keys to species of each genus.     

A New Species of the Genus Adela (Lepidoptera: Adelidae) from South America

Adela boliviella n. sp., described from central Bolivia, is the first representative of the subfamily Adelinae found in South America. This species is closely related to Adela astrella Walsingham, from which it differs by larger compound eyes in males (interocular index, i.e. the ratio of vertical eye diameter to interocular distance, equals 1.5 compared to 0.75 in A. astrella), smaller extent of pale yellow scales in the forewing (0.25× forewing length compared to 0.40 in A. astrella), absence of a silver band outside the fascia and presence of three glossy silver spots near the apex of the forewing (six in A. astrella).     

Limnebius alibeii sp. n. (Coleoptera: Hydraenidae) from Morocco

Limnebius alibeii sp. n. is described from the Moroccan Atlas. The new species is closely related to L. fretalis Peyerimhoff, from which can be separated for its slightly smaller size and the structure of the aedeagus.     

Hydraena (Hydraenopsis) ateneo,new species (Coleoptera,Hydraenidae) and other aquatic Polyphaga from a small habitat patch in a highly urbanized landscape of Metro Manila,Philippines

Seven species of Hydraenidae, Hydrophilidae and Elmidae are recorded from temporary freshwater habitats at the Ateneo de Manila University Campus in the metropolitan area of Manila, Philippines. They were identified as Enochrus (Lumetus) fragiloides d’Orchymont, Helochares (Hydrobaticus) lepidus d’Orchymont, Helochares (Helochares) pallens (MacLeay), Hydraena (Hydraenopsis) scabra d’Orchymont, Hydraena (Hydraenopsis) palawanensis Freitag & Jäch (new record for Luzon Island), Stenelmis sp. A further hydraenid species was unknown to science and is newly described: Hydraena (Hydraenopsis) ateneo Freitag, sp. n. Aedeagus, gonocoxite, spermatheca, and female tergite X are illustrated by computer-based line drawings. Habitus images of all three Hydraena Kugelann species recorded and a checklist of the Philippine Hydraena are provided. The presence of these seven species in the Ateneo campus is briefly discussed in regard to the area’s history. Measures to maintain and extend semi-natural islands of biodiversity in urban areas are suggested.     

A new species of Amblyodus Westwood, 1878 (Coleoptera, Melolonthidae, Dynastinae) from South America

A second species of Amblyodus Westwood, 1878, Amblyodus castroi sp. n., is described from the northern South America based on 12 specimens from Brazil and Peru (Amazonian subregion). The new species is here compared with the type species of the genus, Amblyodus taurus Westwood, 1878 and both species and their male genitalia are illustrated. Diagnostic characters for the genus are discussed, especially the metatibial teeth. A distribution map including the type species and the new species is provided. The genus Amblyodus is recorded for the first time from Peru and from Brazil states of Pará and Rondônia.     

Three new Stenus Species from South America (Coleoptera,Staphylinidae) 127th Contribution to the Knowledge of Steninae

Three new Stenus from South America are described: S. aeneomicans n.sp. from Argentinia, 5. atromicans n.sp. from Bolivia, and S. setosivestis from Costa Rica.     

Molecular phylogeny and diversification of the "Haenydra" lineage (Hydraenidae, genus Hydraena), a north-Mediterranean endemic-rich group of rheophilic Coleoptera

Hydraena is the largest genus within the water beetle family Hydraenidae, with ca. 1000 species distributed worldwide. Within this large genus some monophyletic groups of species are recognised, among them the "Haenydra" lineage, including ca. 90 species distributed in the western Palaearctic from the Iberian peninsula to Iran. Species of "Haenydra" have often very restricted distributions, and are typical of clean small rivers and streams. We obtained ca. 2.5Kb of mitochondrial and nuclear protein-code and ribosomal markers of 101 specimens of 69 species of "Haenydra", and used Bayesian and Maximum Likelihood phylogenetic methods to reconstruct their phylogeny and diversification history. We found a derived phylogenetic position of the "Haenydra" lineage within the genus Hydraena, as sister to the species of the Hydraenabisulcata group. Within "Haenydra" three main lineages were recognised, with poorly resolved relationships among them: the Hydraena iberica, Hydraena gracilis and Hydraena dentipes lineages, the former restricted to the Iberian peninsula but the latter two distributed through the whole north-Mediterranean area. A Bayesian relaxed molecular clock approach using a combined mitochondrial rate of 2% divergence per MY estimated the origin of "Haenydra" in the Tortonian, ca. 8Mya, and the main diversification and the origin of most extant species in the Pliocene and Pleistocene. We did not found evidence of a phylogenetic connection between the western and eastern species that could be traced to the Messinian salinity crisis, with dispersal only at small geographical scales (e.g. the colonisation of Corsica and Sardinia from NW Italy and SW France). The H. gracilis and H. iberica lineages were estimated to have diversified under a pure birth model with a speciation rate of 0.64 and 0.23 species/MY respectively, while the H. dentipes lineage was estimated to have a decreasing diversification rate with time, with an average rate of 0.29 sp/MY.     

Small Spruce Bark Beetle Ips amitinus (Eichhoff, 1872) (Coleoptera,Curculionidae: Scolytinae): a New Alien Species in West Siberia

The small spruce bark beetle Ips amitinus is a widespread species in many European countries that has been actively spreading into Northern Europe in the recent decades. In Russia, I. amitinus is present in the western, northwestern, and northern regions of the European part, with a tendency for range expansion. The species was first recognized in West Siberia in 2019 by characteristic morphological features and molecular genetic analysis. This bark beetle is abundant on Pinus sibirica in Siberian pine forests located near settlements within Tomsk and Kemerovo provinces, and is also sporadically found on the Siberian spruce Picea obovata. It colonizes the upper trunk and branches of standing and windfall trees. In the outbreak foci this bark beetle causes catastrophic drying of Siberian pines, starting from the crown top. This pattern of tree drying was noted for the first time near settlements in Yashkinsky District of Kemerovo Province in 2014, and now outbreak foci of I. amitinus exist in all the Siberian pine forests in this district. The population growth of I. amitinus was probably facilitated by dry and hot summer weather in the southeast of West Siberia during the last decade, in 2011 and 2012, and also by heavy winter snowfalls leaving numerous snapped tree branches which are easily colonized by the pest. In Tomsk Province, the most active outbreak focus of I. amitinus appeared in 2018 in the Siberian pine forest near Luchanovo and Ipatovo, following an outbreak of the Siberian moth Dendrolimus sibiricus. The invasion of I. amitinus in Siberia may increase the degradation rates not only of the gene-reserve Siberian pine forests but also of other dark coniferous stands.

     

Notobaetis: A New Genus of Baetidae (Ephemeroptera) from South America

A new genus and species, Notobaetis penai, n. gen., n. sp., of Baetidae (Ephemeroptera), is described based upon reared specimens collected from the Cordoba Province of Argentina. This new genus appears to be phenetically intermediate between Baetis Leach and Centroptilum Eaton while possessing a unique combination of characters and one autapomorphic character.     

Ultrastructure and Description of a New Species of Telomyxa (Microspora: Telomyxidae) from the Semiaquatic Beetle,Ora texana Champ. (Coleoptera: Helodidae)1

A new species of the uncommon microsporidian genus Telomyxa (Microspora: Telomyxidae) has been found parasitizing the larval fat body of the semiaquatic beetle, Ora texana. In this species, the sporogonic sequence results in the formation of sporocysts measuring 7.7 times 6.5 μm that contain two crested uninucleate spores (averaging 5.7 times 2.2 μm). The spores are essentially oblong/ovate, tapering toward the anterior end and remaining bound together after sporogony by a persistent accessory membrane or sporocyst. The two spores in the sporocyst are produced by an unusual morphogenetic sequence in which, after one mitosis, the binucleate sporont elongates, forming two lobes that fold toward one another and cleave along a central plane, forming two parallel sporoblasts. The general ultrastructural features of this process are described, and diagnostic characters of this new species of Telomyxa are presented.     

Cachiporrini, a remarkable new tribe of Lamprosomatinae (Coleoptera, Chrysomelidae) from South America

A new genus and species of Lamprosomatinae, Cachiporra extremaglobosa Chamorro & Konstantinov, is described from Brazil. A new tribe, Cachiporrini, is proposed. The first phylogenetic analysis of Lamprosomatinae based on adult morphological caharacters is conducted. Comparisons are made among lamprosomatine tribes and genera. A key to tribes is provided.     

A review of medical mycology in Colombia,South America

Summary A review of the mycotic cases diagnosed in Colombia is presented. The deep mycoses have been all observed, with the exception of North American Blastomycosis. The commonest entities are South American Blastomycosis, Sporotrichosis and Chromoblastomycosis.Among the superficial mycoses, tinea capitis and corporis were noticed most frequently.Microsporon canis was isolated in most instances. Some other superficial mycoses, as Pityriasis versicolor and Piedra were also observed.National references pertaining to the subject are included.

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Sumpaio Se presenta una revisión de los cases colombianos de Micosis. Todos los tipos de micosis profundas, con excepción de la Blastomicosis Norteamericana, han sido observados en nuestro territorio. Como entidades más frecuentes podemos anotar la Blastomicosis Suramericana, la Esporotricosis y la Cromoblastomicosis.Entre las micosis superficiales se anota una mayor incidencia de tinea capitis y corporis, siendo elMicrosporon canis el agente etiológico aislado más frecuentemente. Se reporta igualmente la incidencia de otras formas superficiales, tales como, la pitiriasis versicolor y la piedra del cabello.Se incluye la literatura nacional obtenida sobre el tema.

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Part of this work was presented as a thesis for the degree of Doctor in Medicine to the Faculty of Medicine, University of Antioquia by one of us (Sánchez-Arbelaéz J.) in 1957.     

Hydraenidae (Insecta: Coleoptera) of Mindoro,Philippines. I: Hydraena Kugelann, 1794 of the Baroc River basin,Roxas, Oriental Mindoro with description of three new species

The species of the genus Hydraena Kugelann, 1794 of the Baroc River basin in the Philippine Island of Mindoro are studied taxonomically. Five species of Hydraena (Hydraenopsis) are recorded of which three new species, namely H. hinundungan sp. n., H. quirao sp. n., and H. sanvicentensis sp. n., are described. Their genital characters are illustrated by line drawings. Photographs of their habitus and type localities, and a map of the collection sites are provided. Their habitat requirements are briefly discussed and their potential usefulness as bioindicators is deduced. The paper is based on a student thesis and intended as a first step towards the review of the entire hydraenid beetle fauna of Mindoro.

http://zoobank.org/urn:lsid:zoobank.org:pub:BDB0EABE-5A9A-46D0-83A2-81A3DA895BFD     

中国异胸天牛属一新记录种记述(鞘翅目:天牛科:锯天牛亚科)(英文)

记述了中国异胸天牛属1新记录种,即艾略特异胸天牛Anomophysis ellioti(Waterhouse,1884),标本采自云南省玉溪市。检视标本保存于长江大学农学院昆虫标本室。