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The genera of the tribe Brontini (Silvanidae: Brontinae) are reviewed. The tribe is considered here to be composed of 12 genera, Uleiota Latreille, Brontopriscus Sharp, and Dendrophagus Schönherr, plus nine new genera: Australodendrophagus, Australohyliota, Brontoliota, Dendrophagella, Macrohyliota, Megahyliota, Microhyliota, Parahyliota, and Proto...
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Continua il nostro viaggio nel mondo infinitamente piccolo dell’ape. Andiamo alla scoperta,
grazie agli occhi di un Autore - sì attento, ma specialista in Entomologia apistica - di minuscoli
dettagli, forme affascinanti, soluzioni efficaci ed efficienti che dimostrano quanto sia complesso
e imponente il percorso evolutivo di questa specie animale....
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Citations
... Silvanidae shares with Isocryptophilus the unprojected genae, abruptly constricted neck, concealed protrochantins, and laterally open mesocoxal cavities. The tribe Brontini of Silvanidae also has externally broadly open procoxal cavities (Thomas, 2003). However, Silvanidae differs from Isocryptophilus in eyes with interfacetal setae, scutellar shield abruptly elevated, elytra with striate punctation, and epipleura usually broad and complete. ...
The morphology of beetles of the recently defined superfamilies Erotyloidea, Nitiduloidea and Cucujoidea is varied. Determining the systematic positions of Mesozoic fossils within these groups can often be challenging. Here we describe and illustrate a puzzling cucujiform beetle, Isocryptophilus exilipunctus Li & Cai gen. & sp. nov., based on an individual from mid-Cretaceous Burmese amber. While we cannot definitively pinpoint the exact phylogenetic position of Isocryptophilus, its possible affinity to Erotylidae is discussed in light of our phylogenetic analyses. A broader-sampled morphological matrix, coupled with a robust molecular phylogeny of these groups, will be promising for clarifying the systematic placement of the fossil.
... While many alpine beetles have evolved from previously wingless ancestors, others have lost or reduced their wings, including Tarphiomimus (Zopheridae, RABL, pers. obs.), the Chalcolampra speculifera group (Chrysomelidae, Wardhaugh and Leschen 2021), and Protodendrophagus (Silvanidae, Thomas 2003). ...
New Zealand alpine environments host a diverse assemblage of insect lineages, with virtually every major insect group represented. The modern mountain ranges of New Zealand are relatively young and large areas of habitat above the tree line have only been in continual existence for the past one million years. We discuss the geological history and physical characteristics of New Zealand alpine environments and the resulting selective pressures placed on insect species. Some notable alpine taxa and previous faunistic research is highlighted. We discuss examples where single lineages have colonised the alpine zone and contrast these with larger radiations of alpine species which in some cases are the result of multiple colonisation events. The age of most alpine lineages is consistent with the young geological age of the mountains, nevertheless there are some much older alpine lineages of uncertain evolutionary history. We show that alpine species have employed a very broad range of morphological, physiological, and behavioural adaptations to survive in the alpine zone, and new studies are starting to unpick their genomic basis. Finally, we look to the future and assess threats to the unique New Zealand alpine insect fauna.
... Thomas (1984) further recognised the tribe Brontini (= Uleiotini) with externally open procoxal cavities and tribe Telephanini with procoxal cavities externally closed within the subfamily Brontinae. Brontini consists of 13 genera from all the continents (Thomas, 2003(Thomas, , 2011, which can usually be found under bark of dead trees. Both adults and larvae of Brontini appear to be fungivorous (Thomas, 2003;Yoshida & Hirowatari, 2016), while Protodendrophagus antipodes Thomas, from New Zealand, was found to feed on lichens (Marris et al., 2019). ...
... Brontini consists of 13 genera from all the continents (Thomas, 2003(Thomas, , 2011, which can usually be found under bark of dead trees. Both adults and larvae of Brontini appear to be fungivorous (Thomas, 2003;Yoshida & Hirowatari, 2016), while Protodendrophagus antipodes Thomas, from New Zealand, was found to feed on lichens (Marris et al., 2019). ...
The mature larva and pupa of the Australian silvanid species, Macrohyliota militaris (Erichson) are described from laboratory reared material. This is the first description of immature stages of Silvanidae from Australia. The larva of M. militaris conforms to the general body shape and apparent morphological features of known Brontini and is very similar to the Asian M. sculptus Yoshida & Hirowatari. Larval and pupal features of M. militaris are compared with other known larvae and pupae of Brontini described in the literature.
... Excepting P. antipodes, the larvae of the Brontini consume fungi found underneath loose bark (Thomas 2003). Since P. antipodes lives well above the tree line, a tree-based fungal diet is clearly impossible. ...
The flightless endemic New Zealand beetle, Protodendrophagus antipodes Thomas, 2003 (Coleoptera: Silvanidae: Brontinae: Brontini) (Fig. 1a, b), is unique among its tribe of 12 globally‐distributed genera in exchanging the forest for an alpine existence. Until recently, P. antipodes was thought to be rare, known only from a handful of specimens from above the treeline in mountains in the northern part of New Zealand's South Island. Following the discovery of the beetle's favoured habitat of alpine rock outcrop crevices (Fig. 1c), they have been found by JM at 19 of 24 localities examined, along much of the 700 km length of the South Island mountains and from 1500 m to over 2000 m elevation. This article is protected by copyright. All rights reserved.
... The subfamilies of Silvanidae and the composition of subfamily Silvaninae are well established, however, the tribal classification within the Brontinae remains unclear. The rather sharp original morphological gap between relatively large, flat and sparsely setose Brontini (Thomas, 2004), and the smaller, convex Telephanini with possessing lobed tarsomeres has been gradually obliterated by discoveries in the following years, especially by a new Australian genus Notophanus Thomas, 2011, which externally resembles the members of Telephanini but has externally opened procoxal cavities (Thomas and Nearns, 2008). According to a preliminary phylogeny of Silvanidae the Silvaninae and Brontinae are monophyletic but Brontini is paraphyletic with Telephanini derived within this clade (Thomas and Nearns, 2008). ...
... The placement of Cretoliota and Protoliota in Brontini is firmly established based on their overall body form, long filiform antennae with long scape and without club, 5-5-5 tarsi and narrowly open procoxal cavities. The distinct mandibular horns further suggest a close relationship with Uleiota (Fig. 4a-c), which is the only extant genus with strongly prominent mandibular horns (Thomas, 2004). However, species of the extant Uleiota are much bigger than those two fossil taxa, have the mandibular horns strongly arcuate, the antennal scape distinctly clavate, and the simple tarsi with the tarsomeres 1 and 2 fused (Fig. 4d). ...
... Distinctly lobed tarsomeres found in both Cretaceous genera are unknown in the extant Brontini (Thomas, 2004). Most genera of Brontini, including the Eocene Dendrobrontes Kirejtshuk, 2011, have simple tarsi with elongate tarsomere 2 (Fig. 4e). ...
The first Cretaceous taxa of Brontini, Cretoliota cornutus gen. et sp. nov. and Protoliota antennatus gen. et sp. nov. are described from the Burmese amber, representing the oldest fossil records of the family Silvanidae. Pleuroceratos burmiticus Poinar and Kirejtshuk, 2008 originally placed in Silvanidae is removed from this family to Cucujoidea, family uncertain. The discovery of a diverse fauna of Brontini in the Upper Cretaceous sheds a new light on the early evolution of Silvanidae and superfamily Cucujoidea.
... Thomas and Leschen (2010) stated that there are 58 genera in Silvanidae, but they may not have included Australophanus Thomas, 2008 described in Thomas and Nearns (2008). In the Brontinae, 12 new genera have been described since the beginning of the 21 st Century, and the subfamily contains 23 genera (Thomas 2004(Thomas , 2011Thomas and Nearns 2008;Karner et al. 2015). Thomas and Nearns (2008) provided diagnostic character states of the brontine tribe Telephanini LeConte, 1861 and a key to the genera of this tribe. ...
A new silvanid genus Borneophanusgen. n. is described based on specimens collected from Malaysian Borneo. A new species, B.spinosussp. n. , is described herein. Digitiform sensilla on the apical maxillary palpomere is reported in Silvanidae for the first time.
... The genus Parahyliota Thomas, 2004 belong to the family Silvanidae, subfamily Brontinae and tribe Brontini (Thomas 2004, 2009, McElrath et al. 2015) and recently contains 14 Asian, African and Mexican species (Thomas 2004(Thomas , 2009, previously assigned to Uleiota Latreille. ...
... Parahyliota can be distinguished from other genera in the subfamily Brontinae, tribe Brontini, by absence of a scutellary striole, tarsal structure, modified male frons and reduced parameres (Thomas 2004). ...
The species Parahyliota barsevskisi sp. nov. from the Philippines (Luzon) is described and
compared with similar species. List of known Parahyliota Thomas, 2004 is provided.
... Twelve new genera of Brontinae have been described in recent years (Thomas 2004(Thomas , 2011Thomas & Nearns 2008;Karner et al. 2015). In the Silvaninae, after comprehensive studies of Halstead (1973Halstead ( , 1980, two new genera were added by Halstead (1997). ...
A new silvanid genus Dentirotacorimus gen. nov. is described based on specimens collected from Ulu Gombak (Malay Peninsula), Malaysia. Two new species, D. reticulatus sp. nov. and D. zigzag sp. nov., are described herein. A key to species of this genus and a table listing states of diagnostic characters of Corimus-like genera, including this new genus, are provided.
... The genus Macrohyliota Thomas, 2003 belongs to the family Silvanidae, subfamily Brontinae and tribe Brontini (Thomas 2001, 2004, McElrath et al. 2015 and actually contains 7 species (Thomas 2004, Yoshida & Hirowatari 2016. ...
... The genus Macrohyliota Thomas, 2003 belongs to the family Silvanidae, subfamily Brontinae and tribe Brontini (Thomas 2001, 2004, McElrath et al. 2015 and actually contains 7 species (Thomas 2004, Yoshida & Hirowatari 2016. ...
... The genus Macrohyliota Thomas, 2003 belongs to the family Silvanidae, subfamily Brontinae and tribe Brontini (Thomas 2001, 2004, McElrath et al. 2015 and actually contains 7 species (Thomas 2004, Yoshida & Hirowatari 2016. ...
The species Macrohyliota philippinensis sp. nov. (Coleoptera: Silvanidae: Brontinae) from the Philippines (Luzon, Mindanao) is described, illustrated and compared with similar species. A list of the species within the genus Macrohyliota Thomas, 2003 is provided.
... Dendrophagus Schönherr, 1809 es un género propio de la región holártica, representado por tres especies (Thomas, 2003). Su especie tipo, Dendrophagus crenatus (Paykull, 1799), cuenta con una amplia distribución paleártica, desde Europa meridional hasta el extremo oriental de Rusia (Halstead et al., 2007). ...
... Dendrophagus crenatus muestra claramente las características que definen al género (Thomas, 2003): cuerpo alargado, de- primido, de tegumentos brillantes (longitud total entre 6 y 7,8 mm), superficie casi glabra, con puntuación densa y bien marcada (figura 1). Cabeza surcada por dos impresiones pro- fundas; antenas filiformes, con el escapo alargado y en forma de maza. ...
