Prague, Czech Republic
Prague, Czech Republic

Time filter

Source Type

Skuhrovec J.,Czech Republic Crop Research Institute | Batelka J.,Nad Vodovodem 16
Acta Entomologica Musei Nationalis Pragae | Year: 2014

An extensive material of the Cape Verde endemic weevil genus Dinas Wollaston, 1867 (Curculionidae: Entiminae) is revised. Two subgenera are recognized based on the external morphology and biology of adults. Microspina subgen. nov. is established for the group with smaller-sized adults which are flower-eaters adapted to habitats with Macaronesian endemic flora; 10 species are transferred to the subgenus: D. (M.) angusticeps Roudier, 1957, D. (M.) angustula Wollaston, 1867, D. (M.) elliptipennis Wollaston, 1867, D. (M.) heckeli Geisthardt, 1995, D. (M.) micans Roudier, 1957, D. (M.) obsita Wollaston, 1867, D. (M.) pallipes Roudier, 1957, D. (M.) punctipennis Roudier, 1957, D. (M.) sitonaeformis Wollaston, 1867, and D. (M.) viridisquamea Roudier, 1957. Contrary, adults of Dinas s. str. were found on the ground and under stones only. The Dinas fauna of São Nicolau Island is studied in detail. Dinas (Microspina) afonsoi sp. nov. and D. (Dinas) strakai sp. nov. are described from the eastern part of the island. The types and new material of the remaining two species from the western part of the island, D. (Microspina) angusticeps and D. (Microspina) sitonaeformis, are reviewed, and lectotype for the latter is designated. An identification key to all species known from São Nicolau is provided. The origin of Dinas and its biogeographic affinities are discussed. Distributional pattern of the genus within the archipelago, particularly in São Nicolau are commented. An updated list of all known Dinas species is provided.


Straka J.,Charles University | Rezkova K.,Charles University | Batelka J.,Nad Vodovodem 16 | Kratochvil L.,Charles University
Ethology Ecology and Evolution | Year: 2011

Stylopised (= parasitised by Strepsiptera Stylopidae) imagoes of Andrena (Hymenoptera Andrenidae) bees are known to exhibit intersexual morphology. Until now, their abnormal morphology has been thought to result from undernourishment of parasitised larvae during development. This hypothesis, however, dos not fit to mass provisioning Hymenoptera. We hypothesised that induced changes in the suite of morphological characters might be a consequence of manipulation of sex-specific behavioural traits by a strepsipteran parasite. Thus, the masculinised morphology of stylopised females might be connected with shifts in their sexual behaviour. Here, we tested the effect of Stylops (Strepsiptera Stylopidae) infection on the timing of spring nest emergence in Andrena bees, where males generally emerged conspicuously earlier than conspecific females. We used two independent data samplings - pan trapping and direct observation - to avoid possible bias caused by one of the methods. In accordance with our hypothesis, we documented that the time of emergence/activity in stylopised females follows the temporal trend of uninfected, protandrous males. We ascribe this observation to host manipulation and briefly discuss the potential adaptive value of the altered host behaviour for the parasite. We discuss our results across three species: Andrena strohmella, A. minutula and A. vaga. © 2011 Dipartimento di Biologia Evoluzionistica dell'Università, Firenze, Italia.


Ripiphorus caboverdianus sp. nov. (Ripiphoridae, Ripiphorinae) from Boavista Island (Cape Verde archipelago) represents the first record of the family Ripiphoridae from the volcanic islands west of Africa and the first record of the genus Ripiphorus on an isolated volcanic archipelago worldwide. Its significance for our understanding of oceanic dispersal abilities of the subfamily Ripiphorinae is discussed. The new species is characterized by milky white elytra, hyaline hind wings and translucent membranous suture between dorsal and ventral surface of the first abdominal segments in both sexes. Female has a slightly curved hind tibia, 2× wider at the apex than at its base, and a slender, parallel-sided first metatarsomere, 5× as long as wide. Morphology of the free-living first instar larva is described; it is very similar to R. smithi Linsley & MacSwain, 1950. Behavioral observations of the adults and the first instar larvae in the type locality are given. Known hosts of the genus Ripiphorus are reviewed; possible host-association and conservation implications for the new species are discussed. Copyright © 2011 · Magnolia Press.


Batelka J.,Nad Vodovodem 16 | Prokop J.,Charles University | Engel M.S.,American Museum of Natural History | Engel M.S.,University of Kansas
Cretaceous Research | Year: 2016

New fossil material of ripiphorid beetles (Tenebrionoidea: Ripiphoridae) is described and figured in lowermost Cenomanian amber from the Hukawng Valley of northern Myanmar. Flabellotoma heidiae gen. et sp. nov. is the Mesozoic representative of the putatively primitive subfamily Pelecotominae, represented by an almost completely preserved male. The new genus is compared with all extant members of the subfamily and is most notably distinguishable by an autapomorphic combination of a reduced tibial spur formula and unique ventral abdominal sclerite, and presumably in antennal structure as well. In addition, a syninclusion of eight males of Ripidiinae is discussed. The males are similar to Paleoripiphorus deploegi Perrichot, Nel, et Néraudeau in roughly coeval amber from western France. The syninclusion is interpreted as a result of aggregative behaviour during the flight activity of males, thereby representing the earliest documented evidence of such ethology. Brief remarks are made regarding the similarities among Cretaceous amber beetle faunas, and Mesozoic taxa previously attributed to Ripiphoridae are newly reconsidered. © 2016 Elsevier Ltd


Batelka J.,Nad vodovodem 16 | Engel M.S.,University of Kansas | Falin Z.H.,University of Kansas | Prokop J.,Charles University
European Journal of Entomology | Year: 2011

Ten amber inclusions of male Ripidiinae (Coleoptera: Ripiphoridae) are reported from Early Miocene deposits of the Dominican Republic and compared with extant species of Neorrhipidius Viana, 1958 from Argentina and Paraguay and Quasipirhidius Zaragoza Caballero, 1991 from Mexico. Neorrhipidius seicherti sp. n. and Quasipirhidius luzziae sp. n. are described and illustrated. Both species are characterised by 11-segmented antennae with eight distal antennomeres uniflabellate, mouthparts reduced to maxillary palpi represented by long styli with fused basal palpomeres, by metathoracic wings without crossveins and tarsal formula of 5-5-4. Neorrhipidius seicherti sp. n. differs from Quasipirhidius luzziae sp. n. by the presence of postocular ommatidia and by the shape of metascutellum. The distribution of fossil and extant Ripidiinae in Central America is briefly discussed. Furthermore, the frequent occurrence of Quasipirhidius luzziae sp. n. in amber as syninclusions suggests possibly unique synchronisation of emergence unknown in extant taxa or more likely intraspecific aggregative behaviour by males prior to mating with receptive females.


Batelka J.,Nad Vodovodem 16
Annales de la Societe Entomologique de France | Year: 2011

A new genus and species, Olemehlia krali n. g. & n. sp. (Coleoptera: Ripiphoridae: Ripidiinae), is described from Baltic amber. The newly described genus is compared with all known fossil and extant closely related genera of the subfamily Ripidiinae. It is characterised by the following combination of characters: antennae consisting of 10 antennomeres, with scape, pedicel, and antennomere 3 simple and antennomeres 4-10 uniflabellate, mouthparts reduced to a small single unpaired tubercle, postocular ommatidia absent, pronotum trapezoid without grooves or impressions, elytra without white apical spots, tarsal formula 5-5-4, hind tarsomere I shorter than three remaining combined. Diversity of Ripiphoridae in Baltic amber is discussed; key to Ripidiinae genera from Baltic amber is provided.


Batelka J.,Nad Vodovodem 16
Acta Entomologica Musei Nationalis Pragae | Year: 2010

Distribution of the Ripiphoridae (Coleoptera: Tenebrionoidea) in the Arabian Peninsula is evaluated. Six species belonging to the genera Macrosiagon Hentz, 1830 and Ripiphorus Bosc, 1791 are figured and keyed, and the distribution of each species is mapped. Including new and previously published records, the Ripiphoridae are now reported from 19 localities of the Arabian Peninsula and offshore islands. Coordinates for each exact locality are given.


Ptilophorus purcharti sp. nov. (Coleoptera: Ripiphoridae) from Socotra Island, Yemen, is described and figured. It is compared with all known Afrotropical and Palaearctic species of the genus and is considered to be a relictual species with Asian relatives. The distribution of the species seems to be restricted to the Afromontane forest habitats in Al Hagher mountain range. A preliminary phylogenetic analysis of Ptilophorini is performed and discussed. The density and length of setation on the antennal rami of Ptilophorini males are shown to be characters of potential phylogenetic importance which may help to understand the biogeography of the tribe. A preliminary hypothesis of Ptilophorini biogeography is proposed.


Batelka J.,Nad Vodovodem 16
Acta Entomologica Musei Nationalis Pragae | Year: 2012

Nature conditions in the Socotra Archipelago are briefly summarised, main factors contributing to the composition and diversity of the insect fauna, i.e. geological history, geographic position, geomorphology, climatic conditions and plant diversity, are circumscribed. Results of the Socotran invertebrate biodiversity research are reviewed, the first annotated list of 40 insect genera and subgenera endemic to the Socotra Archipelago is provided. Recorded high level of endemism in the Socotra Island is in accordance with the estimated geological age and continuous stability of its ecosystem. Brief comparison of biodiversity in Socotra and Seychelles Islands - both granitic archipelagos of Gondwanan origin in the West Indian Ocean - is performed. Difference in composition of insect fauna in Socotra and allied Abd el Kuri Island is commented. Main threats and conservation issues concerning the fragile Socotran ecosystem are summarised, and examples of possible consequences for insect fauna are given. Based on comparison of scarce outputs and research activities concerning the Socotran insect fauna so far with the number of those elaborated for other countries/islands, establishing of a long-term insect survey is recommended.


Taxonomy and distribution of the genus Pterydrias Reitter, 1895 (Coleoptera: Ripiphoridae: Ripidiinae) are revised. Based on examination of the type material, the genus Pterydrias is confirmed as a senior synonym of the genus Eorhipidius Iablokoff-Khnzorian, 1986. Pterydrias debilis Reitter, 1895 is redescribed and illustrated, and its type locality is corrected to Haifa, Israel. The following new combinations are established: Pterydrias januschevi (Iablokoff-Khnzorian, 1986) comb. nov., P. jelineki (Batelka & Hajek, 2009) comb. nov., P. loebli (Batelka & Hajek, 2009) comb. nov., and P. ruzickai (Batelka & Hajek, 2009) comb. nov. (all from Eorhipidius). An identification key to all species is provided and their distributions are mapped. Copyright © 2010.

Loading Nad vodovodem 16 collaborators
Loading Nad vodovodem 16 collaborators