68 research outputs found
New genus and two new species of the Lower Cretaceous Digger Wasp from Spain (Hymenoptera: Sphecidae: Angarosphecinae)
One new genus and two new species, Ilerdosphex wenzae RASNITSYN n.gen. and n.sp. and Pompilopterus montsecensis RASNITSYN n.sp., are described in the digger wasp subfamily Angarosphecinae (Sphecidae) from the Lower Cretaceous (possibly Barremian) lithographic limestones of the La Pedrera de Meià fossil site in the Montsec Range, NE Spain
Cretobestiola, a replacement name for Bestiola Pulawski and Rasnitsyn, 1999 (Hymenoptera: Sphecidae)
Identity of Prosepididontus calpterys Handlirsch 1920 (Insecta: Grylloblattida: Geinitziidae)
Prosepididontus calopteryx HANDLIRSCH 1920, from the upper Lower Jurassic of Germ a ny, is transferred from Trichoptera to Grylloblattida: Geinitziidae. The anal loop like structure of Prosepididontus calopteryx is built of the concave CuP and two anal veins. Prosepididontidae HANDLIRSCH, 1920 is synonymised under Geinitziidae HANDLIRSCH, 1906
Two new Lower Cretaceous hymenopterous insects (Insecta: Hymenoptera) from Sierra del Montsec, Spain
Two new hymenoterans are described from the Lower Barremian lithographic limestones of Sierra del Montsec (Lleida, Spain), Leridatoma pulcherrimapulcherima n.gen., n.sp. (Xyelotomidae RASNITSYN, 1968) that combines the most and the least advanced character states in the family (in structure of antenna and fore wing RS, respectively), and Cretephialtites pedrerae n.gen., n.sp. (Ephialtitidae HANDLIRSCH, 1906)
Wasps (Insecta: Vespida = Hymenoptera) from the Early Cretaceous of Spain
Wasps and their relatives from the Lower Cretaceous lithographic limestones of Spain have been studied. Thirty specimens representing 30 species (4 of them with undetermined placement), at least 21 genera and 11 families are recorded. We erect 1 new family - Andrenelidae-, 6 new genera and 11 new species: Meiaghilarella cretacica n.gen., n.sp. (Sepulcidae Ghilarellinae), Eosyntexis catalonicus n.sp., Cretosyntexis montsecensis n.gen., n.sp. (Anaxyelidae Syntexinae), Montsecephialtites zherikhini n.gen., n.sp. (Ephialtitidae Ephialtitinae), Karataus hispanicus n.sp. (Ephialtitidae Symphytopterinae), Manlaya ansorge i n.sp. (Gasteruptiidae Baissinae), Andrenelia pennata n.gen., n.sp. (Andrenelidae n. fam.), Cretoserphus gomezi n.gen., n.sp. (Mesoserphidae), Montsecosphex jarzembow skii n.gen., n.sp., Angarosphex penyalveri n.sp., Pompilopterus (?) noguerensis n.sp. (Sphecidae Angarosphecinae), Cretoscolia conquensis n.sp. (Scoliidae Archaeoscoliinae). The Mesozoic family Ephialtitidae is revisited based on the restudy of the type-species. We compare these Spanish Cretaceous assemblages with other ones from various parts of the world: Central and Eastern Asia, England, Australia, and Brazil. The number of genera and families identified in the Spanish fossil-sites is almost the same as in the English Purbeck and Wealden. The absence of some hymenopteran groups as Xyelidae, is consistent with the warm climate know to exist in Spain during the Early Cretaceous. We conclude that both La Cabrúa and La Pedrera assemblages - the two sites that have yielded the greatest number of species- correspond to the Lower Cretaceous “Baissin type” (sensu Rasnitsyn et al., 1998), but including some Jurassic “survivors”. La Pedrera assemblage fits equally well in the “angarosphecine subtype”, while La Cabrúa roughly corresponds to the “proctotrupid” one, although shows a comparative ly high proportion of angarosphecins. This fact may suggest: a) possibly asynchrony between these two fossilsites, b) environmental differences not reflected in the lithological record, c) different taphonomic processes and/or, d) insufficient sample size - to reflect the reality of the source populations-. La Pedrera assemblage is very similar to those from Weald Clay (England), Bon Tsagan (Mongolia) and Santana (Brazil). La Cabrúa approaches to a some extent, though not quite agrees with the Purbeck (UK), Koonwarra (Australia), and most Lower Cretaceous Asian assemblages
First Records of Scolebythidae and Chrysididae (Hymenoptera, Chrysidoidea) in Rovno Amber
Recorded from the Late Eocene Rovno amber (Ukraine) are above 300 families of Arthropoda. One hundred, seventy-four new species, 35 new genera and one new tribe have been described there in 45 families, including 42 species, 9 genera and one tribe of Hymenoptera. The first record of Scolebythidae is documented herein along with more detail information about Chrysididae which was only mentioned there before. Chrysidids are diverse and not very rare in the Rovno amber: four known inclusions represent at least three species in two genera. This makes a contrast with the Baltic amber: of 34 specimens known to Brues (1933), 30 represent only two species. Genera Pristapenesia Brues, Palaeobethylus Brues and Palaeobethyloides Brues and species Palaeobethylus politus Brues and Pristapenesia primaeva Brues, previously known in Baltic amber only, are recorded in Rovno amber as well.Из позднеэоценового ровенского янтаря известно уже более 300 семейств артропод. Из ровенского янтаря были описаны 174 новых вида и 35 родов и одна триба из 45 семейств, в том числе 42 вида, 9 родов и одна триба перепончатокрылых насекомых. В данной работе впервые приводится находка семейства Scolebythidae в ровенском янтаре. Информация о ровенских осах-блестянках (Chrysididae) ранее ограничивалась упоминанием в списке семейств. Блестянки оказались разнообразными и не слишком редкими в ровенском янтаре: в четырех известных включениях представлены по крайней мере три вида из двух родов, в то время как из 34 экземпляров, известных Брюсу (Brues, 1933) из балтийского янтаря, 30 принадлежали лишь к двум видам. Роды Pristapenesia Brues, Palaeobethylus Brues и Palaeobethyloides Brues, виды Palaeobethylus politus Brues и Pristapenesia primaeva Brues, ранее известные только из балтийского янтаря, впервые отмечены для ровенской фауны
New species of the genus Blattinopsis Giebel, 1867 (Insecta: Blattinopsida: Blattinopsidae) from the Permian of Taimyr Peninsula, Russia
Rasnitsyn, A.P., Aristov, D.S. (2021): New species of the genus Blattinopsis Giebel, 1867 (Insecta: Blattinopsida: Blattinopsidae) from the Permian of Taimyr Peninsula, Russia. Far Eastern Entomologist 437: 6-9, DOI: 10.25221/fee.437.2, URL: http://dx.doi.org/10.25221/fee.437.
New species of the genus Glaphyrophlebia (Insecta, Blattinopsida: Blattinopsidae) from the Upper Carboniferous of Ukraine
Aristov, D.S., Rasnitsyn, A.P. (2022): New species of the genus Glaphyrophlebia (Insecta, Blattinopsida: Blattinopsidae) from the Upper Carboniferous of Ukraine. Far Eastern Entomologist 450: 9-11, DOI: 10.25221/fee.450.2, URL: http://dx.doi.org/10.25221/fee.450.
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