[Show abstract][Hide abstract] ABSTRACT: A fourth genus of Mesozoic water measurers (Gerromorpha: Hydrometridae) is discovered and described from the remains of an individual preserved in mid-Cretaceous (Albian-Cenomanian) amber from northern Myanmar. Burmametra macrocarinata gen. et sp. nov. is compared with other Recent and extinct hydrometrid genera and shares apomorphies with the subfamily Hydrometrinae. Based on the distribution of characters states and a preliminary cladistic analysis, the genus is putatively basal among this subfamily. Together with those previous records in Burmese amber and the Crato Limestones of Brazil, Burmametra confirms the early diversification of the Hydrometridae by the Early Cretaceous.
Cretaceous Research 01/2015; 52:118-126. DOI:10.1016/j.cretres.2014.09.001 · 2.39 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Isoxys is a very common Cambrian bivalved arthropod, specimens of which are normally preserved only as valves. The discovery of the soft anatomy of Isoxys may greatly assist understanding affinities and functional morphology. Isoxys minor Luo and Hu in Luo et al., 2008 is the most common representative of all animal species known from the lower Cambrian Guanshan fauna (Cambrian Series 2, Stage 4) at the Shitangshan Section, near Kunming, Yunnan Province, Southwest China. Here we describe and reconstruct the morphology of I. minor on the basis of newly illustrated fossils and a few new specimens that bear soft-parts including new discovery of frontal grasping appendages. Like the soft anatomy of other known Isoxys, it bears a pair of large stalked eyes, a pair of specialized frontal grasping appendages, approximately 12–14 paired biramous limbs, and a helm-like tail exposed outside the valves.
[Show abstract][Hide abstract] ABSTRACT: The reconstruction and timing of the early stages of social evolution, such as parental care, in the fossil record is a challenge, as these behaviors often do not leave concrete traces. One of the intensely investigated examples of modern parental care are the modern burying beetles (Silphidae: Nicrophorus), a lineage that includes notable endangered species. Here we report diverse transitional silphids from the Mesozoic of China and Myanmar that provide insights into the origins of parental care. Jurassic silphids from Daohugou, sharing many defining characters of Nicrophorinae, primitively lack stridulatory files significant for parental care communications; although morphologically similar, Early Cretaceous nicrophorines from the Jehol biota possess such files, indicating that a system of parental care had evolved by this early date. More importantly, burying beetles of the genus Nicrophorus have their earliest first record in mid-Cretaceous Burmese amber, and document early evolution of elaborate biparental care and defense of small vertebrate carcasses for their larvae. Parental care in the Early Cretaceous may have originated from competition between silphids and their predators. The rise of the Cretaceous Nicrophorinae implies a biology similar to modern counterparts that typically feed on carcasses of small birds and mammals.
Proceedings of the National Academy of Sciences 09/2014; 111(39). DOI:10.1073/pnas.1412280111 · 9.81 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: The staphylinid subfamily Micropeplinae includes small strongly sclerotized beetles with truncate elytra leaving the most part of abdomen exposed. Fossil micropeplines are rare and confined to Cenozoic representatives of extant gen-era. Here, we describe the oldest micropepline, Protopeplus cretaceus gen. and sp. n., from the Upper Cretaceous Burmese amber. Fluorescence microscope and confocal laser scanning microscopy (CLSM) were both used to reveal diagnostic features of Micropeplinae and some primitive traits that place Protopeplus very basally within Micropeplinae.
[Show abstract][Hide abstract] ABSTRACT: New beetles are described from the Middle Permian (Upper Capitanian) locality Yinping (Anhui Province, China): Linicupes yinpinensis gen. et sp. nov. (Permocupedidae), Taldycupes pingi sp. nov. (Taldycupedidae), Archosyne permiana gen. et sp. nov., Chaocoleus limnebius gen. et sp. nov. (Ademosynidae) and Asiocoleopsis hongi sp. nov. (Asiocoleidae); the type material of Dikerocoleus divisus Lin, 1982 from the same type locality is redescribed. Comparison with beetles from the Permian of European Russia shows that Yinping beetles are similar to Late Severodvinian beetles rather than to Early Severodvinian and Urzhumian ones.
[Show abstract][Hide abstract] ABSTRACT: The Thysanoptera (Paraneoptera) constitute a very diverse order of minute insects, characterized mainly by a ‘punch-and-suck’ mode of feeding due to a specialized asymmetrical gnathal apparatus with two maxillary stylets plus only one functional mandible. We have studied their fossil relatives from the Thripida family sensu Vishniakova (1981)49.
Vishniakova, V. N. 1981. New Palaeozoic and Mesozoic Lophioneuridae (Thripida). Pp. 43–63 in V. N. Vishnyakova, G. M. Dlussky & L. N. Pritykina (eds) [New fossil insects from the territory of the USSR]. Trudy Paleontologicheskogo Instituta Academii nauk SSSR, Moscow. [in Russian].View all references and Zherikhin (2002)53.
Zherikhin, V. V. 2002. Order Thripida Fallen, 1914 (sic) (= Thysanoptera Haliday, 1836). The Thrips. Pp. 133–143 in A. P. Rasnitsyn & D. L. J. Quicke (eds) History of insects. Kluwer Academic Publishers, Dordrecht.View all references, as revised by Nel et al. (2012a)42.
Nel, P., Azar, D., Prokop J., Roques P., Hodebert G. & Nel A. 2012a. From Carboniferous to Recent: wing venation enlightens evolution of thysanopteran lineage. Journal of Systematic Palaeontology, 10, 385–399.[Taylor & Francis Online], [Web of Science ®]View all references, in order to identify new morphological characters and help to polarize some of the characters present in the Thysanoptera. Here we present perfectly preserved specimens from the Middle Jurassic Daohugou beds of China, approximately 165 million years old, belonging to three new species and one new genus of Lophioneurida (Thripida): Lophiosina lini gen. et sp. nov., Undacypha bournieri sp. nov. and Undacypha kreiteri sp. nov. Precise analysis of the fossil heads revealed two ancestral mandibular sclerites that can still be found modified in the Recent thrips mouthcone, although in different ways in the two suborders of Thysanoptera, Terebrantia and Tubulifera. Their absence from the left side of the mouthcone of Terebrantia is a morphological apomorphy for this suborder. Studying fossils also allows us to inform the evolution of Thysanoptera in the deep past. Here we show that some of the characters usually thought to be apomorphies for Thysanoptera are instead apomorphies for all Thripida; this is the case for the typical gnathal apparatus but also for the eversible arolium and the fringe hairs. This leads us to redefine the Thysanoptera within the Thripida.http://zoobank.org/urn:lsid:zoobank.org:pub:72C95534-72D4-46CC-9861-337FE030CF17
[Show abstract][Hide abstract] ABSTRACT: Juraheterophlebia sinica, a new species of damsel-dragonfly, is described from the Middle Jurassic of China. Its fore- and hind wings in connection to the body allows comparison of the type genera of the families Erichschmidtiidae and Juraheterophlebiidae, respectively based on a forewing and a hind wing. Juraheterophlebiidae is a junior synonym of the Erichschmidtiidae. The new fossil confirms the previous attributions of Erichschmidtia and Juraheterophlebia to the clade Heterophlebioptera. ????????????????? Juraheterophlebia sinica???????????????, ??????????????????Erichschmidtiidae??Juraheterophlebiidae????????? Juraheterophlebiidae?Erichschmidtiidae?????????????????: Erichschmidtia?Juraheterophlebia??Heterophlebioptera???
Alcheringa An Australasian Journal of Palaeontology 01/2014; 38(1). DOI:10.1080/03115518.2014.843385 · 0.90 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: A new rove beetle, Sinanthobium daohugouense, new genus, new species, is described and illustrated on the basis of a tiny impression fossil from the Middle Jurassic Jiulongshan Formation at Daohugou, Inner Mongolia, China. The new genus is placed in the subfamily Omaliinae (Coleoptera: Staphylinidae), tentatively in the Recent tribe Anthophagini. The first find of a definitive omaliine beetle from the Middle Jurassic of China provides direct evidence on the origin and early evolution of Omaliinae.
The Canadian Entomologist 10/2013; 145(05). DOI:10.4039/tce.2013.33 · 0.67 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: The first two rove beetle fossils discovered from the Late Jurassic Talbragar Fish Bed in New South Wales, Australia are described and illustrated. Juroglypholoma talbragarense n. sp. is the second fossil record for one of the smallest and latest recognized staphylinid subfamily Glypholomatinae. The other staphylinid, Protachinus minor n. gen. n. sp., is an unusual member of extant subfamily Tachyporinae (tribe Tachyporini). It significantly retains several distinct features, including entire epistomal suture, and abdominal tergites III–VI each with a pair of basolateral ridges. The discovery of a new glypholomatine in Australia, together with recently reported one from the Middle Jurassic Daohugou biota of China, suggests the subfamily Glypholomatinae was probably much more widespread in the Jurassic than previously thought. INTRODUCTION
Journal of Paleontology 08/2013; 87(4). DOI:10.1666/12-136 · 1.20 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Platydracus breviantennatus n. sp., is described and figured based on an impression fossil from the upper Eocene Florissant beds of Colorado, the United States. Based on the large and densely setose body, relatively small eyes, and robust mandibles (right mandible seemingly with one simple preapical tooth), tibiae and antennae, the new species is placed in the modern genus Platydracus Thomson, 1858. It differs from other species of Platydracus by its large body, small head, and distinctly short antennae.
[Show abstract][Hide abstract] ABSTRACT: A remarkable new rove beetle, Protodeleaster glaber gen. et sp. nov, is described and illustrated based on two well-preserved specimens from the Lower Cretaceous Yixian Formation of Liaoning Province, China. The new genus is placed in the extant staphylinid subfamily Oxytelinae, and recent tribe Euphaniini, based on several characteristic features (e.g. a single pair of wide paratergites on abdominal segments; open procoxal fissures; contiguous mesocoxae; abdominal sternite II short and poorly sclerotized). This find from the Early Cretaceous documents the oldest fossil representative of the tribe Euphaniini. Morphologically, it resembles most closely the recent genus Platydeleaster Schulke, 2003, an unusual member of the extant Oxytelinae. According to the currently accepted hypothesis of the phylogenetic position of Euphaniini and the prior discovery of other taxa from the Late Jurassic, we suggest the tribe might have first appeared at least as early as the Late Jurassic.
[Show abstract][Hide abstract] ABSTRACT: Two different patterns of wing venation are currently supposed to be present in each of the three orders of Paraneoptera. This is unlikely compared with the situation in other insects where only one pattern exists per order. We propose for all Paraneoptera a new and unique interpretation of wing venation pattern, assuming that the convex cubitus anterior gets fused with the common stem of median and radial veins at or very near to wing base, after separation from concave cubitus posterior, and re-emerges more distally from R + M stem. Thereafter, the vein between concave cubitus posterior and CuA is a specialized crossvein called "cua-cup," proximally concave and distally convex. We show that despite some variations, that is, cua-cup can vary from absent to hypertrophic; CuA can re-emerge together with M or not, or even completely disappear, this new interpretation explains all situations among all fossil and recent paraneopteran lineages. We propose that the characters "CuA fused in a common stem with R and M"and "presence of specialized crossvein cua-cup" are venation apomorphies that support the monophyly of the Paraneoptera. In the light of these characters, we reinterpret several Palaeozoic and early Mesozoic fossils that were ascribed to Paraneoptera, and confirm the attribution of several to this superorder as well as possible attribution of Zygopsocidae (Zygopsocus permianus Tillyard, 1935) as oldest Psocodea. We discuss the situation in extinct Hypoperlida and Miomoptera, suggesting that both orders could well be polyphyletic, with taxa related to Archaeorthoptera, Paraneoptera, or even Holometabola. The Carboniferous Protoprosbolidae is resurrected and retransferred into the Paraneoptera. The genus Lithoscytina is restored. The miomopteran Eodelopterum priscum Schmidt, 1962 is newly revised and considered as a fern pinnule. In addition, the new paraneopteran Bruayaphis oudardi gen. nov. et sp. nov. is described fromthe Upper Carboniferous of France (see Supporting Information).
Journal of Morphology 05/2012; 273(5):480-506. DOI:10.1002/jmor.11036 · 1.55 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Mongoliaeshna sinica gen. et sp. n., third record of the Mesozoic aeshnopteran family Progobiaeshnidae is described from the Lower Cretaceous of Yixian Formation in Liutiaogou (Ningcheng County, Inner Mongolia, China).
[Show abstract][Hide abstract] ABSTRACT: Sinocalopteryx shangyongensis nov. gen., nov. sp., the first fossil calopterygoid from eastern Asia, is described from the earliest Eocene of Southwest China. Although the new genus has the principle synapomorphies of Calopterygoidea, it possesses a unique structure (possible reversal) in the pattern of vein RP1/2.
[Show abstract][Hide abstract] ABSTRACT: Protoliupanshania wangi, new genus and species, is described from the Lower Cretaceous Yixian Formation of western Liaoning, China. It is probably the sister genus of the clade that comprises all other liupanshaniid genera, based on current knowledge of the wing venation of Paramesuropetala.
[Show abstract][Hide abstract] ABSTRACT: The first Chinese and English representatives of the Mesozoic gomphid family Proterogomphidae are described, respectively Lingomphus magnificus gen. et sp. nov., and Cordulagomphus europaeus sp. nov. A phylogenetic analysis of the most ‘basal’ gomphid lineages is proposed, showing the monophyly of the Proterogomphidae and the position of Lingomphus as sister group of all other representatives of this family. C. europaeus is the first Eurasiatic representative of the subfamily Cordulagomphinae that was previously restricted to the Lower Cretaceous of Crato Formation (South America). The Proterogomphidae has a known distribution very similar to those of several other Lower Cretaceous insect groups, viz. Asia, Europe, and South America, showing that the distribution of the climates and land masses at that time was not a ‘serious’ impediment for the displacements of these organisms.
Cretaceous Research 02/2010; 31(1):94-100. DOI:10.1016/j.cretres.2009.09.010 · 2.39 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: In recent times many authors have regarded the Protomeropidae and Microptysmatidae - two essentially Permian groups - as either early trichopteran lineages or members of the stem-group of the Amphiesmenoptera (basically: Trichoptera+Lepidoptera). Actually none of these families possesses, in its ground plan, the most significant derived trait of the amphiesmenopteran forewing, namely a true ‘double-Y loop’ arrangement of the anal veins. Since ‘Carpenter’s organs’, small rounded structures in the costal area of the hindwing, are only known to occur in certain members of the Permochoristidae, Kaltanidae and Protomeropidae, these three families should belong to a fossil clade, which we ascribe to the Mecoptera, suborder Pistillifera sensu lato, mainly on account of a few venational features. Although we maintain the Microptysmatidae in the Mecopterida (=Panorpida, i.e. Amphiesmenoptera, Mecoptera, Diptera, and relatives), we propose to place this family in a separate order: the Permotrichoptera, n. status. Indeed, apparently, Microptysmatidae can be ascribed neither to the Amphiesmenoptera nor to the Antliophora (=Mecoptera-Diptera complex).
Annales- Societe Entomologique de France 01/2010; 46(1-2):262-270. DOI:10.1080/00379271.2010.10697667 · 0.54 Impact Factor