A new genus of Scoliidae (Insecta: Hymenoptera) from the Lower Cretaceous of northeast China

2015 ◽  
Vol 52 ◽  
pp. 579-584 ◽  
Author(s):  
Qi Zhang ◽  
Haichun Zhang ◽  
Alexandr P. Rasnitsyn ◽  
Edmund A. Jarzembowski
2013 ◽  
Vol 44 (2) ◽  
pp. 203-212 ◽  
Author(s):  
Chenyang Cai ◽  
Diying Huang

A remarkable oxyteline rove beetle species, Anotylus archaicus Yue, Makranczy & Ren, 2012, has recently been described based on several exquisitely preserved fossil impressions from the Lower Cretaceous Yixian Formation of Liaoning, northeast China. Based on our two new specimens and a comprehensive comparison with extant Anotylus species, we here suggest that all the previously-reported and new specimens, bearing separated gular sutures, sub-contiguous mesocoxae, 5-segmented metatarsi, short and poorly-sclerotized abdominal segment II, and abdominal segments III–VII each with one pair of paratergites, represent a new genus and belong to the basal oxyteline tribe Euphaniini rather than Oxytelini. In addition, it was suggested as the earliest fossil rove beetle demonstrating sexual dimorphism, the male with strong projections of the anterior pronotal angles. However, we suggest that the sexual dimorphism is probably misinterpreted, since the so-called projections can also be found in a female specimen. The projections actually formed when the anterior pronotal margin broke, a condition when the head is retracted into the pronotum.


2013 ◽  
Vol 44 (2) ◽  
pp. 213-220 ◽  
Author(s):  
Chenyang Cai ◽  
Diying Huang

Mesocoprophilus clavatus gen. et sp.n., a new rove beetle belonging to the Recent subfamily Oxytelinae, is described and illustrated on the basis of a well-preserved specimen from the Lower Cretaceous Yixian Formation near Huangbanjigou, Beipiao City, Liaoning Province, Northeast China. This new genus can be placed in the extant tribe Coprophilini as supported by its general habitus, sub-contiguous mesocoxae, 5-segmented metatarsi, and abdominal segments III–VII each with two pairs of paratergites. In addition, it displays some features resembling the more basal tribe Euphaniini, including clavate antennae and short and poorly-sclerotized abdominal sternite II.


2013 ◽  
Vol 44 ◽  
pp. 1-11 ◽  
Author(s):  
Edmund A. Jarzembowski ◽  
Evgeny V. Yan ◽  
Bo Wang ◽  
Haichun Zhang

1986 ◽  
Vol 5 (2) ◽  
pp. 1-8 ◽  
Author(s):  
Mark A. Wilson

Abstract. Three new species and one new genus of adherent foraminiferans have been found within bivalve borings in cobbles from the Faringdon Sponge-gravel (Upper Aptian) of south-central England. The new genus and species, Lapillincola faringdonensis is a uniserial textulariine with an initial planispiral coil and a multiple aperture. Lapillincola gen. nov. is a remarkable homeomorph of Arenonina Barnard, which was originally described as an agglutinated form. Arenonina is shown here to actually be calcareous and perforate, and thus a junior synonym of Rectocibicides Cushman & Ponton. Acruliammina parvispira sp. nov. is another uniserial textulariine with an initial coil. Bullopora ramosa sp. nov. is an adherent polymorphinid with a branching, irregular series of adherent chambers. These foraminiferans may have used the bivalve borings as spatial refuges from the abrasive, high energy environment of the Sponge-gravel.


Author(s):  
Alexander V. Khramov

ABSTRACTOne new genus and four new species of Chrysopidae are described from the Lower Cretaceous of Khasurty, Transbailakia (Russia):Mesypochrysa cannabinasp. nov.;M. naranicasp. nov.;Aberrantochrysa buryaticagen. & sp. nov.; andA. pulchellagen. & sp. nov. The abundance of Chrysopidae in Mesozoic localities is discussed.


Zootaxa ◽  
2005 ◽  
Vol 1087 (1) ◽  
pp. 53 ◽  
Author(s):  
FEDERICA MENON

Tettagalma striata, new genus and species of Tettigarctidae (Hemiptera: Cicadoidea), is described from the Lower Cretaceous laminated limestones of the Crato Formation, Brazil. The new discovery represents the first certain record of this family in Brazil and confirms its presence in the Southern Hemisphere during the early Cretaceous. Architettix Hamilton, 1990, from the same formation, and all the taxa originally placed in Cicadoprosbolidae, are also included in Tettigarctidae, as the former is considered a synonym.


Zootaxa ◽  
2008 ◽  
Vol 1681 (1) ◽  
pp. 62 ◽  
Author(s):  
BINGLAN ZHANG ◽  
DONG REN ◽  
HONG PANG

Telmaeshna paradoxica gen. et sp. nov., is described from the Upper Jurassic to Lower Cretaceous Yixian Formation, near Chaomidian Village, Beipiao City, Liaoning Province, China. It is included in the Anisoptera: Aeshnoptera: Aeshnomorpha: Panaeshnida, on the basis of the following characters: strongly elongated pterostigma; well-defined anal loop and Rspl; undulated RP2, RP3/4 and MA; divided hypertriangle and discoidal triangle; and prolonged gaff. It cannot be assigned to any described extant or extinct family of Panaeshnida, but we refrain from erecting a new family to accommodate it until more features (forewing, body characters) are known. Consequently, this new genus is provisionally retained as family uncertain. Its phylogenetic relationships within Anisoptera are discussed.


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