Two new species of Palaeoarthroteles Kovalev and Mostovski (Diptera, Rhagionidae) from the Callovian-Oxfordian (Jurassic) Daohugou biota of China

Two new species of fossil snipe flies (Rhagionidae) from the Daohugou Formation of Chifeng City in Inner Mongolia Autonomous Region (northeastern China) are described as Palaeoarthroteles jurassicus nov. sp. and P. pallidius nov. sp. They are the first record of the genus Palaeoarthroteles Kovalev and Mostovski beyond Siberia, which have implications for stratigraphic correlation of the formations in which they are found.     

Three distinct but rare kovalevisargid flies from the Jurassic Daohugou biota,China (Insecta,Diptera, Brachycera,Kovalevisargidae)

Abstract: Three nearly complete male specimens of kovalevisargid flies are described as Kovalevisargus macropterus sp. nov., K. brachypterus sp. nov. and Kerosargus sororius sp. nov. (family Kovalevisargidae) from the Callovian–Oxfordian Daohugou biota in Inner Mongolia, China. These extend the range of the family Kovalevisargidae outside of Central Asia for the first time, reveal new morphological details about kovalevisargid flies and offer new evidence for the biostratigraphic correlation of nonmarine sedimentary strata of both the Karabastau and Daohugou Formations. Close similarities in the composition of insect taxa from both entomofaunas imply not only the geological age but also the sedimentary environment at that time being the same, or nearly so. Familial and generic diagnoses of kovalevisargid flies are supplemented based on information derived from these new species.     

Records of bizarre Jurassic brachycerans in the Daohugou biota,China (Diptera,Brachycera, Archisargidae and Rhagionemestriidae)

Abstract: Four new Brachycera fossils were collected from the Daohugou biota, China. Among these, two impressions demonstrating peculiar wing venation can be designated as two new species of a new genus (Mostovskisargus portentosus gen. et sp. nov. and M. signatus sp. nov.) referred to a new subfamily Mostovskisarginae (subfam. nov.) within Archisargidae. The third impression belongs to a new species (Calosargus (Pterosargus) sinicus sp. nov.) referred to the subgenus Pterosargus Mostovski, 1997 of Calosargus Mostovski, 1997 within Archisarginae, Archisargidae. It is only the second member of the subgenus Pterosargus worldwide. The fourth impression is a nearly complete fly, Jurassinemestrinus orientalis gen. et sp. nov. referable to Rhagionemestriidae. It reveals new morphological data about rhagionemestriids and extends the geographical distribution of this group beyond Europe and Central Asia during the Mesozoic. A correlation for the archisargid composition of taxa in Daohugou and Karabastau formations is discussed. The age of the fly‐bearing strata is briefly reassessed and can be more accurately limited to the Callovian–Oxfordian based on both biostratigraphical correlation and radiometric dating.     

Snipe flies (Diptera: Rhagionidae) from the Daohugou Formation (Jurassic), Inner Mongolia,and the systematic position of related records in China

Abstract: Four new species referred to three new genera and one known genus of fossil snipe flies (Family Rhagionidae) from the Daohugou Formation of Chifeng City in Inner Mongolia, north‐eastern China, are described as Daohugorhagio elongatus gen. et sp. nov., Parachrysopilus jurassicus gen. et sp. nov., Sinorhagio sinuatus sp. nov. and Trichorhagio gregarius gen. et sp. nov. These taxa represent only a fraction of the rhagionid assemblage in the Daohugou biota. They contribute towards the high diversity and abundance of snipe flies during the latest Middle Jurassic – earliest Late Jurassic. The diagnosis of Sinorhagio K. Zhang, Yang and Ren, 2006 is revised based on the new results. Many genera and species from the Lower Cretaceous of China have been assigned to Rhagionidae. Most of these do not actually belong to this family: specifically Mesorhagiophryne incerta Hong and Wang, 1990, M. robusta Hong and Wang, 1990, Mesostratiomyia laiyangensis Hong and Wang, 1990, Stratiomyopsis robusta Hong and Wang, 1990, Longhuaia orientalis Hong, Wang and Sun, 1992, Basilorhagio venusius Ren, 1995. Pauromyia oresbia Ren, 1998 is transferred to an archisargid genus as Sharasargus oresbius (Ren, 1998) comb. nov.     

New Ephialtitidae (Insecta: Hymenoptera) from the Jurassic Daohugou Beds of Inner Mongolia,China

Five new species are described from the Middle–Upper Jurassic Daohugou Beds of Inner Mongolia, China, and assigned to the genus Karataus Rasnitsyn, 1977 in the subfamily Symphytopterinae of Ephialtitidae. They are illustrated as Karataus daohugouensis n. sp., K. strenuus n. sp., K. vigoratus n. sp., K. exilis n. sp., and K. orientalis n. sp., and a key to species of Karataus is presented.     

The first find of chrysomelids (Insecta: Coleopetra: Chrysomeloidea) from Callovian-Oxfordian Daohugou biota of China

Tarsomegamerus mesozoicus nov. gen., nov. sp., an almost complete specimen of leaf beetle from the Callovian-Oxfordian of Daohugou Formation in Inner Mongolia, China is described. Tarsomegamerus mesozoicus is assigned to the Protoscelinae (Chrysomelidae, Coleoptera). This new leaf beetle represents the first record of chrysomeloids from Mesozoic of China and it extends the geographical distribution of Protoscelinae from central Asia into eastern Asia. This find provides new fossil material for studying the origin and evolution of Chrysomeloidea and by making a stratigraphic correlation of the correlative non-marine sedimentary rocks. Although the age of the Daohugou Formation is debatable it is most likely Callovian-Oxfordian (latest Middle Jurassic-earliest Late Jurassic) rather than early Middle Jurassic (late Aalenian-early Bajocian) or Early Cretaceous.     

New taxa of snipe flies (Diptera: Brachycera: Rhagionidae) in the Daohugou Biota,China

Three impressions of snipe flies from the uppermost Middle Jurassic or lowermost Upper Jurassic Daohugou Formation in northeastern China are described as Protorhagio parvus sp. nov. and Lithorhagio megalocephalus get. et sp. nov. Protorhagio parvus is the first record of the genus Protorhagio Rohdendorf, 1938 outside the Karatau-Mikhailovka locality (Kazakhstan), which has implications for biostratigraphic correlation of the formations, in which they are found. The taxonomic position of Lithorhagio gen. nov. is discussed. Although Orsobrachyceron Ren, 1998 demonstrates some resemblance in form to the new genus, it probably belongs to Xylomyidae rather than Rhagionidae.     

Middle Jurassic fossils of the genus Sharasargus from Inner Mongolia, China (Diptera: Archisargidae)

To date, only two species of the genus Sharasargus are known. These Upper Jurassic species were found in Mongolia and Kazakhstan, respectively. We herein describe two new species from the Middle Jurassic, which were found in Inner Mongolia, China. They are the oldest known fossils of this genus. A key to Sharasargus species is given.     

Contributions to the study of fossil snipe flies (Diptera: Rhagionidae): The genus Protorhagio

Three new species of the snipe fly genus Protorhagio, viz. P. karataviensis sp. nov., P. ponomarenkoi sp. nov., and P. ruptus sp. nov., are described from the Middle-Upper Jurassic Karabastau Formation in Kazakhstan. The type species of the genus, P. capitatus, is redescribed. A key is provided to all known species of Protorhagio.     

中国四川阳蝇属五新种(双翅目:蝇科)

报告采自四川西部山区的蝇科阳蝇属HelinaR.-D.五新种,即：亚喜密阳蝇Helina subevecta sp.nov,阳阳蝇Helina solata sp.nov,用公山阳蝇Helina zhougongshanna sp.nov,康定阳蝇Helina kangdingen-sis sp.nov和赘脉阳蝇Helina appendicivena sp.nov。模式标本保存于中国军事医学科学院微生物流行病研究所医学昆虫标本馆。     

Two new species of the genus Helina from Sichuan Province,China (Diptera: Muscidae)

Two new species of the genus Helina Robineau-Desvoidy, collected from the western mountainous region of Sichuan Province are described, namely H. postiflexa n. sp. and H. subdibrachiata n. sp.     

New mayfly nymphs from the Jurassic of Northern and Northeastern China (Insecta: Ephemeroptera)

Four new species of mayfly nymphs, Furvoneta relicta sp. nov., Clavineta eximia sp. nov. (originally Mesoneta antiqua), Mesobaetis latifilamentacea sp. nov., and Stackelbergisca cylindrata sp. nov. are described from the Jurassic of China. All these species may have inhabited lakes rather than flowing water. The geological age and stratigraphical correlation of the nymph-bearing strata are briefly reviewed.     

First description of axymyiid fossils (Insecta: Diptera: Axymyiidae)

Two species of fossil insects from the Daohugou Formation of Chifeng City in Nei Monggol Autonomous Region, northeastern China are described, and recognized as Psocites pectinatus (Hong, 1983) nov. emend., nov. transl. and P. fossilis nov. sp. They are the oldest representatives of the family Callovian or Axymyiidae, and first described of this family in the Mesozoic. Although early the age of the fly-bearing beds is controversial, it is probably Oxfordian or Kimmeridgian (Late Jurassic) rather than Early Cretaceous or Middle Jurassic.     

云南省花蝇科三新种(双翅目:花蝇科)

记述采自云南省花蝇科3新种,即：①分布于云南省禄劝的范氏草种蝇Phorbia fani sp.nov.,该种近似于四川产的峨眉草种蝇Phorbia omeishanensis Fan,1982,但新种雄性具1根上眶鬃;前中鬃1对,肩后鬃1：2,无后背侧片鬃;第5腹板侧叶的内缘具4行小刚毛,侧尾叶侧面观其中部宽大,后面观其端部较直等不同于已知种。②分布于土产兰坪冷山的冷山须泉蝇Pegoplata lengshanensis sp.nov.,该种雄性主要特征近似于,河南须泉蝇Pegoplata henanensis(Ge et Fan,1982）,但新种具间额鬃,侧颜为触角宽的2／3,芒具长纤毛,最长芒毛为触角宽的2／5（约为芒基的2倍）,后头背区裸;盾片具3条棕色粉被条;后股有1列后腹鬃;阳茎端部圆形,不向两侧呈角状延伸等不同。③分布于云南省泸水片马的云南泉蝇Pegomya yunnanensis sp.nov.,该种近似日本泉蝇Pegomya japonica Suwa,1974,但新种雄笥前中鬃呈2列体毛状,腹侧片鬃1＋3;中胫无后腹鬃,后胫后背鬃2;第5腹板侧叶侧面观较细长,侧尾叶后面观较宽,侧面观其端部前缘稍弯曲,前、后阳基侧突的形状不同。模式标本保存于沈阳师范大学昆虫研究所。     

A new Diostracus species from Sichuan,China (Diptera: Dolichopodidae)

A new species of the genus Diostracus from Sichuan is described: Diostracus wolongensis. A known species, Diostracus undulatus Takagi, is redescribed in this paper. The geographic distribution of Diostracus in China is presented.     

New species of the genus Cyamops Melander from New Zealand (Diptera, Periscelididae, Stenomicrinae)

Two new species of the genus Cyamops (Diptera: Periscelididae), the first from New Zealand, are described. The two newly described species are: Cyamops alessandrae and Cyamops crosbyi. A key to the genera of the subfamily Stenomicrinae and to the species of Cyamops from the Australasian/Oceanian Region and detailed illustrations of structures of the male terminalia are provided.     

中国四川棘蝇属五新种(双翅目:蝇科)

记述分布于中国四川西部蝇科中的棘蝇属Phaonia Robineau-Desvoidy,1983五新种：亮黑棘蝇Phaonia clarinigra,sp．nov．;西部棘蝇Phaonia hesperia,sp．nov．;跑马棘蝇Phaonia paomashanica,sp．nov．;蜀棘蝇Phaonia sichuamla,sp．nov．轿顶棘蝇Phaonia jiaodingshanica,sp．nov;模式标本存在中国科学院上海生命科学研究院,植物生理生态研究所。     

中国棘蝇属三新种记述 (双翅目：蝇科)

报道了采自中国四川地区的棘蝇属Phaonia Robineau Desvoidy,1830三新种：凹铗棘蝇Phaonia holcocerca Feng et Ma,sp.nov.,高巅棘蝇Phaonia supernapica Feng et Ma,sp.onv.,孟氏棘蝇Phaonia Mengi Feng,sp.nov.。后者系纪念我国已故著名昆虫学家孟庆华教授对医学昆虫学研究所作的贡献而命名。模式标本存于北京军事医学科学院微生物流行病研究所。