Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.14
Mathieu Boderau, V. Ngô-Muller, Ancheng Peng, Michael S. Engel, R. Garrouste, André Nel
The second fossil assassin bug of the cryptic subfamily Phimophorinae is described and figured from the mid-Miocene amber of the Dominican Republic, on the basis of traditional optical observations and a computed micro-tomography 3D reconstruction. The fossil can be attributed to the extant, monotypic genus Phimophorus Bergroth, which is currently known only from northern South America. The fossil extends the distribution of the lineage into the Caribbean of the Early Neogene and places it among a series of examples of arthropod groups that once thrived in Hispaniola but are today not native to the islands.
{"title":"Phimophorus chiodii sp. nov., first representative of a cryptic assassin bug subfamily from Dominican amber (Reduviidae: Phimophorinae) as revealed with traditional light microscopy and computed micro-tomographic reconstruction","authors":"Mathieu Boderau, V. Ngô-Muller, Ancheng Peng, Michael S. Engel, R. Garrouste, André Nel","doi":"10.11646/palaeoentomology.7.2.14","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.14","url":null,"abstract":"The second fossil assassin bug of the cryptic subfamily Phimophorinae is described and figured from the mid-Miocene amber of the Dominican Republic, on the basis of traditional optical observations and a computed micro-tomography 3D reconstruction. The fossil can be attributed to the extant, monotypic genus Phimophorus Bergroth, which is currently known only from northern South America. The fossil extends the distribution of the lineage into the Caribbean of the Early Neogene and places it among a series of examples of arthropod groups that once thrived in Hispaniola but are today not native to the islands.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140683321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.15
YAN-NAN Ma, S. Du, Dong Ren, YUN-ZHI Yao
A remarkable new genus and species, Mecocollaris simplipodus gen. et sp. nov. is described from mid-Cretaceous amber. It is the second fossil record of Nabinae from Myanmar amber. The new species is distinguished from other nabids based on labial segment Ⅲ longer than the combination of segments I, Ⅱ and Ⅳ, hind tibia without clear row of setae corresponding to stiff setae associated with the Ekblom’s organ. By comparing extant species and fossil records of Nabidae, the evolution of the Ekblom’s organ of nabids is discussed.
{"title":"A new genus and species of Nabinae (Heteroptera: Cimicomorpha: Nabidae) from mid-Cretaceous Burmese amber","authors":"YAN-NAN Ma, S. Du, Dong Ren, YUN-ZHI Yao","doi":"10.11646/palaeoentomology.7.2.15","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.15","url":null,"abstract":"A remarkable new genus and species, Mecocollaris simplipodus gen. et sp. nov. is described from mid-Cretaceous amber. It is the second fossil record of Nabinae from Myanmar amber. The new species is distinguished from other nabids based on labial segment Ⅲ longer than the combination of segments I, Ⅱ and Ⅳ, hind tibia without clear row of setae corresponding to stiff setae associated with the Ekblom’s organ. By comparing extant species and fossil records of Nabidae, the evolution of the Ekblom’s organ of nabids is discussed.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 368","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140682452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.5
André Nel, Jean-Paul Kundura
The fly family Bibionidae is extremely frequently found in the lacustrine insect assemblages between the late Eocene and the latest Miocene of France. For instance, the Bibionidae represent 25% of the fossil insects collected at Cereste (total 7,466 specimens, Oligocene, Lubéron, France) (Nel, 1991). It is not the case in the Paleocene lacustrine Konservat-Lagerstätte of Menat (Puy-de-Dôme, France). In this outcrop, we could find only four specimens of Bibionidae in a collection of ca. 6,768 insects. Two of these were previously described by Nel (2007) and Nel & Kundura (2023), respectively in the genera Plecia and Bibio. They are so rare, around 0.1% of the total number of insects in the collections we could study, that it is worth describing the two others herein. These specimens were in the studied collection but we did not notice them before now.
{"title":"A rare Plecia Wiedemann, 1828 (Diptera: Bibionidae) from the Paleocene of Menat, France","authors":"André Nel, Jean-Paul Kundura","doi":"10.11646/palaeoentomology.7.2.5","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.5","url":null,"abstract":"The fly family Bibionidae is extremely frequently found in the lacustrine insect assemblages between the late Eocene and the latest Miocene of France. For instance, the Bibionidae represent 25% of the fossil insects collected at Cereste (total 7,466 specimens, Oligocene, Lubéron, France) (Nel, 1991). It is not the case in the Paleocene lacustrine Konservat-Lagerstätte of Menat (Puy-de-Dôme, France). In this outcrop, we could find only four specimens of Bibionidae in a collection of ca. 6,768 insects. Two of these were previously described by Nel (2007) and Nel & Kundura (2023), respectively in the genera Plecia and Bibio. They are so rare, around 0.1% of the total number of insects in the collections we could study, that it is worth describing the two others herein. These specimens were in the studied collection but we did not notice them before now.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 34","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140683907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.7
Yuxuan Liu, PEI-CHAO Chen, Chaofan Shi, Dong Ren, Qiang Yang
A new genus and species of true dragonfly Hongtaous caii gen. et sp. nov. is described from the Middle Jurassic of Inner Mongolia, China. It is assigned to the family Aktasiidae based on the following: large and broad wings; narrow postnodal area with many cells distal of elongated pterostigma; very long and straight IR1; and widened area between RP1 and RP2, which is the oldest member of this family to date. Hongtaous caii sp. nov. differs from other genera by the configuration of wing venation such as: two rows of cells between RA and RP1 at level of Pt, and extending to the end of the wing; an elongated IR1, not distally vanishing; discoidal triangle and subdiscoidal triangle divided into multiple cells by transverse veins; presence of Rspl. In addition, its special cerci are simply discussed.
{"title":"The oldest aktassiid dragonfly (Odonata: Petaluroidea) from the Middle Jurassic of China","authors":"Yuxuan Liu, PEI-CHAO Chen, Chaofan Shi, Dong Ren, Qiang Yang","doi":"10.11646/palaeoentomology.7.2.7","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.7","url":null,"abstract":"A new genus and species of true dragonfly Hongtaous caii gen. et sp. nov. is described from the Middle Jurassic of Inner Mongolia, China. It is assigned to the family Aktasiidae based on the following: large and broad wings; narrow postnodal area with many cells distal of elongated pterostigma; very long and straight IR1; and widened area between RP1 and RP2, which is the oldest member of this family to date. Hongtaous caii sp. nov. differs from other genera by the configuration of wing venation such as: two rows of cells between RA and RP1 at level of Pt, and extending to the end of the wing; an elongated IR1, not distally vanishing; discoidal triangle and subdiscoidal triangle divided into multiple cells by transverse veins; presence of Rspl. In addition, its special cerci are simply discussed.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140683584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.3
Bruno Vallois, André Nel, Alexis Rastier, Eugenia Romero-Lebrón
Plant-animal interactions shed light on the ecology of the rich insect community from the middle Pennsylvanian basin of Northern France (Nord-Pas-de-Calais coal basin, Hauts-de-France). The data set derives from coal bed layers locally named the Bruay Formation and were collected on the slag heap. This work is a meta-analysis of the different types of damages caused by arthropods, especially insects, consisting of endophytic oviposition scars, holes, galls, bulges, and undetermined traces. These damage traces are associated with host plants belonging to Lycopsida, Medullosales, Pinopsida, and Polypodiopsida. The paleoenvironmental framework and mutualism within each community are also discussed. Based on the present discoveries in Northern France, these interactions may have occurred stratigraphically from Westphalian B (Anzin Formation) until to Westphalian C (Bruay Formation). Despite the limited fossilization potential and sampling difficulties due to slag heap bias, occurrences may be compared with other European localities of the Carboniferous age.
{"title":"Deciphering plant insect interactions from the Bruay Formation (Carboniferous, Nord / Pas-De-Calais coal basin, France)","authors":"Bruno Vallois, André Nel, Alexis Rastier, Eugenia Romero-Lebrón","doi":"10.11646/palaeoentomology.7.2.3","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.3","url":null,"abstract":"Plant-animal interactions shed light on the ecology of the rich insect community from the middle Pennsylvanian basin of Northern France (Nord-Pas-de-Calais coal basin, Hauts-de-France). The data set derives from coal bed layers locally named the Bruay Formation and were collected on the slag heap. This work is a meta-analysis of the different types of damages caused by arthropods, especially insects, consisting of endophytic oviposition scars, holes, galls, bulges, and undetermined traces. These damage traces are associated with host plants belonging to Lycopsida, Medullosales, Pinopsida, and Polypodiopsida. The paleoenvironmental framework and mutualism within each community are also discussed. Based on the present discoveries in Northern France, these interactions may have occurred stratigraphically from Westphalian B (Anzin Formation) until to Westphalian C (Bruay Formation). Despite the limited fossilization potential and sampling difficulties due to slag heap bias, occurrences may be compared with other European localities of the Carboniferous age.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 551","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140682331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.1
Xinneng Lian, YE-HAO Wang, Chenyang Cai, Di Huang
The field trips will cover the Mesozoic stratigraphy and palaeontology of the Ordos Basin and the Loess Plateau (Fig. 1). The towering Qinling Mountains developed in the southern part of Xi’an. This investigation has entered the Loess Plateau from the Guanzhong Basin, where Xi’an is located, to the Tongchuan area, and the northernmost city of Yulin is a former desert area. The purpose of the investigation is to understand the Mesozoic strata, palaeontology, palaeoclimate and tectonic movements in the Ordos Basin. From the dry hot environment of the Red Bed in the mid-Triassic, it experienced a large cycle of warm and humid environment and then to the dry climate of the Early Cretaceous. Specifically, the middle and lower parts of the Middle Triassic Ermaying Formation are red beds, and coal seams begin to appear in the upper part of the formation; the overlying Middle-Upper Triassic Yanchang Formation has extensive oil and gas resources, and the lower strata are called by some authors the Tongchuan Formation and yielded a large number of insect fossils. At the turn of the Triassic and Jurassic, the area was elevated and lacked deposit. The Fuxian Formation of coal-bearing strata developed in the Early Jurassic. In the Lower-Middle Jurassic, the Yan’an Formation was a set of coal-bearing strata, which developed the largest coal mine in China. The Middle-Upper Jurassic Zhiluo Formation is a glutenite deposit. The unconformity between the Zhiluo Formation and the conglomerate at the bottom of the Lower Cretaceous Yijun Formation in this area indicates the Yanshan Movement Phase B. The Zhiluo Formation and the Yijun Formation is disconformity, and the Upper Jurassic-Lower Cretaceous Anding and Fengfanghe formations between the former two were missing. The Mesozoic fossil assemblages of the Ordos Basin are briefly introduced below, along with a composite column diagram (Fig. 2) depicting the Mesozoic strata of the Ordos Basin.
实地考察内容包括鄂尔多斯盆地和黄土高原（图 1）的中生代地层学和古生物学。巍峨的秦岭发育在西安南部。本次调查从西安所在的关中盆地进入黄土高原，一直到铜川地区，最北端的榆林市曾是沙漠地区。调查的目的是了解鄂尔多斯盆地的中生代地层、古生物、古气候和构造运动。鄂尔多斯盆地从三叠纪中期的红层干热环境，到暖湿环境的大循环，再到早白垩世的干燥气候。具体来说，中三叠世二马营组的中下部为红层，上部开始出现煤层；上覆的中上三叠世延长组拥有丰富的油气资源，下部地层被一些学者称为铜川组，出土了大量昆虫化石。三叠系与侏罗系之交，该地区地势抬升，缺乏矿藏。早侏罗世形成了含煤地层的富县地层。侏罗纪中下统延安组为一套含煤地层，发育了中国最大的煤矿。侏罗系中-上统直罗地层为糯米岩矿床。志留系地层与下白垩统宜君地层底部砾岩之间的不整合，表明燕山运动 B 期，志留系地层与宜君地层为不整合，前两者之间缺失上侏罗世-下白垩统安定系和丰房河系地层。现将鄂尔多斯盆地中生代化石群简要介绍如下，并附鄂尔多斯盆地中生代地层综合柱状图（图 2）。
{"title":"Field trips of the 9th International Conference on Fossil Insects, Arthropods, and Amber—a overview on Mesozoic palaeontology and stratigraphy of the Ordos Basin","authors":"Xinneng Lian, YE-HAO Wang, Chenyang Cai, Di Huang","doi":"10.11646/palaeoentomology.7.2.1","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.1","url":null,"abstract":"The field trips will cover the Mesozoic stratigraphy and palaeontology of the Ordos Basin and the Loess Plateau (Fig. 1). The towering Qinling Mountains developed in the southern part of Xi’an. This investigation has entered the Loess Plateau from the Guanzhong Basin, where Xi’an is located, to the Tongchuan area, and the northernmost city of Yulin is a former desert area. The purpose of the investigation is to understand the Mesozoic strata, palaeontology, palaeoclimate and tectonic movements in the Ordos Basin. From the dry hot environment of the Red Bed in the mid-Triassic, it experienced a large cycle of warm and humid environment and then to the dry climate of the Early Cretaceous. Specifically, the middle and lower parts of the Middle Triassic Ermaying Formation are red beds, and coal seams begin to appear in the upper part of the formation; the overlying Middle-Upper Triassic Yanchang Formation has extensive oil and gas resources, and the lower strata are called by some authors the Tongchuan Formation and yielded a large number of insect fossils. At the turn of the Triassic and Jurassic, the area was elevated and lacked deposit. The Fuxian Formation of coal-bearing strata developed in the Early Jurassic. In the Lower-Middle Jurassic, the Yan’an Formation was a set of coal-bearing strata, which developed the largest coal mine in China. The Middle-Upper Jurassic Zhiluo Formation is a glutenite deposit. The unconformity between the Zhiluo Formation and the conglomerate at the bottom of the Lower Cretaceous Yijun Formation in this area indicates the Yanshan Movement Phase B. The Zhiluo Formation and the Yijun Formation is disconformity, and the Upper Jurassic-Lower Cretaceous Anding and Fengfanghe formations between the former two were missing. The Mesozoic fossil assemblages of the Ordos Basin are briefly introduced below, along with a composite column diagram (Fig. 2) depicting the Mesozoic strata of the Ordos Basin.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140684682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.12
Qiong Wu, L. Vilhelmsen, Michael S. Engel, Chungkun Shih, Dong Ren, T. Gao
Two new wasp species of Burmusculidae, Burmusculus abstrusus sp. nov. and Burmusculus primitivus sp. nov. are described from mid-Cretaceous amber of Myanmar. The new species are attributed to the family Burmusculidae and share the typical combination of diagnostic features of this family: forewing 2-M moderately short and distinctly angled with Rs+M and mesopleuron with no oblique sulcus. We observe variation in the presence/absence of plantulae on the tarsomeres of Burmusculus spp. and recommend that this character is included in species diagnoses in Burmusculidae. Tarsal plantulae are also observed in Pompilidae, the closest modern relatives of Burmusculidae.
{"title":"Two new species of Burmusculidae (Hymenoptera: Pompiloidea) in mid-Cretaceous amber from northern Myanmar","authors":"Qiong Wu, L. Vilhelmsen, Michael S. Engel, Chungkun Shih, Dong Ren, T. Gao","doi":"10.11646/palaeoentomology.7.2.12","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.12","url":null,"abstract":"Two new wasp species of Burmusculidae, Burmusculus abstrusus sp. nov. and Burmusculus primitivus sp. nov. are described from mid-Cretaceous amber of Myanmar. The new species are attributed to the family Burmusculidae and share the typical combination of diagnostic features of this family: forewing 2-M moderately short and distinctly angled with Rs+M and mesopleuron with no oblique sulcus. We observe variation in the presence/absence of plantulae on the tarsomeres of Burmusculus spp. and recommend that this character is included in species diagnoses in Burmusculidae. Tarsal plantulae are also observed in Pompilidae, the closest modern relatives of Burmusculidae.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 96","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140683272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.10
Yan‐Da Li, Erik Tihelka, Michael S. Engel, Fang-Yuan Xia, Di Huang, Ana Zippel, Kay Lwin Tun, G. Haug, Patrick Müller, Chenyang Cai
Loricera is a morphologically distinctive genus in Carabidae, exhibiting specialized feeding habits on springtails. Here we provide descriptions for both adult and larval specimens of Loricera from mid-Cretaceous Kachin amber. The adult specimen, named as Loricera carsteni Li, Tihelka & Cai sp. nov., is characterized by the posteriorly unconstricted pronotal disc with produced anterior pronotal angles, wide and almost orthogonal elytral humeri, and elytral surface with no more than ten punctate striae. The validity of previously reported Cretoloricera is also critically reviewed.
{"title":"Description of adult and larval Loricera from mid-Cretaceous Kachin amber (Coleoptera: Carabidae)","authors":"Yan‐Da Li, Erik Tihelka, Michael S. Engel, Fang-Yuan Xia, Di Huang, Ana Zippel, Kay Lwin Tun, G. Haug, Patrick Müller, Chenyang Cai","doi":"10.11646/palaeoentomology.7.2.10","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.10","url":null,"abstract":"Loricera is a morphologically distinctive genus in Carabidae, exhibiting specialized feeding habits on springtails. Here we provide descriptions for both adult and larval specimens of Loricera from mid-Cretaceous Kachin amber. The adult specimen, named as Loricera carsteni Li, Tihelka & Cai sp. nov., is characterized by the posteriorly unconstricted pronotal disc with produced anterior pronotal angles, wide and almost orthogonal elytral humeri, and elytral surface with no more than ten punctate striae. The validity of previously reported Cretoloricera is also critically reviewed.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.8
Yan Xue, Gang Li
A new spinicaudatan species Punctatestheria yaojieensis Xue & Li sp. nov. is described from the Middle–Upper Jurassic Yaojie Formation at Yaojie in Lanzhou City, Gansu Province, China. In addition to the only evenly distributed sparse puncta, the special ornamentation of Punctatestheria, the new species has setal remains on the growth lines in the ventral or middle part of the carapace, and puncta are arranged in a linear manner in the postero-ventral part of the carapace.
新种Punctatestheria yaojieensis Xue & Li sp.新种除了具有Punctatestheria特有的装饰特征--均匀分布的稀疏点状突起外，还在甲壳腹面或中部的生长线上有刚毛残留，点状突起呈线状排列在甲壳的后腹面。
{"title":"New spinicaudatan species of Middle–Upper Jurassic Yaojie Formation from Lanzhou, Gansu, northwest of China","authors":"Yan Xue, Gang Li","doi":"10.11646/palaeoentomology.7.2.8","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.8","url":null,"abstract":"A new spinicaudatan species Punctatestheria yaojieensis Xue & Li sp. nov. is described from the Middle–Upper Jurassic Yaojie Formation at Yaojie in Lanzhou City, Gansu Province, China. In addition to the only evenly distributed sparse puncta, the special ornamentation of Punctatestheria, the new species has setal remains on the growth lines in the ventral or middle part of the carapace, and puncta are arranged in a linear manner in the postero-ventral part of the carapace.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140685096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-19DOI: 10.11646/palaeoentomology.7.2.11
QI Feng, Chungkun Shih, Dong Ren, Yongjie Wang
A new genus and species, Creapsilocephala nagatomii gen. et sp. nov. assigned to the enigmatic family Apsilocephalidae, was described from Mid-Cretaceous Burmese amber. The details of mouthpart structures in the new species are well preserved, revealing the non-piercing mouthparts that comprise an elongated labrum and tube-like hypopharynx, a pair of slender pointed laciniae, one-segmented palp, and prolonged labium. According to the analysis of mouthpart features, the food tube of the new species is constituted by the labrum and hypopharynx, which supports a nectar-feeding habit. This new finding enriches the species diversity of Cretaceous Apsilocephalidae and enhances the knowledge of the early biological features in this family.
{"title":"A new genus and species of Apsilocephalidae (Asiloidea) with elongated mouthparts from mid-Cretaceous Burmese amber","authors":"QI Feng, Chungkun Shih, Dong Ren, Yongjie Wang","doi":"10.11646/palaeoentomology.7.2.11","DOIUrl":"https://doi.org/10.11646/palaeoentomology.7.2.11","url":null,"abstract":"A new genus and species, Creapsilocephala nagatomii gen. et sp. nov. assigned to the enigmatic family Apsilocephalidae, was described from Mid-Cretaceous Burmese amber. The details of mouthpart structures in the new species are well preserved, revealing the non-piercing mouthparts that comprise an elongated labrum and tube-like hypopharynx, a pair of slender pointed laciniae, one-segmented palp, and prolonged labium. According to the analysis of mouthpart features, the food tube of the new species is constituted by the labrum and hypopharynx, which supports a nectar-feeding habit. This new finding enriches the species diversity of Cretaceous Apsilocephalidae and enhances the knowledge of the early biological features in this family.","PeriodicalId":509429,"journal":{"name":"Palaeoentomology","volume":" November","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140682641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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