A New Fossil Snake-Fly Species from Baltic Amber (Raphidioptera: Inocelliidae) by Michael S. Engel

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The first Pacific insular orchid bee (Hymenoptera, Apidae): A new species of Eufriesea from the Islas Marías by Ricardo Ayala, Victor H. Gonzalez, Michael S. Engel

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A preliminary list of bee genera in the Kingdom of Saudi Arabia (Hymenoptera: Apoidea) by Michael S. Engel, Abdulaziz S. Alqarni, Mohammed A. Hannan

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Climate Change Influence on the Potential Distribution of Some Cavity-Nesting Bees (Hymenoptera: Megachilidae) by Mohammed Okely, Michael S. Engel, Mohamed A. Shebl

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New stenurothripid thrips from mid-Cretaceous Kachin amber (Thysanoptera, Stenurothripidae) by Dawei Guo, Michael S. Engel, Chungkun Shih, Dong Ren

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A new species of Astreptolabis in mid-Cretaceous amber from northern Myanmar, with the discovery of the first male of Astreptolabidinae (Dermaptera) by Yue Mao, Michael S. Engel, Dong Ren, Taiping Gao

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The first fossil representative of the extant clubtail dragonfly genus Lindenia from the mid-Miocene of Öhningen, Germany by MATHIEU BODERAU, MICHAEL S. ENGEL, IWAN STÖSSEL, ANDRE NEL

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New Earwigs from the Middle Jurassic Jiulongshan Formation of Northeastern China (Dermaptera) by Yuqing Yin, Chungkun Shih, Michael S. Engel, Dong Ren

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A Cretaceous sap beetle with specialized mandibles (Coleoptera : Nitidulidae) by Qian Zhao, Michael S. Engel, Diying Huang, Chenyang Cai

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A new species of Habrophorula from Vietnam and an updated key to species of the genus (Hymenoptera, Apidae) by Ngat Thi Tran, Michael S. Engel, Lien Thi Phuong Nguyen

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Mating and aggregative behaviors among basal hexapods in the Early Cretaceous. by Alba Sánchez-García, Enrique Peñalver, Xavier Delclòs, Michael S Engel

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Stingless bee classification and biology (Hymenoptera, Apidae): a review, with an updated key to genera and subgenera by Michael S. Engel, Claus Rasmussen, Ricardo Ayala, Favízia F. de Oliveira

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Specialized springtail predation by Loricera beetles: An example of evolutionary stasis across the K-Pg extinction by Yan-Da Li, Erik Tihelka, Michael S. Engel, Diying Huang, Chenyang Cai

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Termite Valkyries: Soldier-Like Alate Termites From the Cretaceous and Task Specialization in the Early Evolution of Isoptera by Corentin Jouault, Corentin Jouault, Corentin Jouault, Michael S. Engel, Michael S. Engel, Diying Huang, Juliette Berger, Philippe Grandcolas, Evgeny E. Perkovsky, Evgeny E. Perkovsky, Frédéric Legendre, André Nel

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A New Subgenus and Species of <i>Priochirus</i> from Mid-Cretaceous Kachin Amber (Coleoptera: Staphylinidae: Osoriinae) by Yuan Peng, Rixin Jiang, Chao Shi, Xiaoxuan Long, Michael S. Engel, Shuo Wang

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Modeling compositional heterogeneity resolves deep phylogeny of flowering plants by Yongli Wang, Yan-Da Li, Shuo Wang, Erik Tihelka, Michael S. Engel, Chenyang Cai

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A new species of the carpenter bee genus Xylocopa from the Sarawat Mountains in southwestern Saudi Arabia (Hymenoptera, Apidae) by Michael S. Engel, Abdulaziz S. Alqarni, Mohamed A. Shebl, Javaid Iqbal, Ismael A. Hinojosa-Díaz

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Independent wing reductions and losses among stick and leaf insects (Phasmatodea), supported by new Cretaceous fossils in amber by Hongru Yang, Michael S. Engel, Chungkun Shih, Fan Song, Yisheng Zhao, Dong Ren, Taiping Gao

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Geochemical Analysis of Two Samples of Bitumen from Jars Discovered on Muhut and Masirah Islands (Oman) by Jacques Connan, Michael H. Engel, Robert B. Jackson, Seth Priestman, Tom Vosmer, Alex Zumberge

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The bee genus Anthidiellum in Vietnam: descriptions of five new species and the first male of Anthidiellum coronum (Hymenoptera, Megachilidae) by Ngat Thi Tran, Michael S. Engel, Cuong Quang Nguyen, Duong Dinh Tran, Lien Thi Phuong Nguyen

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