# 2009 in arthropod paleontology

This list of fossil arthropods described in 2009 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods that have been described during the year 2009, as well as other significant discoveries and events related to arthropod paleontology that occurred.

## Radiodonts

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Schinderhannes | gen et sp nov | Valid | Kühl, Briggs, & Rust | Lower Devonian | Hunsrück Slate | Germany | | |

## Arachnids

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Palaeoperenethis | Gen. et sp. nov | Valid | Selden & Penney | Eocene Ypresian | Okanagan Highlands Horsefly Shales | Canada British Columbia | A pisaurid fishing spider | |

## Crustaceans

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Chabardella | Gen. et sp. nov | Valid | Racheboeuf, Schram & Vidal | Late Carboniferous Stephanian | Montceau-les-Mines | France | A mantis shrimp, type species is C. spinosa | |
| Sottyella | Gen. et sp. nov | Valid | Racheboeuf, Schram & Vidal | Late Carboniferous Stephanian | Montceau-les-Mines | France | A phreatoicidean isopod, type species is S. montcellensis | |

## Insects

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes | Images |
| Agulla mineralensis | sp nov | Valid | Engel | Late Barstovian | Stewart Valley Group | USA | only described Neogene snakefly fossil | |
| Allorapisma | gen et sp nov | Valid | Makarkin & Archibald | Ypresian | Tom Thumb Tuff member Klondike Mountain Formation | USA | | Allorapisma chuorum |
| Apis (Cascapis) nearctica | sp nov | Valid | Engel, Hinojosa-Diaz, & Rasnitsyn | Middle Miocene | | USA | The first fossil Apis from North America. | |
| Aspidopleura | gen et sp nov | Valid | Gibson | Eocene | Baltic amber | Europe | A Eupelmid wasp | Aspidopleura baltica |
| Brevivulva | gen et sp nov | Valid | Gibson | Eocene | Baltic amber | Europe | A Eupelmid wasp | Brevivulva electroma |
| Cimbrophlebia brooksi | sp nov | Valid | Archibald | Ypresian | Tom Thumb Tuff member Klondike Mountain Formation | USA | A Cimbrophlebiid scorpionfly | |
| Cimbrophlebia flabelliformis | sp nov | Valid | Archibald | Ypresian | McAbee Fossil Beds | Canada | A mecopteran | |
| Cimbrophlebia leahyi | sp nov | Valid | Archibald | Ypresian | McAbee Fossil Beds | Canada | A mecopteran | |
| Cimbrophlebia westae | sp nov | Valid | Archibald | Ypresian | Tom Thumb Tuff member Klondike Mountain Formation | USA | A mecopteran | |
| Ctenobethylus oblongiceps | comb nov | Jr synonym | (Wheeler, 1915) | Lutetian | Baltic amber | Russia | Fossil Dolichoderine ant. Moved from Iridomyrmex oblongiceps to Eldermyrmex oblongiceps in 2011. | Eldermyrmex oblongiceps |
| Denaeaspis | gen et sp nov | valid | Chaboo & Engel | Eocene Bridgerian | Green River Formation Parachute Creek Member | USA Colorado | An Imatidiini tribe Cassidine tortoise beetle. The type species is D. chelonopsis | |
| Eosacantha | gen et sp nov | valid | Chaboo & Engel | Eocene Bridgerian | Green River Formation Parachute Creek Member | USA Colorado | An Imatidiini tribe Cassidine tortoise beetle. The type species is E. delocranioides | |
| Gesomyrmex germanicus | sp nov | Valid | Dlussky, Wappler, & Wedmann | Lutetian | Eckfeld Maar | Germany | A Formicinae ant | Gesomyrmex germanicus |
| Gesomyrmex pulcher | sp nov | Valid | Dlussky, Wappler, & Wedmann | Lutetian | Messel Formation | Germany | A Formicinae ant | Gesomyrmex pulcher |
| Leptofoenus pittfieldae | sp nov | Valid | Engel | Burdigalian | Dominican amber | Dominican Republic | A Pteromalid wasp | Leptofoenus pittfieldae |
| Metapelma archetypon | sp nov | Valid | Gibson | Eocene | Baltic amber | Europe | A Eupelmid wasp | Metapelma archetypon |
| Neanaperiallus | gen et sp nov | Valid | Gibson | Eocene | Baltic amber | Europe | A Eupelmid wasp | Neanaperiallus masneri |
| Nesagapostemon | gen et sp nov | Valid | Engel | Burdigalian | Dominican amber | Dominican Republic | A Halictid bee | Nesagapostemon moronei |
| Nymphes georgei | sp nov | Valid | Archibald, Makarkin, & Ansorge | Ypresian | Tom Thumb Tuff member Klondike Mountain Formation | USA | A Nymphid neuropteran | Nymphes georgei |
| Oligochlora semirugosa | sp nov | Valid | Engel | Burdigalian | Dominican amber | Dominican Republic | A Halictid bee | Oligochlora semirugosa |
| Paleohabropoda | Gen et sp nov | valid | Michez & Ramont | Thanetian | Menat Formation | France | An anthophorine bee | Paleohabropoda oudardi |
| Paratrechina pygmaea | Comb nov | Jr synonym | (Mayr) | Middle Eocene | European amber | Europe | A formicine ant, new combination for Prenolepis pygmaea; jr synonym of Nylanderia pygmaea | Nylanderia pygmaea |
| Principiala rudgwickensis | sp nov | valid | Jepson, Makarkin, & Jarzembowski | Barremian | Upper Weald Clay | England | An Ithonidae lacewing, a second species of Principiala | |
| Proceratium eocenicum | Sp nov | Valid | Dlussky | Late Eocene | Baltic amber | Russia | A ponerine ant | Proceratium eocenicum |
| Pronymphes hoffeinsorum | Sp nov | Valid | Archibald, Makarkin, Ansorge | Priabonian | Baltic amber | Russia | A Nymphid neuropteran | |
| Protomyrmica | Gen et sp nov | valid | Dlussky & Radchenko | Priabonian | Baltic amber | Russia | A myrmicine ant | Protomyrmica atavia |
| Termitaradus mitnicki | sp nov | Valid | Engel | Burdigalian | Dominican amber | Dominican Republic | A termite bug | Termitaradus mitnicki |
| Tetraponera groehni | sp nov | Valid | Dlussky | Pribonian | Baltic amber | Russia | A Pseudomyrmecine ant | Tetraponera groehni |

## Trilobites

| Name | Novelty | Status | Authors | Age | Unit | Location | Notes |
| Alperillaenus | Gen. et sp. nov | Valid | Pour, Popov & Vinogradova | Ordovician (Darriwilian) | | Kazakhstan | A member of the family Illaenidae. Genus includes new species A. intermedius. |
| Ammagnostus antarcticus | Sp. nov | Valid | Bentley, Jago & Cooper | Cambrian | Goyder Formation Spurs Formation | Antarctica  Australia | |
| Asaphellus stubbsi | Sp. nov | Valid | Fortey | Ordovician (Tremadocian) | Fezouata Formation | Morocco | |
| Bhargavia | Gen. et sp. et comb. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India  United States | A member of the family Ellipsocephalidae. The type species is B. prakritika; genus also includes "Syspacephalus" obscurus Palmer and Halley (1979). |
| Bienvillia chaya | Sp. nov | Valid | Waisfeld & Vaccari | Ordovician (Floian) | Suri Formation | Argentina | |
| Catillicephalina | Gen. et comb. nov | Valid | Bentley, Jago & Cooper | Cambrian | Spurs Formation | Antarctica | A new genus for "Catillicephala" glasgowensis Jago & Cooper (2005). |
| Damiraspis | Gen. et sp. nov | Valid | Pour, Popov & Vinogradova | Ordovician (Darriwilian) | | Kazakhstan | An asaphid trilobite. Genus includes new species D. margiana. |
| Degamella lingulata | Sp. nov | Valid | Zhou & Zhou | Ordovician | Pagoda Formation | China | A member of the family Cyclopygidae. |
| Dividuagnostus tortelloi | Sp. nov | Valid | Waisfeld & Vaccari | Ordovician (Floian) | Suri Formation | Argentina | |
| Doremataspis contracta | Sp. nov | Valid | Bentley, Jago & Cooper | Cambrian | Spurs Formation | Antarctica | |
| Farasaphus | Gen. et sp. nov | Valid | Pour, Popov & Vinogradova | Ordovician (Darriwilian) | | Kazakhstan | An asaphid trilobite. Genus includes new species F. singularis. |
| Gunnia smithi | Sp. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India | A member of the family Ptychopariidae. |
| Haydenaspis | Gen. et sp. nov | Valid | Peng et al. | Cambrian Stage 4 | Parahio Formation | India | A member of the family Dinesidae. The type species is H. parvatya. |
| Himalisania | Gen. et comb. nov | Valid | Peng et al. | Cambrian (Guzhangian) | Karsha Formation Kurgiakh Formation | India  China? | A member of the family Lisaniidae. The type species is "Eoshengia" sudani Jell & Hughes (1997). |
| Hypermecaspis edselbrussai | Sp. nov | Valid | Waisfeld & Vaccari | Ordovician (Floian) | Suri Formation | Argentina | |
| Jamrogia | Gen. et sp. nov | Valid | Bentley, Jago & Cooper | Cambrian | Spurs Formation | Antarctica | A member of the new family Jamrogiidae. Genus includes new species J. jamrogensis. |
| Kaotaia prachina | Sp. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India | A member of the family Ptychopariidae. |
| Koldinia odelli | Sp. nov | Valid | Peng et al. | Cambrian (Guzhangian) | Karsha Formation | India | Possibly a member of the family Anomocaridae. |
| Litzicurus | Gen. et sp. et comb. nov | Valid | Adrain, McAdams & Westrop | Early Ordovician | | United States | Possibly a member of Hystricuridae. Genus includes new species L. shawi, as well as "Pseudohystricurus" orbus Ross (1953). |
| Microparia (Quadratapyge) obsoleta | Sp. nov | Valid | Zhou & Zhou | Ordovician | Pagoda Formation | China | A member of the family Cyclopygidae. |
| Monanocephalus liquani | Sp. nov | Valid | Peng et al. | Wuliuan | Hsuchuang Formation | China | A member of the family Ptychopariidae. |
| Nileus jafari | Sp. nov | Valid | Pour & Turvey | Ordovician (Dapingian to early Darriwilian) | Shirgesht Formation | Iran | A member of the family Nileidae. |
| Proasaphiscus simoni | Sp. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India | A member of the family Proasaphiscidae. |
| Probowmania bhatti | Sp. nov | Valid | Peng et al. | Cambrian Stage 4 | Parahio Formation | India | A member of the family Ptychopariidae. |
| Prozacanthoides lahiri | Sp. nov | Valid | Peng et al. | Cambrian Stage 4 | Parahio Formation | India | A member of the family Zacanthoididae. |
| Psalikilus hestoni | Sp. nov | Valid | Adrain, McAdams & Westrop | Early Ordovician | | United States | |
| Sudanomocarina sinindica | Sp. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India | A member of the family Proasaphiscidae. |
| Torifera jelli | Sp. nov | Valid | Peng et al. | Cambrian (Guzhangian) | Karsha Formation Kurgiakh Formation | India | A member of the family Alsataspididae. |
| Warburtonella | Gen. et sp. nov | Valid | Sun & Jago | Cambrian (Furongian) | Warburton Basin | Australia | A polymerid trilobite. Genus includes new species W. coongiensis. |
| Xingrenaspis parthiva | Sp. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India | A member of the family Ptychopariidae. |
| Xingrenaspis shyamalae | Sp. nov | Valid | Peng et al. | Wuliuan | Parahio Formation | India | A member of the family Ptychopariidae. |