Find out what mammals, insects, fish, plants, etc. are endangered here. Use the selection box below to view full lists by group.
The following is a list of all endangered insects.
| | Species Name | Scientific Name | Range |
|---|
| 1. | Acanthomyops latipes | Acanthomyops latipes | Michigan, Virgin Islands |
| 2. | Acanthomyops murphyi | Acanthomyops murphyi | Maryland |
| 3. | Acilius duvergeri | Acilius duvergeri | Algeria, Italy, Morocco, Portugal, Spain |
| 4. | Adam's Shadowdamsel | Drepanosticta adami | Sri Lanka |
| 5. | Aeshna yemenensis | Aeshna yemenensis | Yemen |
| 6. | Africallagma cuneistigma | Africallagma cuneistigma | Zimbabwe |
| 7. | Agabus discicollis | Agabus discicollis | Ethiopia |
| 8. | Agabus clypealis | Agabus clypealis | Denmark, Germany, Latvia, Poland, Russia, Sweden |
| 9. | Agabus hozgargantae | Agabus hozgargantae | Spain |
| 10. | Agriades zullichi | Agriades zullichi | Spain |
| 11. | Agriocnemis palaeforma | Agriocnemis palaeforma | Uganda |
| 12. | Alaena margaritacea | Alaena margaritacea | South Africa |
| 13. | Alajuela Knobtail | Epigomphus subsimilis | Costa Rica |
| 14. | Aloeides caledoni | Aloeides caledoni | South Africa |
| 15. | Aloeides carolynnae | Aloeides carolynnae | South Africa |
| 16. | Aloeides dentatis | Aloeides dentatis | Lesotho, South Africa |
| 17. | Aloeides egerides | Aloeides egerides | South Africa |
| 18. | Aloeides kaplani | Aloeides kaplani | South Africa |
| 19. | Aloeides lutescens | Aloeides lutescens | South Africa |
| 20. | Aloeides merces | Aloeides merces | South Africa |
| 21. | Aloeides nollothi | Aloeides nollothi | South Africa |
| 22. | Aloeides nubilus | Aloeides nubilus | South Africa |
| 23. | Aloeides pringlei | Aloeides pringlei | South Africa |
| 24. | Aloeides rossouwi | Aloeides rossouwi | South Africa |
| 25. | Amani Flatwing | Amanipodagrion gilliesi | Tanzania |
| 26. | Amatola Malachite | Chlorolestes apricans | South Africa (Eastern Cape Province) |
| 27. | American Burying Beetle | Nicrophorus americanus | Eastern Canada, USA Eastern States south to Florida, west to South Dakota and Texas |
| 28. | Ancient Greenling | Hemiphlebia mirabilis | Australia (Tasmania and Victoria) |
| 29. | Anisogomphus solitaris | Anisogomphus solitaris | Sri Lanka |
| 30. | Anoplolepis nuptialis | Anoplolepis nuptialis | South Africa |
| 31. | Antichthonidris bidentatus | Antichthonidris bidentatus | Argentina |
| 32. | Aphaenogaster bidentatus | Aphaenogaster bidentatus | United States |
| 33. | Arawacus aethesa | Arawacus aethesa | Brazil |
| 34. | Asiagomphus yayeyamensis | Asiagomphus yayeyamensis | Japan |
| 35. | Atlantic Helicopter | Mecistogaster pronoti | Brazil |
| 36. | Atrophaneura jophon | Atrophaneura jophon | Sri Lanka |
| 37. | Atrophaneura atropos | Atrophaneura atropos | Philippines |
| 38. | Atrophaneura luchti | Atrophaneura luchti | Indonesia |
| 39. | Atrophaneura schadenbergi | Atrophaneura schadenbergi | Philippines |
| 40. | Austin's Shadowdamsel | Drepanosticta austeni | Sri Lanka |
| 41. | Australian Ant | Nothomyrmecia macrops | Australia |
| 42. | Badplaas Black Millipede | Doratogonus furculifer | South Africa (Mpumalanga) |
| 43. | Bathurst Copper | Paralucia spinifera | Australia |
| 44. | Bayadera ishigakiana | Bayadera ishigakiana | Japan |
| 45. | Beautiful Petaltail | Petalura pulcherrima | Australia (Queensland) |
| 46. | Bekko Tombo | Libellula angelina | China, Japan, Korea |
| 47. | Biak Dark Crow | Euploea albicosta | Indonesia |
| 48. | Biak Threespot Crow | Euploea tripunctata | Indonesia |
| 49. | Biak Tiger | Parantica marcia | Indonesia |
| 50. | Black-backed Shadowdamsel | Palaemnema melanota | Costa Rica |
| 51. | Black-banded Bannerwing | Kalocora aurea | Colombia |
| 52. | Blackburn's Sphinx Moth | Manduca blackburni | Hawaii |
| 53. | Blue-and-orange Threadtail | Microneura caligata | Cuba |
| 54. | Boisduval's Blue Butterfly | Icaricia icarioides | California, Oregon |
| 55. | Boninagrion ezoin | Boninagrion ezoin | Japan |
| 56. | Bonthain Tiger | Parantica sulewattan | Indonesia |
| 57. | Bordered Knob-tipped Shadowdamsel | Drepanosticta submontana | Sri Lanka |
| 58. | Brenton Blue Butterfly | Orachrysops niobe | South Africa |
| 59. | Bristle-tipped Sanddargon | Progomphus tennesseni | Dominican Republic |
| 60. | Burmagomphus sivalikensis | Burmagomphus sivalikensis | India |
| 61. | Cacao Shadowdamsel | Palaemnema baltodanoi | Costa Rica |
| 62. | Callippe Silverspot Butterfly | Speyeria callippe callippe | California |
| 63. | Calopteryx hyalina | Calopteryx hyalina | Jordan, Syria |
| 64. | Calopteryx syriaca | Calopteryx syriaca | Israel, Israel (Palestinian Territory, Occupied), Jordan, Lebanon, Syria |
| 65. | Calopteryx exul | Calopteryx exul | Algeria, Morocco, Tunisia |
| 66. | Cape Stag Beetle | Colophon berrisfordi | South Africa |
| 67. | Cape Stag Beetle | Colophon cassoni | South Africa |
| 68. | Cape Stag Beetle | Colophon montisatris | South Africa |
| 69. | Cape Stag Beetle | Colophon primosi | South Africa |
| 70. | Cape Stag Beetle | Colophon barnardi | South Africa |
| 71. | Cape Stag Beetle | Colophon eastmani | South Africa |
| 72. | Cape Stag Beetle | Colophon haughtoni | South Africa |
| 73. | Cape Stag Beetle | Colophon thunbergi | South Africa |
| 74. | Cape Stag Beetle | Colophon whitei | South Africa |
| 75. | Cape Stag Beetle | Colophon cameroni | South Africa |
| 76. | Cape Stag Beetle | Colophon neli | South Africa |
| 77. | Cape Stag Beetle | Colophon stokoei | South Africa |
| 78. | Cape Stag Beetle | Colophon westwoodi | South Africa |
| 79. | Carson Wandering Skipper | Pseudocopaeodes eunus obscurus | California, Nevada |
| 80. | Cartago Knobtail | Epigomphus verticicornis | Costa Rica |
| 81. | Chalepoxenus brunneus | Chalepoxenus brunneus | Algeria, Morocco |
| 82. | Chalepoxenus kutteri | Chalepoxenus kutteri | France |
| 83. | Chalepoxenus muellerianus | Chalepoxenus muellerianus | Italy |
| 84. | Chalepoxenus spinosus | Chalepoxenus spinosus | Kazakhstan |
| 85. | Chalepoxenus tarbinskii | Chalepoxenus tarbinskii | Kyrgyzstan |
| 86. | Chalepoxenus tauricus | Chalepoxenus tauricus | Ukraine |
| 87. | Chalepoxenus tramieri | Chalepoxenus tramieri | Morocco |
| 88. | Chalepoxenus zabelini | Chalepoxenus zabelini | Turkmenistan |
| 89. | Cherokee Clubtail | Gomphus consanguis | United States |
| 90. | Chiriquita Shadowdamsel | Palaemnema chiriquita | Costa Rica |
| 91. | Chlorocnemis montana | Chlorocnemis montana | Malawi, Tanzania |
| 92. | Chlorocnemis abbotti | Chlorocnemis abbotti | Kenya, Malawi, Tanzania |
| 93. | Chlorocnemis pauli | Chlorocnemis pauli | Democratic Republic of Congo (Zaire), Kenya, Nigeria, Uganda |
| 94. | Chlorocypha molindica | Chlorocypha molindica | Burundi, Democratic Republic of Congo (Zaire), Republic of Congo, Rwanda, Uganda |
| 95. | Chlorocypha schmidti | Chlorocypha schmidti | Democratic Republic of Congo (Zaire), Republic of Congo, Tanzania |
| 96. | Chlorocypha bambtoni | Chlorocypha bambtoni | Angola |
| 97. | Chlorocypha jacksoni | Chlorocypha jacksoni | Democratic Republic of Congo (Zaire), Republic of Congo, Uganda |
| 98. | Chlorogomphus iriomotensis | Chlorogomphus iriomotensis | Japan |
| 99. | Chlorogomphus okinawensis | Chlorogomphus okinawensis | Japan |
| 100. | Chrysoritis cotrelli | Chrysoritis cotrelli | South Africa |
| 101. | Ciervo Scarab Beetle | Aegialia concinna | California |
| 102. | Coachelia Giant Sand Treader Cricket | Macrobaenetes valgum | California |
| 103. | Coenagriocnemis insularis | Coenagriocnemis insularis | Mauritius |
| 104. | Coenagrion syriacum | Coenagrion syriacum | Israel, Lebanon, Syria, Turkey |
| 105. | Coffin Cave Mold Beetle | Batrisodes texanus | Texas |
| 106. | Columbia Clubtail | Gomphus lynnae | Oregon, Washington |
| 107. | Comal Springs Dryopid Beetle | Stygoparnus comalensis | Texas |
| 108. | Comal Springs Riffle Beetle | Heterelmis comalensis | Texas |
| 109. | Comoro Friar | Amauris comorana | Indian Ocean (Comoro Islands) |
| 110. | Corsican Swallowtail | Papilio hospiton | Corsica, Sardinia |
| 111. | Crematogaster atilanica | Crematogaster atilanica | Guatemala |
| 112. | Crematogaster pilosa | Crematogaster pilosa | United States |
| 113. | Crenigomphus abyssinicus | Crenigomphus abyssinicus | Ethiopia |
| 114. | Crenigomphus denticulatus | Crenigomphus denticulatus | Ethiopia |
| 115. | Cresent Dune Scarab Beetle | Aegialia crescenta | Nevada |
| 116. | Crimson Hawaiian Damselfly | Megalagrion leptodemas | Hawaii |
| 117. | Cromwell Chafer Beetle | Prodontria lewisi | New Zealand |
| 118. | Dark Guest Ant | Anergates atratulus | Europe |
| 119. | Dark Knob-tipped Shadowdamselfly | Drepanosticta montana | Sri Lanka |
| 120. | David's Tiger | Parantica davidi | Philippines |
| 121. | Delhi Sands Flower-loving Fly | Rhaphiomidas terminatus abdominalis | California |
| 122. | Delta Green Ground Beetle | Elaphrus viridis | California |
| 123. | Deronectes aljibensis | Deronectes aljibensis | Spain |
| 124. | Deronectes depressicollis | Deronectes depressicollis | Spain |
| 125. | Deronectes ferrugineus | Deronectes ferrugineus | Portugal |
| 126. | Dickson's Copper | Oxychaeta dicksoni | South Africa |
| 127. | Diminutive Clubtail | Gomphus diminutus | Georgia, North Carolina, South Carolina, Tennessee |
| 128. | Donnelly's Knobtail | Epigomphus donnellyi | Mexico (Vera Cruz) |
| 129. | Doronomyrmex goesswaldi | Doronomyrmex goesswaldi | France, Switzerland |
| 130. | Doronomyrmex kutteri | Doronomyrmex kutteri | Germany |
| 131. | Doronomyrmex pacis | Doronomyrmex pacis | Switzerland |
| 132. | Doronomyrmex pocahontas | Doronomyrmex pocahontas | Canada |
| 133. | Dracula Ant | Adetomyrma venatrix | Madagascar |
| 134. | Edmund's Snaketail | Ophiogomphus edmundo | Georgia, North Carolina, Tennessee |
| 135. | El Segundo Blue Butterfly | Euphilotes battoides allyni | California |
| 136. | Elegant Malachite | Chlorolestes elegans | Malawi, Mozambique, South Africa, Zimbabwe |
| 137. | Elongate Shadowdamsel | Palaemnema gigantula | Costa Rica, Nicaragua |
| 138. | Elusive Sanddragon | Progomphus zephyrus | Dominican Republic |
| 139. | Epimyrma adlerzi | Epimyrma adlerzi | Greece |
| 140. | Epimyrma africana | Epimyrma africana | Algeria |
| 141. | Epimyrma algeriana | Epimyrma algeriana | Algeria |
| 142. | Epimyrma bernardi | Epimyrma bernardi | Spain |
| 143. | Epimyrma corsica | Epimyrma corsica | France |
| 144. | Epimyrma goridaghini | Epimyrma goridaghini | Russia |
| 145. | Epimyrma kraussei | Epimyrma kraussei | Italy |
| 146. | Epimyrma ravouxi | Epimyrma ravouxi | France |
| 147. | Epimyrma stumperi | Epimyrma stumperi | Switzerland |
| 148. | Epimyrma tamarae | Epimyrma tamarae | Georgia (Eurasia) |
| 149. | Epimyrma zaleskyi | Epimyrma zaleskyi | Czech Republic |
| 150. | Fabulous Green Sphinx Moth | Tinostoma smaragditis | Hawaii |
| 151. | Father Schoenig's Chocolate | Parantica schoenigi | Philippines |
| 152. | Flint's Knobtail | Epigomphus flinti | Mexico (Oaxaca) |
| 153. | Flying Earwig Hawaiian Damselfly | Megalagrion nesiotes | Hawaii |
| 154. | Formica dirksi | Formica dirksi | United States |
| 155. | Formica talbotae | Formica talbotae | United States |
| 156. | Formicoxenus chamberlini | Formicoxenus chamberlini | United States |
| 157. | Formicoxenus nitidulus | Formicoxenus nitidulus | Austria, Denmark, Finland, France, Germany, Italy, Norway, Poland, Sweden, Switzerland |
| 158. | Formicoxenus provancheri | Formicoxenus provancheri | Canada, United States |
| 159. | Formicoxenus quebecensis | Formicoxenus quebecensis | Canada |
| 160. | Formicoxenus sibiricus | Formicoxenus sibiricus | Russia |
| 161. | Franklin's Bumble Bee | Bombus franklini | California, Oregon |
| 162. | Frigate Island Giant Tenebrionid Beetle | Polposipus herculeanus | Indian Ocean (Seychelles) |
| 163. | Furhstorfer's Jungle Watcher | Hylaeothemis fruhstorferi | Sri Lanka |
| 164. | Giant Torrent Midge | Edwardsina gigantea | Australia |
| 165. | Graphium levassori | Graphium levassori | Indian Ocean (Comoro Islands) |
| 166. | Graphium sandawanum | Graphium sandawanum | Philippines |
| 167. | Graphium epaminondas | Graphium epaminondas | India |
| 168. | Graphium idaeoides | Graphium idaeoides | Philippines |
| 169. | Graphium meeki | Graphium meeki | Papua New Guinea, Solomon Islands |
| 170. | Graphium megaera | Graphium megaera | Philippines |
| 171. | Graphium procles | Graphium procles | Malaysia |
| 172. | Graphium stresemanni | Graphium stresemanni | Indonesia |
| 173. | Graphoderus bilineatus | Graphoderus bilineatus | Asia, Europe, Middle East |
| 174. | Graptodytes delectus | Graptodytes delectus | Spain (Canary Islands) |
| 175. | Ground Beetle | Rhadine exilis | Texas |
| 176. | Ground Beetle | Rhadine infernalis | Texas |
| 177. | Guatemalan Knobtail | Epigomphus clavatus | Guatemala |
| 178. | Harpagoxenus canadensis | Harpagoxenus canadensis | Canada, United States |
| 179. | Harpagoxenus canadensis | Harpagoxenus canadensis | Canada, United States |
| 180. | Harpagoxenus sublaevis | Harpagoxenus sublaevis | Austria, France, Germany, Italy, Switzerland |
| 181. | Harpgoxenus zaisanicus | Harpgoxenus zaisanicus | Mongolia |
| 182. | Helotes Mold Beetle | Batrisodes venyivi | Texas |
| 183. | Hemicordulia ogasawarensis | Hemicordulia ogasawarensis | Japan |
| 184. | Hemicordulia okinawensis | Hemicordulia okinawensis | Japan |
| 185. | Hemisaga elongata | Hemisaga elongata | Australia |
| 186. | Hemisaga lucifer | Hemisaga lucifer | Australia |
| 187. | Hemisaga vepreculae | Hemisaga vepreculae | Australia |
| 188. | Hermes Copper | Lycaena hermes | California, Mexico |
| 189. | Higgin's Anomalous Blue | Polyommatus galloi | Italy |
| 190. | Hine's Emerald Dragonfly | Somatochlora hineana | Illinois, Indiana, Ohio, Wisconsin |
| 191. | Hipparchia azorina | Hipparchia azorina | Portugal |
| 192. | Hipparchia maderensis | Hipparchia maderensis | Portugal |
| 193. | Hipparchia occidentalis | Hipparchia occidentalis | Portugal |
| 194. | Hispaniolan Malachite | Phylolestes ethelae | Dominican Republic, Haiti |
| 195. | Hodges' Clubtail | Gomphus hodgesi | Alabama, Florida, Louisiana, Mississippi |
| 196. | Horned Knobtail | Epigomphus corniculatus | Costa Rica |
| 197. | Humped Knobtail | Epigomphus camelus | Costa Rica |
| 198. | Hungerford's Crawling Water Beetle | Brychius hungerfordi | Canada, Michigan |
| 199. | Hydrotarsus compunctus | Hydrotarsus compunctus | Spain (Canary Islands) |
| 200. | Hydrotarsus pilosus | Hydrotarsus pilosus | Spain (Canary Islands) |
| 201. | Idaho Point-headed Grasshopper | Acrolophitus pulchellus | Idaho |
| 202. | Ideopsis hewitsonii | Ideopsis hewitsonii | Indonesia |
| 203. | Ideopsis oberthurii | Ideopsis oberthurii | Indonesia |
| 204. | Illidge's Ant-blue (Butterfly) | Acrodipsas illidgei | Australia |
| 205. | Indolestes boninensis | Indolestes boninensis | Japan |
| 206. | Ischnura abyssinica | Ischnura abyssinica | Ethiopia |
| 207. | Ischnura gemina | Ischnura gemina | California |
| 208. | Ixalodectes flectocercus | Ixalodectes flectocercus | Australia |
| 209. | Jamaican Giant Swallowtail Butterfly | Pterourus homerus | Jamaica |
| 210. | Jamaican Hypolestes | Hypolestes clara | Jamaica |
| 211. | Joiceya praeclarus | Joiceya praeclarus | Brazil |
| 212. | Jungle Threadtail | Elattoneura caesia | Sri Lanka |
| 213. | Karner Blue Butterfly  | Lycaeides melissa samuelis | Canada (Ontario), Illinois, Indiana, Massachusetts, Michigan, Minnesota, New Hampshire, New York, Ohio, Pennsylvania, Wisconsin |
| 214. | Kawanphila pachomai | Kawanphila pachomai | Australia |
| 215. | Kelso Giant Sand Treader Cricket | Macrobaenetes kelsoensis | California |
| 216. | Kelso Jerusalem Cricket | Ammopelmatus kelsoensis | California |
| 217. | Kretschmarr Cave Mold Beetle | Texamaurops reddelli | Texas |
| 218. | Kubusi Featherlegs | Metacnemis valida | South Africa (Eastern Cape Province) |
| 219. | Kuekenthal's Yellow Tiger | Parantica kuekenthali | Indonesia |
| 220. | Laguna Mountains Skipper | Pyrgus ruralis lagunae | California |
| 221. | Lange's Metalmark Butterfly | Apodemia mormo langei | California |
| 222. | Laricis Tree Cricket | Oecanthus laricis | Michigan, Ohio |
| 223. | Lepidochrysops lotana | Lepidochrysops lotana | South Africa |
| 224. | Lepidochrysops badhami | Lepidochrysops badhami | South Africa |
| 225. | Lepidochrysops balli | Lepidochrysops balli | South Africa |
| 226. | Lepidochrysops jefferyi | Lepidochrysops jefferyi | South Africa |
| 227. | Lepidochrysops littoralis | Lepidochrysops littoralis | South Africa |
| 228. | Lepidochrysops loewensteini | Lepidochrysops loewensteini | South Africa |
| 229. | Lepidochrysops oosthuizeni | Lepidochrysops oosthuizeni | Lesotho, South Africa |
| 230. | Lepidochrysops outeniqua | Lepidochrysops outeniqua | South Africa |
| 231. | Lepidochrysops penningtoni | Lepidochrysops penningtoni | South Africa |
| 232. | Lepidochrysops pephredo | Lepidochrysops pephredo | South Africa |
| 233. | Lepidochrysops poseidon | Lepidochrysops poseidon | South Africa |
| 234. | Lepidochrysops pringlei | Lepidochrysops pringlei | South Africa |
| 235. | Lepidochrysops quickelbergei | Lepidochrysops quickelbergei | South Africa |
| 236. | Lepidochrysops swanepoeli | Lepidochrysops swanepoeli | South Africa |
| 237. | Lepidochrysops titei | Lepidochrysops titei | South Africa |
| 238. | Lepidochrysops victori | Lepidochrysops victori | South Africa |
| 239. | Lepidochrysops wykehami | Lepidochrysops wykehami | South Africa |
| 240. | Leptogomphus yayeyamensis | Leptogomphus yayeyamensis | Japan |
| 241. | Leptothorax buschingeri | Leptothorax buschingeri | Switzerland |
| 242. | Leptothorax duloticus | Leptothorax duloticus | United States |
| 243. | Leptothorax faberi | Leptothorax faberi | Canada |
| 244. | Leptothorax minutissimus | Leptothorax minutissimus | United States |
| 245. | Limon Knobtail | Epigomphus houghtoni | Costa Rica |
| 246. | Lokia coryndoni | Lokia coryndoni | Uganda |
| 247. | Lompoc Grasshopper | Trimerotropis occulens | California |
| 248. | Long-horned Beetle | Macrodontia cervicornis | Brazil, Peru |
| 249. | Lord Howe Island Stick-insect | Dryococelus australis | Australia |
| 250. | Lotis Blue Butterfly | Lycaeides argyrognomon lotis | California |
| 251. | Luzon Peacock Swallowtail | Papilio chikae | Philippines |
| 252. | Lycaena ottomanus | Lycaena ottomanus | Albania, Bosnia and Herzegovina, Croatia, Greece, Montenegro, Republic of Macedonia, Turkey |
| 253. | Lyrate Grappletail | Heliogomphus lyratus | Sri Lanka |
| 254. | Macromia flinti | Macromia flinti | Sri Lanka |
| 255. | Macromia kubokaiya | Macromia kubokaiya | Japan |
| 256. | Macromia margarita | Macromia margarita | United States |
| 257. | Macromia splendens | Macromia splendens | France, Portugal, Spain |
| 258. | Macromidia ishidai | Macromidia ishidai | Japan |
| 259. | Madagascan Friar | Amauris nossima | Indian Ocean (Comoros), Madagascar, Mayotte |
| 260. | Madeira Brimstone (Butterfly) | Gonepteryx maderensis | Portugal (Madeira) |
| 261. | Madeiran Large White | Pieris wollastoni | Portugal (Madeira) |
| 262. | Major Black Millipede | Doratogonus major | South Africa (KwaZulu-Natal) |
| 263. | Mauritian Friar | Amauris phoedon | Mauritius |
| 264. | Mauve Bluet | Proischnura polychromatica | South Africa (Western Cape Province) |
| 265. | Maya Knobtail | Epigomphus maya | Belize |
| 266. | Meladema imbricata | Meladema imbricata | Spain (Canary Islands) |
| 267. | Merry Shadowdamsel | Drepanosticta hilaris | Sri Lanka |
| 268. | Metropolitan Redspot | Phyllopetalia altarensis | Chile |
| 269. | Micromacromia miraculosa | Micromacromia miraculosa | Tanzania |
| 270. | Middlekauf's Shieldback Katydid | Idiostatus middlekaufi | California |
| 271. | Milagros' Tiger | Parantica milagros | Philippines |
| 272. | Minor Black Millipede | Doratogonus minor | South Africa (KwaZulu-Natal) |
| 273. | Mitchell's Satyr Butterfly | Neonympha mitchellii | Indiana, Michigan, New Jersey, North Carolina, Ohio |
| 274. | Moerner's Swallowtail Butterfly | Papilio moerneri | Papua New Guinea |
| 275. | Molokai Damselfly | Megalagrion molokaiense | Hawaii |
| 276. | Montane Dancing-jewel | Platycypha amboniensis | Kenya |
| 277. | Mt. Hermon June Beetle | Polyphylla barbata | California |
| 278. | Murphy's Crow | Euploea caespes | Indonesia |
| 279. | Nanodectes bulbicercus | Nanodectes bulbicercus | Australia |
| 280. | Natterer's Longwing | Heliconius nattereri | Brazil |
| 281. | Nietner's Grappletail | Heliogomphus nietneri | Sri Lanka |
| 282. | Nirodia belphegor | Nirodia belphegor | Brazil |
| 283. | Northern Black Millipede | Doratogonus septentrionalis | South Africa (KwaZulu-Natal) |
| 284. | Notogomphus cottarellii | Notogomphus cottarellii | Ethiopia |
| 285. | Notogomphus maathaiae | Notogomphus maathaiae | Kenya |
| 286. | Notogomphus ruppeli | Notogomphus ruppeli | Ethiopia |
| 287. | Oahu Deceptor Bush Cricket | Leptogryllus deceptor | Hawaii |
| 288. | Ohlone Tiger Beetle | Cicindela ohlone | California |
| 289. | Oligoaeschna kunigamiensis | Oligoaeschna kunigamiensis | Japan |
| 290. | Oreocnemis phoenix | Oreocnemis phoenix | Malawi |
| 291. | Ornithoptera meridionalis | Ornithoptera meridionalis | Indonesia, Papua New Guinea |
| 292. | Pachysaga strobila | Pachysaga strobila | Australia |
| 293. | Palos Verdes Blue Butterfly | Glaucopsyche lygdamus palosverdesensis | California |
| 294. | Papilio aristophontes | Papilio aristophontes | Indian Ocean (Comoros) |
| 295. | Paulson's Knobtail | Epigomphus paulsoni | Mexico (Chiapas) |
| 296. | Pemba Featherleg | Platycnemis pembipes | Tanzania |
| 297. | Piedmont Anomalous Blue | Polyommatus humedasae | Italy |
| 298. | Pitt Island Longhorn Beetle | Xylotoles costatus | New Zealand |
| 299. | Platycypha pinheyi | Platycypha pinheyi | Democratic Republic of Congo (Zaire), Tanzania |
| 300. | Poecilmitis rileyi | Poecilmitis rileyi | South Africa |
| 301. | Poecilmitis swanepoeli | Poecilmitis swanepoeli | South Africa |
| 302. | Polyommatus dama | Polyommatus dama | Turkey |
| 303. | Pomace Fly | Drosophila aglaia | Hawaii |
| 304. | Pomace Fly | Drosophila differens | Hawaii |
| 305. | Pomace Fly | Drosophila hemipeza | Hawaii |
| 306. | Pomace Fly | Drosophila heteroneura | Hawaii |
| 307. | Pomace Fly | Drosophila montgomeryi | Hawaii |
| 308. | Pomace Fly | Drosophila musaphila | Hawaii |
| 309. | Pomace Fly | Drosophila neoclavisetae | Hawaii |
| 310. | Pomace Fly | Drosophila obatai | Hawaii |
| 311. | Pomace Fly | Drosophila ochrobasis | Hawaii |
| 312. | Pomace Fly | Drosophila substenoptera | Hawaii |
| 313. | Pomace Fly | Drosophila tarphytrichia | Hawaii |
| 314. | Port Conception Jerusalem Cricket | Ammopelmatus muwu | California |
| 315. | Prairie Sphinx Moth | Euproserpinus wiesti | United States |
| 316. | Pronged Clubtail | Gomphus graslinii | France, Portugal, Spain |
| 317. | Psacadonotus insulanus | Psacadonotus insulanus | Australia |
| 318. | Pseudagrion vumbaense | Pseudagrion vumbaense | Zimbabwe |
| 319. | Pseudagrion inopinatum | Pseudagrion inopinatum | South Africa |
| 320. | Puritan Tiger Beetle | Cicindela puritana | Connecticut, Maryland, Massachusetts, New Hampshire, Vermont |
| 321. | Purple Skimmer | Libellula jesseana | Florida |
| 322. | Purple Threadtail | Protoneura dunklei | Dominican Republic |
| 323. | Pygmy Hog Sucking Louse | Haematopinus oliveri | India |
| 324. | Queen Alexandra's Birdwing Butterfly | Ornithoptera alexandrae | Papua New Guinea |
| 325. | Queen Malachite | Ecchlorolestes nylephtha | South Africa |
| 326. | Quino Checkerspot Butterfly | Euphydryas editha quino | California, Mexico |
| 327. | Ramajana Bambootail | Disparoneura ramajana | Sri Lanka |
| 328. | Red Chaser | Libellula pontica | Armenia, Iran, Iraq, Israel, Jordan, Kyrgyzstan, Syria, Turkey |
| 329. | Red Jungle-skimmer | Hadrothemis scabrifrons | Kenya, Malawi, Mozambique, Tanzania, Zambia, Zimbabwe |
| 330. | Red-legged Threadtail | Protoneura sanguinipes | Dominican Republic |
| 331. | Relict Himalayan Dragonfly | Epiophlebia laidlawi | India, Nepal |
| 332. | Reventazon Shadowdamsel | Palaemnema reventazoni | Costa Rica |
| 333. | Rhantus alutaceus | Rhantus alutaceus | New Caledonia |
| 334. | Rhinocypha uenoi | Rhinocypha uenoi | Japan |
| 335. | Rhinocypha ogasawarensis | Rhinocypha ogasawarensis | Japan |
| 336. | Rhinocypha hageni | Rhinocypha hageni | Philippines |
| 337. | Rhipidolestes okinawanus | Rhipidolestes okinawanus | Japan |
| 338. | Rhithrodytes agnus | Rhithrodytes agnus | Portugal |
| 339. | Ris's Sanddragon | Progomphus risi | Guatemala, Mexico |
| 340. | Risiocnemis seidenschwarzi | Risiocnemis seidenschwarzi | Philippines |
| 341. | Rivulet Tiger (Dragonfly) | Gomphidia pearsoni | Sri Lanka |
| 342. | Ruby-legged Black Millipede | Doratogonus rubipodus | South Africa (KwaZulu-Natal) |
| 343. | Sacramento Anthicid Beetle | Anthicus sacramento | United States |
| 344. | Saint Helena Earwig | Labidura herculeana | St. Helena |
| 345. | Salt Creek Tiger Beetle | Cicindela nevadica lincolniana | Nebraska |
| 346. | San Bruno Elfin Butterfly | Callophrys mossii bayensis | California |
| 347. | Santa Monica Mountains Grasshopper | Trimerotropis occidentaloides | California |
| 348. | Santa Monica Shieldback Katydid | Aglaothorax longipennis | United States |
| 349. | Scarlet Bluet | Enallagma pictum | Connecticut, Maine, Massachusetts, New Jersey, New York, Rhode Island |
| 350. | Schaus Swallowtail | Heraclides aristodemus ponceanus | Florida |
| 351. | Schayer's Grasshopper | Schayera baiulus | Australia |
| 352. | Schneider's Surprise | Tiradelphe schneideri | Solomon Islands |
| 353. | Seychelles Crow | Euploea mitra | Indian Ocean (Seychelles) |
| 354. | Shimaakane Dragonfly | Boninthemis insularis | Japan |
| 355. | Sierra Nevada Blue | Polyommatus golgus | Spain |
| 356. | Sinhalestes orientalis | Sinhalestes orientalis | Sri Lanka |
| 357. | Smith's Blue Butterfly | Euphilotes enoptes smithi | California |
| 358. | Smoky-winged Threadtail | Elattoneura leucostigma | Sri Lanka |
| 359. | Southern Damselfly | Coenagrion mercuriale | Africa, Europe |
| 360. | Southern Snaketail | Ophiogomphus australis | Louisiana, Mississippi |
| 361. | Sri Lanka Forktail | Macrogomphus lankanensis | Sri Lanka |
| 362. | Sri Lanka Grappletail | Heliogomphus ceylonicus | Sri Lanka |
| 363. | Sri Lankan Relict Ant | Aneuretus simoni | Sri Lanka |
| 364. | Strong Black Millipede | Doratogonus infragilis | South Africa (KwaZulu-Natal) |
| 365. | Sugarfoot Moth Fly | Nemapalpus nearcticus | Florida |
| 366. | Sydney Hawk Dragonfly | Austrocordulia leonardi | Australia (New South Wales) |
| 367. | Sympetrum nigrifemur | Sympetrum nigrifemur | Portugal, Spain (Canary Islands) |
| 368. | Tasmanian Torrent Midge | Edwardsina tasmaniensis | Australia (Tasmania) |
| 369. | Tepui Bannerwing | Chalcothore montgomeryi | Venezuela |
| 370. | Tetrathemis denticauda | Tetrathemis denticauda | Democratic Republic of Congo (Zaire), Uganda |
| 371. | Tetrathemis ruwensoriensis | Tetrathemis ruwensoriensis | Uganda |
| 372. | Tetrathemis yerburii | Tetrathemis yerburii | Sri Lanka |
| 373. | Thalassothemis marchali | Thalassothemis marchali | Mauritius |
| 374. | Throscodectes xederoides | Throscodectes xederoides | Australia |
| 375. | Throscodectes xiphos | Throscodectes xiphos | Australia |
| 376. | Thylacine Darner | Acanthaeschna victoria | Australia |
| 377. | Timor Yellow Tiger | Parantica timorica | Indonesia |
| 378. | Tooth Cave Ground Beetle | Rhadine persephone | Texas |
| 379. | Torreya Pygmy Grasshopper | Tettigidea empedonepia | Florida |
| 380. | Trithemis nigra | Trithemis nigra | Sao Tome and Principe |
| 381. | Turkish Red Damsel | Ceriagrion georgifreyi | Greece, Syria, Turkey |
| 382. | Tuxtla Knobtail | Epigomphus sulcatistyla | Mexico (Vera Cruz) |
| 383. | Twin-striped Clubtail | Gomphus geminatus | Alabama, Florida, Georgia |
| 384. | Uncompahgre Fritillary Butterfly | Boloria acrocnema | Colorado |
| 385. | Urothemis thomasi | Urothemis thomasi | Oman |
| 386. | Volcano Knobtail | Epigomphus echeverrii | Costa Rica |
| 387. | Wallace's Golden Birdwing Butterfly | Ornithoptera croesus | Indonesia |
| 388. | Wallengren's Copper | Trimenia wallengrenii | South Africa |
| 389. | Westfall's Knobtail | Epigomphus westfalli | Nicaragua |
| 390. | Wijaya's Scissortail Clubtail | Microgomphus wijaya | Sri Lanka |
| 391. | Zayante Band-winged Grasshopper | Trimerotropis infantilis | California |
| 392. | Zerene Fritillary | Speyeria zerene | California |
| 393. | Zululand Black Millipede | Doratogonus zuluensis | South Africa (KwaZulu-Natal) |
