Showing taxa found in every MD county except one (and listing the missing county). Note that MBP has not ingested all data from all available sources, especially publications and collections. It is possible to find these records, especially Baltimore City records, by reviewing iNaturalist and/or eBird.

1. Cloudless Sulphur (Phoebis sennae)
   Missing from Allegany
2. Sweet Gum (Liquidambar styraciflua)
   Missing from Allegany
3. English/Irish Ivy (Hedera helix/hibernica)
   Missing from Allegany
4. American Strawberry Bush (Euonymus americanus)
   Missing from Allegany
5. White Grass (Leersia virginica)
   Missing from Allegany
6. Dwarf St. Johnswort (Hypericum mutilum)
   Missing from Baltimore
7. Golden Eagle (Aquila chrysaetos)
   Missing from Baltimore City
8. Rough-legged Hawk (Buteo lagopus)
   Missing from Baltimore City
9. Eastern Grass Tubeworm Moth (Acrolophus plumifrontella)
   Missing from Baltimore City
10. Comet Darner (Anax longipes)
    Missing from Baltimore City
11. Ross's Goose (Anser rossii)
    Missing from Baltimore City
12. Blue-tipped Dancer (Argia tibialis)
    Missing from Baltimore City
13. Orange Bluet (Enallagma signatum)
    Missing from Baltimore City
14. Eastern Hog-nosed Snake (Heterodon platirhinos)
    Missing from Baltimore City
15. Angelic Crocidophora Moth (Crocidophora serratissimalis)
    Missing from Baltimore City
16. Pale-winged Crocidophora Moth (Crocidophora tuberculalis)
    Missing from Baltimore City
17. Julia's Dicymolomia Moth (Dicymolomia julianalis)
    Missing from Baltimore City
18. Golden Shiner (Notemigonus crysoleucas)
    Missing from Baltimore City
19. Spotted Turtle (Clemmys guttata)
    Missing from Baltimore City
20. Bent-winged Owlet Moth (Bleptina caradrinalis)
    Missing from Baltimore City
21. Lead-colored Lichen Moth (Cisthene plumbea)
    Missing from Baltimore City
22. Painted Lichen Moth (Hypoprepia fucosa)
    Missing from Baltimore City
23. Idia julia
    Missing from Baltimore City
24. Orange Holomelina Moth (Virbia aurantiaca)
    Missing from Baltimore City
25. Redpoll (Acanthis flammea)
    Missing from Baltimore City
26. Red Crossbill (Loxia curvirostra)
    Missing from Baltimore City
27. Canadian Melanolophia Moth (Melanolophia canadaria)
    Missing from Baltimore City
28. Lancet Clubtail (Phanogomphus exilis)
    Missing from Baltimore City
29. Ashy Clubtail (Phanogomphus lividus)
    Missing from Baltimore City
30. Eastern Mud Turtle (Kinosternon subrubrum)
    Missing from Baltimore City
31. Dot-lined White Moth (Artace cribrarius)
    Missing from Baltimore City
32. Slender Spreadwing (Lestes rectangularis)
    Missing from Baltimore City
33. Spring Azure (Celastrina ladon)
    Missing from Baltimore City
34. American Copper (Lycaena phlaeas)
    Missing from Baltimore City
35. White-footed Mouse (Peromyscus leucopus)
    Missing from Baltimore City
36. Hebrew Moth (Polygrammate hebraeicum)
    Missing from Baltimore City
37. Large Mossy Lithacodia Moth (Protodeltote muscosula)
    Missing from Baltimore City
38. Common Spragueia Moth (Spragueia leo)
    Missing from Baltimore City
39. Oblique Heterocampa Moth (Heterocampa obliqua)
    Missing from Baltimore City
40. Heterocampa pulverea
    Missing from Baltimore City
41. Hackberry Emperor (Asterocampa celtis)
    Missing from Baltimore City
42. Tawny Emperor (Asterocampa clyton)
    Missing from Baltimore City
43. Cerulean Warbler (Setophaga cerulea)
    Missing from Baltimore City
44. Falcate Orangetip (Anthocharis midea)
    Missing from Baltimore City
45. Little Yellow (Pyrisitia lisa)
    Missing from Baltimore City
46. Posturing Arta Moth (Arta statalis)
    Missing from Baltimore City
47. Broad-banded Eulogia Moth (Eulogia ochrifrontella)
    Missing from Baltimore City
48. Azalea Sphinx (Darapsa choerilus)
    Missing from Baltimore City
49. Long-eared Owl (Asio otus)
    Missing from Baltimore City
50. Orange-patched Smoky Moth (Pyromorpha dimidiata)
    Missing from Baltimore City
51. Amanita sp.
    Missing from Baltimore City
52. Satyr's Beard (Hericium erinaceus)
    Missing from Baltimore City
53. Orange Day Lily (Hemerocallis fulva)
    Missing from Baltimore City
54. Early Goldenrod (Solidago juncea)
    Missing from Baltimore City
55. Gray Goldenrod (Solidago nemoralis)
    Missing from Baltimore City
56. Worm Moss (Bryoandersonia illecebra)
    Missing from Baltimore City
57. Steerecleus Moss (Rhynchostegium serrulatum)
    Missing from Baltimore City
58. Lobe-leaved Tree Moss (Climacium americanum)
    Missing from Baltimore City
59. Silky Dogwood (Cornus amomum)
    Missing from Baltimore City
60. Yellow-fruited Sedge (Carex annectens)
    Missing from Baltimore City
61. Fringed Sedge (Carex crinita)
    Missing from Baltimore City
62. Greater Bladder Sedge (Carex intumescens)
    Missing from Baltimore City
63. Smooth-sheathed Sedge (Carex laevivaginata)
    Missing from Baltimore City
64. Woolgrass (Scirpus cyperinus)
    Missing from Baltimore City
65. Eastern Hayscented Fern (Dennstaedtia punctilobula)
    Missing from Baltimore City
66. Fine Hair Moss (Dicranella heteromalla)
    Missing from Baltimore City
67. Windswept Broom Moss (Dicranum scoparium)
    Missing from Baltimore City
68. Pincushion Moss (Leucobryum glaucum)
    Missing from Baltimore City
69. Purple Moss (Ceratodon purpureus)
    Missing from Baltimore City
70. Seductive Entodon Moss (Entodon seductrix)
    Missing from Baltimore City
71. Wild Indigo (Baptisia tinctoria)
    Missing from Baltimore City
72. Brocade Moss (Callicladium imponens)
    Missing from Baltimore City
73. Flat-Brocade Moss (Platygyrium repens)
    Missing from Baltimore City
74. Indian Cucumber (Medeola virginiana)
    Missing from Baltimore City
75. Flat-branched Tree Clubmoss (Dendrolycopodium obscurum)
    Missing from Baltimore City
76. Southern Ground Cedar (Diphasiastrum digitatum)
    Missing from Baltimore City
77. Poodle Moss (Pseudanomodon attenuatus)
    Missing from Baltimore City
78. Cutleaf Grapefern (Sceptridium dissectum)
    Missing from Baltimore City
79. Royal Fern (Osmunda regalis)
    Missing from Baltimore City
80. Little Bluestem (Schizachyrium scoparium)
    Missing from Baltimore City
81. Slender Starburst Moss (Atrichum angustatum)
    Missing from Baltimore City
82. Oak Haircap Moss (Polytrichum ohioense)
    Missing from Baltimore City
83. Delicate Thuidium Moss (Thuidium delicatulum)
    Missing from Baltimore City
84. Sparganothis Fruitworm Moth (Sparganothis sulfureana)
    Missing from Calvert
85. Surf Scoter (Melanitta perspicillata)
    Missing from Caroline
86. Andrena miserabilis
    Missing from Caroline
87. Tawny-edged Skipper (Polites themistocles)
    Missing from Caroline
88. Pipevine Swallowtail (Battus philenor)
    Missing from Caroline
89. Dimorphic Macalla Moth (Epipaschia superatalis)
    Missing from Caroline
90. Leiobunum vittatum
    Missing from Caroline
91. Common Paper Wasp (Polistes exclamans)
    Missing from Caroline
92. Bigtooth Aspen (Populus grandidentata)
    Missing from Caroline
93. Channel Catfish (Ictalurus punctatus)
    Missing from Carroll
94. Lacquered Polypore (Ganoderma lucidum)
    Missing from Carroll
95. Beechdrops (Epifagus virginiana)
    Missing from Carroll
96. Eupithecia sp.
    Missing from Cecil
97. Osmia taurus
    Missing from Cecil
98. Slender Meadow Katydid (Conocephalus fasciatus)
    Missing from Cecil
99. Canada Lettuce (Lactuca canadensis)
    Missing from Cecil
100. Amur Honeysuckle (Lonicera maackii)
     Missing from Cecil
101. Asiatic Dayflower (Commelina communis)
     Missing from Cecil
102. Common Three-seeded Mercury (Acalypha rhomboidea)
     Missing from Cecil
103. Dwarf Cinquefoil (Potentilla canadensis)
     Missing from Cecil
104. Snow Bunting (Plectrophenax nivalis)
     Missing from Charles
105. Potato Leafhopper (Empoasca fabae)
     Missing from Charles
106. Monocrepidius lividus
     Missing from Charles
107. Brown-shaded Gray Moth (Iridopsis defectaria)
     Missing from Charles
108. Suzuki's Promalactis Moth (Promalactis suzukiella)
     Missing from Charles
109. Philoscia muscorum
     Missing from Charles
110. Long-necked Seed Bug (Myodocha serripes)
     Missing from Charles
111. Disc Mayweed (Matricaria discoidea)
     Missing from Charles
112. Hedge False Bindweed (Calystegia sepium)
     Missing from Charles
113. Common St. Johnswort (Hypericum perforatum)
     Missing from Charles
114. Green Carpetweed (Mollugo verticillata)
     Missing from Charles
115. Annual Bluegrass (Poa annua)
     Missing from Charles
116. Andrena perplexa
     Missing from Dorchester
117. Armadillidium nasatum
     Missing from Dorchester
118. Banded Tussock Moth (Halysidota tessellaris)
     Missing from Dorchester
119. Dragonhunter (Hagenius brevistylus)
     Missing from Dorchester
120. Beautiful Wood-nymph Moth (Eudryas grata)
     Missing from Dorchester
121. Harlequin Bug (Murgantia histrionica)
     Missing from Dorchester
122. Blinded Sphinx (Paonias excaecata)
     Missing from Dorchester
123. Dusky-winged Hover Fly (Ocyptamus fuscipennis)
     Missing from Dorchester
124. Black Scoter (Melanitta americana)
     Missing from Frederick
125. American Avocet (Recurvirostra americana)
     Missing from Frederick
126. False Pimpernel (Lindernia dubia)
     Missing from Frederick
127. Marbled Salamander (Ambystoma opacum)
     Missing from Garrett
128. Hibiscus Bee (Ptilothrix bombiformis)
     Missing from Garrett
129. Holcocranum saturejae
     Missing from Garrett
130. Eastern Wormsnake (Carphophis amoenus)
     Missing from Garrett
131. Cerceris insolita
     Missing from Garrett
132. Red-bordered Emerald Moth (Nemoria lixaria)
     Missing from Garrett
133. Northern Mole Cricket (Neocurtilla hexadactyla)
     Missing from Garrett
134. Bruner's Dialictus (Lasioglossum bruneri)
     Missing from Garrett
135. Lasioglossum fuscipenne
     Missing from Garrett
136. Hayhurst's Scallopwing (Staphylus hayhurstii)
     Missing from Garrett
137. Eastern Musk Turtle (Sternotherus odoratus)
     Missing from Garrett
138. Great Black-backed Gull (Larus marinus)
     Missing from Garrett
139. Cow Killer (Dasymutilla occidentalis)
     Missing from Garrett
140. Bent-line Dart Moth (Choephora fungorum)
     Missing from Garrett
141. Patent Leather Beetle (Odontotaenius disjunctus)
     Missing from Garrett
142. Wheel Bug (Arilus cristatus)
     Missing from Garrett
143. Oriental Beetle (Anomala orientalis)
     Missing from Garrett
144. White Ibis (Eudocimus albus)
     Missing from Garrett
145. Delphinia picta
     Missing from Garrett
146. Tree Ear (Auricularia sp.)
     Missing from Garrett
147. Mustard-yellow Polypore (Fuscoporia gilva)
     Missing from Garrett
148. Hedera sp.
     Missing from Garrett
149. Spanish Needles (Bidens bipinnata)
     Missing from Garrett
150. Clasping Venus Looking-glass (Triodanis perfoliata)
     Missing from Garrett
151. Ivy-leaved Morning-glory (Ipomoea hederacea)
     Missing from Garrett
152. Small White Morning-glory (Ipomoea lacunosa)
     Missing from Garrett
153. Straw-colored Flatsedge (Cyperus strigosus)
     Missing from Garrett
154. Common Persimmon (Diospyros virginiana)
     Missing from Garrett
155. Rabbitfoot Clover (Trifolium arvense)
     Missing from Garrett
156. Common Vetch (Vicia sativa)
     Missing from Garrett
157. Crimson-eyed Rosemallow (Hibiscus moscheutos)
     Missing from Garrett
158. Small Carpgrass (Arthraxon hispidus)
     Missing from Garrett
159. Goosegrass (Eleusine indica)
     Missing from Garrett
160. Johnsongrass (Sorghum halepense)
     Missing from Garrett
161. Little Hogweed (Portulaca oleracea)
     Missing from Garrett
162. Sweet Autumn Virginsbower (Clematis terniflora)
     Missing from Garrett
163. Lizard's-tail (Saururus cernuus)
     Missing from Garrett
164. Blue Corporal (Ladona deplanata)
     Missing from Harford
165. Megachile sp.
     Missing from Harford
166. Spiny Sow-thistle (Sonchus asper)
     Missing from Harford
167. Spotted Ladysthumb (Persicaria maculosa)
     Missing from Harford
168. Willet (Tringa semipalmata)
     Missing from Howard
169. Eastern American Toad (Anaxyrus americanus)
     Missing from Kent
170. Black Firefly (Lucidota atra)
     Missing from Kent
171. Meal Moth (Pyralis farinalis)
     Missing from Kent
172. Io Moth (Automeris io)
     Missing from Kent
173. Thin-maze Flat Polypore (Daedaleopsis confragosa)
     Missing from Kent
174. Violet Tooth (Trichaptum biforme)
     Missing from Kent
175. Chinese Silvergrass (Miscanthus sinensis)
     Missing from Kent
176. Banded Longhorn (Typocerus velutinus)
     Missing from Queen Anne's
177. Baltimore Bomolocha Moth (Hypena baltimoralis)
     Missing from Queen Anne's
178. Horrid Zale Moth (Zale horrida)
     Missing from Queen Anne's
179. Common Angle Moth (Macaria aemulataria)
     Missing from Queen Anne's
180. Porcelain Gray Moth (Protoboarmia porcelaria)
     Missing from Queen Anne's
181. Crossline Skipper (Limochores origenes)
     Missing from Queen Anne's
182. Tufted Bird-dropping Moth (Cerma cerintha)
     Missing from Queen Anne's
183. Bronzed Cutworm Moth (Nephelodes minians)
     Missing from Queen Anne's
184. Acanalonia conica
     Missing from Somerset
185. Arrowhead Spider (Verrucosa arenata)
     Missing from Somerset
186. Spiny-cheeked Crayfish (Faxonius limosus)
     Missing from Somerset
187. Ocellate Gall Midge (Acericecis ocellaris)
     Missing from Somerset
188. Brown Prionid (Orthosoma brunneum)
     Missing from Somerset
189. Broad-necked Root Borer (Prionus laticollis)
     Missing from Somerset
190. Red-banded Leafhopper (Graphocephala coccinea)
     Missing from Somerset
191. Jikradia olitoria
     Missing from Somerset
192. Blue-fronted Dancer (Argia apicalis)
     Missing from Somerset
193. Variable Dancer (Argia fumipennis)
     Missing from Somerset
194. Carpenterworm Moth (Prionoxystus robiniae)
     Missing from Somerset
195. Asiatic Oak Weevil (Cyrtepistomus castaneus)
     Missing from Somerset
196. White-margined Burrower Bug (Sehirus cinctus)
     Missing from Somerset
197. Morbid Owlet Moth (Chytolita morbidalis)
     Missing from Somerset
198. Banded/Sycamore Tussock Moth (Halysidota sp.)
     Missing from Somerset
199. American Idia Moth (Idia americalis)
     Missing from Somerset
200. Ambiguous Moth (Lascoria ambigualis)
     Missing from Somerset
201. Spotted Grass Moth (Rivula propinqualis)
     Missing from Somerset
202. Black Cherry Leaf Gall Mite (Eriophyes cerasicrumena)
     Missing from Somerset
203. Northern Flatid Planthopper (Flatormenis proxima)
     Missing from Somerset
204. Red Carpenter Ant (Camponotus chromaiodes)
     Missing from Somerset
205. Black Carpenter Ant (Camponotus pennsylvanicus)
     Missing from Somerset
206. False Honey Ant (Prenolepis imparis)
     Missing from Somerset
207. Spotted Lanternfly (Lycorma delicatula)
     Missing from Somerset
208. Stripe-backed Moth (Arogalea cristifasciella)
     Missing from Somerset
209. Curve-toothed Geometer Moth (Eutrapela clemataria)
     Missing from Somerset
210. Cameraria guttifinitella
     Missing from Somerset
211. Handsome Trig (Phyllopalpus pulchellus)
     Missing from Somerset
212. Saddleback Caterpillar Moth (Acharia stimulea)
     Missing from Somerset
213. White-M Hairstreak (Parrhasius m-album)
     Missing from Somerset
214. Banded Hairstreak (Satyrium calanus)
     Missing from Somerset
215. Chinese Mantis (Tenodera sinensis)
     Missing from Somerset
216. Dingy Cutworm Moth (Feltia jaculifera)
     Missing from Somerset
217. Small Mossy Lithacodia Moth (Lithacodia musta)
     Missing from Somerset
218. Bicolored Sallow Moth (Sunira bicolorago)
     Missing from Somerset
219. Saddled Prominent Moth (Cecrita guttivitta)
     Missing from Somerset
220. White-dotted Prominent Moth (Nadata gibbosa)
     Missing from Somerset
221. Zebra Swallowtail (Eurytides marcellus)
     Missing from Somerset
222. Euschistus sp.
     Missing from Somerset
223. Tessellated Darter (Etheostoma olmstedi)
     Missing from Somerset
224. Six-spotted Fishing Spider (Dolomedes triton)
     Missing from Somerset
225. Orange Assassin Bug (Pselliopus barberi)
     Missing from Somerset
226. Flat Jumper (Platycryptus undatus)
     Missing from Somerset
227. Tulip-tree Silkmoth (Callosamia angulifera)
     Missing from Somerset
228. Hummingbird Clearwing (Hemaris thysbe)
     Missing from Somerset
229. Narceus americanus-annularis
     Missing from Somerset
230. Transverse Flower Fly (Eristalis transversa)
     Missing from Somerset
231. Tipula sp.
     Missing from Somerset
232. Pear-shaped Puffball (Apioperdon pyriforme)
     Missing from Somerset
233. Jelly Rot Fungus (Merulius tremellosus)
     Missing from Somerset
234. Cherry Knot Gall (Apiosporina morbosa)
     Missing from Somerset
235. Missouri Lambsquarters (Chenopodium album)
     Missing from Somerset
236. Butterfly Weed (Asclepias tuberosa)
     Missing from Somerset
237. Common Winterberry (Ilex verticillata)
     Missing from Somerset
238. Skunk Cabbage (Symplocarpus foetidus)
     Missing from Somerset
239. Common Boneset (Eupatorium perfoliatum)
     Missing from Somerset
240. Shaggy Soldier (Galinsoga quadriradiata)
     Missing from Somerset
241. Eastern Woodland Sedge (Carex blanda)
     Missing from Somerset
242. Wild Yam (Dioscorea villosa)
     Missing from Somerset
243. Deerberry (Vaccinium stamineum)
     Missing from Somerset
244. Eastern Redbud (Cercis canadensis)
     Missing from Somerset
245. Bitternut Hickory (Carya cordiformis)
     Missing from Somerset
246. Beefsteak Plant (Perilla frutescens)
     Missing from Somerset
247. Indian Woodoats (Chasmanthium latifolium)
     Missing from Somerset
248. Asiatic Tearthumb (Persicaria perfoliata)
     Missing from Somerset
249. Lesser Celandine (Ficaria verna)
     Missing from Somerset
250. Bulbous Buttercup (Ranunculus bulbosus)
     Missing from Somerset
251. White Avens (Geum canadense)
     Missing from Somerset
252. Black Raspberry (Rubus occidentalis)
     Missing from Somerset
253. Slippery Elm (Ulmus rubra)
     Missing from Somerset
254. Field Pansy (Viola bicolor)
     Missing from Somerset
255. Coleophora sp.
     Missing from St. Mary's
256. Dogbane Saucrobotys Moth (Saucrobotys futilalis)
     Missing from St. Mary's
257. Pearly Wood-nymph Moth (Eudryas unio)
     Missing from St. Mary's
258. Annual Fleabane (Erigeron annuus)
     Missing from St. Mary's
259. Winter Creeper (Euonymus fortunei)
     Missing from St. Mary's
260. Spinulose Woodfern (Dryopteris carthusiana)
     Missing from St. Mary's
261. Blackseed Plantain (Plantago rugelii)
     Missing from St. Mary's
262. Grass Spider (Agelenopsis sp.)
     Missing from Talbot
263. Speckled Sharpshooter (Paraulacizes irrorata)
     Missing from Talbot
264. Waterlily Leafcutter Moth (Elophila obliteralis)
     Missing from Talbot
265. Bicolored Pyrausta Moth (Pyrausta bicoloralis)
     Missing from Talbot
266. Apantesis sp.
     Missing from Talbot
267. Green Mantisfly (Zeugomantispa minuta)
     Missing from Talbot
268. Mormidea lugens
     Missing from Talbot
269. Morning-glory Plume Moth (Emmelina monodactyla)
     Missing from Talbot
270. Eremnophila aureonotata
     Missing from Talbot
271. Polistes sp.
     Missing from Talbot
272. Poverty Rush (Juncus tenuis)
     Missing from Talbot
273. Brant (Branta bernicla)
     Missing from Washington
274. Gray/Cope's Gray Treefrog (Dryophytes versicolor/chrysoscelis)
     Missing from Washington
275. Laughing Gull (Leucophaeus atricilla)
     Missing from Washington
276. Smeared Dagger Moth (Acronicta oblinita)
     Missing from Washington
277. Western Sandpiper (Calidris mauri)
     Missing from Washington
278. Buff-breasted Sandpiper (Calidris subruficollis)
     Missing from Washington
279. Bidens Borer Moth (Epiblema otiosana)
     Missing from Washington
280. Garden Asparagus (Asparagus officinalis)
     Missing from Washington
281. Common Gray Moth (Anavitrinella pampinaria)
     Missing from Wicomico
282. Beggar Moth (Eubaphe mendica)
     Missing from Wicomico
283. Common Tan Wave Moth (Pleuroprucha insulsaria)
     Missing from Wicomico
284. Pure Green Augochlora (Augochlora pura)
     Missing from Wicomico
285. Lasioglossum imitatum
     Missing from Wicomico
286. Margined Carrion Beetle (Oiceoptoma noveboracense)
     Missing from Wicomico
287. Jumpseed (Persicaria virginiana)
     Missing from Wicomico
288. Scarlet Pimpernel (Lysimachia arvensis)
     Missing from Wicomico
289. Swamp Verbena (Verbena hastata)
     Missing from Wicomico
290. Penitent Underwing Moth (Catocala piatrix)
     Missing from Worcester
291. Honeylocust (Gleditsia triacanthos)
     Missing from Worcester