| Acanaloniidae Amyot and Se..., 1843 | Acanalonid planthoppers | 2 | Species | Taxom |
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 18 | Species | Taxom |
| Aeshnidae Rambur, 1842 | Darners | 6 | Species | Taxom |
| Amphipsocidae Mockford, 1978 | Hairy-winged Barklice | 1 | Species | Taxom |
| Andrenidae Webster, 1913 | Andrenid bees | 4 | Species | Taxom |
| Anthicidae Latreille, 1819 | Ant beetles | 2 | Species | Taxom |
| Aphalaridae Löw, 1879 | | 6 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphids | 9 | Species | Taxom |
| Aphrophoridae Evans, 1946 | Froghoppers | 3 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 19 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 1 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 15 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 2 | Species | Taxom |
| Belostomatidae Leach, 1815 | Alligator ticks | 1 | Species | Taxom |
| Bethylidae Halliday, 1839 | Bethylid wasps | 0 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 1 | Species | Taxom |
| Blattidae Stephens, 1829 | American cockroaches | 1 | Species | Taxom |
| Bombycidae Latreille, 1802 | Lappet moths | 1 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 5 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 0 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 3 | Species | Taxom |
| Byturidae Jacquelin du..., 1858 | Fruit worms | 1 | Species | Taxom |
| Caeciliusidae Kolbe, 1880 | Lizard Barklice | 1 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 3 | Species | Taxom |
| Calopterygidae Selys, 1850 | Broad-winged damselflies | 5 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 2 | Species | Taxom |
| Capniidae Klapálek, 1905 | Capniid winter stoneflies | 7 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 57 | Species | Taxom |
| Carcinophoridae Hincks, 1954 | | 1 | Species | Taxom |
| Carposinidae Walsingham, 1907 | Carposinid moths | 1 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Forest Midges | 0 | Species | Taxom |
| Cephidae Newman, 1834 | Cephids | 1 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 44 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 3 | Species | Taxom |
| Chloroperlidae Okamoto, 1912 | Green stoneflies | 2 | Species | Taxom |
| Choreutidae Stainton, 1854 | Choreuitid Moths | 1 | Species | Taxom |
| Chrysididae Latreille, 1802 | Chrysidid wasps | 1 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 26 | Species | Taxom |
| Chrysopidae Schneider, 1851 | And Green Lacewings | 2 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 20 | Species | Taxom |
| Cicadidae Westwood, 1840 | Cicada | 4 | Species | Taxom |
| Cimbicidae Kirby, 1837 | Cimbicid sawflies | 2 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 5 | Species | Taxom |
| Clastopteridae Stål, 1858 | Clastopterid Spittlebugs | 2 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 2 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 13 | Species | Taxom |
| Coenagrionidae Kirby, 1890 | Narrow-winged damselflies | 18 | Species | Taxom |
| Coleophoridae Hübner, 1825 | Case moths | 6 | Species | Taxom |
| Colletidae Lepeletier, 1841 | Colletid bees | 2 | Species | Taxom |
| Coniopterygidae Burmeister, 1839 | Dusty lacewings | 1 | Species | Taxom |
| Copromorphidae Meyrick, 1905 | Fig Borers | 1 | Species | Taxom |
| Cordulegastridae Calvert, 1893 | Biddie | 1 | Species | Taxom |
| Corduliidae Selys-Longch..., 1850 | Baskettails | 7 | Species | Taxom |
| Coreidae Leach, 1815 | Broad-headed bugs | 3 | Species | Taxom |
| Corydalidae Burmeister, 1839 | Dobsonflies | 3 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 2 | Species | Taxom |
| Cossidae Leach, 1815 | Borers | 1 | Species | Taxom |
| Crabronidae Latreille, 1802 | Bee Wolves | 3 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 58 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 6 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 16 | Species | Taxom |
| Cydnidae Billberg, 1820 | Burrower bugs | 2 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 3 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 1 | Species | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | Diapheromerid Stick Insects | 1 | Species | Taxom |
| Diprionidae Rohwer, 1911 | Conifer sawflies | 1 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 2 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 1 | Species | Taxom |
| Dryopidae Billberg, 1820 | Long toed water beetle | 4 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 5 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 8 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 5 | Species | Taxom |
| Elmidae Curtis, 1830 | Drive beetles | 13 | Species | Taxom |
| Empididae Latreille, 1809 | Balloon flies | 3 | Species | Taxom |
| Endomychidae Leach, 1815 | False Ladybirds | 2 | Species | Taxom |
| Ephemerellidae (Klapálek, 1909) | Blue-Winged Olive Ephemerellidae | 1 | Species | Taxom |
| Ephemeridae Leach, 1817 | Burrowing mayflies | 3 | Species | Taxom |
| Epipygidae Hamilton, 2001 | | 1 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 84 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 1 | Species | Taxom |
| Eupelmidae Walker, 1833 | Eupelmid wasps | 1 | Species | Taxom |
| Euteliidae Grote, 1882 | Euteliid Moths | 1 | Species | Taxom |
| Figitidae Thomson, 1862 | Figitid wasps | 1 | Species | Taxom |
| Flatidae Spinola, 1839 | Flatid planthoppers | 1 | Species | Taxom |
| Forficulidae Stephens, 1829 | Common Earwig | 1 | Species | Taxom |
| Formicidae Latreille, 1809 | Ants | 32 | Species | Taxom |
| Fulgoridae Latreille, 1807 | Fulgorid Planthopper | 1 | Species | Taxom |
| Gasteruptiidae Ashmead, 1900 | Carrot Wasps | 0 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 9 | Species | Taxom |
| Geocoridae Baerensprung, 1860 | Big-eyed Bugs | 2 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 67 | Species | Taxom |
| Geotrupidae Latreille, 1802 | Dor beetles | 1 | Species | Taxom |
| Gerridae Leach, 1815 | Jesus bugs | 1 | Species | Taxom |
| Glossosomatidae Wallengren, 1891 | Little Black Caddisflies | 1 | Species | Taxom |
| Glyphipterigidae Stainton, 1854 | Glyphipterigid moths | 1 | Species | Taxom |
| Goeridae Ulmer, 1903 | | 1 | Species | Taxom |
| Gomphidae Rambur, 1842 | Club-tailed dragonflies | 13 | Species | Taxom |
| Gracillariidae Stainton, 1854 | Blotch leaf miner moths | 8 | Species | Taxom |
| Gryllacrididae Blanchard, 1845 | Camel Crickets | 1 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 2 | Species | Taxom |
| Gyrinidae Latreille, 1802 | Whirligig beetle | 4 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 20 | Species | Taxom |
| Haliplidae Aubé, 1836 | Crawling Water Beetle | 0 | Species | Taxom |
| Helicopsychidae Ulmer, 1912 | Snail Case caddisflies | 1 | Species | Taxom |
| Hemerobiidae Latreille, 1802 | Brown Lacewing | 3 | Species | Taxom |
| Hepialidae Stephens, 1829 | Ghost Moths | 1 | Species | Taxom |
| Heptageniidae Needham, 1901 | Flat-Bodied Up-Wings Heptageniidae | 6 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Skipper | 28 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 1 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 9 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 2 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 1 | Species | Taxom |
| Hydrobiosidae Ulmer, 1905 | | 2 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 5 | Species | Taxom |
| Hydropsychidae Curtis, 1835 | Net Spinning caddisflies | 8 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 7 | Species | Taxom |
| Hymenopodidae Giglio-Tos, 1919 | Flower mimic mantises | 1 | Species | Taxom |
| Ibaliidae Thomson, 1862 | Ibaliid wasps | 1 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 8 | Species | Taxom |
| Isostictidae Fraser, 1955 | Narrow-wings | 1 | Species | Taxom |
| Issidae Spinola, 1839 | Issid planthoppers | 1 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 2 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 4 | Species | Taxom |
| Latridiidae Erichson, 1842 | Minute brown scavenger beetle | 1 | Species | Taxom |
| Lepismatidae Latreille, 1802 | Lepismatid Fishmoths | 1 | Species | Taxom |
| Leptoceridae Leach, 1815 | Long Horned caddisflies | 10 | Species | Taxom |
| Leptophlebiidae Banks, 1900 | Leptophlebiids | 0 | Species | Taxom |
| Lestidae Calvert, 1901 | Spread-winged damselflies | 3 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 2 | Species | Taxom |
| Libellulidae Rambur, 1842 | Chasers | 18 | Species | Taxom |
| Limacodidae Duponchel, 1845 | Cup moths | 3 | Species | Taxom |
| Limnephilidae Kolenati, 1848 | Northern caddisflies | 0 | Species | Taxom |
| Limnichidae Erichson, 1846 | Minute marsh loving beetle | 1 | Species | Taxom |
| Liviidae Low, 1879 | | 1 | Species | Taxom |
| Lycaenidae Leach, 1815 | Blue butterflies | 20 | Species | Taxom |
| Lycidae Laporte, 1836 | Lycid beetles | 2 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 2 | Species | Taxom |
| Lyonetiidae Stainton, 1854 | Lyonet Moths | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 1 | Species | Taxom |
| Megachilidae Schenk, 1860 | And Resin Bees | 9 | Species | Taxom |
| Megalopygidae Herrich-Schä..., 1855 | Crinkled Flannel Moths | 2 | Species | Taxom |
| Megapodagrionidae Tillyard, 1917 | Flatwing | 1 | Species | Taxom |
| Megaspilidae Ashmead, 1893 | Megaspilid wasps | 0 | Species | Taxom |
| Melandryidae Leach, 1815 | False Darkling Beetle | 1 | Species | Taxom |
| Meloidae Gyllenhal, 1810 | Blister Beetle | 2 | Species | Taxom |
| Membracidae Germar, 1821 | Horned Treehoppers | 4 | Species | Taxom |
| Meropeidae Espen-Petersen, 1921 | Earwig-flies | 1 | Species | Taxom |
| Micropezidae Illiger, 1798 | Stilt Flies | 1 | Species | Taxom |
| Miridae Hahn, 1831 | Capsid bugs | 11 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 3 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 4 | Species | Taxom |
| Mutillidae André, 1907 | Cow ant | 1 | Species | Taxom |
| Naucoridae Leach, 1815 | Creeping water bug | 1 | Species | Taxom |
| Nemouridae Newman, 1853 | Brown stoneflies | 3 | Species | Taxom |
| Nepidae Latreille, 1802 | Back-swimmer Water-boatmen | 1 | Species | Taxom |
| Nitidulidae Latreille, 1802 | Nitidules | 3 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 90 | Species | Taxom |
| Nogodinidae Melichar, 1898 | | 1 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 4 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 12 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 3 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 37 | Species | Taxom |
| Odontoceridae Wallengren, 1891 | Mortarjoint Casemaker Caddisflies | 0 | Species | Taxom |
| Oecanthidae (Blanchard, 1845) | Tree cricket | 2 | Species | Taxom |
| Oecophoridae Bruand, 1851 | Concealer Moths | 1 | Species | Taxom |
| Opostegidae Meyrick, 1893 | Opostegid moths | 1 | Species | Taxom |
| Orsodacnidae Thomson, 1859 | Orsodacnid Leaf Beetles | 1 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 2 | Species | Taxom |
| Oxycarenidae Stål, 1862 | | 1 | Species | Taxom |
| Pachygronthidae Stål, 1865 | | 1 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 7 | Species | Taxom |
| Passalidae Leach, 1815 | Bess beetle | 1 | Species | Taxom |
| Pelecinidae Haliday, 1839 | Ancestral And Modern Pelecinid Wasps | 1 | Species | Taxom |
| Peltoperlidae Claassen, 1931 | Roach stoneflies | 1 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 21 | Species | Taxom |
| Pergidae Rohwer, 1911 | Pergid flies | 1 | Species | Taxom |
| Perilampidae Latreille, 1809 | Perilampid waps | 1 | Species | Taxom |
| Perlidae (Latreille, 1802) | Common stoneflies | 13 | Species | Taxom |
| Perlodidae Klapálek, 1912 | Perlodid stoneflies | 4 | Species | Taxom |
| Petaluridae Needham, 1903 | Grayback dragonfly | 1 | Species | Taxom |
| Phalacridae Leach, 1815 | Shining flower beetles | 0 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 1 | Species | Taxom |
| Philopotamidae Stephens, 1829 | Finger Net caddisflies | 3 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 3 | Species | Taxom |
| Phylloxeridae Herrich-Scha..., 1854 | Phylloxeran Aphids | 1 | Species | Taxom |
| Pieridae Duponchel, 1835 | Brimstones | 13 | Species | Taxom |
| Pipunculidae Walker, 1834 | Big headed flies | 2 | Species | Taxom |
| Platystomatidae Schiner, 1862 | Picture-winged flies | 1 | Species | Taxom |
| Pleidae Fieber, 1817 | Pigmy backswimmers | 1 | Species | Taxom |
| Plutellidae Guenée, 1845 | Diamond-back moths | 1 | Species | Taxom |
| Podoscirtidae Saussure, 1878 | | 1 | Species | Taxom |
| Polycentropodidae Ulmer, 1903 | Tube Maker Caddisflies | 3 | Species | Taxom |
| Polymitarcyidae Banks, 1900 | Pale Burrower Mayflies | 1 | Species | Taxom |
| Pompilidae Latreille, 1805 | Pompilid wasps | 1 | Species | Taxom |
| Prisopodidae Brunner von ..., 1893 | | 1 | Species | Taxom |
| Prodoxidae Riley, 1881 | Yucca Moths | 1 | Species | Taxom |
| Psephenidae Lacordaire, 1854 | Water pennies | 2 | Species | Taxom |
| Pseudococcidae Heymons, 1915 | Mealy Bugs | 1 | Species | Taxom |
| Psocidae Samouelle, 1819 | Common bark louse | 1 | Species | Taxom |
| Psychidae Boisduval, 1828 | Bagmoths | 1 | Species | Taxom |
| Psychodidae Newman, 1834 | Drain flies | 3 | Species | Taxom |
| Psychomyiidae Walker, 1852 | Net Tube Caddisflies | 2 | Species | Taxom |
| Psyllidae Latreille, 1807 | Jumping plant lice | 11 | Species | Taxom |
| Pteromalidae Dalman, 1820 | Pteromalid wasps | 1 | Species | Taxom |
| Pteronarcyidae Enderlein, 1909 | Giant stoneflies | 2 | Species | Taxom |
| Pterophoridae Zeller, 1841 | Plume Moths | 4 | Species | Taxom |
| Ptilodactylidae Laporte, 1836 | Ptilodactylid beetles | 1 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 2 | Species | Taxom |
| Ptychopteridae Osten Sacken, 1862 | Phantom crane flies | 1 | Species | Taxom |
| Pulicidae Billberg, 1820 | Cat fleas | 1 | Species | Taxom |
| Pyralidae Latreille, 1802 | Flour Moths | 16 | Species | Taxom |
| Pyrochroidae Latreille, 1807 | Cardinal beetles | 0 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 7 | Species | Taxom |
| Rhopalidae Amyot & Serv..., 1843 | Rhopalid Bugs | 3 | Species | Taxom |
| Rhopalopsyllidae Oudemans, 1909 | Marsupial fleas | 1 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 2 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 1 | Species | Taxom |
| Saturniidae Boisduval, 1837 | And Giant Silk Moths | 10 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 28 | Species | Taxom |
| Scathophagidae Robineau-Des..., 1830 | Dung flies | 1 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 1 | Species | Taxom |
| Schreckensteiniidae Fletcher, 1929 | Bristle Legged Moths | 1 | Species | Taxom |
| Scirtidae Fleming, 1821 | Marsh Beetle | 1 | Species | Taxom |
| Scoliidae Leach, 1815 | Mammoth wasps | 1 | Species | Taxom |
| Scutelleridae Leach, 1815 | Jewel bugs | 1 | Species | Taxom |
| Sesiidae Boisduval, 1828 | Clear Wings | 3 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 2 | Species | Taxom |
| Silvanidae Kirby, 1837 | Flat bark beetles | 1 | Species | Taxom |
| Siphlonuridae Banks, 1900 | Primitive Minnow Mayflies | 1 | Species | Taxom |
| Siricidae Billberg, 1820 | Horntail | 2 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 1 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 7 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 31 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 7 | Species | Taxom |
| Stenopsocidae Pearman, 1936 | Narrow Barklice | 1 | Species | Taxom |
| Stratiomyidae Latreille, 1802 | Soldier flies | 6 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 17 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 3 | Species | Taxom |
| Tachinidae (Robineau-Des..., 1830) | Bristle Flies | 4 | Species | Taxom |
| Taeniopterygidae Klapálek, 1905 | Taeniopterygid winter stoneflies | 5 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 13 | Species | Taxom |
| Tenthredinidae Latreille, 1804 | Common sawflies | 8 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 2 | Species | Taxom |
| Termitidae Latreille, 1802 | Higher termites | 1 | Species | Taxom |
| Tetrigidae Rambur, 1838 | Groundhoppers | 4 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 5 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 1 | Species | Taxom |
| Tingidae Laporte, 1832 | Lace bug | 1 | Species | Taxom |
| Tiphiidae Leach, 1815 | Flower wasps | 1 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 5 | Species | Taxom |
| Tischeriidae Spuler, 1898 | Lyonetiid moths | 1 | Species | Taxom |
| Tortricidae Latreille, 1803 | Bell Moths | 56 | Species | Taxom |
| Tridactylidae Saussure, 1874 | Pygmy mole cricket | 1 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 2 | Species | Taxom |
| Triozidae Löw, 1879 | Jumping plant lice | 5 | Species | Taxom |
| Trogidae (MacLeay, 1819) | Gnawer beetles | 2 | Species | Taxom |
| Ulidiidae Macquart, 1835 | Picture-winged Flies | 1 | Species | Taxom |
| Veliidae Amyot & Serv..., 1843 | Broad-shouldered bugs | 0 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 9 | Species | Taxom |
| Xiphydriidae Leach, 1819 | Wood wasps | 1 | Species | Taxom |
| Xylomyidae Verrall, 1901 | Wood soldier flies | 1 | Species | Taxom |
| Xylophagidae Fallen, 1810 | Awl-flies | 1 | Species | Taxom |
| Xyloryctidae Meyrick, 1890 | Flower Moths | 1 | Species | Taxom |
| Yponomeutidae Stephens, 1829 | Ermine Moths | 1 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 1 | Species | Taxom |
