List of families for St. Thomas
131 Families width 601 Species and 27 Subspecies
| Acrididae MacLeay, 1819 | Grasshoppers and locusts | 7 | Species | Taxom |
| Aleyrodidae Westwood, 1840 | Whiteflies | 2 | Species | Taxom |
| Aphididae Latreille, 1802 | Aphids | 2 | Species | Taxom |
| Apidae Latreille, 1802 | Bumble bees | 6 | Species | Taxom |
| Argidae Konow, 1890 | Argid flies | 1 | Species | Taxom |
| Asilidae Latreille, 1802 | Assassin flies | 7 | Species | Taxom |
| Asteiidae Rondani, 1856 | Asteiid Flies | 1 | Species | Taxom |
| Attelabidae Billberg, 1820 | Leaf Rolling Weevil | 1 | Species | Taxom |
| Autostichidae Le Marchand, 1947 | Autostichid Moths | 1 | Species | Taxom |
| Blaberidae Saussure, 1864 | Blaberids | 1 | Species | Taxom |
| Blattellidae (Karny, 1908) | German Cockroach | 1 | Species | Taxom |
| Bombyliidae Latreille, 1802 | Bee Flies | 1 | Species | Taxom |
| Bostrichidae Latreille, 1802 | Auger beetles | 1 | Species | Taxom |
| Braconidae Latreille, 1829 | Braconid wasps | 1 | Species | Taxom |
| Brentidae Billberg, 1820 | Brenthidae | 1 | Species | Taxom |
| Buprestidae Leach, 1815 | Flat-headed wood-borers | 1 | Species | Taxom |
| Calliphoridae Brauer & Ber..., 1889 | Blow flies | 7 | Species | Taxom |
| Calopterygidae Selys, 1850 | Broad-winged damselflies | 1 | Species | Taxom |
| Cantharidae Imhoff, 1856 | Cantharids | 1 | Species | Taxom |
| Carabidae Latreille, 1802 | Carabid beetles | 6 | Species | Taxom |
| Cecidomyiidae Newman, 1834 | Forest Midges | 1 | Species | Taxom |
| Cerambycidae Latreille, 1802 | Long Horn beetles | 14 | Species | Taxom |
| Ceratopogonidae Newman, 1834 | Biting midge | 1 | Species | Taxom |
| Chironomidae Erichson, 1842 | Chironomids | 10 | Species | Taxom |
| Chloropidae Schoenherr, 1840 | Chloropid flies | 1 | Species | Taxom |
| Chrysomelidae Latreille, 1802 | Casebearers | 7 | Species | Taxom |
| Cicadellidae Latreille, 1802 | Cicadellids | 1 | Species | Taxom |
| Cixiidae Spinola, 1839 | Cixid planthoppers | 1 | Species | Taxom |
| Cleridae Latreille, 1802 | Checkered Beetle | 1 | Species | Taxom |
| Clusiidae Schönherr, 1840 | Clusiid flies | 1 | Species | Taxom |
| Coccinellidae Latreille, 1807 | Coccinelles | 1 | Species | Taxom |
| Coenagrionidae Kirby, 1890 | Narrow-winged damselflies | 3 | Species | Taxom |
| Cosmopterigidae Heinemann & ..., 1876 | Cosmet Moths | 2 | Species | Taxom |
| Cossidae Leach, 1815 | Borers | 1 | Species | Taxom |
| Crambidae Latreille, 1810 | Crambid Snout Moths | 3 | Species | Taxom |
| Culicidae Meigen, 1818 | Mosquito | 24 | Species | Taxom |
| Curculionidae Latreille, 1802 | Ambrosia beetles | 5 | Species | Taxom |
| Delphacidae Leach, 1815 | Delphacid planthoppers | 1 | Species | Taxom |
| Derbidae Spinola, 1839 | Derbid planthoppers | 1 | Species | Taxom |
| Dermestidae Hope, 1840 | Carpet beetles | 2 | Species | Taxom |
| Diapheromeridae Rehn & Hebard, 1909 | Diapheromerid Stick Insects | 1 | Species | Taxom |
| Diapriidae Latreille, 1796 | Diapriid wasps | 0 | Species | Taxom |
| Dolichopodidae Latreille, 1809 | Long legged flies | 0 | Species | Taxom |
| Drepanidae Meyrick, 1895 | Drepanids | 5 | Species | Taxom |
| Drosophilidae Rondani, 1856 | Fruit flies | 1 | Species | Taxom |
| Dytiscidae Leach, 1815 | Diving beetles | 1 | Species | Taxom |
| Ectopsocidae | Outer Barklice | 1 | Species | Taxom |
| Elachistidae Bruand, 1851 | Elachistid moths | 1 | Species | Taxom |
| Elateridae Leach, 1815 | Click Beetle | 4 | Species | Taxom |
| Erebidae Leach, 1815 | Erebid Moths | 28 | Species | Taxom |
| Eucharitidae Latreille, 1809 | Eucharitid wasp | 1 | Species | Taxom |
| Eulophidae Westwood, 1829 | Eulophid wasps | 0 | Species | Taxom |
| Euteliidae Grote, 1882 | Euteliid Moths | 1 | Species | Taxom |
| Forficulidae Stephens, 1829 | Common Earwig | 1 | Species | Taxom |
| Formicidae Latreille, 1809 | Ants | 19 | Species | Taxom |
| Gelechiidae Stainton, 1854 | Gelechiid moths | 1 | Species | Taxom |
| Geometridae Leach, 1815 | Cankerworm moths | 56 | Species | Taxom |
| Gryllidae Bolivar, 1878 | Crickets | 1 | Species | Taxom |
| Halictidae Thomson, 1869 | Flower bees | 2 | Species | Taxom |
| Hesperiidae Latreille, 1809 | Skipper | 23 | Species | Taxom |
| Heteroceridae MacLeay, 1825 | Mud beetles | 1 | Species | Taxom |
| Heteronemiidae Rehn, J. A. G., 1904 | | 1 | Species | Taxom |
| Hippoboscidae Samouelle, 1819 | Keds | 1 | Species | Taxom |
| Histeridae Gyllenhal, 1808 | Clown beetle | 2 | Species | Taxom |
| Hybosoridae Erichson, 1847 | Pill scarab beetles | 2 | Species | Taxom |
| Hybotidae Meigen, 1820 | Dance flies | 1 | Species | Taxom |
| Hydrophilidae Latreille, 1802 | Silver Water Beetles | 3 | Species | Taxom |
| Hydroptilidae Stephens, 1836 | Micro caddisflies | 1 | Species | Taxom |
| Ichneumonidae Latreille, 1802 | Ichneumon flies | 3 | Species | Taxom |
| Lampyridae Latreille, 1817 | Fireflies | 0 | Species | Taxom |
| Lasiocampidae Harris, 1841 | Eggar Moths | 5 | Species | Taxom |
| Leiodidae Fleming, 1821 | Round fungus beetles | 1 | Species | Taxom |
| Lestidae Calvert, 1901 | Spread-winged damselflies | 1 | Species | Taxom |
| Leuctridae Klapálek, 1905 | Needle Or Willow Stoneflies | 1 | Species | Taxom |
| Libellulidae Rambur, 1842 | Chasers | 6 | Species | Taxom |
| Lonchopteridae Curtis, 1839 | Pointed-wing flies | 1 | Species | Taxom |
| Lycaenidae Leach, 1815 | Blue butterflies | 21 | Species | Taxom |
| Lygaeidae Schilling, 1829 | Chinch bugs | 1 | Species | Taxom |
| Mantidae Burmeister, 1838 | Mantids | 1 | Species | Taxom |
| Monophlebidae Signoret, 1875 | Giant scale | 1 | Species | Taxom |
| Mordellidae Latreille, 1802 | Pintail beetles | 1 | Species | Taxom |
| Muscidae Latreille, 1802 | Face flies | 2 | Species | Taxom |
| Mycetophilidae Newman, 1834 | Fungus Gnat | 9 | Species | Taxom |
| Mymaridae Haliday, 1833 | Fairflies | 0 | Species | Taxom |
| Mymarommatidae Debauche, 1948 | False fairy wasp | 1 | Species | Taxom |
| Noctuidae Latreille, 1809 | Armyworms | 54 | Species | Taxom |
| Nolidae Hampson, 1894 | Hatted Caterpillars | 1 | Species | Taxom |
| Notodontidae Stephens, 1829 | Bag Shelter Moths | 5 | Species | Taxom |
| Notonectidae Latreille, 1802 | Back Swimmers | 1 | Species | Taxom |
| Nymphalidae Rafinesque, 1815 | Admirals | 38 | Species | Taxom |
| Oecanthidae (Blanchard, 1845) | Tree cricket | 2 | Species | Taxom |
| Opostegidae Meyrick, 1893 | Opostegid moths | 1 | Species | Taxom |
| Ortheziidae Green, 1896 | Ensign coccids | 1 | Species | Taxom |
| Otitidae (Macquart, 1835) | Picture-winged flies | 1 | Species | Taxom |
| Papilionidae Latreille, 1802 | Apollos | 5 | Species | Taxom |
| Pentatomidae Leach, 1815 | Lesser shield bugs | 1 | Species | Taxom |
| Phasmatidae Roberts, 1944 | Walking sticks | 1 | Species | Taxom |
| Phlaeothripidae Uzel, 1895 | Thrips | 1 | Species | Taxom |
| Phoridae Curtis, 1833 | Coffin Flies | 2 | Species | Taxom |
| Pieridae Duponchel, 1835 | Brimstones | 13 | Species | Taxom |
| Platygastridae Haliday, 1833 | Platygastrid wasps | 0 | Species | Taxom |
| Platystomatidae Schiner, 1862 | Picture-winged flies | 1 | Species | Taxom |
| Ptinidae Latreille, 1802 | Death-watch and Spider Beetles | 0 | Species | Taxom |
| Pyrrhocoridae Dohrn, 1859 | Cotton stainers | 1 | Species | Taxom |
| Reduviidae Latreille, 1807 | Assassin and thread-legged bugs | 1 | Species | Taxom |
| Rhyparochromidae Amyot & Serv..., 1843 | Dirt-colored Seed Bugs | 5 | Species | Taxom |
| Riodinidae Grote, 1895 | Metalmark Butterflies | 1 | Species | Taxom |
| Sarcophagidae Macquart, 1834 | Flesh flies | 1 | Species | Taxom |
| Saturniidae Boisduval, 1837 | And Giant Silk Moths | 1 | Species | Taxom |
| Scarabaeidae Latreille, 1802 | Dung beetles | 9 | Species | Taxom |
| Scelionidae Haliday, 1839 | Scelionid wasps | 1 | Species | Taxom |
| Scydmaenidae (Leach, 1815) | Ant-like stone beetles | 6 | Species | Taxom |
| Silphidae Latreille, 1807 | Burying And Carrion Beetles | 3 | Species | Taxom |
| Sphaeroceridae Macquart, 1835 | Dung flies | 1 | Species | Taxom |
| Sphecidae Latreille, 1802 | Digger & Sand wasps | 3 | Species | Taxom |
| Sphingidae Latreille, 1802 | Hawk Moths | 10 | Species | Taxom |
| Staphylinidae Lameere, 1900 | Rove beetles | 57 | Species | Taxom |
| Syrphidae Latreille, 1802 | Drone flies | 1 | Species | Taxom |
| Tabanidae Latreille, 1802 | Breeze flies | 5 | Species | Taxom |
| Tenebrionidae Latreille, 1802 | Darkling Beetle | 2 | Species | Taxom |
| Tephritidae Newman, 1834 | Fruit flies | 2 | Species | Taxom |
| Termitidae Latreille, 1802 | Higher termites | 3 | Species | Taxom |
| Tettigoniidae Krauss, 1902 | Bush crickets | 1 | Species | Taxom |
| Tineidae Latreille, 1810 | & Allies | 2 | Species | Taxom |
| Tiphiidae Leach, 1815 | Flower wasps | 1 | Species | Taxom |
| Tipulidae Latreille, 1802 | Crane Flies | 3 | Species | Taxom |
| Trigonidiidae (Saussure, 1870) | And Ground Crickets | 2 | Species | Taxom |
| Vespidae Leach, 1815 | And Allies | 3 | Species | Taxom |
| Xyloryctidae Meyrick, 1890 | Flower Moths | 1 | Species | Taxom |
| Zopheridae Solier, 1834 | Cylindrical bark beetles | 1 | Species | Taxom |
| Zygaenidae Latreille, 1809 | Burnet Forester | 1 | Species | Taxom |
