Thick-headed Flies

• Iowa Bugs - July to October 2023 (68)
• Iowa Bugs - April to June 2023 (88)
• California Butterflies - Summer 2023 (22)
• Iowa Bugs - July to October 2022 (130)
• Iowa Bugs - April to June 2022 (88)
• Arizona - Summer 2021 (260)
• Iowa Bugs - July to November 2021 (127)
• Iowa Bugs - March through June 2021 (108)
• Iowa Bugs; July to October 2020 (115)
• Iowa Bugs; April through June 2020 (143)
• Butterflies of the Rio Grande Valley - November 2020 (126)
• Caribbean Wildlife; November 2019 (116)
• Iowa Bugs; April to October 2019 (121)
• Western Europe - Birds and other Wildlife; November 2018 (234)
• Arizona; July 2018 (116)
• Iowa Bugs: July to October 2018 (97)
• Iowa Bugs: May to June 2018 (107)
• Wildlife of Quintana Roo, Mexico; January 2018 (142)
• Marine Life of Washington; August 2017 (124)
• Iowa Insects; Feb-Sept 2017 (91)
• Total Solar Eclipse; Aug 21, 2017 (3)
• Iowa Bugs; April-July 2016 (93)
• Iowa Bugs; August to November 2016 (104)
• New England; June 2016 (201)
• Iowa Insects and Other Critters; July-December 2015 (138)
• California Wildlife; July 2015 (168)
• Iowa Insects and Other Critters; April-June 2015 (117)
• Marine Life of the Florida Keys; March 2015 (139)
• Iowa Insects and Other Critters; April-June 2014 (112)
• Iowa Insects and Other Critters; July-November 2014 (110)
• Grand Teton and Yellowstone National Parks; Summer 2014 (296)
• Wildlife of Ciha Fen Preserve; Johnson County, IA (107)
• Iowa Insects, Spiders, and Other Arthropods; 2013 (149)
• Arizona Wildlife; 2013 (361)
• Colorado Wildlife; August 2013 (60)
• Arthropods of the Great Smoky Mountains; Summer 2013 (313)
• Nature of the West Indies; December 2012 (88)
• Arizona Wildlife; October 2012 (176)
• Colorado Wildlife and Scenics; July 2012 (140)
• Florida Insects and Spiders; June 2012 (148)
• Wildlife of the Carolina Coast; February 2012 (51)
• Iowa Insects, Spiders, and Other Invertebrates (0)
• Butterflies (447)
• Moths (0)
• 0001-1680 - Micropterigoidea through Cosmopterigidae (168)
• 1681-2700 - Gelechiidae through Cossidae (125)
• 2701-3863 - Tortricidae (294)
• 4618-5509 - Zygaenidae through Crambidae (196)
• 5510-6255 - Pyralidae through Drepanoidea (144)
• 6256-6762 - Geometridae; Macaria through Phigalia (154)
• 6763-7181 - Geometridae; Nacophora through Lophosis (89)
• 7182-7648 - Geometridae; Dysstroma through Lithostege (47)
• 7649-7770 - Epiplemidae through Saturniidae (62)
• 7771-7894 - Sphingidae (84)
• 7895-8032 - Notodontidae (91)
• 8033-8321 - Arctiidae through Lymantriidae (127)
• 8322-8769 - Noctuidae; Pre-Catocala (151)
• 8770-8879 - Noctuidae; Catocala (47)
• 8880-9198 - Noctuidae; Plusiinae through Pantheinae (99)
• 9199-9872 - Noctuidae; Acronictinae through Amphipyrinae (182)
• 9873-10217 - Noctuidae; Cucillinae (56)
• 10218-10640 - Noctuidae; Hadeninae (73)
• 10641-11054 - Noctuidae; Noctuinae (47)
• 11055-11233 - Noctuidae; Heliothinae through Grotellini (37)
• Flies (0)
• Robber Flies (59)
• Syrphid Flies (81)
• Midges, Mosquitoes, and Relatives (88)
• Fruit Flies (42)
• Bee Flies (46)
• Horse and Deer Flies (31)
• House Flies and Relatives (26)
• Tachinid Flies and Relatives (57)
• Signal Flies (12)
• Picture-winged Flies (15)
• Snipe Flies (25)
• Dance and Long-legged Flies (31)
• Soldier Flies and Relatives (41)
• Crane Flies (51)
• March Flies, Fungus Gnats, and Relatives (34)
• Moth Flies (5)
• Thick-headed Flies (18)
• Marsh Flies (13)
• Lance and Lauxaniid Flies (14)
• Mydas and Stiletto Flies (19)
• Pyrgotid Flies (4)
• Stilt-legged Flies (3)
• Vinegar and Shore Flies (18)
• Frit Flies (10)
• Rust Flies (5)
• Miscellaneous Flies (28)
• Caddisflies (28)
• Mayflies (54)
• Stoneflies (8)
• Lacewings and Relatives (43)
• Mantids and Walkingsticks (17)
• Grasshoppers (112)
• Beetles (0)
• Scarab Beetles and Relatives (93)
• Aquatic Beetles (53)
• Lady Beetles (52)
• Long-horned Beetles (157)
• Click Beetles (49)
• Soldier Beetles and Relatives (46)
• Darkling Beetles (38)
• Weevils and Relatives (174)
• Ground Beetles (155)
• Chrysomelids (232)
• Rove Beetles (49)
• Buprestids (32)
• Carrion and Burying Beetles (19)
• Net-winged Beetles (13)
• Tumblers and Wedge Beetles (41)
• Blister Beetles (22)
• Checkered Beetles (14)
• Sap Beetles (23)
• Pleasing Fungus Beetles (18)
• Bostrichoids (29)
• Fireflies (27)
• Toe-winged Beetles and Relatives (12)
• Bark Beetles and Relatives (18)
• Fire-colored Beetles (11)
• Glowworm Beetles (3)
• Marsh Beetles (10)
• Antlike Flower and Leaf Beetles (18)
• Soft-winged Flower Beetles (8)
• Hairy Fungus Beetles (8)
• Clown Beetles (7)
• Bark-gnawing Beetles and Relatives (5)
• Polypore Fungus Beetles and Relatives (9)
• Reticulated Beetles (4)
• Cedar Beetles (2)
• Ship-timber Beetles (2)
• Arachnids (0)
• Crab Spiders (45)
• Wolf Spiders (23)
• Mites and Ticks (27)
• Ground Spiders (17)
• Orb Weavers (103)
• Cobweb Spiders (39)
• Antmimic Spiders (10)
• Mesh Web Weavers (9)
• Pseudoscorpions (2)
• Long-jawed Orb Weavers (15)
• Sheetweb and Dwarf Spiders (18)
• Jumping Spiders (128)
• Harvestmen (9)
• Nursery Web Spiders (21)
• Running Crab Spiders (19)
• Lynx Spiders (11)
• Miscellaneous Spiders (21)
• Sac Spiders (7)
• Miscellaneous Invertebrates (38)
• Barklice (33)
• Earwigs and Silverfish (9)
• Cockroaches and Termites (12)
• Thrips (6)
• Aquatic Bugs (30)
• Leafhoppers (0)
• Alebrini (5)
• Aphrodinae (13)
• Athysanini (27)
• Bahitini (2)
• Chiasmini (5)
• Cicadellinae (37)
• Cicadulini (5)
• Coelidiinae (6)
• Deltocephalini (27)
• Dikraneurini (2)
• Empoascini (10)
• Erythroneurini (33)
• Eurymelinae (28)
• Evacanthinae (3)
• Fieberiellini (1)
• Iassinae (19)
• Limotettigini (15)
• Macrostelini (9)
• Megophthalminae (16)
• Neocoelidiinae (2)
• Opsiini (3)
• Paralimnina (15)
• Pendarini (17)
• Penthimiini (3)
• Phlepsiini (3)
• Scaphoideini (29)
• Scaphytopiini (9)
• Stenometopiini (2)
• Typhlocybini (32)
• Treehoppers (97)
• Plant Bugs (5)
• Deraeocorinae (10)
• Cylapinae (4)
• Isometopinae (1)
• Mirini (84)
• Orthotylinae (42)
• Phylinae (37)
• Stenodemini (11)
• Resthenini (1)
• Cicadas (21)
• Damselflies (139)
• Dragonflies (2)
• Darners (28)
• Skimmers (104)
• Clubtails (54)
• Cruisers (1)
• Baskettails and Relatives (12)
• Stink Bugs and Relatives (84)
• Assassin Bugs (45)
• Miscellaneous True Bugs (50)
• Seed Bugs (38)
• Plant-parasitic Bugs (43)
• Leatherbugs (53)
• Spittlebugs (26)
• Ants (56)
• Bees (125)
• Wasps (0)
• Ichneumon Wasps (146)
• Mason and Potter Wasps (37)
• Sawflies and Relatives (100)
• Paper Wasps (9)
• Spider Wasps (25)
• Square-headed Wasps and Relatives (59)
• Thread-waisted Wasps (18)
• Velvet Ants (14)
• Sand Wasps (30)
• Yellowjackets and Hornets (8)
• Thynnid Wasps (12)
• Chalcidoid Wasps (33)
• Braconid Wasps (72)
• Cuckoo Wasps and Relatives (13)
• Scoliid Wasps (8)
• Miscellaneous Wasps (17)
• Cenitpedes and Millipedes (22)
• Non-insect Hexapods (23)
• Crustaceans (12)
• Planthoppers (116)
• Scorpionflies and Hangingflies (9)
• Crickets (57)
• Katydids (50)
• North American Insects, Spiders, and Other Invertebrates (0)
• Dragonflies (2)
• Skimmers (287)
• Darners (55)
• Clubtails (96)
• Cruisers (8)
• Baskettails and Relatives (24)
• Petaltails (2)
• Spiketails (1)
• Butterflies (0)
• Parnassians (8)
• Swallowtails (88)
• Whites and Orangetips (61)
• Sulphurs (86)
• Coppers (59)
• Hairstreaks and Elfins (93)
• Blues (86)
• Metalmarks (37)
• Snouts (7)
• Milkweed Butterflies (22)
• Heliconians (17)
• Fritillaries (59)
• Crescents and Checkerspots (115)
• Anglewings and Tortoiseshells (46)
• Ladies (19)
• Miscellaneous Brushfoots (18)
• Tropical Brushfoots (12)
• Admirals and Relatives (40)
• Leafwings (13)
• Emperors (26)
• Satyrs and Relatives (56)
• Spread-Wing Skippers (171)
• Grass Skippers (248)
• Giant-Skippers (2)
• Moths (0)
• 0001-1680 - Micropterigoidea through Cosmopterigidae (231)
• 1681-2700 - Gelechiidae through Cossidae (170)
• 2701-3863 - Tortricidae (405)
• 4618-5509 - Zygaenidae through Crambidae (350)
• 5510-6255 - Pyralidae through Drepanoidea (223)
• 6256-6762 - Geometridae; Macaria through Phigalia (324)
• 6763-7181 - Geometridae; Nacophora through Lophosis (249)
• 7182-7648 - Geometridae; Dysstroma through Lithostege (114)
• 7649-7770 - Epiplemidae through Saturniidae (127)
• 7771-7894 - Sphingidae (122)
• 7895-8032 - Notodontidae (135)
• 8033-8321 - Arctiidae through Lymantriidae (258)
• 8322-8769 - Noctuidae; Pre-Catocala (327)
• 8770-8879 - Noctuidae; Catocala (69)
• 8880-9198 - Noctuidae; Plusiinae through Pantheinae (210)
• 9199-9872 - Noctuidae; Acronictinae through Amphipyrinae (300)
• 9873-10217 - Noctuidae; Cucillinae (79)
• 10218-10640 - Noctuidae; Hadeninae (102)
• 10641-11054 - Noctuidae; Noctuinae (79)
• 11055-11233 - Noctuidae; Heliothinae through Grotellini (63)
• Beetles (0)
• Scarab Beetles and Relatives (202)
• Bostrichoids (43)
• Aquatic Beetles (67)
• Lady Beetles (93)
• Long-horned Beetles (323)
• Click Beetles and Relatives (100)
• Soldier Beetles and Relatives (88)
• Darkling Beetles and Relatives (135)
• Weevils and Relatives (274)
• Ground Beetles (242)
• Chrysomelids (406)
• Rove Beetles (57)
• Buprestids (82)
• Carrion and Burying Beetles (24)
• Net-winged Beetles (39)
• Tumblers and Wedge Beetles (55)
• Blister Beetles (64)
• Checkered Beetles (32)
• Sap Beetles (33)
• Pleasing Fungus Beetles (29)
• Fireflies (36)
• Toe-winged Beetles and Relatives (13)
• Bark Beetles and Relatives (21)
• Fire-colored Beetles (18)
• Glowworm Beetles (4)
• Marsh Beetles (14)
• Antlike Flower and Leaf Beetles (20)
• Soft-winged Flower Beetles (19)
• Hairy Fungus Beetles (10)
• Clown Beetles (7)
• Bark-gnawing Beetles and Relatives (5)
• Polypore Fungus Beetles and Relatives (5)
• Reticulated Beetles (4)
• Cedar Beetles (4)
• Handsome Fungus Beetles (2)
• Ship-timber Beetles (2)
• Synchroa Bark Beetles (5)
• False Longhorns (2)
• Arachnids (0)
• Scorpions (23)
• Nursery Web Spiders (28)
• Crab Spiders (69)
• Jumping Spiders (205)
• Mites and Ticks (44)
• Miscellaneous Spiders (23)
• Orb Weavers (167)
• Mesh Web Weavers (12)
• Cobweb Spiders (68)
• Wolf Spiders (36)
• Ground Spiders (29)
• Antmimic Spiders (12)
• Pseudoscorpions (4)
• Long-jawed Orb Weavers (22)
• Sheetweb and Dwarf Spiders (24)
• Harvestmen (16)
• Running Crab Spiders (28)
• Lynx Spiders (25)
• Sac Spiders (8)
• Tarantulas and Relatives (11)
• Cellar Spiders (4)
• Windscorpions (7)
• Funnel Weavers (7)
• Giant Crab Spiders (7)
• Ghost Spiders (10)
• Hacklemesh Weavers (4)
• Crevice Weavers (4)
• Grasshoppers (0)
• Bird Grasshoppers (41)
• Slant-faced and Toothpick Grasshoppers (99)
• Spur-throated Grasshoppers (114)
• Band-winged Grasshoppers (85)
• Monkey Grasshoppers (2)
• Lubber Grasshoppers (22)
• Pygmy Mole Crickets (5)
• Pygmy Grasshoppers (20)
• Flies (0)
• Miscellaneous Flies (36)
• Syrphid Flies (170)
• Robber Flies (108)
• Soldier Flies and Relatives (61)
• Snipe Flies (38)
• Signal Flies (18)
• Fruit Flies (59)
• Frit Flies (11)
• Dance and Long-legged Flies (44)
• Tachinid Flies and Relatives (89)
• Midges, Mosquitoes, and Relatives (91)
• Bee Flies (143)
• Horse and Deer Flies (43)
• House Flies and Relatives (34)
• Picture-winged Flies (24)
• Crane Flies (64)
• March Flies, Fungus Gnats, and Relatives (42)
• Moth Flies (5)
• Thick-headed Flies (21)
• Marsh Flies (16)
• Lance and Lauxaniid Flies (19)
• Mydas and Stiletto Flies (26)
• Pyrgotid Flies (5)
• Stilt-legged Flies (6)
• Vinegar and Shore Flies (18)
• Rust Flies (5)
• Bees (18)
• Miner Bees (17)
• Bumble Bees (31)
• Cuckoo Bees (19)
• Carpenter Bees (16)
• Cellophane and Masked Bees (5)
• Sweat Bees and Relatives (46)
• Leafcutters and Relatives (24)
• Honey and Long-horned Bees (25)
• Leafhoppers (51)
• Aphrodinae (11)
• Cicadellinae (92)
• Coelidiinae (12)
• Deltocephalini (27)
• Eurymelinae (36)
• Evacanthinae (7)
• Iassinae (32)
• Megophthalminae (19)
• Neocoelidiinae (3)
• Typhlocybini (28)
• Athysanini (36)
• Bahitini (2)
• Chiasmini (6)
• Cicadulini (5)
• Limotettigini (12)
• Macrostelini (12)
• Opsiini (5)
• Paralimnina (13)
• Pendarini (22)
• Penthimiini (5)
• Phlepsiini (7)
• Scaphoideini (32)
• Scaphytopiini (9)
• Stenometopiini (5)
• Cochlorhinini (2)
• Fieberiellini (1)
• Hecalini (2)
• Alebrini (5)
• Dikraneurini (3)
• Empoascini (11)
• Erythroneurini (52)
• Caddisflies (49)
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• Mantids (41)
• Miscellaneous Invertebrates (89)
• Barklice (42)
• Earwigs (9)
• Termites and Cockroaches (47)
• Walkingsticks (24)
• Silverfish and Bristletails (8)
• Antlions and Lacewings (78)
• Mayflies (65)
• Stoneflies (17)
• Scorpionflies and Hanginglflies (20)
• Webspinners (8)
• Centipedes and Millipedes (76)
• Fresh Water Crustaceans (35)
• Non-insect Hexapods (30)
• Wasps (96)
• Ichneumon Wasps (159)
• Mason and Potter Wasps (61)
• Sawflies and Relatives (112)
• Paper Wasps (37)
• Spider Wasps (40)
• Square-headed Wasps and Relatives (73)
• Thread-waisted Wasps (35)
• Velvet Ants (42)
• Sand Wasps (36)
• Yellowjackets and Hornets (18)
• Thynnid Wasps (17)
• Chalcidoid Wasps (43)
• Braconid Wasps (79)
• Cuckoo Wasps and Relatives (13)
• Scoliid Wasps (26)
• Miscellaneous Wasps (14)
• Ants (146)
• Seed Bugs (76)
• Plant-parasitic Bugs (58)
• Cicadas (34)
• Leatherbugs (147)
• Stink Bugs and Relatives (178)
• Planthoppers (13)
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• Treehoppers (130)
• Plant Bugs (37)
• Deraeocorinae (12)
• Cylapinae (3)
• Stenodemini (11)
• Resthenini (4)
• Mirini (95)
• Bryocorinae (4)
• Orthotylinae (49)
• Phylinae (33)
• Isometopinae (1)
• Assassin Bugs (97)
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• Fish (227)
• Echinoderms (51)
• Marine Mammals (73)
• Cnidarians (64)
• Marine Reptiles (3)
• Marine Annelids (19)
• Sponges (4)
• United States National Parks and other Scenic Areas (0)
• Grand Teton NP, Wyoming (8)
• Yellowstone NP, Wyoming (176)
• Bryce Canyon NP, Utah (12)
• Zion NP, Utah (15)
• Mono Lake, California (4)
• Yosemite NP, California (6)
• Rocky Mountain NP, Colorado (7)
• Great Smoky Mountains NP, Tennessee and North Carolina (8)
• Coral Pink Sand Dunes State Park, Utah (4)
• Glacier NP, Montana (23)
• Olympic NP, Washington (9)
• Great Sand Dunes NP, Colorado (4)
• Grand Staircase-Escalante NM, Utah (10)
• Page, Arizona and Vicinity (24)
• Monument Valley, Arizona (10)
• Miscellaneous Utah Landmarks (3)
• Canyonlands NP, Utah (24)
• Arches NP, Utah (33)
• Grand Canyon NP, Utah (13)
• Iowa Bugs; Most Recent Additions (6)