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For Insects, Spiders & Their Kin
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National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Mosquitoes and Midges (Culicomorpha) » Non-biting Midges (Chironomidae) » Orthocladiinae » Chasmatonotus

Genus Chasmatonotus

Chasmatonotus atripes · Chasmatonotus bicolor · Chasmatonotus bimaculatus · Chasmatonotus maculipennis · Chasmatonotus unimaculatus

Species Chasmatonotus atripes
Midge - Chasmatonotus atripes - male Wrestling Midges - Chasmatonotus atripes Wrestling Midges - Chasmatonotus atripes Gnat? - Chasmatonotus atripes - female Diptera - Chasmatonotus atripes - male - female Chasmatonotus on lily leaves - Chasmatonotus atripes Fly - Chasmatonotus atripes Chironomidae - Chasmatonotus atripes

Species Chasmatonotus bicolor
Chasmatonotus bicolor

Species Chasmatonotus bimaculatus
Midge - Chasmatonotus bimaculatus - male Midge - Chasmatonotus bimaculatus - male

Species Chasmatonotus maculipennis
black and white midge - Chasmatonotus maculipennis Micro - Chasmatonotus maculipennis Micro - Chasmatonotus maculipennis black and white midge - Chasmatonotus maculipennis black and white midge #3140 - Chasmatonotus maculipennis

Species Chasmatonotus unimaculatus
fast crawling little bug - Chasmatonotus unimaculatus Leaf crawler - Chasmatonotus unimaculatus Midge - Chasmatonotus unimaculatus Hemlock Midge (Chasmatonotus unimaculatus) - Chasmatonotus unimaculatus - male Chasmatonotus unimaculatus? - Chasmatonotus unimaculatus Chasmatonotus sp.? - Chasmatonotus unimaculatus Sciaridae ? - Chasmatonotus unimaculatus Small Flying Insect - Chasmatonotus unimaculatus


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