Aquatic Insects of Michigan
by Ethan Bright, Museum of Zoology Insect Division and School of Natural Resources and Environment
University of Michigan
- Home
- Species Lists
- Coleoptera
- Diptera
- Ephemeroptera
- Acanthametropodidae
- Ameletidae
- Ametropodidae
- Arthropleidae
- Baetidae
- Baetiscidae
- Behningiidae
- Caenidae
- Ephemerellidae
- Ephemeridae
- Heptageniidae
- Isonychiidae
- Leptohyphidae
- Leptophlebiidae
- Metretopodidae
- Neoephemeridae
- Oligoneuriidae
- Palingeniidae
- Polymitarcyidae
- Potamanthidae
- Pseudironidae
- Siphlonuridae
- Heteroptera
- Hymenoptera
- Lepidoptera
- Megaloptera
- Neuroptera (Sisyridae)
- Odonata
- Orthoptera
- Plecoptera
- Trichoptera
- Other Orders
- Keys/Identification
- Aquatic Insects of Michigan
Siphlonueridae (Gray Drakes) of Michigan - Identification
Nymphs
(adapted from Waltz and Burian 2007)
| 1a | Ab1-2 gills with double lamellae | Siphlonurus Eaton |
| also: Gills on Ab1-2 subtriangular, broadest near apex; claws of middle and hind legs slightly longer than those of forelegs | ||
| 1b | Ab1-2 gills with single lamellae, more or less oval | Parameletus chelifer Bengtsson |
Adults
(adapted from Waltz and Burian 2007)
| 1a | Vein of MP of hindwings simple, unforked | Parameletus chelifer Bengtsson |
| 1b | Vein of MP of hindwings forked | Siphlonurus Eaton |
| also: Abdominal sterna usually with dark spots, longitudinal stripes, oblique strips, U-shaped marks, or dark |
References
-
Waltz RD, Burian SK. 2007. Ephemeroptera, pp. 181-236 in Merritt RW, Cummins KW, Berg MB (eds.), An Introduction to the Aquatic Insects of North America, Fourth Edition. Kendall/Hunt Publishing Company, Dubuque, Iowa, USA.
Page created: November 1, 2007; Last edited: November 06, 2013 (EB)