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
Dipseudopsidae of Michigan - Identification
Adults
(based on Armitage and Hamilton 1990)
| 1a | Males | 2
|
| 1b | Females | 3 |
| 2a(1a) | a. Intermediate appendages completely fused to tergum 10, and heavily sclerotized and fused medially forming a single, acute, upturned lobe | Phylocentropus lucidus (Hagen) |
| b. Apex of phallic apparatus divided into four equal, acute parts | ||
| 2b | a. Intermediate appendages not forming an upturned lobe, and not fused entirely to tergum 10 | Phylocentropus placidus (Banks) |
| b. Apex of phallic apparatus not dividued into four equal, acute parts | ||
| also: Claspers in lateral aspect with a median, longitudinal ridge; in ventral aspect, a row of rod-like setae parallel to the longitudinal axis; spines (usually 3-4) of intermediate appendage restricted to the posterolateral corner of Ab10 | ||
| 3a(1b) | a. In lateral view, vulval scale with the apical margin rounded, bearing an acute dorsal spine | Phylocentropus lucidus (Hagen) |
| b. In ventral view, apical portion of the vulval scale triangular | ||
| c. Sternite of Ab8 with the posterior margin slightly emarginate | ||
| 3b | a. In lateral view, vulval scale with the apical margin rounded but without a dorsal spine | Phylocentropus placidus (Banks) |
| b.In ventral view, apical portion of the vulval scale blade-like | ||
| c.Sternite of Ab8 with the posterior margin deeply emarginate | ||
References
-
Armitage BJ, Hamilton SW. 1990. Diagnostic Atlas of the North American Caddislfy Adults. II. Ecnomidae, Polycentropodidiae, Psychomyiidae, and Xiphocentronidae. The Caddis Press. Athens, Alabama. 150 pp.
Page created: July 19, 2003; Last edited: November 07, 2013 (EB)