Chaoborus americanus
Phylum
Arthropoda
Subphylum
Hexapoda
Class
Insecta
Order
Diptera
Family
Chaoboridae
Distinguishing Characteristics
Pre-labral leaf-like appendages
not three times as long as broad
Mandibular fan
with 25 or more rays (O.A. Johannsen, 1934)
Anal fan
with about 25 rays
Ecology
Does not exhibit diel vertical migration (DVM)
Lives almost exclusively in fishless ponds
Tends to be larger and more pigmented than
Chaoborus punctipennis
Additional Pictures
Quicktime Movies
chaoborus2.mov
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Chaoborus americanus
captures
Daphnia rosea
