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Updates from January 14, 2004



Closeup insects by Troutnut from Miscellaneous Wisconsin and the Namekagon River in Wisconsin

Nigronia serricornis (Fishfly) Hellgrammite LarvaNigronia serricornis (Fishfly) Hellgrammite Larva View 5 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetisca laurentina (Armored Mayfly) Mayfly NymphBaetisca laurentina (Armored Mayfly) Mayfly Nymph View 5 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Limnephilus (Summer Flier Sedges) Caddisfly LarvaLimnephilus (Summer Flier Sedges) Caddisfly Larva View 4 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Tipulidae (Crane Flies) Crane Fly LarvaTipulidae (Crane Flies) True Fly Larva View 4 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetisca (Armored Mayflies) Mayfly NymphBaetisca (Armored Mayflies) Mayfly Nymph View 4 PicturesI've only got blurry pictures of this small Baetisca nymph, because it was zooming around the container in a frenzy. Several characteristics, if taken literally, suggest that it may be Baetisca lacustris. However, it's very small and it's the only candidate lacustris I collected among several laurentina specimens, so it's possible this is just an underdeveloped early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) laurentina.
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetisca laurentina (Armored Mayfly) Mayfly NymphBaetisca laurentina (Armored Mayfly) Mayfly Nymph View 4 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetisca (Armored Mayflies) Mayfly NymphBaetisca (Armored Mayflies) Mayfly Nymph View 4 PicturesThis very small, early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.) specimen has some interesting markings, but it's too underdeveloped to identify.
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Hydropsychidae Caddisfly LarvaHydropsychidae Caddisfly Larva View 4 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Chironomidae (Midges) Midge PupaChironomidae (Midges) True Fly Pupa View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Chironomidae (Midges) Midge LarvaChironomidae (Midges) True Fly Larva View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Chironomidae (Midges) Midge LarvaChironomidae (Midges) True Fly Larva View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Maccaffertium vicarium (March Brown) Mayfly NymphMaccaffertium vicarium (March Brown) Mayfly Nymph View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetisca laurentina (Armored Mayfly) Mayfly NymphBaetisca laurentina (Armored Mayfly) Mayfly Nymph View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Atherix (Watersnipe Flies) True Fly LarvaAtherix (Watersnipe Flies) True Fly Larva View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Isonychia bicolor (Mahogany Dun) Mayfly NymphIsonychia bicolor (Mahogany Dun) Mayfly Nymph View 2 PicturesThese three Isonychia nymphs show the variety within the species from a single day at a single collection site.
Collected January 14, 2004 from the Namekagon River in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Gomphidae Dragonfly NymphGomphidae Dragonfly Nymph View 2 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Maccaffertium (March Browns and Cahills) Mayfly NymphMaccaffertium (March Browns and Cahills) Mayfly Nymph View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Maccaffertium (March Browns and Cahills) Mayfly NymphMaccaffertium (March Browns and Cahills) Mayfly Nymph View 3 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Gomphidae Dragonfly NymphGomphidae Dragonfly Nymph View 2 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Maccaffertium (March Browns and Cahills) Mayfly NymphMaccaffertium (March Browns and Cahills) Mayfly Nymph View 2 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Isonychia bicolor (Mahogany Dun) Mayfly NymphIsonychia bicolor (Mahogany Dun) Mayfly Nymph View 2 Pictures
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
Baetisca (Armored Mayflies) Mayfly NymphBaetisca (Armored Mayflies) Mayfly Nymph View 4 PicturesI'm unsure which species this is: it lacks the usual features of B. laurentina, but it's small, so maybe it's just an underdeveloped early instar (Instar: Many invertebrates molt through dozens of progressively larger and better-developed stages as they grow. Each of these stages is known as an instar. Hard-bodied nymphs typically molt through more instars than soft-bodied larvae.). Otherwise, it looks like it might be B. obesa.
Collected January 14, 2004 from unknown in Wisconsin
Added to Troutnut.com by Troutnut on January 25, 2006
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