Puparia from unidentifed species - Ectoedemia populella

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Pygmy Leafmining Moths (Nepticuloidea) » Nepticulidae » Ectoedemia » populella group (Ectoedemia populella group) » Poplar Petiole Gall Moth - Hodges#0052 (Ectoedemia populella)

Photo#1588078

Copyright © 2018 Christopher Adam

Puparia from unidentifed species - Ectoedemia populella

Fredericton, York County, New Brunswick, Canada
August 29, 2018

I collected three Populus grandidentata leaves with galled stems 29 Aug 2018 and stuck them in a jar, after cutting away most of the leaf. One had a possible mine in the remainder of the leaf. Nothing has emerged from the galls, but a larva was observed roaming around the jar. Later two dark brown puparia appeared, and on 7 Sep a fresh (pale yellow) one appeared. A shadow inside appeared to be in different positions.

Images are of the larva - 4mm, the first two puparia (dark brown), the fresh one (light yellow), and the cut leaf. I have no idea what these are, so your opinions are welcome.

Images of this individual: tag all

Puparia from unidentifed species - Ectoedemia populella

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Contributed by Christopher Adam on 7 September, 2018 - 6:40pm
Last updated 8 September, 2018 - 6:35pm

Moved

Moved from Unidentified Leaf Mines.

These did emerge from the galls (and those are cocoons, not puparia).

… Charley Eiseman, 8 September, 2018 - 6:35pm

Are they going to overwinter in soil?

… Christopher Adam, 8 September, 2018 - 8:02pm

They don't need soil

but yes, they will overwinter before adults emerge. I've never reared this species, but as it happens I just collected a few galls today to give it a shot.

… Charley Eiseman, 8 September, 2018 - 8:42pm

! again

I searched and eventually found a tiny hole on the gall, covered by skin. Amazingly hard to detect.

One thing that would be valuable, Charley, is to have a list of species that overwinter and in what medium. I guessed that these would overwinter since it's so late in the year, but others I have no clue about.

… Christopher Adam, 8 September, 2018 - 9:06pm

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