chyroptera's Favorites
Photos / Sounds
What
Rhododendron Leaf Gall (Exobasidium rhododendri)Observer
annieliveoakDescription
On Rhododendron indicum. Woodland slope on Washington Garden Club property.
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Observer
meravDescription
gall on Western Azalea (Rhododendron occidentale) posted here - https://www.inaturalist.org/observations/30850636
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What
Fimbriate Gall Wasp (Andricus opertus)Observer
dwirtalaDescription
on Quercus garryana
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What
Genus CystothecaObserver
yerbasantaDescription
Light brown growth on Quercus agrifolia leaf underside. Spores in 1st photo?
Chasmothecia(?) in photo 2 matches appearance seen in this paper?:
https://journals.ashs.org/downloadpdf/journals/hortsci/57/10/article-p1289.pdf
Photos 6, 7, 10, 11 appear to show the ornamented chasmothecia/perithecia hyphal appendages:
https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/erysiphaceae
https://onlinelibrary.wiley.com/doi/10.1111/efp.12742
https://www.sciencedirect.com/science/article/abs/pii/S095375620700130X
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Golovinomyces or Erysiphe?
Amended note (11/19):
Probably not downy mildew based on seemingly not being restricted to lower surface?
Other similar observations in the area on same host (Quercus agrifolia):
https://www.inaturalist.org/observations/191495698
https://www.inaturalist.org/observations/169798850
https://www.inaturalist.org/observations/168032122
https://www.inaturalist.org/observations/167625572
Research notes from:
https://pubmed.ncbi.nlm.nih.gov/30743683/
"White superficial conidia of the powdery mildew fungus occurred on adaxial and abaxial surfaces. However, the white powdery growth was more abundant on the adaxial surface. Leaf symptoms commonly appeared white from May to October. Along with the typical white powdery mildew, spot and/or necrotic symptoms with irregular violet-to-wine red surfaces were also frequently observed on overwintered leaves"
"Major genera including Cystotheca, Erysiphe, Microsphaera, and Phyllactinia have been reported to cause powdery mildews on Quercus plants. Until now, 22 Erysiphe species including E. abbreviata, E. alphitoides, E. calocladophora, E. gracilis, E. polygoni, and E. quercicola have been reported to cause powdery mildews on Quercus spp."
Photos / Sounds
Observer
nancyasquithDescription
On Grindelia stricta, I believe.
The two leaves in photo 1 probably show two different stages of the same gall.
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What
Gall and Forest Midges (Family Cecidomyiidae)Observer
flammulatedDescription
Galls along midribs of young Oregon Ash leaves. The gall part of each leaf feels hard and thickened to the touch, and folds upward to form a pocket. I opened a couple of them and found several small larvae inside the pockets (see photos).
This looks a lot like the galls described here:
https://www.gallformers.org/gall/3035
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What
Heartleaf Twayblade (Neottia cordata)Observer
apetroneDescription
Forked labellum present. Flower parts in three. Two green bracts.
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What
Robber Flies (Family Asilidae)Observer
jcsullivanDescription
I couldn't find whatever emerged from this dead tree trunk along the river. There were six exoskeletons left behind, still hanging out of the snag.
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What
Trembling Aspen (Populus tremuloides)Observer
ribes2018Description
Lane Community College Native Plant Landscape surrounding Bldg 16:
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What
Oyster Gall Wasp (Neuroterus anthracinus)Observer
giantcicadaDescription
on english oak, quite small
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What
Arthropods (Phylum Arthropoda)Observer
giantcicadaDescription
deformed-looking bud growth on doug fir, only guessing that it's gall-related
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Genus DasineuraObserver
giantcicadaDescription
galled leaved on upper leaves of Urtica dioica; compare https://www.inaturalist.org/observations/61687845, https://www.inaturalist.org/observations/140209479
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What
Physoderma trifoliiObserver
giantcicadaDescription
galls or warping on Trifolium repens
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What
Leichtlin's Camas (Camassia leichtlinii)Observer
shannon_forsbergDescription
Albino individual
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What
Prodiplosis morrisiObserver
birdernaturalistDescription
On Quaking Aspen – gall or disease from virus or bacterium? I tried unrolling the edges and found no eggs or larvae.
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What
Western Starflower (Lysimachia latifolia)Observer
ribes2018Description
Lysimachia latifolia
western starflower
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What
Jumping Gall Wasp (Neuroterus saltatorius)Observer
dwirtalaDescription
bisexual generation on Quercus garryana
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What
Elm Leafminer (Fenusa ulmi)Observer
harsiparkerDescription
On elm (Ulmaceae: Ulmus sp.)
Unfortunately, I neglected to take a nice photo series of the plant itself at the time that I took these shots, but I'm fairly certain it is the same species of elm which Chris documented in this observation:
https://www.inaturalist.org/observations/13220032
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What
Liriomyza Leaf-mining Flies (Genus Liriomyza)Observer
harsiparkerDescription
One of many leafmines present on Scotch Broom (Fabaceae: Cytisus scoparius) growing in meadow/field habitat. Photo 1 shows the upper surface of leaf; Photo 2 shows the underside of leaf; Photo 3 is the upper surface of leaf backlit with flashlight from cellphone.
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What
Honeysuckle-Umbellifer Aphids (Genus Hyadaphis)Observer
brnhnDescription
Honeysuckle galls
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What
Californian Woolly Oak Aphid (Stegophylla essigi)Observer
brnhnDescription
On Oregon oak
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What
Fern Leaf Curl Fungus (Taphrina californica)Observer
emmasheltonDescription
On Dryopteris arguta.
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What
Nettle Pouch Gall Midge (Dasineura urticae)Observer
aruejohnsDescription
Could just be leaf discoloration, but seems to match description. Hand for focus, not touching!
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What
Oregon White Oak (Quercus garryana var. garryana)Observer
eralversonDescription
Vickery County Park. The ancient one managed to survive the January 2024 ice storm. See also https://www.inaturalist.org/observations/24242948
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What
Genus FeronObserver
dwirtalaDescription
syn.Andricus pedicellatus on Quercus garryana
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What
Genus FeronObserver
augustjacksonDescription
Likely sexgen gall of this genus. Similar to Feron pattersonae, but agamic galls of that species are not present in the region. Possibly the sexgen of our undescribed plate gall.
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What
Chokecherry Midge (Contarinia virginianiae)Observer
erikamitchellDescription
On Prunus virginiana
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What
Taphrina confusaObserver
guidingguidaDescription
Fungal gall on Chokecherry flowers
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Red Nail Gall Mite (Eriophyes tiliae)Observer
sedgequeenDescription
On what may be leaves of Tilia x europea.
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What
Fimbriate Gall Wasp (Andricus opertus)Observer
dwirtalaDescription
on Queicus garryana
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What
Pacific Dune-Digger (Habropoda miserabilis)Observer
bradmoonDescription
With phoretic nest parasite beetles, which have their own observation here
For more information about this species, see articles here, here, and here.
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What
Thirteen-spotted Lady Beetle (Hippodamia tredecimpunctata)Observer
velella_velella
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Genus NeolasiopteraObserver
james_arthuraDescription
This is the first year I have ever noticed these galls forming. I have seen them on a majority of Stachys observed in the region as of August 2023. These galls were not present in the last 3-4 years since I have been observing Stachys.
https://www.gallformers.org/gall/3020
https://www.inaturalist.org/observations/88781124#identification-6040c2b0-f087-4622-9032-6382a68a1560
@cosmopterix
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What
Aceria kiefferiObserver
cjurnesDescription
Something was growing on these spent yarrow flowers!
