louisnastasi's Favorites
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Lucy Braun's Rosinweed (Silphium terebinthinaceum var. luciae-brauniae)Observer
vvoelkerDescription
1000’s of plants at this truly bizarre site. The Silphium seems to be all that is left of what must have been a large prairie, which was gouged and bisected by Rt. 19 in the last ~25 years. There are scattered native species accompanying it, but aside from the junipers, the most abundant here is non-native and invasive species. Although the parts of Bracken County that are not wetland and river-adjacent are under-botanized, it is a bit mind boggling that this population (and the natural community that went with it) went unnoticed by collectors in the past.
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Genus AntistrophusObserver
nfurlanDescription
S. integrifolium - tiny little pimple close to the leaf margin, single larva contained within. Preserved in 95% etOH and en route to @louisnastasi
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Apical Rosinweed Gall Wasp (Antistrophus silphii)Observer
hydaticusDescription
On Silphium
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Genus NeaylaxObserver
seraphinpoudrierDescription
Gall in center of pictures 8, 9, 10
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Tribe AulacideiniObserver
lithostrotionellaDescription
on Prenanthella exigua
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Aulacidea folliotiObserver
cosmopterixDescription
small stem gall on Sonchus asper. 7387
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Compass Plant (Silphium laciniatum)Observer
artemesiaDescription
Giant tap roots
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Genus AulacideaObserver
dortestokholmDescription
Gall on Pilosella lactucella
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Genus NeaylaxObserver
seraphinpoudrierDescription
Thanks @alex_abair for your (quick!) feedback on observation https://www.inaturalist.org/observations/227662948.
I went back to take a few green balls, and open 2. Pictures show what was found.
Videos at https://youtu.be/JBFd6UiQw4E?feature=shared
and https://youtu.be/JR4R8Z9CCJ0?feature=shared
So we have (developing?) galls, @louisnastasi. Your info @friesen5000.
Remember: all with cheap clip-on macro lens attached to cell camera.
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Rosinweed (Silphium integrifolium var. integrifolium)Observer
chalax91Description
Time: 15:29, 22°C, Feels Like 22°C, Partly Cloudy, Estimated 24 Hr Rainfall 0.0 mm, NNE Wind 10 kph, Humidity 50%, Dew Point 11°C, Pressure Falling 1025.1 mb, UV Index 6; Sheffield Towne Weather Station (KILSCHAU41)
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Tribe AulacideiniObserver
seraphinpoudrierDescription
Photos 1 and 2 are wasp 1.
Photos 3 to 6 are wasp 2.
Photos 7 and 8 are wasp 3.
But it could also be 1 or 2 wasps that changes spot.
Same garden as usual, still no signs of galls (unless I don't know what to look for).
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Aulacidea podagraeObserver
annieliveoakDescription
On Lactuca, wild lettuce. Stem galls. East side of Chicot State Park near spillway
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Compass Plant (Silphium laciniatum)Observer
theo_witsellDescription
Tallgrass prairie remnant
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White Rosinweed (Silphium albiflorum)Observer
tylercannonDescription
Hey @joeysantore, here’s a cool remnant limestone prairie spot in Austin
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Roughstem Rosinweed (Silphium radula)Observer
alliumaficionadoDescription
(This observation is for the host plant)
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Cumberland Rosinweed (Silphium brachiatum)Observer
robertlangellierDescription
@destes if this ID is right, might be a county record for Grundy. Northernmost population at least on iNat
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White Rosinweed (Silphium albiflorum)Observer
beethreeDescription
Rock Creek Ranch Park. Silphium Prairie. MPxxx.
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Ngongoni Three-Awn (Aristida junciformis)Observer
alandmansonDescription
With interesting galls.
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Virginia Cup-Plant (Silphium perfoliatum var. connatum)Observer
mswildbee_wpnr
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Virginia Cup-Plant (Silphium perfoliatum var. connatum)Observer
jed_lingenfelter
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Gall Midges (Subfamily Cecidomyiinae)Observer
georgiaslimDescription
On a Silphium
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Observer
scoutingforplantsDescription
Quercus falcata. One leaf w/ multiple galls. Sending to Forbes lab. Ceroptres wasp appeared to be ovipositing into the galls. Ceroptres wasp obs at https://www.inaturalist.org/observations/223867394
Second (Chalcidoid?) wasp appeared in container with leaf/galls. Obs at
https://www.inaturalist.org/observations/223861029
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Slender Rosinweed (Silphium gracile)Observer
annieliveoakDescription
Posting for reference. An unusual gall on this plant is being posted. Generations of unplanted seedlings from native plants in the region. Town of Washington.
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Apical Rosinweed Gall Wasp (Antistrophus silphii)Observer
wildlanderDescription
?
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Genus CeroptresObserver
bill_sheehanDescription
On Quercus alba
Coll 29May2024 KR ROW
Emerged 12Jun2024
24-017
https://gallformers.org/gall/870
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Rhodus cypriusObserver
seanbirkbcDescription
Found on the Salvia in the second photo
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Tribe AulacideiniObserver
annieliveoakDescription
Verbesina virginica. Stem galls located on many stems. Old brown gall on dead stem very near the original plant is shown with larva inside.
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Tribe AulacideiniObserver
seraphinpoudrierDescription
Very tentative ID suggested by app
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Tribe AulacideiniObserver
seraphinpoudrierDescription
Same location, same host as observed the day before: https://www.inaturalist.org/observations/220788455
Can’t tell if it is the same specimen, so new observation.
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Genus CeroptresObserver
tmurray74Description
Several of these wasps emerged from this leaf loaded with galls.
https://www.inaturalist.org/observations/213608832
@megachile
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Gall Wasps and Allies (Superfamily Cynipoidea)Observer
scoutingforplantsDescription
Appeared in container w/ Andricus quercuspetiolicola galls collected on 6-4-24. Sending to Forbes lab in EtOH Gall obs at https://www.inaturalist.org/observations/220566892
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Genus CeroptresObserver
scoutingforplantsDescription
On Q. falcata. Wasp on leaf w/ (probably) Polystepha galls. Sending wasp and leaf to Forbes lab. I thought wasp was recently dead b/c not moving but it moved when I tried to pick it up with tweezers. Put into EtOH.
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Blackberry Seed Gall Wasp (Diastrophus cuscutaeformis)Observer
antoine_guiguet_
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Tribe AulacideiniObserver
lithostrotionellaDescription
stem gall on Prenanthella exigua
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Genus AntistrophusObserver
annieliveoakDescription
Posted separately from other smaller leaf galls, but on same Silphium gracile plant. Lowest leaf, now dead. Collected for researcher. KNF off FS road 249, vicinity of Woodworth
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Genus AntistrophusObserver
annieliveoakDescription
Silphium gracile leaf galls. FS road 249, KNF. Vicinity of Woodworth.
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Genus AntistrophusObserver
alliumaficionadoDescription
very interesting gall!
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Genus AntistrophusObserver
annieliveoakDescription
Last 2 photos show the same plant with normal flower and seed heads. Plant, Silphium gracile, posted separately. Town of Washington, my yard.
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Roughstem Rosinweed (Silphium radula)Observer
patagoniancavyDescription
Is that some sort of gall on it?
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Observer
juan_sphexDescription
Gall on Fumaria c.f muralis. Inside I only found what seems to be a puparium. Thought it was empty until I observed this failed pupa shortly after.
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Gall Wasps (Family Cynipidae)Observer
arc5683Description
I think this might be the sexgen of Neuroterus tantulus, I’ll try barcoding it to verify
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Tribe AulacideiniObserver
lithostrotionellaDescription
stem gall on Prenanthella exigua
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Roughstem Rosinweed (Silphium radula)Observer
connlindajoDescription
After leaving Washington-on-the-Brazos State Historical Site, I made a few observations along the road through Washington, Fayette, and Lee Counties, none of which are in a Texas CNC metroplex.
Second day of the 2024 City Nature Challenge: Global Project.
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Genus AntistrophusObserver
louisnastasiDescription
Yet another new species! Original host gall observation here: https://www.inaturalist.org/observations/167275394
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Gall Wasps and Allies (Superfamily Cynipoidea)Observer
meteorquakeDescription
On Scrophularia lucida, here the ovaries have swollen up to twice the expected capsule size, with the petals still attached.
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Gall Wasps and Allies (Superfamily Cynipoidea)Observer
meteorquakeDescription
On Scrophularia canum subsp. bicolor
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Apical Rosinweed Gall Wasp (Antistrophus silphii)Observer
kzoebelDescription
Collected from a gall on Silphium asteriscus var. latifolium.
Gall was collected on 3 Oct 2023. Two Eurytoma sp. parasitoids emerged 25 Apr 2024. The gall and parasitoid adults were frozen (my incorrect assumption that they were inducers). I waited a week and fearing they were dead, and not wanting them to deteriorate, I opened the gall. I found eight adult inducers and five adult Eurytoma parasitoids. Additionally I found one larva that did not develop. All were dead but all of the adults appeared fully mature and several had begun tunneling out of the gall.
Observation for gall: https://www.inaturalist.org/observations/185363470
Observation for host plant: https://www.inaturalist.org/observations/185363280
Observation for Eurytoma parasitoids found inside the gall: https://www.inaturalist.org/observations/212771463
Observation for undeveloped larva: https://www.inaturalist.org/observations/212771469
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Catsear Gall Wasp (Phanacis hypochoeridis)Observer
nicholasrochaDescription
Host: Hypochaeris glabra
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Genus AulacideaObserver
gonodactylusDescription
Host ID based on previous observations (https://www.inaturalist.org/observations/136309317) from same spot. Could even be the same plant, this is the only Lactuca I could find and looks like a 2 year old stem (galls vacated)
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Catsear Gall Wasp (Phanacis hypochoeridis)Observer
damontigheDescription
Gall host: Hypochaeris glabra
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Tribe AulacideiniObserver
oceanfDescription
Agoseris heterophylla var. heterophylla stem gall
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Genus AntistrophusObserver
marionanoiramDescription
Gall on Uropappus lindleyi
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Genus AntistrophusObserver
zdufranDescription
Undescribed species. Collected these galls for Louis Nastasi.
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Insekten (Class Insecta)Observer
dlbowlsDescription
Gall on Lactuca serriola.
