#undecimpunctata

[wildflowers-of-southern-ontario]

Spotted Cucumber Beetle Diabrotica undecimpunctata Chrysomelidae

Photograph taken on September 23, 2022, at Marmora and Lake, Ontario, Canada.

[stopandlook]

Scientific Name: Diabrotica undecimpunctata Common Name(s): Spotted cucumber beetle, southern corn rootworm (larva) Family: Chrysomelidae (leaf beetle) Life Stage(s): Adult Location: Plano, Texas Season(s): Summer

[crevicedwelling]

question about beetles: a ladybug, probably c. undecimpunctata, was stuck in my house, so i worked to release it. it was in a bit of an odd position so it was a bit of a struggle, and i got some kind of yellow-orange fluid on my hands from it. my question is, was that some kind of excrement or defense mechanism? i'm hoping i didn't hurt it, but it seemed healthy and flew well enough. sorry cause i know coleos not necessarily ur specialty but i kept finding contradicting answers abt beetles and waste excretion online

ladybugs often “reflex bleed” as a defense mechanism, squirting their alkaloid-loaded blood from their joints which is toxic and distasteful to predators. I imagine that the loss of blood/toxins is only slightly costly to the beetles, so I wouldn’t worry too much about it

[bluebelly-sun-serpentine]

Look up, look down. (Alnus rubra and Crocosmia × crocosmiiflora and some other green friends. I think our little yellow spotted friend may be Diabrotica undecimpunctata, but I am even worse with bugs than plants, so if a generous entomologist wants to ID I'd love that.).

[horsebeast]

spotted cucumber beetle, Diabrotica undecimpunctata

[fischotterkunst]

Spotted Cucumber Beetle (Diabrotica undecimpunctata)

8/9/22

[woozymitts]

European Paper Wasp (Polistes dominula) ♂ Spotted Cucumber Beetle (Diabrotica undecimpunctata) Great Golden Digger Wasp (Sphex ichneumoneus) Five-banded Thynnid Wasp (Myzinum quinquecinctum) Common Blue Mud-dauber Wasp (Chalybion californicum) Chrysidini sp. Four-banded Stink Bug Wasp (Bicyrtes quadrifasciatus) Megachile sp. Parallel-striped Sweat Bee (Halictus parallelus) Myzinum maculatum ♀ Archytas apicifer? Goldenrod Soldier Beetle (Chauliognathus pensylvanicus) Archytas apicifer? Common Eastern Bumble Bee (Bombus impatiens) ♀ Common Eastern Bumble Bee (Bombus impatiens) ♂ Common Eastern Bumble Bee (Bombus impatiens) ♀ Lobed Mason Wasp (Ancistrocerus antilope) Narrow-headed Marsh Fly (Helophilus fasciatus) Hawthorn Mining Bee (Andrena crataegi)? Vespula Sp.

Foaming at the mouth at the absolute biodiversity in my yard this year! We have this bush in the yard that the wasps, bees and flies are obsessed with, which is where I took most of the pictures.

I also noticed these HUGE flies which I've never seen before. Usually if you even look in the general direction of a fly it immediately takes off but these ones could not care less, I could put my hand right up to them and they didn't move until I physically touched them.

Also once again completely baffled by the people who talk about how "aggressive" and "mean" wasps are and how they constantly get stung. What are you guys doing??? None of the above species gave a single shit about me shoving my macro lens in their faces, and if it was windy I would sometimes grab the branch they were on to hold it steady and none of them even reacted.

The queen bee (which has a stinger unlike the males) also made no effort to sting me, after picking her up for a photo she actually refused to get off of my hand because she wanted to sit on me and groom her face.

We've also had lots of yellowjackets (I'm so bad at IDing them so no idea on species) approaching us recently and checking us out, flying extremely close and looking at us and then flying away. Even if I put my hand up in front of them to see if they want to land they sort of just look at it and then fly away.

Last year there were paper wasps on nests in my yard and they would stare at me warily but never sting me when I photographed them.

Also feel free to ID things on my iNaturalist or correct me on any IDs here!

[jem0418]

Spotted Cucumber Beetle (Diabrotica undecimpunctata) #beetle #insect #rose #photography (at United States) https://www.instagram.com/p/Ckb3S5apF9I/?igshid=NGJjMDIxMWI=

[sorryabout-theblood]

a spotted cucumber beetle (diabrotica undecimpunctata) i got to say hello to today :)

my pic!

[udc793]

The spotted cucumber beetle (Diabrotica undecimpunctata) is a beetle native to North America. The beetle is also a major agricultural pest insect of North America (see also cucumber beetle). (at Arlington, Virginia) https://www.instagram.com/p/ChoDSnJMIrFOHqPnjuiiiGT4vrWRVMrEyCVsts0/?igshid=NGJjMDIxMWI=

[wildflowers-of-southern-ontario]

Spotted Cucumber Beetle Diabrotica undecimpunctata Chrysomelidae

Photograph taken on September 23, 2022, at Marmora and Lake, Ontario, Canada.

[crudlynaturephotos]

[that-crazy-scorpio-man]

Found this cute little spotted cucumber beetle.

[morrak]

Lupinus texensis, Fabaceae.

The one, the only, the too easily fixated upon. Early days for these — last frost was only about ten days ago, which leaves a good six weeks or so until they’re all pod and no petal. DOT mowing crews back off this time of year to allow the more charismatic wildflowers to reseed, which is, I suppose, a good thing. Of course not everything gets such considered treatment.

More rugged stands away from highways — a few of which I’ll hopefully find and share — reliably do better, of course. Early-stage mesquite woodland is where all the cool kids hang out, but even relative benchwarmers like these will be popular enough with insects. Bee traffic hasn’t kicked off in earnest yet, but a few dozen Diabrotica undecimpunctata (cucumber beetle or corn rootworm, depending on which farmer is complaining about it) were spotted (obviously) in these and on neighboring thistle rosettes. Possibly just sheltering from the heavy wind en route to fuck up the newly planted fields across the way.

[adobe-outdesign]

[8/28/20] Spotted Cucumber Beetle, Diabrotica undecimpunctata.

Technically these are considered pests, but they’re pretty so I won’t complain

[onenicebugperday]

@clorpdotcomm​ submitted: Found this little spotted cucumber beetle (Diabrotica undecimpunctata) about a week ago! Hopefully its doing well even though its starting to cool down more here in Iowa.

A very cute beetle pal! They sometimes will overwinter as adults depending on the climate, though Iowa may be too far north for that. Even if their end is near, I’ll be they lived a very satisfying beetle life :)