urbpan: (dandelion)
 photo IMGP3300_zpszlsblplu.jpg
A calliphorid fly (bottle fly) warms up on a leaf.

 photo IMGP3303_zpsn0kfogxx.jpg
The reproductive parts of a daylily beckon luridly.

 photo IMGP3304_zpsrfn4z5cy.jpg
Japanese honeysuckle ready for a chance encounter with a hummingbird.

 photo IMGP3310_zps8tarzrpt.jpg
A tiny grasshopper nymph (subadult that hasn't molted into a winged adult) just hours or days old, ready to eat soft tender vegetation.
urbpan: (dandelion)
 photo P1030992_zpslxinggsv.jpg
Downtown St Louis turned out to be a fruitful place to find insects. It helped that I spent several hours in the Missouri Botanical Garden where I found this little guy. He's a male meadow katydid Conocephalus fasciatus*, a singer (a dry buzzing song) and an eater of grasses. The females use a sharp ovipositor to put their eggs in the stems of grasses, ensuring that nymphs have easy access to their host plant.

 photo P1030993_zpsdhxvecs3.jpg

* Banded conehead
urbpan: (dandelion)
 photo IMG_2001_zpsudts7eou.jpg
Imagine my delight when our first excursion into the streets of St. Louis resulted in finding a new (to me) species!

ExpandRead more... )
urbpan: (dandelion)
 photo IMGP2440_zpscahflu8h.jpg
Part of the process of learning to identify little creatures is knowing exactly where to look. Some insects can be distinguished from close relatives by the veins on their wings, different families of spiders have different eye arrangements, and so on. When I caught this common conehead Neoconocephalus sp.*, I didn't know that best view for identifying it would be a very close look at the structure that it is named for. The cones of different coneheads vary slightly, and when you look a conehead in the eyes you get a particular view of the cone, that shows how it is distinctive. As a side note, I could have had a good chance at identifying it if it was a male that I caught in the act of singing. Songs also vary slightly between species, to ensure attraction between insects capable of breeding. Hopefully after I manhandled this one, breaking off a leg in the process, it got on with its business for the night.


*New conehead
urbpan: (dandelion)
 photo P1030700_zpsiu82nn0m.jpg

Story time! When I was a wee lad, playing in the grass and dirt, I used to find field crickets Gryllus pennsylvanicus* all the time. They are fairly large, kind of easy to catch, and totally harmless. I would catch them and play with them and then put them back on the ground. One day--a day of tragic mis-indentification--I tried this, but the large black insect on the ground turned out to be a mud-dauber or similar wasp. For that I earned the most painful sting of my young life, right in the meat of my palm below my fingers. It left a mark that lasted years.

But I still will pick up any insects or spiders I find! I'm just more careful and hopefully more knowledgeable now. This fall field cricket (indistinguishable from the spring field cricket but for chronological habitat) is a large female. You can see her huge needle-like ovipositor between her cerci at the back of her body. The ovipositor which is thankfully NOT modified into a venom-delivering stinger as is the case for many wasps, bees, and ants. Field crickets sing the summer into existence and chirp away into autumn--the chirping is a song made by the male with his little brown wings, to bring a female close by. The frost destroys the crickets, but leaves their eggs behind, to hatch into next year's crickets, to sing us a new summer.

*Pennsylvania cricket, sure why not--it could have been named for any state, really--it occurs in all of them except Florida, Alaska, and Hawaii.
urbpan: (dandelion)
 photo IMGP2409_zpskn0iosgl.jpg
You can tell by the presence of both of my filthy nail-bitten hands as well as the general improvement of photo quality, that these pictures were taken by @cottonmanifesto. The reddish-brown creature in my paws is a Carolina grasshopper Dissosteira carolina.* Bugguide.net informs us that this species is also known as a "road duster." That's about as good as common names get in my opinion.

 photo IMGP2412_zpsfrq6oiuv.jpg
These grasshoppers are usually encountered in dusty places with sparse vegetation. Unpaved driveways seem to be a favorite haunt. They are variably colored, from sandy brown to dusty gray to the red clay color you see above. Often you won't see them against the bare soil until you nearly step on one and it flings itself into the air. Its wings are black with yellowish margins, and it flies with power and speed--if not precision. These grasshoppers can be found almost anywhere in North America that meets their habitat needs.

*My quick and dirty etymological research suggests that the genus means "Double barren."
urbpan: (dandelion)
 photo P1030648_zpsf9x39ara.jpg
There are lots of adult grasshoppers jumping and flying about these days. This may be a red-legged grasshopper, but without a dismayingly close look at male genitals, it is nearly impossible to identify this genus to species.
urbpan: (dandelion)
 photo IMGP2303_zpss9htdpld.jpg
Add another to the ever-growing list of harmless animals that people are inexplicably horrified by. What is the magic formula? Jerky movements? Body-to-leg ratio? I've heard some people refer to camel crickets (family Rhaphidophoridae) as "sprickets" because they think there's something too spidery about them. The fact of the matter is that like millipedes and isopods, camel crickets are detritovores that like dark and humid places. They look weird to us because they have no wings, and may nibble on paper or fabric items, but are otherwise nothing to worry about. A recent citizen science project showed that invasive Asian species are beginning to displace native species.

* "Bearer of needles," I suppose because of the conspicuous spines on the legs.
urbpan: (dandelion)
 photo P1030346_zpso9efavqi.jpg
Young grasshoppers, like this Melanoplus sp.* look just like miniature adults, except that they have no wings. They do have the disproportionate femurs that characterize the group and make long jumps possible. In various places grasshoppers are considered among the worst agricultural pests. In our back yard they're a colorful visitor that eats the weeds and feeds the birds.

*From Greek melano dark, plus suffix -plus, meaning "clad in dark armor"
urbpan: (dandelion)
 photo IMG_6904_zpsbc0d0eef.jpg
There were a couple of these creatures in this porta-potty in Franklin Park.
The most confident identification so far claims that this is Meconema thalassinum, a European insect in the group caled "quiet katydids." It's likely that quiet katydids are not so much quiet as they are singing in a pitch above what we can hear. This species is also called the "drumming katydid" since males will drum a hind leg on their substrate to make a noise, in addition to whatever "silent" singing they are doing. This species was first noticed in North America in the middle of the 20th century, on Long Island, and has been gradually spreading ever since.

Profile

urbpan: (Default)
urbpan

May 2017

S M T W T F S
 123456
78910111213
1415 1617181920
21222324252627
28293031   

Syndicate

RSS Atom

Most Popular Tags

Style Credit

Expand Cut Tags

Expand All Cut TagsCollapse All Cut Tags
Page generated Jul. 3rd, 2025 02:48 pm
Powered by Dreamwidth Studios