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Jan 12, 2019 15:39:34   #
ngrea wrote:
I'm in Sandy Spring(Montgomery county). Our fox squirrels are smaller than yours. Here is a picture of one. They moved into my yard when construction started down the street, but they seem to have moved on now. I'm glad. The grey squirrels are bad enough. The fox squirrels could jump a couple of feet further than the greys can ,and with enough power that they knocked one of the shepherd's crooks over.


Would you get a pic or two of the gray squirrels. Not To be argumentative, but not convinced this is a fox squirrel. That are fully two feet from nose to tail and this time of year are a soft, furry gray with an overwash of the summer color. Belly rarely colored.
And my caveat, I have been wrong before.
Sandy Springs was a quiet place when I used to pass thru in the 90's. Hope it still has the rural appeal.
Bill
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Jan 11, 2019 19:34:19   #
sippyjug104 wrote:
Bill, this is quite amazing. The mites were so small that I could not see them until I shot and posted them and even then they looked like little white "things" under their chins. I could tell that they were critters even then.

I know how fine the mounting pins are, just a hair's width (if I can remember back to when I had hair) so seeing the pin in your picture really illustrates how small the mites are.

Quite impressive effort!


Thank you. The mite, as you can see, is smaller than the pinhead.
Acarologists go directly to Heaven. They went thru hell already.
Bill
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Jan 11, 2019 01:59:16   #
Mark Sturtevant wrote:
It has been a while since I had last posted about dragonflies. All of these, except for the last one, came from the Magic Field. That place is home to many other species of dragonflies as well. I have been greatly aided by the book Dragonflies and Damselflies of the East by Paulson, and of course BugGuide also has its uses. It may be that I am wrong about some of the ID’s, and if so would very much appreciate help from Tony on them.

First is a large darner dragonfly which I think is new to me. It looks to be a male spatterdock darner (Rhionaeschna mutata). A more mature male will have lovely blue eyes, and it may be those that I see flying in the Magic Field from time to time.
Spatterdock1 by Mark Sturtevant, on Flickr

Next are a couple clubtail dragonflies. This seems an exceptionally large family (a large chunk of the book is on just this family), and many are hard to distinguish from each other. So here goes.
The first two appears to be a male and female lancet clubtail (Phanogomphus exilis). The female is eating what may be a robber fly.
Lancet clubtail dragonfly by Mark Sturtevant, on Flickr
Lancet clubtail dragonfly by Mark Sturtevant, on Flickr

Next is a male splendid clubtail (Gomphurus lineatifrons). The pale colors may be because it is young, but some clubtails have pale cream rather than bright yellow markings.
Splendid clubtail dragonfly by Mark Sturtevant, on Flickr

The above clubtails are common in the Magic Field. A couple other species in this family are also found there.

In closing, this is an unidentified teneral meadowhawk that seems a little shy.
Shy dragonfly by Mark Sturtevant, on Flickr
It has been a while since I had last posted about ... (show quote)


What were you using to get these? There seems a gap in my lenses, no mid distance lens. I have tubes. I believe you use a Canon. Thanks in advance.
Bill
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Jan 11, 2019 01:41:35   #
Mark Sturtevant wrote:
Still, a laudable effort! Why do you think they are not phoretic?
The 'official' way to prepare such things is to clear them and mount flat under a microscope cover slip. A microscope would then be used to see them properly. I think I can dig up some protocols.


No need for protocols. Have them. Was a challenge to just get what I got. My reasons for my ID, poor as it is.
These were all on a joint, where the membrane is thinest. Easy feeding. A study of nine Bess Bug species ( not my study) found 51 species of Mesostomatid mites. No mention of phoretic. From what I have seen, phoretic mites are scattered. They also have an anal thread attachment that they can disolve at the time the beetle ride is near the mites food, which may not be the food of the beetle. Not Mesostomatid mites, from what I read. There was very little info without realy digging. I think I am going to get back to the MPE-65. Find another mite and try with that lens. This had less to do with taxonomy, more to do with 'could I get a photo'. Thanks for the interest, Mark.
Bill
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Jan 10, 2019 22:10:59   #
A bit back sippyjug posted a photo of a Bess Bug with mites. He kindly sent them to me, and I believe they are not phoretic(ride hitching) mites. They are one of the 51 Mesostomatid(read parasites) on the nine species of Bess Bugs surveyed. I managed to wash most away so instead of many, I have few, in with some alcohol. I have a few shots of one. To say small is an understatement. These shot with a 4x microscope lens and adapter. DOF is ultra fine. Two hours and about a hundred shots and this is the best. Cannot get mite in fine focus, tho the #00 insect pin seems to be OK. The need for a very fine adjustment for this work is apparent. The ratchet rails are difficult at best. A vernier adjustment??? A microscope stage??? The mites are about .5mm or smaller.
Thanks to all. Hope this proves interesting. It IS time consuming. Quality of these leaves a lot to be desired. I could not get better focus. I am in a third floor condo. Moon and star shots a no go, vibration. I had a ten power lens on for a bit. Could not get enough light, period. Back to working with MPE. It is more forgiving.
Night all.
Bill


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Other side of mite

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Other end of the pin

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The paper tube cuts reflection in the tubes

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The LED lights used

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Jan 10, 2019 14:08:45   #
sippyjug104 wrote:
My vertical/horizontal macro rail stand arrived today so I had to put it together and try it out. In the photos below are images of it with the manual 4-way macro rail with an alligator clip to hold the subject and it also accommodates my 4x4 lab scissor jack for shots that require a flat surface which I used for this image.

I cut the bottom out of a 10-oz. translucent plastic drink cup and placed it over one of my crickets that I set on a piece of twig to stage this shot. I illuminated the cup with two gooseneck LED's from opposite sides and from the front with a disk LED gooseneck lamp. This essentially created a "light tube" to illuminate the cricket.

The camera was set at a shutter speed of 1/30th second and the lens was set at 2X with an f-stop of f-11.

Thanks in advance to all those who view and your comments, suggestions and critique are highly valued and appreciated.
My vertical/horizontal macro rail stand arrived to... (show quote)

A side note. I went on line, found the jack, runs from under $15 to over $60. So I found one for $65 with a make offer note. I offered $16 or so. NO. I ordered one for about $15 to my door, same item, from another vendor. I post this here to show that if you buy on line INVEST, INVESTIGATE. Then you can buy more goodies.
Exemplary work, Gary.
Bill
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Jan 10, 2019 11:00:22   #
sippyjug104 wrote:
My vertical/horizontal macro rail stand arrived today so I had to put it together and try it out. In the photos below are images of it with the manual 4-way macro rail with an alligator clip to hold the subject and it also accommodates my 4x4 lab scissor jack for shots that require a flat surface which I used for this image.

I cut the bottom out of a 10-oz. translucent plastic drink cup and placed it over one of my crickets that I set on a piece of twig to stage this shot. I illuminated the cup with two gooseneck LED's from opposite sides and from the front with a disk LED gooseneck lamp. This essentially created a "light tube" to illuminate the cricket.

The camera was set at a shutter speed of 1/30th second and the lens was set at 2X with an f-stop of f-11.

Thanks in advance to all those who view and your comments, suggestions and critique are highly valued and appreciated.
My vertical/horizontal macro rail stand arrived to... (show quote)

Good morning. I see you are online.
Impressive rig. The higher x microscope lens would work with it. The finite adjustment capabilities and lack of movement, along with your expertise assure some eye popping work come spring.
Keep at it. Your lead is upping the bar all around. So time to practice.
Bill
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Jan 8, 2019 21:34:23   #
sippyjug104 wrote:
Thanks, Mark. If I keep plugging along eventually I may get a good one from time to time. Controlling the background is a challenge in itself. I find it quite interesting how fast the light falls off from the source to the background. A bright white paper towel a just few inches away appears to be grey.

Photography truly is painting with light.


I believe the law is that light diminishes with the square of the distance.
Bill
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Jan 7, 2019 13:32:34   #
ngrea wrote:
Today was the first busy day at the bird feeders this fall. I put the first birdseed out last week, and have had nothing but squirrels until today. The trail camera did get one deer nosing around last night. Trying to stretch her neck to reach a feeder. The construction down the street seems to have caused the fox squirrels to move into my yard. They are more aggressive, and larger, than the grey squirrels. Yesterday they knocked over the post for two of the feeders and then did a victory dance on it.
The last picture shows my camera set up. The nearest feeder is about 2 feet form my camera, and the furthest is about 10 feet. I think the glass must be reflective enough that they can ignore me -- unlike the deer who actively pose for me when I go out the back door. But today the birds, especially the purple finches did some nice posing for me, too.
Today was the first busy day at the bird feeders t... (show quote)


Names Bill. Annapolis. Interesting they you have fox squirrels. Where, may I ask, are you located? I am familiar with Delmarva Fox Squirrels, but not these. Would you post a picture or two. The Delmarva are seen in Presquile in Talbot Co. On Wye Island, in Queen Anne's, and in Blackwater Refuge in Dorchester Co. Two feet head to tail, are twice the size of grey squirrels. More wary than the grey, stick to ground more. Thanks.
Bill
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Jan 7, 2019 12:54:41   #
EnglishBrenda wrote:
Yes, yes and yes again. The improvement is immense, well done.


Thank you. Did seem a bit easier to handle this time. Surprised me.
Bill
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Jan 7, 2019 11:51:37   #
Mark Sturtevant wrote:
I have only small remnants left of a once very large collection. Those are kept in air tight boxes and they seem to be ok. Using napthalene is limited, since the darn stuff evaporates and I wonder what breathing it would do over the long term.


Napthalene is mothballs, if I remember correctly. Repels but not fatal. PDB, paradichlorobenzine, or moth Chrystal's kills. Both stink, and they both sublime. My boxes were made by me, they are tightly fit, I thought. The first instar is minute. They get in and do damage, but cannot get out. When I donated the bulk of mine the first thing they did was super freeze them before adding to general collection. SOP, I was told.
Bill
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Jan 6, 2019 19:33:11   #
Mark Sturtevant wrote:
Yeah, I hate those bug-eating %#¥#!!


They have cost me a lot over the years. A collection of hackles and feathers for fly tying, a Cornell drawer with a series of dragonflies, and about a hundred papered, reared Saterniids worth a few hundred dollars. Not to mention the constant watch over the little I have left. Time for the minus 20 or so F. freezer. I have a theory about predicting the chance of a specimen being damaged by a Dermestid. The chance of damage is proportionately increased by the rarity and value of the specimen.
Bill
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Jan 6, 2019 16:25:22   #
Sorry, Neil
Looking at some of my pin specimens. Carpet beetle larva and Mole cricket.
Used MPE-65 at about two x.
Bill


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Jan 6, 2019 14:16:40   #
Well, the MP-E68, anyway. The spider and beetles were posted before. Hope some improvement since then. Thank you Brenda for the push to use the new lens. This bug's for you.
Bill


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Close up of tibia

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The two beetles,40mm and 13mm tubes

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Before

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Jan 5, 2019 18:10:36   #
napabob wrote:
biggest thing I've fed mine is a full size Katydid, katydidn't live............


That was punny.
Bill
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