Search found 1252 matches

by MarkSturtevant
Sat Jul 24, 2021 7:22 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Green tortoise beetle, Cassida viridis
Replies: 2
Views: 83

Re: Green tortoise beetle, Cassida viridis

An interesting perspective. We have a similar species in the same genus that uses thistle as its host plant. The larvae of tortoise beetles are really weird as they look like spiny trilobites.
by MarkSturtevant
Wed Jul 21, 2021 7:56 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Hoverfly
Replies: 2
Views: 126

Re: Hoverfly

Very well done!
by MarkSturtevant
Wed Jul 21, 2021 7:55 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Cicada damage
Replies: 1
Views: 88

Re: Cicada damage

We had plenty about 2 hours south of me, and I went to see the natural wonder a couple times. Alas, I did not follow thru with my plan to collect some of the egg laden twigs to later see the hatchlings. The first instar is oddly long and skinny.
by MarkSturtevant
Wed Jul 21, 2021 7:52 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Critters from Itri, Italy
Replies: 2
Views: 156

Re: Critters from Itri, Italy

Excellent as always!
by MarkSturtevant
Mon Jul 19, 2021 5:53 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Poisonous Beetle
Replies: 2
Views: 167

Re: Poisonous Beetle

Very nice. We have a similar species down here, but it does not have the nifty branched antennae.
by MarkSturtevant
Thu Jul 15, 2021 6:54 am
Forum: Photography Through the Microscope
Topic: Bacteria from the teeth (video)
Replies: 3
Views: 1597

Re: Bacteria from the teeth (video)

I don't think you want to entirely get rid of oral bacteria. They help you in a wide range of ways.
It was Antonie van Leeuwenhoek who first discovered bacteria ("animalcules") in much the same fashion in the 1600s.
by MarkSturtevant
Thu Jul 15, 2021 6:46 am
Forum: Nature Photography -- Macro and Close-up
Topic: My local dragonflies
Replies: 6
Views: 247

Re: My local dragonflies

Those are beautiful. That 2nd one is very special!
by MarkSturtevant
Sat Jul 10, 2021 8:44 pm
Forum: Macro and Micro Technique and Technical Discussions
Topic: Insect - double mounting
Replies: 4
Views: 351

Re: Insect - double mounting

Very good. I expect you know about minutien pins for the smaller pin in these kinds of mounts (one is next to the dime): https://www.fishersci.com/shop/products/0-1mm-minutien-pins-500-pk/NC9677548 Its safest to keep these tiny needles with a magnet to keep them in place. Drop one, and its hard to f...
by MarkSturtevant
Fri Jul 09, 2021 2:36 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Fruit Fly
Replies: 2
Views: 185

Re: Fruit Fly

Beautiful work!
by MarkSturtevant
Fri Jul 09, 2021 2:33 pm
Forum: Nature Photography -- Macro and Close-up
Topic: Z českých luk a hájů
Replies: 4
Views: 214

Re: Z českých luk a hájů

Beautiful work! All very nicely composed and processed. Well done!
by MarkSturtevant
Fri Jul 09, 2021 7:23 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Lesser Stag Beetle, Dorcus parallelipipedus, male
Replies: 9
Views: 342

Re: Lesser Stag Beetle, Dorcus parallelipipedus, male

This is a slightly more elaborate example in lizards where there are 3 kinds of males. One is antagonistic and holds harems of females. One is monogamous, and the third is a sneaker male. https://www.youtube.com/watch?v=rafdHxBwIbQ
by MarkSturtevant
Thu Jul 08, 2021 8:47 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Primitive mantis in burmese amber
Replies: 5
Views: 243

Re: Primitive mantis in burmese amber

Very interesting. I don't know the future, but this fossil may be very important on this subject.
by MarkSturtevant
Wed Jul 07, 2021 5:04 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Lesser Stag Beetle, Dorcus parallelipipedus, male
Replies: 9
Views: 342

Re: Lesser Stag Beetle, Dorcus parallelipipedus, male

This is lovely work! The eyes do look strange. They should be compound eyes, but here the facets seem to not have visible borders. That this is a "lesser" stag beetle is also interesting. This seems to represent a kind of male which is seen thru-out the animal kingdom. Sexual selection in animals co...
by MarkSturtevant
Wed Jul 07, 2021 4:32 pm
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Ptačí paraziti
Replies: 4
Views: 154

Re: Ptačí paraziti

Very interesting!