Pectinate grooming spur of a paper wasp (Polistes dominulus)

Earlier images, not yet re-categorized. All subject types. Not for new images.

Moderators: rjlittlefield, ChrisR, Chris S., Pau

rjlittlefield
Site Admin
Posts: 21444
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Pectinate grooming spur of a paper wasp (Polistes dominulus)

Post by rjlittlefield »

Image

Somehow you folks got me started on grooming spurs. This is from one of the Polistes dominulus wasps featured in an earlier posting. The structure of the wasps' grooming apparatus is conceptually similarly to that of the Pogonomyrmex flying ants that I posted earlier, but the details are very much different.

--Rik

Technical:
Canon 300D camera, 10X NA 0.25 microscope objective on 150mm extension, 95 frames stacked at 0.00025" spacing. Dual fiber illuminator with Kleenex tissue diffuser. Helicon Focus with manual retouching of stacking halo and physical debris on the specimen.

Ken Ramos
Posts: 7208
Joined: Thu Jul 27, 2006 2:12 pm
Location: lat=35.4005&lon=-81.9841

Post by Ken Ramos »

Well if I had any hair to groom, I would be thankful for a comb but of course it would be better than lying in the driveway and licking yurself too! :shock: :lol: Hey great shot there Rik! :smt023

beetleman
Posts: 3578
Joined: Fri Aug 04, 2006 4:19 am
Location: Southern New Hampshire USA

Post by beetleman »

An excellent closeup Rik. Incredible detail & sharpness. Awesome results for all your effort.
Take Nothing but Pictures--Leave Nothing but Footprints.
Doug Breda

Walter Piorkowski
Posts: 693
Joined: Mon Aug 14, 2006 6:42 pm
Location: South Beloit, Ill

Post by Walter Piorkowski »

As Doug said, excellent detail and focus. I really like how you were able to get enough light through the subjects translucent body to bring out details on the opposite side. I assume some quality backlighting was involved?
Walt

rjlittlefield
Site Admin
Posts: 21444
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Post by rjlittlefield »

Thanks for the compliments, guys. :D
Walter Piorkowski wrote:I assume some quality backlighting was involved?
Um, gee, it's hard to say. The setup for this beast is illustrated here, over in the Technique forum. There's a gray card behind the subject, a Kleenex tissue tent around the subject and lens, and I just played with the fiber heads until the thing looked right. From the position of the lights that I remember, there would have been little or no direct illumination from in back of the focus plane. On the other hand, there would have been a fair amount from only slightly in front of the focus plane, which could act a lot like "darkfield" and brighten up the subject compared to the background.

In direct examination under a dissecting scope, what struck me was the crystal transparency of the lower part of the grooming spur, and I played with the illumination until that aspect came through in the photo.

Don't know what else I can say, Walt. I always hate to admit that it's a mystery why one of my pics came out good, but, um, it's a mystery? :? :roll:

--Rik

Post Reply Previous topicNext topic