not sure what this is (Assassin Bugs (Family Reduviidae))?

Images taken in a controlled environment or with a posed subject. All subject types.

Moderators: Pau, rjlittlefield, ChrisR, Chris S.

bobfriedman
Posts: 203
Joined: Tue Jul 28, 2009 6:02 pm
Contact:

not sure what this is (Assassin Bugs (Family Reduviidae))?

Post by bobfriedman »

Nikon D800E ,Mitutoyo M Plan APO 5x NA 0.14 200/0
350 stack (40% oversampled on this one)
Image
Last edited by bobfriedman on Tue May 26, 2015 6:41 am, edited 1 time in total.

rjlittlefield
Site Admin
Posts: 21277
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Post by rjlittlefield »

From general appearance and what I can see of the mouthparts, this is one of the "true bugs", order Hemiptera. Both the amount of hair and that bright white spot on the back seem pretty distinctive, but I don't recognize the beast.

What does "40% oversampled" mean in terms of a step size?

--Rik

ChrisR
Site Admin
Posts: 8590
Joined: Sat Mar 14, 2009 3:58 am
Location: Near London, UK

Post by ChrisR »

Do ticks come that small?

Edit - the "white spot", I meant.
Last edited by ChrisR on Tue May 26, 2015 6:27 am, edited 1 time in total.

bobfriedman
Posts: 203
Joined: Tue Jul 28, 2009 6:02 pm
Contact:

Post by bobfriedman »

this bug was quite big about 30mm long... the antennae added additional mm's

40% oversampled means.. that i forgot to reduce the number of steps :) so i don't know exactly but you can calculate it should have been around 250.. i have begun doubling the Mitutoyo DoF 0.014mm for this objective as you pointed out. turns out that antenna at the top added another 2-3mm.

bobfriedman
Posts: 203
Joined: Tue Jul 28, 2009 6:02 pm
Contact:

Post by bobfriedman »

by the way, the white spot was not completely symmetric behind the head with the nose.. which makes me wonder if it was a growth or a parasite.

bobfriedman
Posts: 203
Joined: Tue Jul 28, 2009 6:02 pm
Contact:

Post by bobfriedman »

Nikon D800E ,Mitutoyo M Plan APO 10x NA 0.28 200/0
350 stack

Image

Nikon D800E ,Mitutoyo M Plan APO 5x NA 0.14 200/0
350 stack

Image

bobfriedman
Posts: 203
Joined: Tue Jul 28, 2009 6:02 pm
Contact:

Post by bobfriedman »

i think this may be one of the Assassin Bugs (Family Reduviidae)

rjlittlefield
Site Admin
Posts: 21277
Joined: Tue Aug 01, 2006 8:34 am
Location: Richland, Washington State, USA
Contact:

Post by rjlittlefield »

Thanks for the alternate view of the white spot. Yes, that looks like some sort of parasite, not a feature of the bug itself. On a caterpillar, my first thought would be tachinid fly egg. On a bug like this, I have no idea.

Thanks also for clarification about the step size. So, if I have done the calculations correctly, your step size was actually (250*0.028)/350 = 0.020 mm = 20 microns, same as what Charlie uses.

--Rik

Post Reply Previous topicNext topic