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Photo#535034
Podisus nymph, testing out a key - Podisus serieventris

Podisus nymph, testing out a key - Podisus serieventris
Columbia, Grindstone Park, Boone County, Missouri, USA
June 23, 2011
Okay, so I found this key at work for determining Podisus nymphs. It's located here

In order to test and see if this key can be used to move a bunch of these Podisus nymphs we have, I'm going to carry out a little experiment and would LOVE to have other people join in on the fun. I'll be collecting as many Podisus nymphs from the field as I possibly can and photographing and keying them out according to the key I've provided. I'll raise each nymph to adulthood, and we'll see how reliable the key is. The earlier the instar of the nymph, the better. (This one is already a 5th instar).

This one, unfortunately keys out to the super-common Podisus maculiventris, and I suspect that's probably what it will be. I'm greatly hoping that I can get some other species of Podisus to try this out on.

Forum topic here

Images of this individual: tag all
Podisus nymph, testing out a key - Podisus serieventris Podisus nymph, testing out a key - Podisus serieventris - male Podisus nymph, testing out a key - Podisus serieventris - male Podisus nymph, testing out a key - Podisus serieventris - male Podisus nymph, testing out a key - Podisus serieventris - male

P. serieventris or maculiventris?
Hi, Andrew. Text says it keys out as maculiventris, but it's filed under sereiventris. I (re)found what I imagine is the same key here: http://www.biodiversitylibrary.org/page/16218387#page/102/mode/1up. I'm not seeing the yellow-orange patches on the anterior abdomen that are supposed to be diagnostic of maculiventris.

I have 1 of my own I'm trying to ID, just posted here: http://bugguide.net/node/view/952038

Cheers,
-Anita

 
Right
The key thought this nymph was P. mac, but upon rearing this individual to adulthood, it turned out to be P. serieventris. Meaning that key is probably not all that reliable.

If you've still got that individual you're trying to have ID'd, it would be a huge help if you could raise it to an adult. My e-mail is on my account page and I could walk you through rearing it fairly easily. Thanks!

 
Nope, just a random backyard bug
that I snapped a pic of. I'll keep my eye out for them in the future, though.

Are we looking at the same key? Because I don't have a lot of experience with these, but as I read it, maculiventris should have yellow or orange on the anterolateral abdomen (ie, partially hidden by the wingpads here), & yours looks pretty solidly the same off-white as the rest of the abdomen to me. Maybe there's some subtle color there & I'm just missing it, but maybe we're looking at 2 different keys -- they original link was broken, so I just googled it.

 
Whoops, I see what you're sayingThe folks I've talked to
The folks I've talked to have indicated that the key might be a bit outdated and not to rely on it. I ended up getting to work with this species for close to five years in college and noticed and noticed large amount of variability in the nymphs that kind of contradicts the key or at least renders it incomplete.

The patches do look a little bit lighter than the key calls for, but I didn't think they were white like serieventris. I see what you're saying though. Maybe it keys better than I thought. I'll have to see if I can't find some nymphs this summer to rear out to adulthood to tell for sure.

Moved
Moved from Podisus.

Moved

Moved
Moved from Podisus.

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