Phrynus sp Nicaragua being maesi?

Sarkhan42

Arachnoangel
Joined
Dec 29, 2015
Messages
900
that's somehow a strange question... if they reproduce succesfully and if the offspring F1, F2... is fertil, they are per definition one species.
That is of course, using the classical biological species concept :) I feel particularly the work of De Queiroz on a modern unified species concept would be preferable at this point given what we now know- viable hybridization in different chromosomal counts, ring species, etc.

This is not at all intended to spark argument, just for interesting discussion!

For those who may not be familiar but are interested in the topic: https://academic.oup.com/sysbio/article/56/6/879/1653163
 

mantisfan101

Arachnoprince
Joined
Dec 26, 2018
Messages
1,755
Well im checking species today. I have 3 females with eggs that I bred, and one batch is hatching soon, as postembryos are visible, so Ill get back to you on that :)
How did you get yours to drop eggs? I've been waiting for one female to lay eggs for a few months now, with no sign of development
 

ThemantismanofPA

Arachnoknight
Joined
Oct 25, 2017
Messages
213
How did you get yours to drop eggs? I've been waiting for one female to lay eggs for a few months now, with no sign of development
So I mated mine on cork bark, then kept her on cork bark under pretty much direct heat with 80% humidity until she dropped eggs, in which case i removed her from direct heat (being kept at about 70 currently) and humidity lowered to 60%. She mated in december, eggs laid on march 15, postembryos on april 15th, should hatch any day now
 

Banshee05

Arachnolord
Old Timer
Joined
Aug 16, 2005
Messages
635
That is of course, using the classical biological species concept :) I feel particularly the work of De Queiroz on a modern unified species concept would be preferable at this point given what we now know- viable hybridization in different chromosomal counts, ring species, etc.

This is not at all intended to spark argument, just for interesting discussion!

For those who may not be familiar but are interested in the topic: https://academic.oup.com/sysbio/article/56/6/879/1653163
sure, completely agree. There are more than 100 different definitions out there... I am not in the position to discuss about its fundamental rules and if they are reliable or not, BUT..
what I intend to say here, and that's maybe the point for hobbiest while breeding a species, keeping one species by one and do not mix them up. Never! Hybrids may work 1-2-3 generations but then it can end, also it can occur that you mate a hybrid with a 'normal' one and it does not work anymore etc.
So keeping one population for itself, makes always sense for breeding purposes.
 

wizentrop

to the rescue!
Old Timer
Joined
Apr 20, 2005
Messages
615
Ha, that's funny - My P. "whitei" from Honduras which are very similar to this one in general appearance but are very likely a different species also hatched today! Good timing.
Edit: It's also a good opportunity to show mine.
Phrynus-whitei-hatched.jpg
 
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ThemantismanofPA

Arachnoknight
Joined
Oct 25, 2017
Messages
213
Nice! I have still yet to get mine to drop an eggsac...
I have 2 more females which I have been waiting on for months to drop the eggsac, I really dont know how i got the first to work.. Gonna have to start experimenting with enclosures and such.

Also, did some work yesterday on my male, I am pretty confident he is whitei :) Now all i have to do is wait for the babies to disperse and ID the mother!
 

ThemantismanofPA

Arachnoknight
Joined
Oct 25, 2017
Messages
213
Babies have molted off as of last night, looking at around 30 as of now, will get the final count later today. Also should be able to see if the female is whitei or maesi tonight, so I'll keep you all informed 👍
 

ThemantismanofPA

Arachnoknight
Joined
Oct 25, 2017
Messages
213
the babies are not hybrids! Missed a few spines when I ID'd the male, went back last night with a 40x lens and found out he and my female were in fact maesi.
 

Banshee05

Arachnolord
Old Timer
Joined
Aug 16, 2005
Messages
635
the babies are not hybrids! Missed a few spines when I ID'd the male, went back last night with a 40x lens and found out he and my female were in fact maesi.
I would not count the spines, or its ratio...this is nearly senseless in that close related species. In fact nearly all phrynids have the same spine-formula and ratios...even if they are different. This old-fashioned tools do not work nowadays!
 

ThemantismanofPA

Arachnoknight
Joined
Oct 25, 2017
Messages
213
I would not count the spines, or its ratio...this is nearly senseless in that close related species. In fact nearly all phrynids have the same spine-formula and ratios...even if they are different. This old-fashioned tools do not work nowadays!
Arghhhh! Thanks for letting me know, is there any better way for me to check?
 
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