Scolopendra altrenans species Puerto Rico

CHLee

Arachnoknight
Joined
Jul 8, 2011
Messages
237
I remember it being more of an inference and what I read was probably from the 80s or 90s. It said something like, "....there is a large subspinipes from Dominican...." So I assumed the document was referring to the Hispaniola centipede. This would have been when there was probably no or little hobby interest in the diddly. It was a very short mentioning of it, I remember it being in a pdf somewhere. I bet it was something mentioned way too soon, without taking a really good look at the pede. They may have noticed no ring furrow so, maybe they just made a guess there.
Oops I misread your original comment, I somehow thought you said they were sold as subspinipes or something lol
 

Scoly

Arachnobaron
Joined
Dec 4, 2013
Messages
422
I think this photo of a specimen from Aruba island might sway people's opinion in favour of Red Giants being alternans :D



(Photo taken from: https://mulpix.com/post/990016045720201303.html)

It seems that back circa 2009 people were of the opinion Red Giants were simply alternans, but that has sort of dropped out of common knowledge (or perhaps it's been challenged?)

There's a thread here discussing it: http://arachnoboards.com/threads/new-centipedes.142848/page-2 (sadly photos are no longer visible).

Talking of opinions and rumours here are some (conflicting) things I've heard:
- Alternans can grow to 12" on Puerto Rico.
- Someone who got bitten by a foot long pede in Puerto Rico and had to spend a week in hospital (but that could have be a subspinipes?)
- Alternans have really potent venom (According to Michael Dixon in his youtube videos, though he may have changed his mind)
- Alternans have really weak venom (David Gray, who has take many bites from this species)
- Hispaniola Red Giants have really weak venom (I think I read that from CH Lee/ micheldied, but on Facebook?)

I wonder if the presence of S. subspinipes on these islands may be the source of confusion on venom potency with some bite reports wrongly being attributed to alternans.
 

Galapoheros

ArachnoGod
Old Timer
Joined
Jul 4, 2005
Messages
8,991
My guess has always been Hispaniola is alternans, I wish somebody would clear it up. I remember there was somebody(scientist/student, can't remember) trying to clear it up a few years ago but I never heard any conclusion. The subspinipes miss-ID years ago was only trivia from me, there's no subspinipes that I know of in Puerto Rico.
 

Staehilomyces

Arachnoprince
Joined
Mar 2, 2016
Messages
1,432
There's a recent thread on here where someone found a subspinipes at PR, initially thinking it was an alternans.
 

LawnShrimp

Arachnoangel
Joined
Dec 9, 2016
Messages
908
Centipedes are bloody confusing. :dead:

Hispaniolan reds are definitely not subspinipes as they have far too many spines on their terminals. Most people including me think that they are a morph of alternans but as far as I know that hasn't been definitively proven.

Subspinipes in the Caribbean confuse me. They have very similar coloration and morphology to Hawaiian and other subspinipes from SE Asia. Two threads on AB prove that there are subspinipes in St. Lucia and Puerto Rico. Because both this species and alternans are found in PR, they may compete for resources. Also, does anyone know if subspinipes is native to the New World or introduced? It seems odd that a species with a primarily Old World distribution would be found in the Americas unless it is invasive or rafted a long way from home.
 

JAFUENTES

Arachnodragon
Joined
Nov 26, 2014
Messages
215
@LawnShrimp I'm liking the concept of a rafted species. The similarities of the Scolopendra Subspinipes from the Americans is to similar to those of the old world.
 
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