Abnormalities in theraphosids

What a beautiful world we live in. Whether or not it can be considered perfect, I leave the answer to the philosopher amongst us. The formula, however, is quite solid. Perfection is being looked after as we’re breathing. Fauna & flora constantly develops to gain power over survival and ecosystems as a whole never cease to find answers to destructive powers. The effectiveness of this world is admirable, but as such are its abnormalities. Some survived, some didn’t. Some reproduced, some didn’t. Some remain unseen, but all are wonderful. Take a look at the following incredibly beautiful abnormalities in theraphosids.

Click on the pictures for bigger scale.

Grammostola sp. (a gynandromorph combines both male and female characteristics (video information), © Sarah Rollin Naughton).

Grammostola sp.

Lampropelma violaceopes (a gynandromorph combines both male and female characteristics (video information), © Gerhard Jungwirth).

Lampropelma violaceopes

Omothymus schioedtei with a remarkable abdominal pattern and 4 pairs of spinnerets. Sad but true, the spider didn’t make it through the molt (© Pav from Passion 4 tarantulas).

Omothymus schioedtei

Omothymus schioedtei Omothymus schioedtei Omothymus schioedtei

Omothymus schioedtei with a double abdominal line (© Pav from Passion 4 tarantulas).

Omothymus schioedtei

Pamphobeteus sp. Mascara (a gynandromorph combines both male and female characteristics (video information), © Peter Dela Cruz).

Pamphobeteus sp. Mascara

Pamphobeteus sp. Mascara

Poecilotheria metallica with a very special abdominal pattern (© Solt Lilla És Gábor).

Poecilotheria metallica

Poecilotheria metallica

Poecilotheria ornata (a gynandromorph combines both male and female characteristics (video information), © Phalagorn Arachnoboards (original post))

Poecilotheria subfusca with a double abdominal line (© Tomáš Frýbort).

Poecilotheria subfusca

Poecilotheria subfusca Poecilotheria subfusca Poecilotheria subfusca

Poecilotheria sp. (a gynandromorph combines both male and female characteristics (video information), © Tarantula Canada).

The video shows a hybrid between Poecilotheria subfusca and Poecilotheria sp. lowland).

Psalmopoeus irminia with an incredible abdominal pattern (© Kamil Mroczek from Monstrum).

Psalmopoeus irminia

Psalmopoeus irminia

Interesting links

• Please take a look at Patrick Meyer’s website (poeci1.de) for more abnormalities in Poecilotheria spp.

• More gynandromorph animals, including a Poecilotheria sp

• More about theraphosid spiders with 2 opisthosomas (see anatomy). Definitely worth reading! The picture (© tarantulas.su) shows a hybrid between Brachypelma albopilosum and Brachypelma vagans, abbreviated as Brachypelma albogans.  

 Brachypelma albogans


With special thanks to all contributors. 

Text: Dennis Van Vlierberghe (facebookgroup and –page).