Pseudothielavia terricola is widely distributed, especially in the tropical region of the world – with documented appearances in Africa, Southern Europe, and Asia.

[8] The fungus is mesophilic, grows abundantly in a pH level between 3.9–6, and is able to utilize multiple carbohydrates to support its growth.

[7] In 2019, a study was published by Xincun Wang and his team at the Westerdijk Fungal Biodiversity Institute, which phylogenetically reassessed all members of the genus Thielavia through genetic sequencing.

[10] The genus Coniothyrium and Thielavia may have been assigned to Pseudothielavia terricola due to similar defining characteristics that highly resembles the fungus.

Coniothyrium in the broad sense is defined to be unicellular with a smooth thin cell wall, pale-brown conidium, and a pycnidial structure with spherical cavity.

[6] As for nutrition, the species is capable of breaking down various types of carbohydrates – such as chitin, cellulose, and poly-/tri-/di-/monosaccharides, alcohol, nitrate, ammonium, and nitrogen-containing compounds to support its growth.

[6][7][11] The ascomata of the fungi is encased with a brown, semi-transparent, pseudoparenchymatous, double membraned textura epidermoidea – thin and tightly packed peridium.

[6][7] Inside the ascomata, the shape of the spore bearing asci of the fungi can range from pyriform to ovate to clavate to ellipsoidal.

They are insoluble in water but soluble in multiple organic solvents including methanol, ethanol, acetone, chloroform, and pyridine.

[6][7] The distribution of the species is noted to concentrate along tropical regions, with documented appearances in multiple parts of Africa (such as Sudan, Sierra Leone, and Nigeria), Kuwait, Pakistan, India, Nepal, New Guinea, Japan and others.

[6] Distribution in regions distant from the tropics are also present, countries such as the Netherlands, Britain, and the United States also have been reported to show the presence of this species.