A new species of Athelia, A. termitophila, from Japan is described and illustrated on the basis of morphological and phylogenetic analyses. Basidiomes of this species are characterized by having hyphae sometimes with clamp connections at the septa, basidia without clamp connections at the basal septa, and ellipsoid to ovoid basidiospores measuring 4.5–6 × 3–4.5 μm. In culture, mycelia produce pale brown, orange-brown to brown, globose sclerotia measuring 0.24–0.41 mm diam. The sclerotia are distinctly different in shape and size from those of other Athelia species, and are occasionally found inside the woody substrate beneath basidiomes. They are identical in shape and size to those of Fibularhizoctonia sp., also known as termite balls. Phylogenetic analysis using internal transcribed spacer (ITS) sequence data revealed that A. termitophila is the teleomorph of Fibularhizoctonia sp.

一新种罗耳阿太，A. termitophila，从日本的描述和形态学和系统发育分析的基础上示出。该物种的basidiomes的特征是有时在菌丝上有菌丝，在隔片上有钳夹连接，在基底隔片上的basiadia没有钳夹连接，椭圆形到卵形的basidiospores大小为4.5–6×3–4.5μm。在培养过程中，菌丝体产生直径为0.24–0.41 mm的淡棕色，橙棕色至棕色的球形菌核。菌核在形状和大小上与其他无神菌物种明显不同，并且偶然发现在basidiomes下的木质基底内。它们的形状和大小与腓肠肌相同sp。，也称为白蚁球。使用内部转录间隔区（ITS）序列数据的系统发育分析表明，白蚁曲霉是Fibularhizoctonia sp。