Ophiocordyceps is a heterogeneous, species-rich genus in the order Hypocreales (Sordariomycetes, Ascomycota) that includes invertebrate-pathogenic taxa. In this study, seven new species in Ophiocordyceps producing superficial perithecia infecting various insect hosts (Lepidoptera, Hemiptera) are described from Thailand – Ophiocordyceps brunneinigra, O. brunneiperitheciata, O. geometridicola, O. multiperitheciata, O. pauciovoperitheciata, O. pseudoacicularis and O. spataforae. Phylogenetic analyses based on multigene loci comprising the large subunit of the ribosomal DNA (LSU), partial sequences of elongation factor 1-alpha (TEF) and the largest and second largest subunit of the RNA polymerase (RPB1, PRB2) strongly support these new species of Ophiocordyceps in the Ophiocordycipitaceae. They differ from species previously described species Ophiocordyceps acicularis, O. atewensis, O. cochlidiicola, and O. crinalis, in the shape and sizes of distinguishing characters such as perithecia, ascospores and conidia. We also report a new record of O. macroacicularis in Thailand.

蛇蝎是一种杂种的，物种丰富的属，属下Hy目（Sordariomycetes，Ascomycota），其中包括无脊椎动物致病的类群。在这项研究中，在七个新物种Ophiocordyceps -生产浅表感染子囊各种昆虫宿主（鳞翅目，半翅目）从泰国描述Ophiocordyceps brunneinigra，O. brunneiperitheciata，O. geometridicola，O. multiperitheciata，O. pauciovoperitheciata，O. pseudoacicularis和Ø spa。基于多基因位点的系统发育分析，包括核糖体DNA（LSU）的大亚基，延伸因子1-alpha（TEF）的部分序列以及RNA聚合酶的最大和第二大亚基（RPB1，PRB2），为这些新物种提供了有力支持在蛇眼藻中的蛇卵菌的种类。它们与先前描述的物种Ophiocordyceps acicularis，O。atewensis，O。cochlidiicola和C. crinalis的区别在于它们的特征和形状（例如皮膜，子囊孢子和分生孢子）。我们还报告了泰国O. macroacicularis的新记录。