On the Cover: Herpomyces chaetophilus Thaxt. on the mouthpart of a Periplaneta americana (L.) cockroach from Cambridge, Massachusetts. Herpomyces chaetophilus is a biotrophic microfungus in Herpomycetales, one of three orders in the poorly studied class Laboulbeniomycetes. It has a disjunct distribution, with very few records that are scattered across the globe, indicating a large Wallacean shortfall. Photo credit: André De Kesel (Meise Botanic Garden, Belgium).

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封面：Herpomyces chaetophilus Thaxt。来自马萨诸塞州剑桥市的美洲大蠊 (L.) 蟑螂的口器上。 Herpomyces chaetophilus 是 Herpomycetales 中的一种生物营养型微真菌，是研究很少的 Laboulbeniomycetes 纲中的三个目之一。它的分布是不连续的，很少有记录分散在全球各地，这表明华莱士的缺口很大。照片来源：André De Kesel（比利时梅斯植物园）。