New species of Hygiella Mesnil (Diptera: Tachinidae), parasitoids of leaf insects (Phasmatodea: Phylliidae) Author Hiroshi Shima Author Takuji Tachi text Journal of Natural History 2016 50 25 1648 1668 journal article 10.1080/00222933.2016.1145751 b5863315-60f2-4c06-b726-d22d08d8bf2b 1464-5262 269900 Key to species of Hygiella 1 . Legs yellow ( Figure 2 A); anatergite bare; scutellum broadly reddish yellow in ground colour; two to three presutural and three postsutural dorsocentral setae ................ 2 – Legs black; anatergite with minute hairs; scutellum entirely black in ground colour; three presutural and three or four postsutural dorsocentral setae .............................. 3 2 . Two katepisternal setae; ocellar seta strong, nearly as long as reclinate orbital seta; occiput with rows of black hairs behind row of postocular setae; two postsutural intra-alar setae; two to three presutural dorsocentral setae .............. pygidialis Mesnil – Three katepisternal setae; ocellar seta very fine hair-like; occiput with whitish hairs on upper portion, black hairs confined at most on lower fifth; three postsutural intra-alar setae; three presutural dorsocentral setae .............................. luteipes sp. nov. 3 . Fore tibia with one posterior seta; abdominal syntergite 1 + 2 with a pair of distinct median marginal setae; second costal sector of wing bare ventrally; male with two proclinate orbital setae ( Figure 3 A, B)....................................................... proclinata sp. nov. – Fore tibia with two posterior setae; syntergite 1 + 2 without median marginal setae; second costal sector of wing haired ventrally; male without proclinate orbital setae ..... 4 4 . Four postsutural dorsocentral setae; vertex about one-fifth of head width in male ( Figure 1 B); wing only slightly tinged with pale yellowish brown throughout; lower calypter pale yellowish white .............................................................................. nigripes Mesnil – Three postsutural dorsocentral setae; vertex about one-seventh of head width in male ( Figure 1 A); wing with pale brownish tinge on anterior and basal portion; lower calypter pale brownish................................................................... angustifrons sp. nov.