Honorary Research Associate, Agriculture and Agri-Food Canada, Canadian National Collection of Insects, Arachnids and Nematodes, K. W. Neatby Bldg., 960 Carling Avenue, Ottawa, Ontario, Canada, K1A 0C6..
Zootaxa. 2021 Jan 5;4901(1):zootaxa.4901.1.1. doi: 10.11646/zootaxa.4901.1.1.
The Old World genus Mesocomys Cameron (1905) (Hymenoptera: Eupelmidae: Eupelminae) is revised. Eleven species, including two newly described species, are recognized and keyed in two previously established species groups, the albitarsis and the pulchriceps species groups sensu Gibson (1995), but with additional features provided to distinguish members of the two groups. Five species are recognized in the pulchriceps group-Mesocomys anelliformis n. sp., M. longiscapus n. sp., M. orientalis Ferrière, 1935, M. pauliani Ferrière, 1951, and M. pulchriceps Cameron, 1905. Seven species are assigned to the albitarsis group, but one, M. aegeriae Sheng, 1996 is treated as a nomen dubium; the six recognized and keyed species in the albitarsis group are M. albitarsis (Ashmead, 1904), M. breviscapis Yao, Yang Zhao, 2009, M. menzeli (Ferrière, 1930b), M. obscurus (Ferrière, 1930b) revised stat., M. superansi Yao, Yang Zhao, 2009, and M. trabalae Yao, Yang Zhao, 2009. Within the albitarsis group, the species are further discussed relative to two newly established species subgroups, the albitarsis subgroup for M. albitarsis, M. menzeli and M. obscurus, and the aegeriae subgroup for M. aegeriae, M. breviscapis, M. superansi and M. trabalae. Females of the albitarsis subgroup possess a finely sculptured mesoscutal medial lobe in combination with partly infuscate fore wings and/or at least partly pale flagellum, whereas females of the aegeriae subgroup possess a much more coarsely sculptured mesoscutal medial lobe and hyaline fore wings in combination with a dark flagellum. Members of the albitarsis species group are restricted to the Oriental and eastern Palaearctic regions except for a single female of the aegeriae subgroup seen from Algeria that is provisionally identified as M. breviscapis; members of the pulchriceps group are restricted to the Afrotropical region except for M. orientalis from the Oriental region. Newly placed in synonymy are M. aegeriae Sheng, 1998 under M. aegeriae Sheng, 1996 n. syn., M. sinensis Yao, Yang Zhao, 2009 under M. breviscapis Yao, Yang Zhao, 2009 n. syn., M. atulyus Narendran, 1995 under M. orientalis Ferrière, 1935 n. syn., M. vuilleti (Crawford, 1912) under M. pulchriceps Cameron, 1905 n. syn., and Semianastatus orientalis Kalina, 1984 and Mesocomys kalinai Özdikmen, 2011 under M. albitarsis (Ashmead, 1904) n. syns. Lectotypes are newly designated for M. menzeli, M. obscurus, M. orientalis, M. pauliani, M. pulchriceps and M. vuilleti. Morphological features characteristic of the genus and of the highly dimorphic sexes are described and illustrated, and the species are keyed, described, and illustrated through macrophotography. Phylogenetics are discussed for the genus, the two species groups, and species within the pulchriceps group. Distribution and host records are also summarized for each species.
旧大陆属 Mesocomys Cameron（1905）（膜翅目：Eupelmidae：Eupelminae）进行修订。包括两种新描述的物种在内，共识别出 11 个物种，并在两个先前建立的物种组中进行了关键区分，即 albitarssis 和 pulchriceps 物种组，这是 Gibson（1995）的分类，但提供了更多的特征来区分这两个组的成员。在 pulchriceps 物种组中，有 5 种物种被识别出来，包括 Mesocomys anelliformis n. sp.、M. longiscapus n. sp.、M. orientalis Ferrière, 1935、M. pauliani Ferrière, 1951 和 M. pulchriceps Cameron, 1905。7 种物种被分配到 albitarssis 物种组中，但其中一种 M. aegeriae Sheng, 1996 被视为可疑名称；在 albitarssis 物种组中，有 6 种被识别并进行了关键区分，包括 M. albitarsis（Ashmead, 1904）、M. breviscapis Yao, Yang Zhao, 2009、M. menzeli（Ferrière, 1930b）、M. obscurus（Ferrière, 1930b）修订状态、M. superansi Yao, Yang Zhao, 2009 和 M. trabalae Yao, Yang Zhao, 2009。在 albitarssis 物种组中，根据两个新建立的物种亚组，即 albitarssis 亚组（M. albitarsis、M. menzeli 和 M. obscurus）和 aegeriae 亚组（M. aegeriae、M. breviscapis、M. superansi 和 M. trabalae），对物种进行了进一步讨论。albitarssis 亚组的雌性具有精细雕刻的中胸盾片内侧叶，结合部分模糊的前翅和/或至少部分淡色的触角，而 aegeriae 亚组的雌性具有更粗糙雕刻的中胸盾片内侧叶和透明的前翅以及深色的触角。albitarssis 物种组的成员仅限于东洋和东古北地区，除了来自阿尔及利亚的一个雌性 aegeriae 亚组被暂时鉴定为 M. breviscapis 外；pulchriceps 物种组的成员仅限于非洲热带地区，除了来自东洋地区的 M. orientalis 外。M. aegeriae Sheng, 1998 被归入 M. aegeriae Sheng, 1996 n. syn.，M. sinensis Yao, Yang Zhao, 2009 归入 M. breviscapis Yao, Yang Zhao, 2009 n. syn.，M. atulyus Narendran, 1995 归入 M. orientalis Ferrière, 1935 n. syn.，M. vuilleti（Crawford, 1912）归入 M. pulchriceps Cameron, 1905 n. syn.，以及 Semianastatus orientalis Kalina, 1984 和 Mesocomys kalinai Özdikmen, 2011 归入 M. albitarsis（Ashmead, 1904）n. syns.。为 M. menzeli、M. obscurus、M. orientalis、M. pauliani、M. pulchriceps 和 M. vuilleti 新指定了模式标本。描述和插图了属和高度二态性性别特有的形态特征，并进行了关键区分、描述和通过微距摄影进行了插图。讨论了属、两个物种组和 pulchriceps 组内的物种的系统发育。还总结了每个物种的分布和宿主记录。
