Revision of Afrotropical Dyscritobaeus Perkins, 1910 (Hymenoptera: Scelionidae) Author Tortorici, Francesco Author Caleca, Virgilio Author Noort, Simon Van Author Masner, Lubomir text Zootaxa 2016 4178 1 1 59 journal article 10.11646/zootaxa.4178.1.1 2b965791-3303-41ac-bf83-be05c09c78ea 1175-5326 261632 D00D1335-72DF-4D8B-97E1-45642CF38AC8 Dyscritobaeus tanzaniensis Tortorici et Caleca sp. nov. ( Figs 30 , 40f , 106, 107, 108 ) urn:lsid:zoobank.org:act:15CB2DAA-B68A-4C5F-A9C5-652483D9B4E6 http://hol.osu.edu/index.html?id=410572 Diagnosis. The species is brachypterous; in the Afrotropical region this feature is shared only with D. kilimanjarensis and D. parvipennis . On T1 the pair of longitudinal submedial carinae are absent and T1 is homogenously coriaceous; only three brachypterous species, D. aspinosus , D. carens (female and male) and D. minoculo (only male) from Australia have the same character state. The absence of the metanotal spine and the lack of a protruding metascutellum is shared only with D. aspinosus , from which D. tanzaniensis Tortorici et Caleca sp. nov. can be easily distinguished by the smaller A2–A3 ratio and darker color of the body. Description. Male. Length of the body: 0.91 mm . FIGURES 106–108 . Dyscritobaeus tanzaniensis Tortorici et Caleca sp. nov. Ƌ, holotype [SAM-HYM-P018754]: 106 —head, frontal view; 107 —head, mesosoma and metasoma, lateral view; 108 —head, mesosoma and metasoma, dorsal view. Head . Color brown. Coriaceous; head covered by short hairs, mandibles yellow. Frontal depression shallow and lightly coriaceous; central keel present ( Fig. 106 ). Fan-like striation in malar area from oral foramen to eye margin, fan-like striation not visible in genal area. Malar sulcus length: 0.15 mm . Preoccipital lunula present and sculptured ( Fig. 106 ). Head measures width: height: length = 0.37: 0.36: 0.21 mm . Eye measures width: length = 0.12: 0.16 mm . OOL: LOL: POL = 0.1: 0.1: 0.11 mm . Mandibles bidentate without odontoid process. Antenna. Radicles and scape dark yellow; A 3 – A 12 brown ; A 1 length: 17 ; A 2 as long as A 3 ; A 11 : A 12 ratio= 1:2. Mesosoma . In dorsal view, mesoscutum brown; mesoscutellum brown with posterior margin yellow; propodeum brown to yellow in lateral margin( Fig. 108 ); mesosoma in lateral view light brown ( Fig. 107 ). In dorsal view mesoscutum and mesoscutellum imbricate ( Fig. 108 ); in lateral view speculum with furrow; femoral depression smooth with fan-like striation starting by post-ventral angle; posterior mesepimeral area not well delimitate anteriorly; dorsal and ventral metapleural area with crenulate depression with rugae ( Fig. 107 ); metapleural carina with one posterior pointed projection. Metascutellum not protruding, not visible in dorsal view, metanotal spine absent ( Fig. 108 ). Mesonotum length 0.24 mm , width 0.41 mm ; mesoscutellum length 0.14 mm , width 0.32 mm . Wings. Fore wing hyaline, brachypterous, do not reach T1; sm: 0.17 mm ; wing width 0.06 mm , length 0.19 mm . as in Fig. 40f . Legs light brown. Metasoma . Metasoma brown; laterotergites yellow; Coriaceous. On T1 pair of longitudinal submedial carinae absent ( Figs 107, 108 ). Female: unknown Comment and variability. The description of this species is based on only a single specimen, which, however, possesses uniquely diagnostic character states: brachypterous with the rare character state where the metascutellum is not visible in dorsal view. Distribution. ( Fig. 109 ) FIGURE 109 . Distribution of Dyscritobaeus tanzaniensis Tortorici et Caleca sp. nov. Etymology. The species is named after the country where the specimen was collected, Tanzania . Material examined. Holotype . Ƌ: AFRICA: Tanzania : West Usambara Forests - Site 4, Forest - montane - disturbed, 420m , 1996/05/13 , Robertson, Winkler Bag, (SAMC), [SAM-HYM-P018754] (wings on slide, in Fig. 40f ).