First record of the genus Eucremastus Szépligeti, 1905 (Hymenoptera: Ichneumonidae: Cremastinae) from the Arabian Peninsula, with the description of three new species Author Gadallah, Neveen S. Author Soliman, Ahmed M. Author Al Dhafer, Hathal M. text Zootaxa 2017 4216 4 339 354 journal article 37337 10.5281/zenodo.242266 ccf4cce9-cb0f-47d3-bf4d-ceba3b13e609 1175-5326 242266 62CA529F-BCDE-45D5-916A-CE30A7C72755 Eucremastus rufoantennalis sp. nov. Gadallah & Soliman ( Figs 8 A–E, 9A–D, 10A–C) Material examined . Holotype ♀ : Saudi Arabia , Al-Quwayiyah , Rawdhat Al-Harmalyiah [ 24°17'50"N , 45°08'49"E ] ( 786m ), light trap , 17.iv.2015 (leg. Al Dhafer et al. ) [ EFC ] . Paratype 1♀ : Saudi Arabia , Al-Zulfi , Rawdhat Al-Sabalh [ 26°23'17"N , 44°58'38"E ] 670m , light trap , 25.x.2015 (leg. Al Dhafer et al. ) [ KSMA ] . Description. FEMALE ( holotype ). Body length 9.0 mm, fore wing length 5.0 mm, ovipositor length 4.0 mm. Head. Antenna with 29 flagellomeres, F1 about 4.6 × as long as wide ( Fig. 8 D). Gena short, constricted behind eyes ( Fig. 8 D). Occipital carina very thin, greatly interrupted medially. Occiput with dense, irregularly distributed punctures. Head densely shallowly punctate, punctures separated by distances more than a puncture diameter, larger and denser on face ( Fig. 8 B); clypeus with fewer large punctures. Ocelli rather small; MOD 1.3 × OOD; IOD 2.0 × OOD ( Fig. 8 B, D). Inner eye margins nearly parallel-sided ( Fig. 8 B). Clypeus slightly convex in profile, with fine suberect hairs, ventral margin slightly rounded ( Fig. 8 B). Malar space about 0.3 × basal width of mandible. Mandible with inner tooth slightly longer than outer one ( Fig. 8 C). Mesosoma. Densely punctate, fewer and widely spaced in middle of mesoscutum and base of scutellum ( Fig. 8 E). Notauli distinct, not reaching anterior margin of mesoscutum ( Fig. 8 E), axilla densely punctate. Mesopleuron striato-punctate ( Fig. 9 A). Propodeum distinctly transversely wrinkled, especially medially ( Fig. 8 E). Legs slender, middle tibiae, each with one spur. Claws small and thin, each with three inner teeth. Wings. Fore wing densely covered with minute setae apically, less dense on disco-submarginal and 2nd discal as well as marginal cells (hardly seen) ( Fig. 9 B). Vein Rs slightly concave to nearly straight ventrally; pterostigma narrowly triangular, 3.8 × as long as broad; vein R1 shorter than pterostigma (0.7 ×) ( Fig. 9 B). Hind wing ( Fig. 9 C) with eight hamuli. Metasoma. T1 about 1.17 × T2 ( Fig. 10 A). Lateral sides of T1 almost touching each other ventrally, obscuring most of S1 (except anteriorly and posteriorly). Posterior margin of T1 and almost all T2 are finely longitudinally striated ( Fig. 10 A); T2 with two distinct lateral longitudinal grooves along its whole length ( Fig. 10 A, B). The following tergites punctate especially laterally. Ovipositor very slightly downwardly curved apically ( Fig. 10 C), with a subapical notch; ovipositor sheath very thin, densely clothed with fine erect sensory setae along its whole length, ending with a specule ( Fig. 10 C). FIGURE 8 (ĀE) E. rufoantennalis sp. nov. (paratype ♀): A. lateral habitus; B. frontal view of head; C. mandibles; D. dorsal view of head and basal segments of antennae; E. dorsal view of mesosoma. FIGURE 9 (ĀD) E. rufoantennalis sp. nov. (paratype ♀): A. lateral view of head and mesosoma; B. fore wing; C. hind wing; D. mid tibial spurs. Colour. Generally whitish with the following parts slightly yellowish ( Fig. 8 A): T1 subapically ( Fig. 10 A), anterior band on T4 and T5, almost all T5 ( Fig. 10 B). Anterior margin of T2 and T3 brownish, giving off a shiny hue along the middle area of T2 ( Fig. 10 A). Antennal flagellum and mandibular teeth dark brown ( Fig. 8 C, D). Ovipositor dark reddish-brown, with yellowish tip, ovipositor sheath entirely black ( Fig. 10 C). Wing hyaline with dark brown wing veins (except 1A membranous), pterostigma pale brown ( Fig. 9 B). MALE. Unknown. Remarks . The holotype female is of type 0 of Mazón & Bordera (2015) , however the paratype female belongs to type 1 with both middle tibiae having two unequal spurs ( Fig. 9 D). Etymology . The species name is derived from the Latin (adj.) “ rufus ” related to the reddish-brown antenna.