S. Mahunka szerk.: Folia Entomologica Hungarica 63. (Budapest, 2002)

Pristiphora mongolonigrocauda sp. n. (Figs 2, 8) Body black, labrum, mandibles and palpi reddish brown. Antennae black. Legs light yellow, coxae, trochanters, hind femora, basal half of the middle and fore femora more or less black, apical rings of hind tibiae and that of the hind tarsal segments brown. Wings subinfumate, stigma and costa light brown. Cenchri black. Head minutely and densely punctured, shining. Head broadened behind the eyes without hind occipital carina. Frontal field not limited by carina only slightly raised above the level of the frontal area. Clypeus subtruncate. Mesoscutellum and mesoscutellar appendage nearly smooth and shining. Postscutellum smooth and shining with only few small but deep punctures. Mesopleuron smooth and shining. Head and thorax moderately densely covered with whitish pubescence about 2/3-3/4 times as long as the diameter of the front ocellus. First cubital vein missing. Claws with small and strong inner teeth. Abdominal tergites with fine and dense surface sculpture, moderately shining. Sides of the sawsheath - in dorsal view - subparalell, and apically deeply and triangularly excised (Fig. 2). The excision with internally curved hairs. Sawsheath with enlarged supporting base as it figured in Fig. 8 (Lygaeonematus Konow, 1890). OOL:POL:OCL = 8:9:5. Antennái segments = 6:6:25:25:26:22:22:21:22. Ratios of the hind tarsal segments = 26:15:11:5:12. Length of the 3rd antennái segment : longest axis of eye = 5:6. Length of hind tibial spur : length of hind basitarsus : maximal width of hind tibia = 13:26:10. Length of the ovipositor : length of hind femur = 61:65. Genal length : diameter of the front ocellus = 1:1. Length: 5.0-5.3 mm. Length of fore wing: 4.3^.9 mm. Holotype: female: Mongolia: "Central aimak, Bugi in az achuj im Geb. Bogdo ul, 36 km SW von Ulan Baator, 1650 m, Exp. Dr. Z. Kaszab, 1968, Nr. 939, 10.VI.1968". Paratype: female, labelled as the holotype. At the first sight, this species is related to the melanocarpa group. However, the enlarged supporting base of the sawsheath (Fig. 8) and long parallel side of the sawsheath (Fig. 2) suggest that this species belongs to the subgenus Lygaeonematus Konow, 1890 (Zhelochovtsev, 1980).