Mischoserphus arcuator (Stelfox, 1950)

Material examined: 1 ♀; Iran, Mazandaran province, Noor, Chamestan, Tangehvaz (36°18′51.42″N, 52°07′48.00″E, 1353 m a.s.l.), 28-VI-2011, 1 ♀; leg. A. Nadimi .

Diagnosis: Female (Figure 4a): Length of body 3.0 mm; penultimate antennal segment about 2.0 times as long as wide; cheek without a groove from eye to mandible; mesopleural suture with a few small foveae on its upper half, smooth part of metapleuron about 0.7 times as long as metapleuron (Figure 4b); length of dorsal smooth areas on propodeum about 1.0 times as long as wide (Figure 4c); forewing venation as in Figure 4d; ovipositor sheath about 1.1 times as long as hind tibia, hairless, weakly curved and gradually tapered to apex (Figure 4e).

Distribution: Canada, Georgia, Ireland, Japan, Russia, Sweden, USA (Townes and Townes, 1981; Kolyada, 1998; Johnson, 2013), and Iran (new record).

Biology: Unknown.