S. Mahunka szerk.: Folia Entomologica Hungarica 50. (Budapest, 1989)

Body tricoloured with brownish yellow, blackish brown and straw yellow pattern. Head brownish yellow; frons medially, ocellar field, occiput and temple blackish brown (latter along hind margin of eye brownish yellow). Cheek and oral parts (palps, maxille) straw yellow, mandible yellow. Antenna darkening distally: scape, pedicel and first joint brownish yellow, flagellum faintly darkening brown. Mesosoma blackish brown; pronotum, prosternum, anterior margin of mesopleuron and metanotum brownish yellow. Tegula yellow. Legs yellow, coxae and first trochanters straw yellow. Metasoma yellow; anterior part of first tergite, entire second tergite and last three tergites dark brown. Basal third of ovipositor sheath yellow, otherwise dark brown. Wings subhyaline, pterostigma brown, veins opaque brown to yellowish. The single female paratype deviates from the holotype in the following features: Head in dorsal view 1. 77 times as broad as long. Ocelli forming rather an isosceles triangle, distance between fore and a hind ocelli slightly greater than that between hind two ocelli; OOL more than twice as long as POL. Pterostigma wide, 1.9 times as long as wide, metacarp distinctly shorter than pterostigma; 1-SR-M one-quarter longer than 1-M (Fig. 4). Sclerotized part of first tergite anteriorly somewhat less linearform and posteriorly broadening gradually, sclerotized part of second tergite somewhat wider 'Fig. 7). - Dark colour of body more extended. Antenna blackish brown. Pronotum and prosternum with rusty suffusion, otherwise mesosoma blackish brown. Metasoma dark brown, only sternites 1-2 yellow. Pterostigma basally and apically whitish, otherwise brown (fading?). O and host unknown. Type material: Holotype <j» + 1 <j) paratype: U.S.A., Maine, Franklin Co., Strong, 9 August 1976, leg. Heinrich. Holotype and 1 paratype are deposited in the Hungarian Natural History Museum, Budapest; Hym. Typ. No. 7151 (holotype) and 7152 (paratype). The new species is dedicated to its collector, the late Dr. Gerd Heinrich, the wellknown specialist of Ichenumonidae

. With the help of Muesebeck's key (1922) the new species, Mirax heinrichi sp. n., runs to M. texana Muesebeck, 1922 (U.S.A.), their common features are as follows: (1) vertex without a polished groove between median ocellus and occiput, (2) first flagellar joint somewhat though distinctly longer than second joint, (3) propodeum sculptured entirely. The two species are distinguished with the following key: 1 (2* Temple in dorsal view only about one-third shorter than eye, gradually rounded; OOL twice as long as POL (Fig. 1). Propodeum rugose with a few and rather transverse rugae (Fig. 5). 1-SR-M slightly to one-quarter longer than 1-M and m-cu nearly half as long as 1-M (i.e. first discal cell not quadratic), cu-a issuing from proximal third of CU 1 (i. e. 2-CU 1 twice as long as 1-CU 1) (Figs 3-4). Hind femur somewhat less thick, 3.4-3.5 times as long as broad. Head brownish yellow; ocellar field, occiput and temple blackish brown. (j>: 2.2 mm. - U.S.A.: Maine M. heinrichi sp. n. 2 (1* Temple in dorsal view half as long as eye, constricted; OOL about one-third longer than POL (Fig. 8). Propodeum with rather transverse carinae and a few transverse rugae, interspaces shiny (Fig. 9). 1-SR-M slightly longer than 1-M and m-cu only one-sixth shorter than 1-M (i.e. first discal cell nearly quadratic, cu-a issuing from middle of CU 1 (i.e. 1- and 2-CU1 equal in length) (Fig. 10). Hind femur somewhat thicker, thrice as long as broad. Head straw yellow. 6: 1.5 mm. - U.S.A. : Florida, Michigan, Texas M. texana Muesebeck, 1922 Since the comprehensive work of the Mirax species of the Nearctic Region by C.F.W. Muesebeck (1922) only one species have been described from North America under the name Mirax coptodiscae Walley, 1941. The two species may be separated by the following key: 1 (2) In dorsal view temple receded i and half as long as eye (cf. Fig. 8). Ocelli very small, distance between two ocelli twice as long as diameter of an ocellus. Sclerotized plate of first tergite narrow at base, broadening in distal half (Fig. 11). Propodeum smooth and shiny, along rather weak medio-longitudinal carina rugulose to uneven. Head and mesosoma black, ojô*': 1.5-1.6 mm.- Canada (British Columbia), U.S.A.(Washington, California* ... M. coptodiscae Walley, 1941