Tymmophorus erythrozonus ( Förster 1850, Tryphon

Klopfstein, Seraina, 2014, Revision of the Western Palaearctic Diplazontinae (Hymenoptera, Ichneumonidae), Zootaxa 3801 (1), pp. 1-143 : 104-105

Tymmophorus erythrozonus ( Förster 1850, Tryphon )

Bassus rufiventris Gravenhorst 1829 (homonym)

Bassus holmgreni Bridgman 1882

Zootrephes antennatus Davis 1895

Tymmophorus lacustris Schmiedeknecht 1913

Diagnosis. Fore wing length 3.5–4.3 mm. Antenna of both sexes with 18–19 flagellomeres. Mesoscutum and mesopleuron entirely smooth and shining, mostly unsculptured, sometimes with some weak punctures along anterior margin. Propodeum with a full set of strong carinae enclosing basal, lateral and petiolar areas, the areas with rugose sculpture. Tergite 2 1.3–1.6 times as long as wide. Metasoma in females laterally compressed posterior to fourth segment, widest part of metasoma is thus at base or middle of third segment.

Colouration of females. Antenna brown, usually paler below but very rarely bright orange. Head and mesosoma black, face with yellow along inner orbits, yellow or brown on clypeus and mouthparts, yellow on hind corner of pronotum, tegula, and sometimes upper mesepimeron; without yellow shoulder marks, scutellum black. Legs orange, coxae basally black with a yellow apex, fore coxa sometimes entirely yellow, trochanters yellow; femora orange, often dark basally; hind tibia and tarsus orange. Metasoma with orange markings on tergites 2 to 3 or 4, usually with tergite 2 black basally and tergite 4 partly dark.

Colouration of males. As in females but with yellow ventrally on antenna, face entirely yellow or with black marks arising below antennal sockets, yellow marks often on lower propleuron and sometimes anteriorly on mesosternum. Fore and mid coxae all and hind coxa mainly yellow. Metasoma as in females but with orange colouration on metasoma often extending further back.

Material examined. New for North Korea: Mt. Pektusan, Explosion-Lake, 2000–2500m, leg. Dely&Draskovits, 18.VII.1977. 1♀, at TMA.

Finland (7), Germany (2), Netherlands (4), North Korea (1), Sweden (12), Switzerland (3).

Distribution. Palaearctic.

Figures. Metasoma ♀ ( Fig. 26 A), habitus ( Fig. 35 D), male terminal sclerites ( Fig. 38 E).

Notes. Tymmophorus suspiciosus Brischke has been removed from synonymy with T. erythrozonus here, but it remains unclear to which of the two taxa the other junior synonyms belong. Until the types can be studied, we thus do not change their status.

Figures

FIGURE 26. Metasomas of Tymmophorus species viewed from above. A. Tymmophorus erythrozonus. B. Tymmophorus suspiciosus. Scale bars represent 500 µm.

FIGURE 35. Habitus of Diplazontinae species. A. Syrphophilus asperatus. B. Syrphophilus bizonarius. C. Syrphophilus scabriculus. D. Tymmophorus erythrozonus. E. Tymmophorus obscuripes. F. Tymmophorus suspiciosus.

FIGURE 38. Ninth sternite and ninth and tenth tergites of male Diplazontinae species. A. Sussaba erigator. B. Sussaba pulchella. C. Sussaba roberti. D. Syrphophilus asperatus. E. Tymmophorus erythrozonus. F. Tymmophorus obscuripes. G. Woldstedtius bauri. H. Woldstedtius citropectoralis. I. Woldstedtius holarcticus. J. Xestopelta gracillima.