Homotropus sundevalli

Klopfstein, Seraina, 2014, Revision of the Western Palaearctic Diplazontinae (Hymenoptera, Ichneumonidae), Zootaxa 3801 (1), pp. 1-143: 74

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Homotropus sundevalli


Homotropus sundevalli   ( Holmgren 1858, Bassus   ) (comb. nov.)

Bassus scabrosus Desvignes 1862  

Diagnosis. Fore wing length 5.7–8.2 mm. Antenna of both sexes with 22 to 24 flagellomeres; in females, apical flagellomeres with multiporous plate sensilla also present ventrally; in males with narrow, long tyloids on flagellomeres 7 to 15 / 16. Face strongly coriaceous and distinctly punctate, especially centrally. Clypeus strongly excised, with lobes somewhat angulate at outer corners. Mesopleuron smooth and shining, very strongly and densely punctate over entire surface. Mesoscutum smooth and shining, strongly and densely punctate. Hind coxa with hind surface smooth and shining, distinctly punctate. Fore wing areolet closed, vein 3 rs-m usually pigmented. Propodeum with carination complete and strong although some of the carinae almost disappearing against the strongly rugose background, especially on petiolar area; rugose and very strongly punctate. Female metasoma dorsoventrally depressed. First tergite with very strong median dorsal carinae which clearly surpass middle of tergite, without longitudinal wrinkles, 1.1–1.4 times as long as wide; second tergite basally with some strong longitudinal wrinkles, 0.65–0.9 times as long as wide, second tergite 0.75–0.9 times length of first tergite; spiracle of third tergite on dorsal part, above lateral fold.

Colouration of females. Antenna bright orange, darker towards apex. Head and mesosoma black, with yellow on central face patch separated from yellow on clypeus, yellow on mouthparts, hind corner of pronotum, tegula, large shoulder mark, upper mesepimeron, small to large spot apically on scutellum or entire scutellum. Legs orange, all coxae black, fore coxa with yellow apex, femora orange, hind tibia yellow or orange with apex dark, hind tarsus dark. Metasoma black.

Colouration of males. As in females but additionally with yellow over entire face, antenna ventrally, most of propleuron, mesosternum and often a spot or stripe on lower mesopleuron, fore and mid coxae.

Material examined. Lectotype of Bassus sundevalli Holmgren   : Sweden, Småland, leg. Boheman. 1 ♀, at NRM.

New for Austria: Tirol, Trins, 1200m, leg. T.Osten, 3.– 12.IX. 1991. 1♀, at ZSM; Stallburgalm b. Wayer b. St., leg. Martin Schwarz, 4.VIII. 1986. 1♀, at ZSM. New for Switzerland: Valais, Vissoye, leg. T.Steck, 14.VII. 1908. 1♀, at NMBE; VS, Sierre, leg. Paul, 4.X. 1887. 1♀, at NMBE.

Additional material. Germany: Salzburg, Bad Hofgastein, 900m, leg. Martin Schwarz, S.Schiffkorn, 4.IX. 1986. 1♀, at ZSM; Goslar a.H., Grauhöfer Holz, leg. E.Bauer, 1.IX. 1929. 1♀, at ZSM; Goslar a.H., Haldenstieg, leg. E.Bauer, 18.VIII. 1945. 1♂, at ZSM. Sweden: Småland, leg. Boheman. 1 ♂, 1 ♀, Uppland, 3 ♀, at NRM.

Distribution. Palaearctic.

Figures. First tergite ♀ ( Fig. 14 View FIGURE 14. A H), habitus ( Fig. 32 View FIGURE 32 C).


Swedish Museum of Natural History - Zoological Collections


Bavarian State Collection of Zoology


Naturhistorisches Museum der Burgergemeinde Bern














Homotropus sundevalli

Klopfstein, Seraina 2014

Bassus scabrosus

Desvignes 1862