Batakomacrus flaviceps (Gravenhorst, 1829)

Broad, Gavin R., 2010, Status of Batakomacrus Kolarov (Hymenoptera: Ichneumonidae: Orthocentrinae), with new generic combinations and description of a new species, Zootaxa 2394, pp. 51-68 : 64

Batakomacrus flaviceps (Gravenhorst, 1829)

Orthocentrus flaviceps Gravenhorst, 1829

Orthocentrus (Stenomacrus) flaviceps: Thomson, 1897 Stenomacrus flaviceps: Aubert, 1981

Stenomacrus flaviceps: Yu & Horstmann, 1997

Comments. Similar to B. caudatus and B. noyesi , differing principally in the colour characters used in the key. A slightly stouter species, with the first flagellomere of the female shorter than that of the other species, as noted by Aubert (1981) (2.5–2.7 x as long as apically wide, n=3), but males with slenderer first flagellomere (3.0 x as long as wide, n=2). Fore wing areolet is smaller than in congeners and hind wing vein cu-a only slightly angulate at the point where the abscissa of Cu would be. Differs from B. caudatus in that the third to sixth tergites are not rectangularly emarginate posteriorly.

According to Aubert (1981), the type of Orthocentrus flaviceps is lost but the identifications of Perkins (in his curation of the BMNH collection) and Aubert (1981) agree and there seems to have been no doubt over the interpretation of this species. However, in the BMNH collection, males of Stenomacrus laricis have been misidentified as B. flaviceps , whilst Aubert (1981) also found the two species confused in Stockholm Museum. Whilst superficially similar (yellow face and inner orbits, areolet closed), S. laricis can be easily distinguished by its lack of the lower mandibular tooth (in antero-ventral view); the yellow temples up to about half the posterior height of the eye; a yellow lateral fleck on the 1st tergite; and the wide temples, about as wide as the eye width at half the height of the eye.

Material examined. 1 Ƥ, England, Upper Teesdale Langdon Beck, 1.vi.1939, J.E. & R.B. Benson, 1 Ƥ, England, Surrey, Richmond Park, 10.x.1982, J. Noyes, 2 Ƥ, no data except ‘ v.1910 ’, C. Morley coll., 1 3, ‘ 2.v.36 beaten pine tree on Breck – W. Stow’, C. Morley, 1 Ƥ, France, Dordogne, St Capraise-de-Lalinde, 18.iv.1955, D.M.S. Perkins, 1 3, Sweden, Ring sjö., 21.vi.1938, D.M.S. & J.F. Perkins, 1 3, Sweden, Löderup., 24.vii.1938 (all BMNH); 1 Ƥ Spain, El Ventorillo, Madrid, 1,480m, Trampa, Malaise 2–30.iv.1990, Nieves & Rey coll. ( ZSMC). Listed as occurring in the following countries in Yu et al. (2005): Austria, Belgium, Bulgaria, Finland, France, Germany, Netherlands, Poland, Sweden and UK.