Dolichochorus longiceps ( Strobl 1904 )

Broad, Gavin R. & Watanabe, Kyohei, 2019, Dolichochorus Strobl 1904: a valid genus of Mesochorinae (Hymenoptera: Ichneumonidae: Mesochorinae), Zootaxa 4555 (4), pp. 523-530 : 526

Dolichochorus longiceps ( Strobl 1904)

( Figures 1–6 )

Mesochorus (Dolichochorus) longiceps Strobl 1904

Astiphromma elongatum Nakanishi 1969 new synonym

Dolichochorus longiceps: Schwenke (1999)

Astiphromma (Dolichochorus) longiceps: Riedel (2015)

Material examined. 1 ♀, NHMUK 010880737, Sweden, Degaberga , Skåne, 8.vii.1938, J.F. & D.M.S. Perkins ; 1 ♀, Germany, NHMUK 010880738, Nationalpark Bayerischer Wald, Urwald Mittelsteighütte , Bayern, 6–23/vii/ 2001, M. Kuhlmann (both NHMUK) ; 1 ♀, England, Oxfordshire, Taynton Fen , SP 233148, 1 & 16.vi–17.vii.1989, K. Porter ( NMS) ; 1 ♀, Japan, Hokkaido, Horokanai Town, Hokkaido university, Uryu-kenkyurin , 44 ° 24’N / 142 ° 13’E, 300m, 17.vii.2012, M. Ito ( KPMNH); holotype ♀ of Astiphromma elongatum , ‘(Kamikawa) | Murasamonotaki | – Ginmesui | 7.viii.1967 | T. Saigusa’ ( MNHAH); paratype ♂ of A. elongatum , ‘(Abashiri) | Mt. Rausudake | Shari | 4.viii.1967 | T. Saigusa’ ( MNHAH) .

Diagnosis. Female. Creamy white patches on head below and between antennal sockets, clypeus, inner orbits on ventral third, malar space and gena ventrally, extent a little variable ( Fig. 6 ); antenna black. Most of mesosoma and metasoma black, pronotum white on dorsal and ventral posterior corners, metasoma becoming paler brown posteriorly, with creamy white to pale reddish markings on posterior edges of tergites, hypopygium cream-coloured / pale dull yellow. First tergite with weak granulosity anteriorly, striate posteriorly. Male similar but face entirely pale yellow ( Fig. 6 ), pronotum mostly pale yellow, black anteriorly, medially, mesopleuron ventrally / mesosternum pale reddish.

Figures

FIGURE 1. Dolichochorus longiceps (Strobl) (specimen NHMUK010880738) habitus.

FIGURE 2. Dolichochorus longiceps (specimen NHMUK010880738) head, frontal view (left) and side view (right).

FIGURE 3. Dolichochorus longiceps (specimen NHMUK010880738) fore wing.

FIGURE 4. Dolichochorus longiceps (specimen NHMUK010880738) hind wing, arrows pointing to position of nervellus (distal abscissa of CU).

FIGURE 5. Dolichochorus longiceps (specimen NHMUK010880738) first metasomal segment.

FIGURE 6. Dolichochorus longiceps faces, from left to right: ♀, Japan, Hokkaido, Horokanai t, Uryu-kenkyurin (KPMNH), D. elongatus (Nakanishi) holotype ♀ (MNHAH), paratype ♂ (MNHAH).