Ophion angularis Johansson & Cederberg, 2019

Johansson, Niklas & Cederberg, Björn, 2019, Review of the Swedish species of Ophion (Hymenoptera: Ichneumonidae: Ophioninae), with the description of 18 new species and an illustrated key to Swedish species, European Journal of Taxonomy 550, pp. 1-136 : 37-40

Ophion angularis Johansson & Cederberg sp. nov.

urn:lsid:zoobank.org:act:BB40BE24-344A-40B6-AF63-078ED2FFCDB3

Figs 9F , 22

Diagnosis

The combination of the shape of the pleurosternal angles, the buccate temples and the number of flagellomeres separates this species from all other known Swedish species of Ophion . Ophion angularis Johansson & Cederberg sp. nov. is most likely to be confused with Ophion crassicornis Brock, 1982 and Ophion borealis Johansson sp. nov., but has more prominent pleurosternal angles, usually more numerous flagellomeres, slightly less buccate temples, entirely uncarinated scutellum and more densely punctate face.

Etymology

The pleurosternal angles are very prominent in this species.

Material examined

27 ♀♀, 10 ♂♂ ( Sweden); 2 ♀♀ ( France); 7 ♂♂ ( Estonia).

Type material

Holotype

SWEDEN • ♀; Östergötland, Norrköping, Kimstad ; 58.551° N, 15.962° E; 1 May–1 Jul. 2012; M. Stahre leg.; Yellow pan trap in gravelpit close to pine and oak forest; STI-NJBC79 ; NHRS- HEVA000008581 .

Paratypes

SWEDEN • 1 ♀; Öland, Borgholm , 0.6 km SW Borgholm church; 56.876° N, 16.648° E; 22 May 1974; S. Johansson leg.; MV-light in garden surrounded by oak forest; MZLU Type no. 6366:1 • 1 ♀; Öland, Mörbylånga, Räpplinge ; 56.827° N, 16.660° E; 18 Jun. 1964; S. Johansson leg.; MV-light; MZLU Type no. 6366:2 • 1 ♀; Skåne, Ystad, Kåseberga ; 55.385° N, 14.066° E; 21 May–28 July 2016; N. Ryrholm and C. Källander leg.; MV-light trap in warm coastal sandslopes; NHRS-HEVA000008582 • 1 ♀; Skåne, Simrishamn, Örnahusen ; 55.450° N, 14.261° E; 4–26 Jun. 2006; N. Ryrholm and C. Källander leg.; MVlight trap in coastal meadow; NHRS-HEVA000008583 • 2 ♀♀; Blekinge, Karlskrona, Tullaretorpet ; 56.227° N, 15.647° E; 2–3 Jun. 2016; C. Philipsson leg.; MV-light in deciduous forest; 1 ♀ STI-NJBC78 ; NHRS-HEVA000008584, NHRS-HEVA000008585 • 1 ♀; Gotland, Roleks ; 57.536° N, 18.339° E; 2–18 Jun. 2004; SMTP leg.; Malaise trap in grazed calcareous pine forest (Trap id 28, coll ev. id. 497); NHRS-HEVA000008586 • 1 ♀; Gotland, Roleks ; 10 Apr.–6 Jun. 2005; SMTP leg.; Malaise trap in grazed calcareous pine forest (Trap id 28, coll ev. id. 1464); NHRS-HEVA000008587 • 1 ♂; Öland, Mörbylånga, Strandskogen ; 56.702° N, 16.494° E; 22 May 2016; B. Andersson leg.; MV-light trap in garden on sand close to deciduous forest; NHRS-HEVA000008588 • 1 ♀; Skåne, Ystad, Spraggehusen ; 55.442° N, 14.066° E; 27 May–28 Jul. 2016; N. Ryrholm and C. Källander leg.; MV-light trap in coastal sanddunes; NHRS-HEVA000008589 • 1 ♀; Gotland, Sundre, Hallbjäns ; 56.938° N, 18.146° E; 21 Jun.–22 Jul. 2006; N. Ryrholm and C. Källander leg.; MV-light trap in coastal rocky, calcareous heath; NHRS-HEVA000008590 • 1 ♀; Gotland, Hamra, Tuvlandet ; 56.966° N, 18.378° E; 24 Aug.–27 Aug. 2007; N. Ryrholm and C. Källander leg.; MV-light trap in abandoned farmland/gardens; NHRS- HEVA000008591 • 3 ♀♀; same locality as for preceding; 56.966° N, 18.308° E; 26Aug.–24 Sep. 2007; N. Ryrholm and C. Källander leg.; MV-light trap in abandoned farmland/gardens; NHRS-HEVA000008592 to NHRS-HEVA000008594 • 2 ♀♀; Småland, Ljungby, Agunnaryd , Nockarp ; 56.767° N, 14.167° E; 10 Jul. 1966; N. Burreau leg.; MZLU Type no. 6366:3, MZLU Type no. 6366:4 • 1 ♂; same data as for preceding; 19 Jun. 1966; N. Burreau leg.; MZLU Type no. 6366:5 • 4 ♂♂, 2 ♀♀; Skåne, Klippan, Bonnarpshed ; 56.087° N, 13.176° E; 8–13 Jun. 2007; N. Ryrholm and C. Källander leg.; MV-light trap in grazed heathland; NHRS-HEVA000008595 to NHRS-HEVA000008600 • 2 ♂♂; Skåne, Höganäs, Mölle ; 56.289° N, 12.498° E; 1 Jun. 1965; N. Burreau leg.; MZLU Type no. 6366:6, MZLU Type no. 6366:7 • 1 ♂; Halland, Halmstad, Steninge ; 56.758° N, 12.637° E; 29 Jun. 1941; B. Hanström leg.; MZLU Type no. 6366:8 • 1 ♀; Uppland, Väddö, Ytterskär ; 59.938° N, 18.920° E; 23 May–26 Jun. 2017; N. Ryrholm and C. Källander leg.; MV-light trap; STI-NJBC186 ; NHRS-HEVA000008601 • 1 ♀; Öland, Mörbylånga, Torslunda Ekologiska Station ; 56.619° N, 16.497° E; 5 Jun. 1977; B. Cederberg leg.; Sweepnet in dry grassland, NHRS-HEVA000008602 • 1 ♂; same data as for preceding; 12 Jun. 1977; B. Cederberg leg.; Sweepnet in dry grassland; NHRS-HEVA000008603 .

Description

Fore wing length 15–17 mm. Antenna in both sexes with 59–67 flagellomeres. First flagellomere 2.5–3.0 times as long as wide. Central flagellomeres stout, about 1.2–1.3 times as long as wide. Apical flagellomeres approximately 1.5 times as long as wide. Temple in female and male strongly buccate, in lateral view 0.7–0.8 times as long as compound eye. Head with distinct gap between lateral ocellus and inner margin of compound eye. Face below antennal sockets very densely punctate, interstices about 0.2 times diameter of punctures. Malar space about 0.2 times as long as mandibular base in female and male. Mandibular gape right-angled, with internal angles. Wing membrane clear. Ramellus reaching 0.2–0.3 times the width of the discosubmarginal cell. Radius sinuous. Mesopleuron shagreened with very dense punctures which often merge centrally. Epicnemial carina, in antero-ventral view, with pleurosternal angles nearly in level with sternal angles, pleurosternal angles acute ( Fig. 9F ). Epicnemial carina between tip of pleurosternal angle and sternal part strongly concave. Scutellum without distinct lateral carinae in basal half. Propodeum distinctly punctate and coriaceous in front of anterior transverse carina, between transverse carina more often quite shiny, weakly rugose. Anterior transverse carina sometimes absent or weak laterally and posterior transverse often interrupted centrally, in continental specimens the anterior carina sometimes more strongly raised. Longitudinal carinae delimiting area superomedia and petiolar carinae often strong. Area superomedia quite narrow, about two times as long as wide. Hind trochantellus shorter than wide in dorsal view. Legs normal with hind femur about 7.0 times as long as wide. Sclerotised section of first sternite ending level to spiracle (as in Fig. 5H ). Inner spur of hind tibia 0.4 times as long as hind metatarsus.

Colour

Body testaceous. Mandibular teeth black. Head with inner and outer eye margins widely yellow. Ovipositor sheath black or dark brown, contrasting in colour with posterior metasomal segments.

DNA barcode

The DNA barcode sequences of four Swedish specimens of Ophion angularis Johansson & Cederberg sp. nov. are available at the BOLD systems database (www.boldsystems.org, BIN. BOLD:ADG2027. Specimen codes: STI-NJBC: 78–79, 186, 267).

Ecology

The species seems to occur in open or semi-open habitats and is active during late June–August. Other than that, nothing is known about the biology.

Distribution in Sweden

Rare but widespread in Southern Sweden.

Remarks

This species has been confused with Ophion crassicornis Brock, 1982 and was also probably partly included in the description of that species. Ophion angularis Cederberg & Johansson sp. nov. is, however, both morphologically and genetically distinct.

Figures

Fig. 9. Epicnemial carina, antero-ventral view of female. A. Ophion splendens Johansson sp. nov., paratype, ♀ (NHRS-HEVA000008708). B. O. mocsaryi Brauns, 1889. C. O. dispar Brauns, 1895. D. O. parvulus Kriechbaumer, 1879. E. O. slaviceki Kriechbaumer, 1892. F. O. angularis Johansson & Cederberg sp. nov., paratype, ♀ (MZLU 6366:3). G. O. crassicornis Brock, 1982. H. O. areolaris Brauns, 1889. I. O. kallanderi Johansson sp. nov., paratype, ♀ (MZLU 6371:5).

Fig. 22. Ophion angularis Johansson & Cederberg sp. nov., paratype, ♀ (MZLU 6366:3). Scale bar = 1 mm.

Fig. 5. Phylogeny of Ophion inclinans Johansson sp. nov. and Ophion arenarius Johansson sp. nov. (BIN. BOLD: AAH1753) as obtained from cytochrome oxidase 1 (COI) sequences. Maximum likelihood tree is shown with clade support based on 150 bootstrap iterations using the General Time Reversible model and analysed with MEGA-X. The sample ids “NJBC” refer to the BOLD database.