Dimophora ocellata, Seraina Klopfstein, 2016

Seraina Klopfstein, 2016, Nine new species of Dimophora from Australia (Hymenoptera: Ichneumonidae): new insights on the distribution of a poorly known genus of parasitoid wasps, Austral Entomology 55, pp. 185-207 : 99

Dimophora ocellata sp. n.

http://zoobank.org/urn:lsid:zoobank.org:act:44E10E35- DE88-401C-B2A4-2BC2DEA8C7A3 Figure 9

Etymology

The name of this species refers to the enlarged ocelli.

Diagnosis

(Female unknown). Forewing length 4.1–4.4 mm (holotype: 4.4). Antenna with 32–34 (32) flagellomeres. Head between eye and antennal base flat, without protrusion. Ocelli of male enlarged, distance of hind ocellus to compound eye about one diameter of ocellus. Mesoscutum about as long as wide to slightly shorter. Mesopleuron smooth and shining between strong punctures and with large impunctate area around speculum. Area superomedia of propodeum about 1.3–1.8 times longer than wide; areas of propodeum smooth and shining between strong punctures.

Description

Head Clypeus moderately large, convex when viewed from side, margin convex; mandibles with lower tooth longer than upper tooth. Occipital carina complete, evenly arched or straight above. Genal carina joining oral carina briefly before reaching base of mandible. Whole head coriaceous and matt, face and clypeus with dense and strong punctures, vertex with some sparse punctures. Antenna with last flagellomeres about as long as wide, scape excised at an angle of about 45°.

Mesosoma Pronotum with epomia weak to distinct; mesoscutum with notauli weak, barely reaching behind level of tegula; mesopleuron with sternaulus deeply impressed; scutellum not carinate. Propodeum with complete set of strong carinae; metapleuron with short vertical carina arising above mid coxa. Mesosoma smooth and shining and with strong and dense punctures, mesoscutum but not scutellum coriaceous between punctures. Wings slightly tinged, radial cell along anterior margin of wing 1.0–1.25 (1.05) times as long as stigma, areolet large, almost rhombic; hind wing with outer veins reduced, usually not pigmented except at base. Legs simple, hind coxa coriaceous and matt.

Metasoma First tergite 1.45–1.7 (1.6) times as long as second tergite, second tergite 1.45–1.7 (1.55) times wider apically than basally. First tergite with rather shallow but long glymma, petiolus flattened; first sternite reaching to about half length of tergite, its sides parallel. Third tergite with laterotergite separated by crease at most at base; metasoma weakly compressed from tergite 3 onwards. Tergites smooth and shining, almost impunctate, tergites 1 and 2 with weak longitudinal striae. Male clasper bluntly rounded.

Colouration of male

Head orange, yellow around malar space; antenna black or dark brown, lighter brown towards base and with orange scape and pedicel. Mesosoma and legs orange, hind femur often darker orange to brown, yellow or ivory around knee, hind tibia and tarsi brown; forewing with stigma often lighter in anterior half. Metasoma black, orange basally and apically on tergite 1, all orange on tergites 2 and 3 and with narrow, yellow bands apically on all tergites.

Material examined

Holotype #m: QLD, Desally Ck., 10 km WbyN Mt. Carbine, 16.30S, 144.55E; ANIC. Paratypes: NT, Black Point Cobourg Pen.; 31.i.1977; leg. E.D. Edwards; ANIC: 1#m. QLD, 13 km E by S Weipa, Malaise trap. 12.40S, 143.00E; 20.iii– 20.iv.1994; leg. P. Zborowski; ANIC: 1#m. 16.ii–20.iii.1994: 1#m. 20.iii.-20.iv.1994: 1#m. QLD, Mt. Cook National Park, 15.29S/145.16E; 10–12.v.1981; leg. I.D. Naumann; ANIC: 1#m. QLD, S, Coen, Malaise trap. E; 13.i–25.ii.1994; leg. P. Zborowski, W. McKay; ANIC: 1#m. QLD, The Bend, 3 km NbyW Coen. 13.56S, 143.12E; 25.vi.1989; leg. I.D. Naumann; ANIC: 1#m.

Figures

Fig. 9. Holotype of Dimophora ocellata sp. n. (a) Habitus. (b) Head. (c) Mesoscutum and head. (d) Head and mesosoma from lateral, showing mesopleural sculpture. (e) Propodeum. (f) Metasoma. Scale bars represent 2 mm (a) and 0.5 mm (b, c, d, e, f).