Dinotrema achterbergi Peris-Felipo

Peris-Felipo, Francisco Javier, Belokobylskij, Sergey A. & Jiménez-Peydró, Ricardo, 2013, Six new Dinotrema species (Hymenoptera, Braconidae) from Spain, with prescutellar pit and medially sculptured propodeum, Zootaxa 3694 (6), pp. 545-564 : 546-548

Dinotrema achterbergi Peris-Felipo , sp. nov.

( Figs 2–13 )

Etymology. Named in honor Dr Cornelius van Achterberg, well-known Netherland hymenopterist for his great contribution to the study of the World Braconidae .

Type material. Holotype: female, Spain, Castellon Province, Pobla de Benifassà, Natural Park of Tinença de Benifassà, 10.06.2004 (F.J. Peris-Felipo leg.) (ENV). Paratype: 1 female, same label as in holotype, but 0 3.06.2004 (ENV).

Description. Female.

Head. In dorsal view, 1.70x as wide as median length, 1.45–1.50x as wide as mesoscutum, smooth, with rounded temples behind eye. Eye in lateral view 1.50x as high as wide and 1.15x as wide as temple. POL 2.70x OD; OOL 2.60x OD. Face 0.80x as wide as high; inner margins of eyes subparallel. Clypeus 3.10–3.15x as wide as high, slightly curved ventrally. Paraclypeal fovea elongated, reaching the middle distance between clypeus and eye. Mandible widened towards apex, 1.20–1.25x as long as its maximum width. Upper tooth large, but shorter than middle tooth. Middle tooth longest, wide basally and narrowed towards apex, rounded apically. Lower tooth short and wide, weakly longer than upper tooth, rounded apically. Antennae thick, more than 14-segmented (apical segments missing). Scape 1.70–1.80x as long as pedicel. First flagellar segment 2.50–2.60x as long as its apical width, 1.35–1.40x as long as second segment; second segment 2.05–2.10x as long as its maximum width. Middle flagellar segments about 1.50x as long as their width.

Mesosoma. In lateral view, 1.05x as long as high. Mesoscutum 1.10–1.20x as long as maximum width, with numerous setae in its middle part. Notauli absent at most posterior part. Mesoscutal pit present and elongate. Prescutellar depression weakly and sparsely sculptured, with fine median carina. Sternaulus (precoxal suture) present, not reaching anterior and posterior parts of mesopleuron. Posterior mesopleural furrow slightly crenulate below. Propodeum smooth, with median longitudinal carina crossing from anterior to posterior margins, with usually short carinae emerging from longitudinal carina far not reaching propodeal margins. Propodeal spiracles relatively small.

Legs. Hind femur 4.25x as long as wide. Hind tibia weakly widened to apex, about 10.00x as long as its maximum subapical width, 1.20–1.25x as long as hind tarsus. First segment of hind tarsus 2.10x as long as second segment.

Wings. Length of fore wing 2.50x its maximum width. Vein r1 present. Radial cell reaching to apex of wing, 3.60–3.70x as long as its maximum width. Nervulus weakly postfurcal. Brachial cell closed, short, distinctly widened apically, 2.05–2.10x as long as its maximum width. Hind wing 8.30x as long as its maximum width.

Metasoma. Distinctly compressed laterally. First tergite weakly widened towards apex, 2.60x as long as its apical width, entirely almost smooth. Ovipositor 1.30x as long as first tergite, distinctly shorter than metasoma, 0.65–0.70 as long as hind femur.

Colour. Body and legs brown to dark brown. Wings hyaline. Pterostigma brown.

Length. Body 1.95-2.00 mm; fore wing 1.80-1.85 mm.

Male. Unknown.

Diagnosis. This new species resembles Dinotremsa occipitale (Fischer) , D. dimorphum (Fischer) and D. glabrum (Stelfox et Graham) . Dinotrema achterbergi sp. nov. differs from D. occipitale in having the first flagellar segment thick, 2.50–2.60x as long as wide (3.30x in D. occipitale ), mandible 1.20x longer than wide (1.50x in D. occipitale ) and first metasomal tergite almost smooth (distinctly sculptured in D. occipitale ). It also differs from D. dimorphum in having the first flagellar segment thick, 2.50–2.60x as long as wide (3.50x in D. dimorphum ), numerous setae on middle part of mesoscutum (only two rows of double setae in D. dimorphum ), and mandible 1.20-1.25x as long as its maximum width (1.40x in D. dimorphum ). Finally, D. achterbergi sp. nov. differs from D. glabrum in having the first flagellar segment thick, 2.50–2.60x as long as width (3.00x in D. glabrum ), ovipositor much shorter than metasoma (as long as metasoma in D. glabrum ), and first metasomal tergite almost smooth (sculptured in D. glabrum ). Amongst the Spanish species, D. achterbergi sp. nov. is similar to D. jimenezi Peris- Felipo, but differs in having the first metasomal tergite 2.60x as long as its apical width (1.80x in D. jimenezi ), upper tooth medium size (large size in D. jimenezi ), prescutellar depression without median and lateral carinae (with coarse median and fine lateral carinae in D. jimenezi ), mesoscutal pit elongated (oval in D. jimenezi ) and hind femur 4.25x as long as its maximum width (3.60–3.70x in D. jimenezi ).

Figures

FIGURES 2 – 7. Dinotrema achterbergi sp. nov. (female) 2. Habitus, lateral view. 3. Head, lateral view. 4. Mandible. 5. Antenna. 6. Head, dorsal view. 7. Mesosoma, lateral view.

FIGURES 8 – 13. Dinotrema achterbergi sp. nov. (female) 8. Mesonotum. 9. Propodeum. 10. Hind leg. 11. First metasomal tergite. 12. Metasoma and ovipositor. 13. Fore wing.