Gasteruption aciculatum van Achterberg

van Achterberg, Cornelis & Talebi, Ali Asghar, 2014, Review of Gasteruption Latreille (Hymenoptera, Gasteruptiidae) from Iran and Turkey, with the description of 15 new species, ZooKeys 458, pp. 1-187 : 47

Taxon classification Animalia Hymenoptera Gasteruptiidae

Gasteruption aciculatum van Achterberg sp. n. Figs 5-13

Type material.

Holotype, ♀ (RMNH), "Turkey; (Van), 30 km N [of] Baskale, 2700 m, 11.vii.1987, R. Hensen".

Diagnosis.

Head flattened dorsally, in front of occipital carina with small and shallow medio-posterior depression (Fig. 12); face moderately wide (Fig. 11); frons and vertex rather matt and densely and very finely transverse aciculate (Fig. 12); occipital carina narrowly lamelliform and dark brown; vertex without punctures; mandible dark brown basally; propleuron stout, coriaceous and 0.7 times as long as mesoscutum in front of tegulae; antesternal carina narrow and non-lamelliform; middle lobe of mesoscutum transversely rugose, without punctures and with satin sheen, lateral lobe regularly transversely rugulose with fine coriaceous interspaces and medio-posteriorly irregularly reticulate-rugose (Fig. 8); scutellum superficially coriaceous, weakly transversely rugulose and with satin sheen; ventral half of mesopleuron and metapleuron silvery pilose (Fig. 7); hind basitarsus dark brown basally, apical half largely ivory; hind tibia moderately slender and with subbasal ivory patch (Fig. 13); ovipositor sheath 0.9 times as long as body, 1.4 times as long as metasoma, 2.6 times as long as hind tibia and tarsus combined and 4.2 times hind tibia; white apical part of ovipositor sheath 2.1 times as long as hind basitarsus; length of body 11 mm.

Description.

Female, length of body 11.2 mm (of fore wing 5.5 mm).

Head. Head flattened dorsally, in front of occipital carina with small and shallow medio-posterior depression (Fig. 12); face anteriorly conspicuously silvery pilose; occipital carina narrowly lamelliform, dark brown (Figs 5, 7, 12); third and fourth antennal segments 1.6 and 2.2 times as long as second segment, apical segment 1.9 times as long as penultimate segment; face moderately wide (Fig. 11); frons and vertex rather matt and densely and very finely transverse aciculate (Fig. 12); ventrally head not enlarged in anterior view, malar space 0.3 times length of pedicellus.

Mesosoma. Length of mesosoma 1.7 times its height; propleuron stout and 0.7 times as long as mesoscutum in front of tegulae, matt and distinctly coriaceous; laterally pronotum largely rugose antero-ventrally and superficial coriaceous postero-ventrally; side of pronotum with medium-sized obtuse tooth antero-ventrally; antesternal carina narrow and non-lamelliform; middle lobe of mesoscutum transversely rugose, without punctures and with satin sheen, lateral lobe regularly transversely rugulose with fine coriaceous interspaces and medio-posteriorly irregularly reticulate-rugose (Fig. 8); notauli narrow and moderately impressed; scutellum superficially coriaceous, weakly transversely rugulose and with satin sheen; coriaceous dorsal area of mesopleuron large; mesopleuron ventrally and metapleuron silvery pilose (Fig. 7).

Legs. Length of hind femur, tibia and basitarsus 4.6, 4.4 and 5.2 times their width, respectively; hind tibia moderately slender and ventrally curved (Fig. 13); hind coxa densely rugulose antero-dorsally, transversely striate postero-dorsally; hind basitarsus moderately slender, as long as remainder of tarsus and hardly widened in dorsal view.

Metasoma. Ovipositor sheath 0.9 times as long as body, 1.4 times as long as metasoma, 2.6 times as long as hind tibia and tarsus combined and 4.2 times hind tibia; white apical part of ovipositor sheath 2.1 times as long as hind basitarsus (Fig. 10).

Colour. Black; mandible, antenna from fourth segment, tegulae, palpi, pterostigma, fore and middle femora and tibiae (except ivory base and apex of tibiae), telotarsi, hind tarsus (except apical ivory part of basitarsus and apices of second-fourth segments), metasoma (but second-fourth tergites apically and apical half of hypopygium and apices of other sternites yellowish brown), more or less dark brown; hind tibia subbasally and apical half of hind basitarsus ivory; hind tibial spurs dark brown and slightly paler than base of hind basitarsus; remainder of tarsi yellowish brown; apex of ovipositor sheath white; wing membrane slightly infuscate.

Male. Unknown.

Distribution.

Turkey.

Biology.

Unknown. Collected in July.

Etymology.

Named “aciculatum”, because of the very finely aciculate frons and vertex.