Gasteruption nigrescens Schletterer, 1885

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 : 96-99

Taxon classification Animalia Hymenoptera Gasteruptiidae

Gasteruption nigrescens Schletterer, 1885 Figs 346-361

Gasteruption vagepunctatum var. nigrescens Schletterer 1885: 288.

Gasteruption nigrescens Schletterer, 1889: 391, 396, 420; Kieffer 1904a: 645, 1912: 250; Dalla Torre 1902: 1069; Schmiedeknecht 1930: 379; Hedicke 1939: 17; Ferrière 1946: 236, 239, 243; Šedivý 1958: 35, 36, 41; Györfi and Bajári 1962: 46, 50; Madl 1989b: 44, 1990a 129, 1990b 480; Wall 1994: 160; Scaramozzino 1995: 3; Pagliano and Scaramozzino 2000: 13, 17, 30; Schmid-Egger and Saure 2010: 40.

Gasteryption nigrescens ; Semenov 1892: 208.

Gasteryption foveiceps Semenov, 1892: 205-206. Syn. n.

Gasteruption foveiceps ; Dalla Torre 1902: 1067; Szépligeti 1903: 369; Kieffer 1912: 246; Hedicke 1939: 11.

Gasteruption caudatum Szépligeti, 1903: 369, 371; Kieffer 1904a: 639, 1912: 260; Schmiedeknecht 1930: 376; Hedicke 1939: 8; Györfi and Bajári 1962: 42; Malyshev 1965: 247; Madl 1990a: 129; Wall 1994: 148. Synonymized with Gasteruption nigrescens Schletterer by Madl, 1989b.

Type material.

Holotype of Gasteruption nigrescens (♀ from Italy, Toscana, Mt. Falterone) not found: (?NMW) and probably lost. Lectotype of Gasteruption caudatum here designated: ♀ (MTMA), "[Hungary]. Nagyvárad, leg. Mocsáry %/ teste Papp J., 1986", "Nvarad, Mocsary", " Gasteruption caudatum Szépl., det. Stohl", "Lectotypus Gasteruption caudatum Szépl. / des. Madl 1987"; paralectotype ♀ from Pápa (Hungary) and collected by Wachsmann. Holotype of Gasteruption foveiceps ♀ (ZISP) from Ukraine (Charkov) examined.

Additional material.

*Iran (Alborz, Chalous Road, Shahrestanak; Karaj, Sarziarat; Qazvin, Zereshk Road; Azer. e Sh., Sis, 10 km E of Shabestar, 1540 m; Boyer-A. o Kohg., Kuh Gol near Sisakht, 2500 m); Turkey (50 km S of Kars, Pasli; Konya, 30 km S of Aksehir; 20 km W of Van; 25 km E of Malatya, Kopeksiz; Muradiye; Sivas, near Gökpinar, 10 km S Gürün, 1500 m; Sivas, Cumhuriyet Univ.; Sivas, 45 km E of Yarhisar; 15 km E of Malatya; 20 km E of Gurun, Mezikiran Gecidi; Konya, 30 km S of Aksehir; Yüksekova; 15 km W of Refahye, W of Erzibcan, 1600 m; near Karabulak; Akyaka, 3 m; Avgadi, 30 km NW of Erdemli, 1300 m; Nemrut Dagi, Karadut; Hakkari, Aksali, 35 km S of Hakkari, 1700 m; Bolu, near lake; Isparta, Egirdir Gölu, 5 km N of Akkecili, 920 m; id., 8 km NE of Isparta, 1020 m; Kütahya, 20 km NEE of Kütahya; Mansisa, 35 km NW of Salihli, 900 m; 60 km W of Konya, Erflatun Pinar; Bursa, near Caglian; Cornelek, 40 km E of Mut; Burdur, 28 km SEE of Burdur, 1350 m; id., 20 km SW of Burdur, 940 m; id., 5 km NE of Yesilova, 1060 m; Van, Van, 1800 m; Agri, 30 km W of Eleskirt, 2200 m; Nevsehir, 5 km S of Avanos, Zelve, 1000 m; id., 10 km S of Avanos, Göreme, 1000 m; Ankara, Kizilcohaman, 1100 m; Adiyaman, Gölbasi, 900 m; Erzurum, Tortum, 1700 m; Hakkari, Mt. Sat, SW of Yüksekova, Varegös, 1650 m; Sivas, near Gökpinar, 10 km S of Gürün, 1500-1700 m).

Diagnosis.

Apex of ovipositor sheath dark brown, light brown (Fig. 350) or ivory, pale part 0.1-0.9 times as long as hind basitarsus; vertex slightly impressed or flattened medio-posteriorly in front of occipital carina; antesternal carina usually narrow; length of propleuron 0.8-0.9 times distance between tegulae and anterior border of mesoscutum (Fig. 347); occipital carina rather wide. but narrower than diameter of posterior ocellus (Figs 346, 352, 360); vertex medio-basally in front of occipital carina flat, without impression; third and fourth antennal segments rather stout; third antennal segment of female 1.5-1.7 times as long as second segment; segments of apical half of antenna rather long and ventrally black; frons more or less coriaceous, without discrete fine punctation; antero-lateral teeth of pronotum small; mesoscutum mainly coriaceous and anterior half of mesoscutum with large punctures or densely crater-like punctate, medio-posteriorly with coarse reticulation, its lateral lobes more or less sculptured as middle lobe; dorsally hind coxa mainly coriaceous; hind tibial spurs blackish or dark brown; ovipositor sheath 2.4-4.3 times as long as hind tibia and 0.9-1.1 times as long as body. Males have third antennal segment usually rather long and significantly longer than second segment (Fig. 358); paramere black or brown apically (Fig. 361).

Distribution.

C. and SE. Europe, Turkey ( Schmid-Egger and Saure 2010), new for Iran.

Biology.

Unknown. Collected in June-August in Turkey and Iran.

Notes.

Close to Gasteruption erythrostomum (Dahlbom) but this species has the ovipositor sheath shorter (1.7-2.6 times as long as hind tibia, 0.6-0.8 times metasoma, 1.1-1.6 times hind tibia and tarsus combined versus 2.7-4.3 (rarely 2.4-2.6) times as long as hind tibia, 0.9-1.3 (rarely 0.8) times metasoma and 1.7-2.7 times hind tibia and tarsus combined in Gasteruption nigrescens ), the mesoscutum of female mainly coriaceous with at most small superficial punctures and rather shiny antero-dorsally (punctures deep, medium-sized and more or less finely crater-like and mixed with fine punctures between punctures, rarely only coarsely punctate) and matt antero-dorsally; of male transversely rugulose or moderately rugose (more coarsely punctate in Gasteruption nigrescens ), the hind tibia of male black or dark brown ventrally (usually partly yellowish brown ventrally, rarely black), the occipital carina narrower collar-shaped and at most slightly sinuate (wider collar-shaped and often distinctly sinuate) and the mesoscutum hardly setose (rather setose) and the anterior half of pronotal side usually coriaceous ventrally, sometimes partly rugulose (mainly rugulose). Gasteruption foveiceps is synonymized despite that the head is more directly narrowed in dorsal view, the area between the antesternal carina and prepectal carina smooth or largely so, the occipital carina less widened, the mesoscutum usually more shiny and densely transversely rugulose or coriaceous-rugulose and its lateral lobes rugulose or rugose. However, this was not enough to separate Gasteruption foveiceps as a distinct taxon because intermediates were examined from Turkey.