Gasteruption brevibasale van Achterberg & Saure

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 : 54-56

Taxon classification Animalia Hymenoptera Gasteruptiidae

Gasteruption brevibasale van Achterberg & Saure sp. n. Figs 48-62

Type material.

Holotype, ♀ (RMNH), "TR [= Turkey], 54 km W [of] Kayseri, Göreme, 38°39'N, 34°52'E, 17.vii.1998, TR-nevA, [C.] Schmid-Egger". Paratypes (5 ♀): 1 ♀ (CSEC), same label data; 4 ♀ (BZL, RMNH) "Turkey, 15 km W [of] Refahye, W of Erzincan, 1600 m, 7.vii.2000, M. Halada".

Diagnosis.

Head in front of occipital carina without depression (Fig. 54), in lateral view slightly convex dorsally and occipital carina narrow medio-dorsally and non-lamelliform (Fig. 48); vertex and frons matt, finely and densely coriaceous; antesternal carina narrow and non-lamelliform, antesternal carina and prepectal carina medio-ventrally similarly developed (Fig. 49); head subquadrate and gradually narrowed behind eyes in dorsal view and temples convex (Fig. 54); temple 0.9 times as long as eye in dorsal view; fourth and fifth antennal segments of ♀ 1.2 and 1.1 times as long as third segment, respectively; fourth segment of ♀ 0.7 times as long as second and third segments combined; apical antennal segment 1.8 times as long as penultimate segment; head not protruding below eyes and malar space 0.3 times length of second antennal segment and 0.2 times basal width of mandible and mandibular condylus close to lower level of eyes (Fig. 53); mandible dark brown and with deep basal depression; eye setose; propleuron stout, with satin sheen, 0.7 times as long as mesoscutum in front of tegulae and coriaceous (Fig. 49); antero-lateral teeth of pronotum absent; mesoscutum stout and inconspicuously setose (Fig. 50), anteriorly truncate, matt and largely finely and densely coriaceous; hind femur short and widened (Fig. 55), ventro-basally slightly depressed (Figs 57, 60, 62); hind coxa matt and coriaceous (but rugulose postero-dorsally); hind tibia inflated, its basal petiolar part short and wide in dorsal view (Figs 58, 59, 61); ovipositor sheath 0.4 times as long as metasoma, 0.7 times as long as hind tibia and tarsus combined and 1.0-1.2 times as long as hind tibia; apex of ovipositor sheath dark brown; length of body 9-10 mm.

The new species shares with Gasteruption paglianoi the widened hind femur and apically yellowish brown antenna; the new species has the hypopygium (except apically) dark brown (entirely pale yellowish brown in Gasteruption paglianoi ), the hind femur slightly depressed ventro-basally (slightly convex) and the short and widened basal petiolar part of the hind tibia (medium-sized and narrower).

Description.

Holotype, female, length of body 9.0 mm (of fore wing 4.9 mm).

Head. Vertex and frons matt, finely and densely coriaceous and in front of occipital carina without medial depression (Fig. 54), in lateral view slightly convex and occipital carina narrow medio-dorsally and non-lamelliform (Fig. 48); head subquadrate and gradually narrowed behind eyes in dorsal view, convex laterally (Fig. 54); temple 0.9 times as long as eye in dorsal view; fifth antennal segment 1.1 times as long as third segment; clypeus nearly flat medially and only near ventral margin impressed; head not protruding below eyes and malar space 0.3 times as long as second antennal segment (Fig. 53).

Mesosoma. Length of mesosoma 1.7 times its height; pronotal side high, largely coriaceous with faint rugulae, matt and grooves narrow and distinct; antero-lateral teeth of pronotum absent; propleuron with satin sheen and coriaceous, 0.7 times as long as mesoscutum in front of tegulae and stout (Fig. 49); antesternal carina non-lamelliform, antesternal carina and prepectal carina medio-ventrally similarly developed (Fig. 49); mesoscutum stout and inconspicuously setose (Fig. 50), anteriorly truncate, matt and largely finely and densely coriaceous; scutellum similarly but more superficially sculptured than mesoscutum.

Legs. Hind coxa matt and mainly coriaceous, but rugulose postero-dorsally; hind femur distinctly widened (Fig. 55) and ventro-basally slightly concave (Figs 57, 60, 62); hind tibia strongly inflated, 3.3 times as long as hind femur and its basal petiolar part short and widened in dorsal view (Figs 58, 59, 61); length of hind femur, tibia and basitarsus 3.1, 3.0 and 3.9 times their width, respectively, and with very short setae; hind basitarsus widened basally in dorsal view and as long as remainder of tarsus; pale hind tibial spurs contrasting with dark brown hind basitarsus.

Metasoma. Ovipositor sheath 0.4 times as long as metasoma, 0.7 times as long as hind tibia and tarsus combined and 1.2 times as long as hind tibia; hypopygium shallowly incised (Fig. 52).

Colour. Black or blackish-brown; tegulae, palpi, pterostigma, ovipositor sheath (including apex), metasoma (but second-fourth tergites orange brown apically) and legs dark brown, but base of fore and middle tibiae and subbasal band of hind tibia ivory; hind tibial spurs yellowish-brown; apex of hypopygium pale brown; wing membrane subhyaline.

Male. Unknown.

Variation. Length of body of ♀ 9.0-9.8 mm; length of ovipositor sheath 1.0-1.2 times as long as hind tibia; apical 0.3-0.7 of antenna yellowish brown; coxae dark brown or black.

Distribution.

Turkey.

Biology.

Unknown. Collected in July.

Etymology.

Named after the short petiolate base of the hind tibia; “brevis”, is Latin for “short”, and “basis”, is Latin for “base”.