Amblyscelio striaticeps Kieffer 1913
Creators: name: Popovici, Ovidiu Alin
name: Masner, Lubomir
name: Notton, David G.
name: Popovici, Mariana
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Scelionidae
Amblyscelio
Amblyscelio striaticeps

description: Amblyscelio striaticeps Kieffer, 1913
(Figs 1–3)
Amblyscelio striaticeps Kieffer, 1913: 260; Kieffer, 1926: 391; Muesebeck & Walkley, 1956: 327; Kelner-Pillault, 1958: 149; Kozlov, 1971: 40, 54; Masner, 1976: 30; Kozlov, 1978: 616; Johnson, 1992: 335; Kononova & Kozlov, 2008: 221.
Female
Body size: 3.4–3.5 mm.
Colour: body black; radicle black; scape yellow in basal third, the rest light brown; A2–A4 light brown dorsally and reddish-yellow ventrally; A5–A12 black; in one specimen A7–A12 black, A5–A6 yellowish (Figs 1 E, 1H); wing veins brown; legs yellow, in one specimen, legs excluding coxae reddish-yellow, coxae reddish-brown.
Head transverse in dorsal view, 2.1–2.2 times as wide as long and 1.1 times as wide as mesosoma. Occipital carina present. Hyperoccipital carina present (Figs 1 C–D), conspicuous (Fig. 1 C) or hardly visible (Fig. 1 D). OOL 1.8–2.0 times as long as diameter of posterior ocellus. POL 1.8–2.0 times as long as LOL. Distance between compound eyes (measured at level of anterior ocellus) 1.9–2.2 times as long as POL. Interommatidial setae silvery, short (visible only above 100X). Compound eye 1.3–1.4 times as high as long, large, 1.9–3.0 times as long as temple and 2.7–3.0 times as high as the length of cheek. Inner orbits diverging ventrally (Fig. 1 H). Orbital carina present. Frontal depression shallow, unmargined, submedian carina absent. Antennal scrobe present, lustrous. Central keel present (Fig. 1 G), not bifurcate, strongly developed, in some specimens as long as the height of the frontal depression. Interantennal prominence conspicuous, torulus on anterofrontal surface of interantennal prominence (Fig. 1 G). Malar sulcus absent. Genal carina present. Facial striae present, conspicuous (Figs 1 G–H). Clypeus broad, prominent, with pointed corners. Median carina continuous with interantennal prominence (Figs 1 G–H). Mandible tridentate, teeth subequal, acute, dorsal tooth the longest, median tooth the shortest. Number of maxillary palpomeres: 4. Number of labial palpomeres: 2. Vertex, interocellar space and cheek with very conspicuous striation (Fig. 1 C). In two specimens, vertex, behind hyperoccipital carina with areolate-rugulosepunctuate sculpture (Fig. 1 D). Space between anterior ocellus and frontal depression areolate-rugose to areolaterugulose-punctuate. Temple and space between compound eye and frontal depression longitudinally striate. Antenna 12-segmented (Figs 1 A, 1E, 1H). A3 distinctly elongate (Figs 1 E, 1H). Scape 3 times as long as radicle (Fig. 1 H). A1 4.8–5.1 times as long as wide and 3.6–3.8 times as long as A2. A2 1.7–2.0 times as long as wide and 0.6–0.7 times as long as A3. A3 the longest flagellomere, 2.1–3.0 times as long as wide and 1.4–1.8 times as long as A4. A4 1.4–1.7 times as long as wide and 1.4–1.7 times as long as A5. A5 1.1 times as wide as A4. A5 0.8–1.0 times as long as wide and 1.1–1.4 times as long as A6. A6 0.6–0.7 times as long as wide and 0.7 times as long as A7. Clava non-abrupt. Claval formula A7–A12: 2:2:2:2:2:1. A12 1.1 times as long as wide and 1.4–1.6 times as long as A11.
Mesosoma 1.0–1.1 times as long as wide. Dorsal epomial carina present, well developed, pronotal shoulders strongly developed, rounded anteriorly. Longitudinal epomial carina indicated by small granules. Cervical pronotal area small, oblique, largely hidden in dorsal view, colliculate. Lateral pronotal area broad, deeply concave, medially smooth, laterally areolate-rugulose to punctuate. Pronotal suprahumeral sulcus conspicuous. Dorsal pronotal area visible in dorsal view. Netrion present, spindle-like, closed. Netrion convex, smooth medially, crenulate marginally. Crenulae more conspicuous along pro-mesothoracic suture. Mesoscutum convex, 1.8–2.3 times as long as mesoscutellum. Mesoscutum densely-foveolate anteriorly, areolate-rugose near transscutal articulation. Skaphion absent. Antero-admedian line present. Notauli present, percurrent, almost parallel, deeply incised, narrow, slightly shallower posteriorly. Mesoscutal humeral and suprahumeral sulci crenulate, indistinct; humeral sulcus more conspicuous than suprahumeral sulcus. Parapsidal line present. Longitudinal median mesoscutal line absent. Parascutal carina present. Transscutal articulation narrow. Mesoscutellar axillar complex transverse, 2.2–2.3 times as wide as long. Mesoscutellum areolate rugose, dorsal axillar area crenulate. Mesoscutellum weakly convex, unarmed, posterior mesoscutellar sulcus crenulate. Mesoscutellum length 4.0–4.3 times length of metascutellum. Metascutellum produced into a rectangular plate (Fig. 1 J), 3.8–4.3 times as wide as long. Sometimes metascutellum deeply excavate medially (Fig. 1 I). Mesopleuron almost glabrous, with scattered hairs. Speculum present, with 5–6 transverse carinae. Femoral depression lustrous or with very weak sculpture. Mesopleural pit present. Sternaulus absent. Mesopleural carina present in two specimens and absent in two others. Posterodorsal corner of mesopleuron obtuse. Mesepimeral sulcus crenulate. Posterior mesepimeral area broad and lustrous. Propodeal-metapectal complex short in dorsal view, medially excavate, lateral propodeal carina present. Lateral propodeal area irregularly rugulose, metasomal depression transversely carinate. Metapleuron entirely sculptured, metapleural sulcus present. Ventral metapleural area with more conspicuous sculpture than dorsal metapleural area. Macropterous, apex of fore wing surpassing apex of metasoma (Figs 1 A–B). Fore wing covered with dense, short microtrichiae. Fore wing 2.6–2.8 times as long as wide, 1.26 as long as hind wing. Fore wing 3.7–3.8 times as long as width of mesosoma. Fore wings with tubular submarginal, marginal, postmarginal and stigmal veins and with nebulous medial, anal, basal, discoidal and radial veins. Postmarginal vein 4.3–5.0 times as long as marginal vein. Marginal vein 0.3–0.4 times as short as stigmal vein. Marginal vein wide and dark (Fig. 1 A). Fore wing infuscate around veins (Figs 1 A–B). Hind wing 3.7–3.9 times as long as wide, with 3 hamuli and with complete submarginal vein. Marginal fringe short, width of hind wing 12.0–12.3 times length of marginal fringe. Trochantellus present on all legs, tibial spur formula 1:1:1. First leg the shortest.
Metasoma pedunculate (Figs 1 A–B), compressed, with 7 terga, 6 sterna visible externally. Laterotergites well developed, narrow. Metasoma 1.7–1.8 times as long as mesosoma and 1.7–1.9 times as long as wide. Anterior margin of T1 carinate, sublaterally with shallow depressions, T1 horn absent, usually longitudinally costate. T1 0.8–0.9 times as long as its minimal width. Ratio between maximum and minimum width of T1 1.4–1.8. T2, 1.1–1.2 times as long as T1, maximum width of T2 2.5–2.9 as long as its length. Ratio between maximum and minimum width of T2 1.6–1.7. Sculpture of T2 longitudinally costate. T3 longest, 1.5 times as long as T2 and 1.9–2 times as long as T4. Maximum width of T3 1.7–1.9 times its length and ratio between maximum and minimum width of T3 1.0–1.1. T3 areolate-rugulose, in one specimen areolate-rugulose-punctate. T4 1.5–1.6 times as long as T5. T5 1.1–1.5 times as long as T6. Ratio between maximum and minimum width of T4 1.3–1.4. Ratio between maximum and minimum width of T5 1.6–1.7. Length of T6 0.3 times its maximum width. Ovipositor telescopic, Scelio - type (Fig. 2).
Male
Similar to female, differs in:
Body colour: antenna brown, except the reddish scape (Fig. 1 F); coxae brown, rest of legs reddish-yellow in two specimens; legs entirely yellow in one specimen.
Antenna filiform, A5 modified (sex-segment), A5–9 subspherical (Fig. 1 F). Length of A1, 3.0–4.3 times width, and 3.1–4.3 times length of A2. Length of A2 1.2–1.4 times width, 0.4–0.5 times length of A3. A3, the longest funicular segment 2.2–2.6 times width and 1.1–1.2 times length of A4. Length of A4, 1.9–2.1 times width and 1.1–1.2 times length of A5. Width of A4 1.0–1.1 times width of A5. Length of A5, 1.8–2.0 times width, 1.1–1.3 times length of A6. Length of A6 1.6–1.7 times width, 0.9–1.0 times length of A7. Length of A12 2.7–2.8 times width in male and 1.4–1.5 times length of A11.
Metasoma pedunculate (Figs 1 A-B), constricted anteriorly, depressed, with 8 terga and 7 sterna visible externally, T3 the longest.
Material examined
GREECE: 1 female, Lake Kerkini, near Vironia, Malaise trap, 750 m above sea level, Ramma site, 30.vi.–6.vii.2008, N 41º17’42.5” E 23º11’33.1”, leg. G. Ramel (OPPC); 1 female, Lake Kerkini, near Neo Petrisi, Malaise trap, Beabies site, 3–9.ix.2008, N41º19’15.4, E 23º13’39.6, leg. G. Ramel (CNCI); 1 male Lake Kerkini, Malaise trap, Farfara site, 15–21.ix.2008, N41°19' 30,5 E 23°15'00,1, 750 m above sea level, leg. G. Ramel (OPPC); 1 male Lake Kerkini near Vironia, Malaise trap, 750 m above sea level, Ramma site, 8–14.ix.2008, N 41º17’42.5” E 23º11’33.1”, leg. G. R a m e l (O P P C). SLOVENIA: 1 male Postojne 20.vii.1958, wooded hill n.-w. of town, R.L. Coe, B.M. 1958-417 (BMNH).
Distribution (Fig. 3)
Amblyscelio striaticeps is a Palaearctic species with a Mediterranean distribution.
description: Published as part of Popovici, Ovidiu Alin, Masner, Lubomir, Notton, David G. & Popovici, Mariana, 2013, A review of Western Palaearctic Amblyscelio and Baryconus (Hymenoptera: Platygastroidea, Platygastridae), pp. 325-342 in Zootaxa 3599 (4) on pages 327-329, DOI: 10.11646/zootaxa.3599.4.2, http://zenodo.org/record/219161