Oxyscelio granorum Burks

Burks, Roger A., Masner, Lubomir, Johnson, Norman F. & Austin, Andrew D., 2013, Systematics of the parasitic wasp genus Oxyscelio Kieffer (Hymenoptera, Platygastridae s. l.), Part I: Indo-Malayan and Palearctic fauna, ZooKeys 292, pp. 1-263 : 125-127

Oxyscelio granorum Burks sp. n. Figures 235-240Morphbank71

Description.

Female. Body length 4-5.65 mm (n=20).

Radicle color: same color as scape. Scape color: Yellowish. A4: longer than broad; as long as broad. A5: broader than long. Antennal club: formed, segments compact.

Interantennal process: not elongate. Median longitudinal elevation in frontal depression: absent; present. Frontal depression: concave. Frontal depression sculpture: with 3 or more broadly interrupted transverse carinae. Submedian carina: strong, formed by a sharp raised carina. Submedian carina medially: without peak. Concavity across dorsal part of frontal depression: absent. Depression extending ventrally from median ocellus: absent. Upper frons: hood-like, protruding over pedicel when antenna at rest. Malar area near antennal foramen: without carina or expansion. Malar area at mouth corner: with radiating striae. Smooth strip along posterior side of malar sulcus: absent or not consistently broad. Middle genal carina: present. Direction of middle genal carina dorsally: parallel to eye margin. Major sculpture of gena anteriorly: umbilicate-foveate; rugose. Major sculpture of gena posteriorly: umbilicate-foveate; rugose. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: absent. Median carina extending posteriorly from hyperoccipital carina: absent. Hyperoccipital carina: complete, continuous with anterior genal carina. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: irregularly rugose; crenulate. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: not protruding.

Lateral pronotal area: with slight bulge projecting anteriorly towards anterior pit. Epomial corner: weak. Netrion surface anteriorly: not inflexed. Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete. Longitudinal carina between median carina and notauli: absent. Major sculpture of medial mesoscutum anteriorly: umbilicate-foveate. Major sculpture of medial mesoscutum posteriorly: umbilicate-foveate. Microsculpture of medial mesoscutum anteriorly: granulate. Microsculpture of medial mesoscutum posteriorly: granulate. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: granulate. Microsculpture of mesoscutellum laterally: granulate. Mesoscutellar apex: convex or straight. Setae along anterior limit of femoral depression: arising from rows of foveae. Number of carinae crossing speculum above femoral depression: 3. Number of carinae crossing femoral depression: more than 5. Mesepimeral sulcus pits: 3-5. Metascutellum dorsally: concave. Metascutellar sculpture dorsally: smooth or with transverse carinae. Median carina of metascutellum: absent or branched. Metascutellar setae: absent. Metascutellar apex: weakly emarginate. Metapleuron above ventral metapleural area: crossed by carinae. Metasomal depression setae: absent. Lateral propodeal carinae anteromedially: weakly diverging. Anterior areoles of metasomal depression: absent; one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Lateral propodeal areas: separated medially. Postmarginal vein: present. Fore wing apex: reaching apex of T6.

T1 midlobe: with 4 longitudinal carinae. T1: without anterior bulge. T2: with straight longitudinal striae or rugae. T6: broader than long. Apical flange of T6: exposed apically. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: granulate.

Male. Body length 3.6-5.25 mm (n=20). A5 tyloid: carina-like, not expanded. A11: longer than broad; as long as broad. Median tooth of frontal depression: absent. Median lobe of T1: with 4 longitudinal carinae. Metasomal apex: with no distinct corners.

Diagnosis.

Both sexes: Frons without elevation between antennal foramen and eye. Frontal depression hood-like. Hyperoccipital carina present and sharp, continuous with anterior genal carina. Mesoscutellum with granulate sculpture. Metascutellum without dorsal setae. Propodeum without median carina; lateral propodeal carinae very narrowly separated anteriorly. Female: Fore wings not long enough to exceed metasomal apex. T1 midlobe with 4 longitudinal carinae. T6 rounded apically. Male: A11 as long or longer than broad. T1 midlobe with 4 longitudinal carinae. T7 with rounded posterolateral corners. Oxyscelio granorum is similar to Oxyscelio intermedietas in having extensive granulate sculpture, but is larger and is much more extensively granulate.

Etymology.

Latin noun, genitive case, meaning “grains,” referring to the dominant bodily surface sculpture.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=275482]

Material examined.

Holotype, female: THAILAND: Nakhon Si Thammarat Prov., road to Mhen Mt., 150m from Nern 499, T3101, Namtok Yong National Park, 08°16.959'N, 99°39.149'E, 499m, 13. VIII– 20.VIII.2008, malaise trap, S. Samnaokan, OSUC 336125 (deposited in QSBG). Paratypes: (36 females, 38 males) INDONESIA: 6 females, 9 males, OSUC 368941-368942, 368954, 464005 (CNCI); OSUC 240930, 361273, 361718 (MBBJ); OSUC 248919, 257043 (OSUC); OSUC 240931, 247850, 247862, 247971, 352905, ROMEnt Spec. No. 112239 (ROME). LAOS: 4 males, OSUC 368872, 368874, 368888, 368906 (CNCI). MALAYSIA: 1 male, OSUC 376595 (BMNH). THAILAND: 27 females, 16 males, OSUC 335823, 335868, 352512 (BMNH); OSUC 368672, 368675-368676, 368724, 368763, 464046, 464050, 464061 (CNCI); OSUC 247872, 257399, 285204, 335864, 335866-335867, 335926, 336032, 336036, 336736, 352511 (OSUC); OSUC 237456-237457, 252035, 257396, 320371, 320374-320375, 320404-320405, 322078, 322086, 335860, 352484, 352513, 361356, 361375, 368493 (QSBG); UCRC ENT 41411 (UCRC); OSUC 335861, 335865, 335915 (WINC). VIETNAM: 3 females, 8 males, OSUC 369098, 369101 (CNCI); OSUC 277399-277401, 277517, 277704-277707, 281507 (RMNH).