Oxyscelio latitudinis 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 : 152-154

Oxyscelio latitudinis Burks sp. n. Figures 288-293Morphbank83

Description.

Female. Body length 4.65-5.8 mm (n=15).

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

Interantennal process: not elongate. Median longitudinal elevation in frontal depression: present. Frontal depression: concave. Frontal depression sculpture: crossed by many tiny furrows. Submedian carina: weak, shallow and rounded or formed by ledge. Submedian carina medially: without peak. Concavity across dorsal part of frontal depression: absent. Depression extending ventrally from median ocellus: absent. Upper frons: not hood-like. 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: present, broad throughout its length. 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. Microscu lpture of gena posteroventrally: granulate. Median carina extending posteriorly from hyperoccipital carina: absent. Hyperoccipital carina: indicated by rugae. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate. Occipital carina medially: absent. Lateral corners of occipital carina: sharp and protruding.

Lateral pronotal area: without bulge projecting towards anterior pit. Epomial corner: strong. Netrion surface anteriorly: not inflexed. Mesoscutum anteriorly: not steep. Mesoscutal median carina: absent or weak and incomplete in places. Longitudinal carina between median carina and notauli: absent. Major sculpture of medial mesoscutum anteriorly: umbilicate-foveate. Major sculpture of medial mesoscutum posteriorly: umbilicate-foveate; longitudinally rugose. Microsculpture of medial mesoscutum anteriorly: granulate. Microsculpture of medial mesoscutum posteriorly: absent. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: granulate. Microsculpture of mesoscutellum laterally: granulate. Mesoscutellar apex: convex or straight; roundly concave. 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: more than 5. Metascutellum dorsally: flat; convex. Metascutellar sculpture dorsally: with scattered rugae. Median carina of metascutellum: absent or branched. Metascutellar setae: absent. Metascutellar apex: convex or straight; weakly emarginate. Metapleuron above ventral metapleural area: crossed by carinae. Metasomal depression setae: absent. Lateral propodeal carinae anteromedially: strongly diverging. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Lateral propodeal areas: separated medially. Postmarginal vein: present. Fore wing apex: reaching middle of T4; reaching apex of T4.

T1 midlobe: obscured by other raised sculpture. T1: with long anterior bulge, reaching metascutellum. T2: with straight longitudinal striae or rugae. T6: longer than broad. Apical flange of T6: not exposed apically. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: granulate.

Male. Body length 4.4 mm (n=1). A5 tyloid: carina-like, not expanded. A11: broader than long. Median tooth of frontal depression: absent. Median lobe of T1: with 5 longitudinal carinae. Metasomal apex: with acuminate lateral corners.

Diagnosis.

Both sexes: Frontal depression crossed by many carinae that are medially discontinuous. Mesoscutellum strongly granulate. Metascutellum dorsally bare. Female: A4 longer than broad, A5 about as long as broad. Metascutellum very broad, rugose. T1 with strong anterior horn. Fore wings not long enough to reach middle of T5. T5 and T6 elongate and nearly parallel-sided. Male: A11 broader than long. T1 midlobe with 5 longitudinal carinae; T7 with acuminate lateral corners.

Etymology.

Latin noun, genitive case, meaning “width.” Refers to the large metascutellum.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=275546]

Material examined.

Holotype, female: INDONESIA: Kalimantan Barat Prov., Cabang Panti Research Station, 1° rainforest / alluvial light gap, IIS 910122, Gunung Palung National Park, 01°15'S, 110°05'E, 100-400m, 15.VI-15.VIII.1991, malaise trap, Darling & Rosichon, OSUC 247927 (deposited in MBBJ). Paratypes: (15 females, 1 male) BRUNEI: 1 female, OSUC 376641 (BMNH). INDONESIA: 5 females, OSUC 369078 (CNCI); OSUC 228714 (MBBJ); OSUC 257092, 369076 (OSUC); OSUC 240913 (ROME). SINGAPORE: 5 females, 1 male, OSUC 436882-436883 (ANIC); OSUC 376753-376754, 376760, 376762 (MCZC). THAILAND: 4 females, OSUC 368733, 368751 (CNCI); UCRC ENT 135010, 135137 (UCRC).