Oxyscelio naraws Kozlov & Le

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 : 171-174

Oxyscelio naraws Kozlov & Le Figures 327-332Morphbank90

Oxyscelio naraws Kozlov & Lê, 2000: 40, 326 (original description).

Description.

Female. Body length 3.75-5.45 mm (n=20).

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

Interantennal process: not elongate. Median longitudinal elevation in frontal depression: absent. Frontal depression: concave. Frontal depression sculpture: with 3-5 complete 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: 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: 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. Major sculpture of gena posteriorly: umbilicate-foveate; rugose. Microsculpture of gena anteroventrally: absent; granulate. Microsculpture of gena posteroventrally: absent; granulate. Median carina extending posteriorly from hyperoccipital carina: absent. Hyperoccipital carina: not indicated medially. 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: 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: absent. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: absent; granulate. Microsculpture of mesoscutellum laterally: granulate. Mesoscutellar apex: convex or straight. Setae along anterior limit of femoral depression: arising from rows of foveae; arising from tiny pits. Number of carinae crossing speculum above femoral depression: 2. Number of carinae crossing femoral depression: more than 5. Mesepimeral sulcus pits: more than 5. Metascutellum dorsally: flat. Metascutellar sculpture dorsally: with scattered rugae. Median carina of metascutellum: absent or branched; straight, unbranched carina present. Metascutellar setae: absent. Metascutellar apex: convex or straight. 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: absent. Fore wing apex: reaching apex of T4; reaching middle of T5.

T1 midlobe: obscured by other raised sculpture. T1: with small rounded anterior bulge, not 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; longitudinally striate or rugose. Microsculpture of T6: absent; granulate.

Male.Body length 3.3-4.3 mm (n=7). 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. Mesoscutellum strongly granulate. Metascutellum dorsally bare. Female: Metascutellum fingernail-shaped, rugose. T1 with strong anterior horn. T6 strongly narrowing towards nearly acuminate apex. Male: T1 midlobe with 5 longitudinal carinae. T7 with sharp, protruding posterolateral corners.

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=179750]

Material examined.

Other material: (32 females, 7 males) BRUNEI: 1 female, OSUC 376628 (BMNH). INDONESIA: 4 females, OSUC 368961 (CNCI); OSUC 247838, 248920, 257093 (ROME). MALAYSIA: 12 females, OSUC 376579, 376612 (BMNH); OSUC 369031, 369035-369036, 369040, 463996 (CNCI); OSUC 268183-268184, 268186-268187, 268210 (USNM). THAILAND: 15 females, 7 males, OSUC 247643, 320373, 320412, 335201, 335203, 335838, 335863, 335914, 335927, 336030, 336033, 336035, 336121, 352502-352504, 361334, 361336, 361338, 361343, 368533, 368538 (OSUC).

Comments.

Oxyscelio naraws exhibits a wide range of variation in the lengths of A4, A5, the metascutellum, and the metasoma in females. This may indicate that it represents a suite of very similar species, but no convincing consistent features were found to support any separation.