Oxyscelio lintris 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 II: the Australian and southwest Pacific fauna, ZooKeys 331, pp. 1-266 : 117-119

Oxyscelio lintris Burks sp. n. Figures 173-176; Morphbank61

Description.

Female. unknown.

Male. Body length 4.1-4.15 mm (n=3).

Radicle color and shade: darker than scape. Pedicel color: same as scape. A3: longer than pedicel. A5 tyloid shape: narrow, linear. A6: broader than long. A11: longer than broad.

Ventral clypeal margin: with slightly convex median lobe. Interantennal process: not elongate. Lower frons at dorsal margin of interantennal process: without transverse carina. Transverse curved rugae extending from frontal depression to eye: absent. Median longitudinal carina in frontal depression: absent. Ventral portion of frontal depression: with medially interrupted transverse carinae. Dorsal portion of frontal depression: without transverse carinae. Submedian carina: present. Frontal depression dorsally: not hood-like, open dorsally. Upper frons major sculpture: umbilicate foveate; transversely rugose. Upper frons microsculpture: granulate. Hyperoccipital carina: indicated by a set of irregular elevations. Carina connecting occipital carina to hyperoccipital carina: absent. Occipital carina: broadly angular, with rounded median peak. Occiput sculpture: irregularly sculptured. Extra carina ventral to occipital carina: absent. Gena length: shorter than eye. Major sculpture of gena anteroventrally: umbilicate foveate. Major sculpture of gena posteroventrally: umbilicate foveate; rugose. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: granulate.

Lateral pronotal area sculpture: anteriorly smooth, posterodorsal corner with dense microsculpture, ventral corner with irregular carinae. Posterior border of central pronotal area: directed posteriorly, epomial carina absent or meeting transverse pronotal carina at arch on lateral surface of pronotum. Mesoscutum anteriorly: not steep, forming less than a right angle. Major sculpture of mesoscutal midlobe anteriorly: umbilicate foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Median mesoscutal carina: present as a ruga. Major sculpture of mesoscutellum centrally: umbilicate foveate. Major sculpture of mesoscutellum peripherally: umbilicate foveate. Microsculpture of mesoscutellum centrally: absent. Microsculpture of mesoscutellum peripherally: absent. Mesoscutellar rim: not expanded. Mesoscutellar rim medially: without notch. Mesofemoral depression: longitudinally striate dorsally, smooth ventrally. Metascutellum shape: not emarginate, concave but elevated posteriorly. Metascutellar setae: absent. Metascutellum sculpture: with many longitudinal rugae. Postmarginal vein: present. Fore wing apex at rest: reaching middle of T6. Coxae color brightness: same color as femora. Spines along tibiae: absent. Lateral propodeal carinae: broadly separated, not parallel anteriorly. Setae in metasomal depression: absent. Anterior sculpture of metasomal depression: absent. Median propodeal carina: absent.

T 1 midlobe longitudinal carinae: 3. T3 metasomal flanges: absent. T4 metasomal flanges: absent. T5 metasomal flanges: absent. T6 metasomal flanges: absent. T7: broadly emarginate, with sharply pointed posterolateral lobes.

Diagnosis.

Male: A4, A11 longer than broad. Frontal depression moderately deep and mostly smooth, with interrupted transverse carinae ventrally and no carinae above dorsal separator; submedian carina sharp. Hyperoccipital carina represented by a set of rugae. Metascutellum subrectangular, with strong rugae. T1 midlobe with 3 complete longitudinal carinae. Fore wing long enough to reach middle of T6. T7 emarginate with tiny sharp posterolateral apices.

Etymology.

Latin noun, genitive case, meaning “trough.”

Link to distribution map.

[http://hol.osu.edu/map-full.html?id=307088]

Material examined.

Holotype, male: AUSTRALIA: NSW, Lord Howe Island, no date, A. M. Lea, OSUC 453949 (deposited in AMSA). Paratypes: AUSTRALIA: 2 males, OSUC 453950 (ANIC); OSUC 453951 (WINC).

Comments.

Oxyscelio lintris is an unusual species with a rugose metascutellum and short posterolateral corners on T7. This species is therefore of uncertain placement, but is provisionally placed in the aciculae-group because of its similarity to Oxyscelio productionis .