Xenomerus bickeli Mikó & Masner, 2010

Mikó, I., Masner, L. & Deans, A. R., 2010, World revision of Xenomerus Walker (Hymenoptera: Platygastroidea, Platygastridae) 2708, Zootaxa 2708, pp. 1-73 : 16-17

Xenomerus bickeli Mikó & Masner , new species

Figures 83, 84

FEMALE (Holotype): Length= 1.51 mm.

Dark brown, interantennal process, radicle, A3–A6, legs excluding apical dark brown tarsomeres yellowish.

FCI =1.25; LCI =1.65; HW/IOS =1.58; head less than 1.5 times as wide as mesosoma (HW/TSL =1.41); facial striae reaching midlevel of eye, parallel on frons, obscuring frontal patch; frontal patch indistinct; frons setae sparse, thin; central keel complete; toruli triangle shorter than clypeus height; POL slightly longer than OOL (POL/OOL =1.15); OOL slightly longer than LOL (OOL/LOL =1.66); hyperoccipital carina absent; vertex entirely reticulate, finely crenulate between lateral ocellus and inner orbit; genal patch present, separated from vertex sculpture; A1 less than 5.0 times as long as radicle (A1/r =4.58), about as long as clava (A1/cl =0.96).

Epomial carina present, reaching pronotal suprahumeral sulcus; cervical pronotal area smooth, with sparse setae; lateral pronotal area with fine, transverse crenulae, anteriorly finely foveolate; netrion sulcus complete, fore coxa distinctly wider than netrion; pronotal suprahumeral and cervical sulci complete, foveolate; mesoscutum less than 1.5 times as wide as long (TSL/ML =1.35); notaulus normal, almost reaching transscutal line; reticulate sculpture of mesoscutum not extending to inter and lateral notaular areas; mesoscutellum less than 2.0 times as wide as long (SW/SL =1.80); scuto-scutellar sulcus slightly diminishing medially, 2–3 times as wide laterally as in the middle; mesoscutellum smooth, with sparse, long marginal setae; posterior scutellar sulcus not extending onto axillula; sternaulus not separated from anterior row of foveae of mesopleural carina; distance between postacetabular sulcus and anterior row of foveae of mesopleural carina two times as long as foveae width on postacetabular sulcus; mesopleural carina complete, with complete rows of foveae; in lower part of mesepimeral sulcus fine crenulae erecting from foveae anteriorly; sulcus along metapleural carina foveolate; metascutellum sharply pointed, metanotal spine not elongated; propodeal lateral carinae inverted Y-shaped, shafts distinctly curved outward; propodeal lateral area and plical area obscured by pale, dense setae, marginal striation extending medially; posterior propodeal projection indistinct; fore wing wider than mesoscutum (TSL/WW =0.73); marginal vein more than 3.5 times as long as stigmal vein (m/st =3.88); hind wing two times as wide as marginal ciliae length (HWW/ HWS =2.0).

T1 as wide as T1+T2 length (T1W/T1+T2L =1.02). T3 less than 1.5 times as wide as long (T3W/ T3L=1.22), as wide as mesoscutum (T3W/TSL =1.04); costae on T3 reaching middle tergum submedially; lateral patch distinct, elongate, 4–5 time as long as wide; posterior patch of T3 absent; anterior half of T4 reticulate with median smooth area.

MALE: Unknown.

Diagnosis. Most closely related to X. gloriosus , differs by A4 equal to A3, frontal patch obscured by facial striae, shorter POL, less wide netrion, well developed metanotal spine and presence of posterior patch on T3. Differs from X. varipes and X. laticeps in head widest below midlevel.

Etymology. the name refers to the collector, D. Bickel.

Material examined. Holotype female: AUSTRALIA: Victoria, Otway Natinal Park, Blanket Bay , 4– 5.XII.1994, D.Bickel, YPT [ ANIC:####] . Holotype is deposited in ANIC .