Xenomerus parorinetalis 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 : 41-42

Xenomerus parorinetalis Mikó & Masner , new species

Figures 66, 68

FEMALE (Holotype): Length= 1.21 mm.

Dark brown, interantennal process, radicle, A2 apically, A3–A6, legs, excluding brown coxae and apical tarsomeres yellow, mandible light brown.

FCI =1.12; LCI =1.78; HW/IOS =1.55; head less than 1.5 times as wide as mesosoma (HW/TSL = 1.24); facial striae exceeding midlevel of eye, straight, not curved inward dorsally, exceeding frontal patch, frontal patch indistinct; frons setae sparse, thin; central keel complete; toruli triangle shorter than clypeus height; POL more than two times as long as OOL (POL/OOL =2.14); OOL equal LOL (OOL/LOL =1.0); hyperoccipital carina present, blunt, not extending to inner orbit; reticulate sculpture of vertex slightly extending to frons and interocellar area; genal patch present, separated from vertex sculpture; A1 about 3.5 times as long as radicle (A1/r =3.43), slightly shorter than clava (A1/cl =0.91).

Epomial carina present, almost reaching pronotal suprahumeral sulcus; cervical pronotal area smooth, with scattered setae; lateral pronotal area with transverse crenulae, reticulate above epomial carina; netrion sulcus absent; netrion sculpture slightly extending onto lateral pronotal area ventrally; pronotal suprahumeral sulcus diminishing medially, pronotal cervical sulcus complete, both sulci foveolate; mesoscutum more than 1.5 times as wide as long (TSL/ML =1.64); notaulus reaching transscutal line; mesoscutum coriaceous, with dense thin setae, setal bases pustulate, reticulate sculpture extending to lateral and inter notaular area, not reaching posterior margin of mesoscutum; mesoscutellum about two times as wide as long (SW/SL =2.18); scutoscutellar sulcus distinctly diminishing medially, 3–4 times as wide laterally as in the middle; mesoscutellum smooth, with sparse, long marginal setae; posterior scutellar sulcus 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 wide as foveae width of postacetabular sulcus; mesopleural carina complete, with complete rows of foveae; posterior row of foveae of mesopleural carina and mesepimeral sulcus distinctly separated; sulcus along metapleural carina foveolate; epicoxal and lower part of metapleural sulci distinctly separated; metascutellum sharply pointed; propodeal lateral carinae inverted Y-shaped, shafts straight; propodeal lateral area and plical area obscured by pale, dense setae, marginal striation extending medially; plica absent; posterior propodeal projection distinct, well developed;

mesoscutum about as wide as fore wing (TSL/WW =1.19); marginal vein 4 times as long as stigmal vein (m/ st =3.36); hind wing about than 2 times as wide as marginal cilia length (HWW/HWS =1.94).

T1 about 2 times as wide as T1+T2 length (T1W/T1+T2L =1.92); T3 about as wide as mesoscutum (T3W/TSL =0.91), costae on T3 extending almost to posterior margin of tergum submedially, reaching 8/9 part of tergum, laterally and medially costae exceeding middle of tergum; lateral patch distinct; diameter of posterior patch of T3 equal to width of one basal depression; anterior half of T4 reticulate.

Variability (n=2): Length= 0.92–1.21 mm. HW/IOS =1.46–1.55; HW/TSL =1.24–1.30; POL/ OOL =2.14–2.25; OOL/LOL =0.98–1.00; A1/cl =0.86–0.91; TSL/ML =1.57–1.64; SW/SL =2.05–2.18.

MALE: FCI =1.29; LCI =1.96; HW/TSL =1.37; POL/OOL =2.0; OOL/LOL =1.16; A1/r =2.91; A5 modified; A7–A11 unibottled; TSL/WW =0.86; m/st =2.8; HWW/HWS =1.75; T1W/T1+T2L =1.66.

Diagnosis. Most closely related to X. orientalis , differing by the less extended and straight facial striae, POL:OOL ratio, yellow A3–A6, sculpture of T3, hyperoccipital carina not extended and anteriorly extended reticulate sculpture of vertex and anteriorly smooth mesoscutellum.

Etymology. The name refers to its similarity with X. orientalis .

Material examined. Holotype female: THAILAND: Uthai Thani Dist. Khao Nang Rum , 400m, V.1986, M.G.Allen, MT [ BMNH: BMNH:HYM.9.926] . Paratypes: THAILAND: Uthai Thani Dist. Khao Nang Rum , 400m, V.1986, M.G.Allen, MT, 1♀ [ BMNH], 2♀ . Holotype is deposited in BMNH . Paratypes are deposited in BMNH (1) and CNCI (2) .