Xanthopria Brues, 1915: 9

MASNER, LUBOMÍR & GARCÍA R, JOSÉ LUIS, 2002, The Genera Of Diapriinae (Hymenoptera: Diapriidae) In The New World, Bulletin of the American Museum of Natural History 2002 (268), pp. 1-138 : 112-113

Xanthopria Brues, 1915: 9 .

DIAGNOSIS (♀): Small­sized individuals (1.5 mm), body color ferrugineous, head and mesosoma, including legs and tegula, entirely sculptured, granular­coriaceous; metasoma past petiole smooth, body relatively glabrous with only few appressed golden hairs, no hairy cushions but some parts of body with minute pilosity, foamy structures developed; face in profile straight, almost perpendicular to frons; clypeus rather protruding, deep broad cleft between clypeus and upper margin of mandibles; scutellar disc pillowshaped, convex, median and lateral keels not developed; forewing with only minute microtrichia on disc, marginal cilia entirely absent.

DESCRIPTION (♀): HEAD. Head subglobular, frons unarmed, antennal shelf moderate, not margined posteriorly, antennal shelf only moderately protruding, level of torulus approximately in lower half of eye; eye relatively large, ovoid, with posterior orbit not sinuate; ocelli relatively small, ommatidia rather large, highly convex, raspberry­like, ommatidium only slightly smaller than ocellus; oral carina not developed, postgenal cushion not developed; occipital flange rudimentary; face in profile straight, almost perpendicular to frons; clypeus rather protruding, deep, broad cleft between clypeus and upper margin of mandible; epistomal and malar sulcus shallow and tentorial pit not developed; hypostomal bridge well developed; palpal formula 4–2; antenna 11­segmented, with nonabrupt 5–6­segmented clava, clavomeres subrectangular, with narrow gaps, A11 larger than A10, A1 cylindrical, unarmed apically. MESOSOMA. Pronotum in dorsal view moderately developed, pronotal shoulder absent, side of pronotum almost flat, epomium not developed, shoulder region with massive patch of foamy structures; propleuron with scattered foamy structures; mesoscutum as long as wide, only moderately convex, slightly depressed medially, without sulci or lines; anterior scutellar pit shallow, slightly transverse, without ridges; scutellar disc pillow shape, convex, median and lateral keels not developed; posterior margin of axilla weakly carinate; axillar depression with abundant foamy structures and same appressed pilosity; mesopleuron rather flat, with distinct oblique submedian line; sternaulus not developed; dorsellum moderately developed; keels weakly developed, metapleuron entirely covered with appressed short silvery pilosity; metasternum with foamy structures; propodeum moderately long, median keel produced anteriorly into blunt projection turned backward; plica partly developed, area between plica and keel with dense appressed pilosity; posterior margin of propodeum only moderately excised, rather rimlike­projecting; forewing with only minute microtrichia on disc, marginal cilia entirely absent, submarginal vein moderately upcurved, stigmal vein strongly developed, basal vein not developed; legs rather short and stout, tarsi not compressed. METASOMA. Petiole very short, slightly transverse, cylindrical, with dense fine pilosity, without longitudinal keels; metasoma past petiole only slightly convex; syntergite rather broad anteriorly, smooth, shining, almost glabrous; S2 anteriorly without specialized spot.

RECOGNITION AND RELATIONSHIPS: Among the Neotropical genera with 11­segmented female antenna Xanthopria is recognized by two apomorphies: the deep cleft between clypeus and mandibles and the absence of marginal cilia in forewing. The intense sculpture on head and mesosoma also appears diagnostic for the genus. Brues (1915) described two species, X. opaca (type species) and X. nitida ; after examination of the types (MCZC) we decided to transfer X. nitida to Acanthopria (new combination). Xanthopria is interpreted as specialized derivative of Acanthopria .

MALE: Unknown.

DISTRIBUTION: We examined two specimens of X. opaca , the holotype, and a female (CNCI), both from Brazil.

BIOLOGY: Host and habits unknown, but possible association with ants is highly probable.