36 BULLETIN AMERICAN MUSEUM OF NATURAL HISTORY NO. 304 – Lower face flat (fig. 38), not protruding in lateral view. Pronotal crest not gradually raised anteriorly into a conspicuous ridge (fig. 39). Speculum without longitudinal costae (fig. 39). Median propodeal area distinctly delimited by percurrent lateral propodeal carinae, posteriorly not foveoate-reticulate (fig.41) .............. trisetosus group 5. Occiput distinctly carinate vertically. Pronotal crest not distinctly raised into a conspicuousridge .............. apeosus group – Occiput glabrous or vertically carinate. If occiput distinctly carinate vertically, <strong>the</strong>n pronotal crest always distinctly raised into a conspicuous ridge . . . . . . . . . . . . . . . . 6 6. Pronotal crest always low anteromedially and mesoscutum always convex dorsally (figs. 49, 57). Scutellar foveae divided by strong submedian, longitudinal carinae (figs. 50, 58). Posterior margin <strong>of</strong> metasomal T7 <strong>of</strong> female impressed, distinctly exposing T8 (fig. 53).................. ruficollis group – Pronotal crest low (figs. 66, 88, 97) or raised into a conspicuous peak anteromedially (fig. 75) and mesoscutum dorsally convex (fig. 66) or flat (fig. 76). Scutellar foveae usually not divided by strong submedian, longitudinal carinae. Posterior margin <strong>of</strong> metasomal T7 <strong>of</strong> female straight or smoothly curved, usually covering T8 entirely (figs. 70, 79, 92, 98). Rarely <strong>the</strong> scutellar foveae are subdivided and, if so, <strong>the</strong> pronotal crest always raised into a conspicuous peak anteromedially, T7 always covering T8, and mesoscutum flat dorsally . . punctulatus group TAXONOMY OF SPECIES GROUPS VIRGINIANUS GROUP figures 22–29 This species group currently contains only one species from eastern North America. DIAGNOSTIC CHARACTERS: Size relatively small. Antenna filiform, not distinctly enlarged apically. Female antenna has 13 segments with F1 distinctly shorter than F2. All flagellomeres have placodes, which are short, not as long as <strong>the</strong> segments, and are densely distributed on all medial to distal segments (fig. 24). Eye extended laterally, distinctly beyond outer margin <strong>of</strong> gena. Antennal scrobe defined by apparent lateral carina. Median frontal carina simple, and present only between antennal sockets (figs. 22, 23). Occiput glabrous. Pronotal crest not raised dorsomedially. Dorsal pronotal area glabrous. Lateral surfaces <strong>of</strong> pronotum evenly curved anteroventrally, foveate-reticulate, without secondary transverse costae and punctures, and not separated dorsomedially by an extended, less sculptured anterior area. Lateral pronotal carina distinct, but not reaching pronotal crest dorsomedially. Mesoscutum transversely carinate with distinct foveae set in between (fig. 25). Mesoscutellum sloped posteriorly; posteriorly broadly rounded; dorsally foveate-reticulate. Scutellar sulcus is divided into two foveae by median longitudinal carina. Axillar area without conspicuous pubescence (figs. 25, 26). Mesopleural triangle well defined by a smoothly curved carina. Upper mesopleuron glabrous (fig. 25); speculum with setigerous punctures posterodorsally (fig. 1). Median mesopleural impression straight, narrowed toward ends, and with two to three vertical carinae. Metepisternum alveolate-reticulate in upper half and pubescent ventrally (fig. 25). Wings slightly smoky; Rs-M from middle <strong>of</strong> basalis. Apical teeth <strong>of</strong> metatibia long and pointed (fig. 28, 29). First metatarsomere without apical protuberance and shorter than <strong>the</strong> combined length <strong>of</strong> <strong>the</strong> second to fifth metatarsomeres. Lateral propodeal carinae simple, not raised into strong keel or process, and median propodeal area usually with a median longitudinal carina, or two submedian longitudinal carinae, crossed by a modified transverse carina (fig. 26). T6 is at least twice as long as o<strong>the</strong>r terga along dorsal margin. T7 <strong>of</strong> female with posterior margin curved dorsolaterally, distinctly exposing T8 (fig. 27). Paramblynotus virginianus, new species figures 1, 22–29 FEMALE: Length 3.5–5 mm. Body black entirely except tibiae and tarsi <strong>of</strong> legs, which are yellow to yellowish brown. Wings slightly smoky, somewhat darker across middle. Face, gena, and vertex foveate-reticulate (figs. 22, 23); foveae on vertex longitudinally set in rows in <strong>the</strong> spaces between eye and posterior ocelli (figs. 22, 23). Median frontal carina only shortly present between antennal sockets. Anterior tentorial pit small, but distinct. Clypeo-pleurostomal sulcus and epistomal sulcus form a smoothly curved arch; clypeus
2007 LIU ET AL.: REVISION OF PARAMBLYNOTUS (HYMENOPTERA) 37 Figs. 22–29. P. virginiatus. 22, Head, front view, R; 23, head, dorsal view, R; 24, antennal F1–2, lateral view (exterior), R; 25, mesosoma, lateral view, R; 26, scutellum and propodeum, dorsoposterior view, R; 27, metasoma, lateral view, R; 28, end <strong>of</strong> metatibia showing apical teeth, R; 29, metatibia, lateral view, R.
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