Mapluroides, Diez, Patricia, Fidalgo, Patricio & Roig-Alsina, Arturo, 2007

Diez, Patricia, Fidalgo, Patricio & Roig-Alsina, Arturo, 2007, A new genus and species of Plumariidae (Hymenoptera, Chrysidoidea) from western xeric Argentina, Zootaxa 1467, pp. 35-41 : 36-38

Mapluroides new genus

Figs. 1–12

Type species: Mapluroides ogloblini n. sp.

Description. Head hypognathous; in frontal view 1.2X wider than height ( Fig. 1 ), seen from above twice wider than long; vertex rounded, without furrows or carinae; preoccipital carina absent. Eye hemispherical, protruding, glabrous, without paraocular carinae; inner margins converging below. Ocellocular distance 3.3X diameter of lateral ocellus; interocellar distance 1.1X ocellocular distance. Antennal socket with lower rim slightly elevated; antennocular distance 0.6X diameter of socket; interantennal distance 3.5X antennocular distance; surface between sockets convex, antennocular surface slanting towards eye margin. Gena without furrows or carinae. Apex of clypeus in frontal view slightly emarginate medially, apical margin recessed; epistomal suture mostly weak, scarcely noticeable around tentorial pit and close to mandibular articulation; apical setae of clypeus variable in size, some slightly longer than basal width of mandible; discal setae of clypeus forming a more or less regular, transverse row on each lateral third. Labrum small, visible in frontal view, slightly emarginate apically. Postgenal bridge slightly longer than diameter of foramen. Mandible with sharp long apical tooth and two sharp preapical teeth; setae of mandible of variable length, some slightly longer than basal width of mandible. Labium subrectangular, slightly wider at rounded apex; labial palpus with two segments, apical segment reduced ( Fig. 4 ). Maxillary palpus five segmented; proportion of segments (length:width): 31:16, 38:15, 38:14, 31:16, 34:17 ( Fig. 5 ). Antenna with 11 flagellomeres, tapering to apex; scape ventrally with large tuberculiform projection ending apically in blunt point ( Fig. 2 ), in dorsal view (opposite to projection) 1.25X longer than apical width. Pedicel narrow at base, apical width 1.1X its length. Proportion of flagellomeres (length:width): 17:9, 17:8, 19:8; 20:7; 19:7; 21:7; 19:7; 19:6; 18:7; 17:6; 20:6; flagellomeres with short, decumbent, abundant setae, longest setae nearly 0,25X as long as width of flagellomere; sensory plates large, ovoid, present on flagellomeres ( Fig. 3 ).

Mesosoma : 1.3 times longer than wide. Proportion of lengths of mesoscutum, mesoscutellum, metanotum, metapostnotum and propodeum along midline 1:0.95:0.46:0.15:0.58. Pronotum not visible dorsally, except for pronotal lobe laterally; medially forming narrow transverse band which broadens laterally to six times median heigth; posterior margin of pronotum laterally not continuous with margin of prontal lobe but forming a carina superimposed on the lobe, giving to it a bilobate aspect; lateroventral angle rounded ( Fig. 6 ). Propleuron extended anteriorly beyond pronotum, without lateral carina separating ventral and dorsal areas. Prosternum in ventral view much reduced, scarcely visible behind propleura ( Fig. 7 ), most of its exposed surface vertical, but a short horizontal upper sector present. Tegula semicircular. Parapsidal line and notaulus weak. Mesal area of axillae and scutellum forming nearly horizontal, posteriorly directed triangular surface which steeply slants laterally; axillar sutures indicated by conspicuous dark, continuous line. Prepectus forming narrow bar widest dorsally and tapering ventrally, usually hidden by pronotum. Hypoepimeral area of mesopleuron limited inferiorly by dark line running from mesopleural scrobe to meso–metapleural suture; mesepisternal groove present, as short dark line running antero–ventrally from mesopleural scrobe. Metanotum subrectangular, 0.46X as long as mesoscutum. Metapostnotum nearly flat, with anterior margin straight and posterior margin bowed, being broader medially and narrowest at level of propodeal spiracles. Propodeum convex, in dorsal view twice as broad as long; propodeal spiracle narrow, removed from anterior margin of propodeum by approximately its length. Legs slender; tibiae and tarsi with scattered weak setae, except fore and mid tibia apically and along outer margin with strong spiniform setae. Tibial spurs 1-2-2; anterior spur weakly curved, sharply pointed ( Fig. 10 ); fore basitarsus with shallow strigilar concavity approximately one third as long as basitarsus, bearing strigilar comb of fine setae; mid tibial spurs subequal, 1.5X as long as mid-tibial apical width; hind tibial spurs 1.7X as long as hind-tibial apical width. Claws simple, of similar size; arolium present only on foretarsus. Wings: forewing 3.8X longer than its maximum width; prestigma swollen apically; anterior margin of marginal cell as long as apical margin, approximately twice as long as slightly curved basal margin, and 3X longer than vein r–rs; first nebulous vein arising 1/3 below middle of apical margin of marginal cell ( Fig. 8 ). Hind wing with vannal lobe 2.1X as long as submedian cell ( Fig. 9 ).

Metasoma depressed, in dorsal view 3X longer than maximum width, spindle-shaped caudally; with sparse pubescence longer on sterna. First tergum with distinct anterior vertical, concave surface; in dorsal view longer and narrower than second. Seventh tergum subtriangular, apically rounded; posterior margin forming flat, sclerotized, polished ridge ( Fig. 11 ). First sternum longer than second, basal 2/3 with median longitudinal keel. Hypopygium apically almost truncate, weakly bilobed ( Fig. 12 ). Cercus well developed. Genital capsule as in figure 13.

Etymology. The generic name is an anagram of Plumaroides .

Figures

FIGURES 1 – 5. Mapluroides ogloblini n. sp.: 1, head, frontal view; 2, head, lateral view; 3, antenna; 4, labium, ventral view; 5, left maxilla, ventral view. Scale = 0.1 mm.

FIGURES 6 – 9. Mapluroides ogloblini n. sp.: 6, pronotum and mesoscutum, anterolateral view, t, tegula; 7, propleura and prosternum (pst), ventral view; 8, forewing; 9, hind wing. Scale = 0.1 mm.

FIGURES 10 – 13. Mapluroides ogloblini n. sp.: 10, foretibia; 11, seventh metasomal tergum, dorsal view; 12, hypopygium, dorsal view; 13, genital capsule, ventral view, setae depicted on left side only. Scale = 0.1 mm.