Ooderella microptera, Gibson, Gary A. P., 2017

Gibson, Gary A. P., 2017, Revision of world Ooderella Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae), with description of the first males for the genus, Zootaxa 4289 (1), pp. 1-74 : 30-32

Ooderella microptera n. sp.

Figs 54–62

Type material. Holotype ♀ (CNC). “ PERU: Huanuco Rio | Llullapichis , 260m | 09°37'S 74°56'W | 1.ix.1981, primary forest | M. von Tschirnhaus, YPT / HOLOTYPE | Ooderella | microptera | Gibson ” . Holotype pointmounted by mesosternum; entire; uncontorted.

Etymology. A combination of the Greek words mikros (small) and pteron (wing), in reference to the very short wings of females.

Description. FEMALE (habitus: Fig. 57 ). Length = 2. 9 mm. Head ( Figs 54–57 ) variably green to brownish under different angles of light, but lower face most extensively green ( Fig. 54 ) and frontovertex most extensively brownish with limited green luster; in lateral view ( Fig. 55 ) comparatively highly convex with frontovertex quite abruptly angled relative to lower face so broadest below middle, slightly less than 1.4× as high as long; in frontal view ( Fig. 54 ) about 1.2× as wide as high; in dorsal view ( Fig. 56 ) about 1.65× as wide as long with interocular distance almost 0.4× head width without any indication of ocellocular mark, and with OOL: POL: LOL: MPOD = 13: 19: 13: 8. Frontovertex with both vertex and frons smooth and shiny except for widely scattered setiferous pits with pale hairlike setae ( Fig. 56 ). Scrobal depression ( Fig. 54 ) dorsally distinctly differentiated from frons, though primarily only by abrupt change in sculpture, with dorsal margin somewhat bell-shaped though angularly Π-like dorsomedially, and sinuately recurved to inner orbit ventrolaterally about midway to torulus, and below this with slender parascrobal region along inner orbit only obscurely differentiated from scrobal depression because both similarly, transversely reticulate; dorsally separated from anterior ocellus by about 1.6× ocellar diameter and ventrally delimited by Π-like furrow extending between toruli above meshlike coriaceous interantennal prominence. Interantennal prominence mediolongitudinally, lower face and parascrobal region with white lanceolate setae. Mandible bidentate with acute ventroapical tooth and broad, slightly incurved dorsoapical margin. Labial and maxillary palps yellow ( Fig. 58 : insert). Antenna ( Fig. 58 ) brown with slight greenish luster on scape and flagellum basally under some angles of light, the greenish flagellomeres with more distinctly contrasting white setae ( Fig. 54 ); length of flagellum + pedicel about 1.5× head width; scape slightly compressed and curved, similarly slender throughout; length[width] of scape: pedicel: funiculars: clava = 60[10]: 19[10]: 10[8], 21[9], 20[10], 23[12], 18[14], 16[15], 15[16], 14[17]: 40[18].

Mesosoma ( Figs 59–61 ) light brownish to yellowish-brown, mostly somewhat lighter brown than frontovertex, except pronotum dark posterolaterally anterior to spiracle and propleuron and lateral panel of pronotum ventrally paler, more yellowish ( Fig. 57 ). Legs ( Fig. 57 ) similar in color to mesosoma except coxae, trochanters, trochantelli, tibiae apically and tarsi paler, more yellowish-white. Pronotum in dorsal view ( Figs 56, 59 ) with collar transversequadrangular, about 2.25× as wide as long with anterolateral corners right-angled relative to anterior margin and anterior margin right-angled relative to abruptly inclined neck, the dorsal surface flat on either side of deep mediolongitudinal groove and with only a couple of whitish hairlike setae along outer and inner margins of each side. Mesoscutum ( Fig. 59 ) flat anteriorly and with lateral lobes carinately angled only near posterior margin; meshlike reticulate; with inconspicuous posteriorly directed setae of similar color as cuticle except posteromedially with ovate region of dense white lanceolate setae separated from posterior margin by distance somewhat less than width of tuft, with most of setae directed medially though some setae directed more anteromedially and a few setae directed more posteromedially, anteriorly and posteriorly, respectively. Scutellar-axillar complex ( Fig. 60 ) about 1.2× as long as basal width with hairlike setae of similar color as cuticle along lateral margins of axillae and scutellum; axillae reticulate, noticeably smaller than scutellum; scutellum longitudinally strigose, broadly teardropshaped, about 1.7× as long as greatest width, with distinctly differentiated, shiny and only obscurely meshlike coriaceous frenal area mostly concealed under metanotum. Tegula ( Figs 59, 61 ) uniformly covered with setae of similar color as cuticle except bare posterolaterally. Fore wing ( Fig. 60 ) extending slightly over base of propodeum to level of spiracle, about 2.7× as long as greatest width, flat, brownish-hyaline; submarginal vein extending virtually to angulate apical margin of wing with long apical-most seta extending obviously beyond apical margin of wing; costal cell bare ventrally or at most (left wing in lateral view) with one seta ventrally near base; membrane behind submarginal vein bare, without marginal setae. Mesopleurosternum ( Fig. 61 ) with region of dense white lanceolate setae forming setal tuft anteriorly on acropleuron, and mesopectus extensively but more sparsely setose with white lanceolate setae not extending to acropleural tuft or anterior margin of mesopectus, and those along acropleural sulcus somewhat longer only posteriorly; acropleuron smooth and shiny except finely coriaceous along dorsal and posterior margins. Metacoxa ( Fig. 61 ) densely setose with white lanceolate setae dorsally and ventrolaterally but bare longitudinally on outer surface. Propodeum ( Fig. 60 ) with both anterior and posterior margins deeply incurved at midline such that strongly recurved margins united into high median carina medially, otherwise shiny with only obscure, subeffaced coriaceous sculpture, and with a couple of white lanceolate setae anterior to spiracle and region of dense white lanceolate setae posterolaterally.

Gaster ( Figs 57, 62 ) brown except syntergum with slight greenish luster under some angles of light and lighter brownish-translucent beyond subapical row of setae, and tips of ovipositor sheaths yellow; shiny, finely meshlike coriaceous with sparse setae of similar color as cuticle in single row across tergites except syntergum more extensively setose; syntergum ( Fig. 62 ) about as long as basal width and longer than penultimate tergite, with dorsal surface in similar plane such that syntergal flange poorly differentiated as posteriorly rounded bare region beyond setae; ovipositor sheaths projecting only slightly beyond syntergal flange.

Distribution (Map 2B). Peru.

Remarks. The holotype of O. microptera is superficially most similar to females of O. smithii because among those species with a highly convex head having a smooth and shiny frons and distinctly delimited scrobal depression extending to near the anterior ocellus, only females of these two species have setal tufts on the acropleuron as well as posteriorly but not anteriorly on the mesoscutum ( Figs 59 , 95, 96 ). Females of O. smithii are most readily differentiated by the presence of more distinct ocellocular marks and relatively much longer antennae. However, females of the two species also have somewhat different head structures. In lateral view, that of O. smithii is broadest within its dorsal half ( Fig. 91 ), whereas in O. microptera the head is broadest in its ventral half ( Fig. 55 ). Further, in O. smithii the scrobal depression is curved out from the torulus to the lower inner orbit so that parascrobal regions are lacking and dorsally the depression is broadly arched between the inner orbits ( Fig. 90 ), whereas O. microptera has slender, reticulate parascrobal regions and dorsally the scrobal depression is more angularly (^-like) arched between the inner orbits ( Fig. 54 ). Except for the lack of a differentiated region of lanceolate setae anteriorly on the mesoscutum, O. microptera is also similar to O. stenoptera , as keyed.

The fore wing of O. microptera has a single vein extending to or almost to the apical margin of the wing ( Fig. 60 ), which must consist of more than just the submarginal vein because the membrane behind it extends for a short distance beyond the costal cell, though distinct stigmal or postmarginal veins are not evident. The somewhat broader fore wing of O. smithii does not have the vein extending to the apical margin and likely consists of just the submarginal vein ( Fig. 97 ).

Figures

FIGURES 54 – 62. Ooderella microptera n. sp., holotype ♀: 54, head, frontal; 55, head, lateral; 56, head and pronotum, dorsal; 57, lateral habitus; 58, antenna [insert: mandibles]; 59, pronotum and mesoscutum; 60, scutellar-axillar complex to propodeum plus wings; 61, mesosoma, lateral; 62, gaster, dorsal.

FIGURES 90 – 98. Ooderella smithii Ashmead ♀. 90 – 93, 2016 - 86: 90, head, frontal; 91, head, lateral; 92, head and pronotum, dorsal; 93, lateral habitus. 94, lateral habitus (2015 - 4). 95, pronotum and mesoscutum (2016 - 86). 96 & 97, 2015 - 4: 96, pronotum and mesoscutum; 97, scutellar-axillar complex to propodeum plus wings. 98, mesosoma, lateral (2016 - 86).