Comprehensive Description

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Female. Antenna about the same length as body; body length 2.4 mm; forewing 2.6 mm. Head. Face with shallow and sparse punctures and sparse, uniformly distributed setae. Face width at antennal base/face width at clypeus edge: 1.1×; intertentorial pit distance/face width at clypeus edge: 0.4×; compound eye height/head height: 0.8×; head height/width: 0.8×; face width at antennal base/head maximum width: 0.5×; malar space/basal width of mandible 1.4×; clypeus width/height: 3.5×. Length/width of flagellomeres: 2nd (2.4×), 8th (2.5×), 14th (1.3×). Length of flagellomere 2nd/length of flagellomere 14th: 2.2×. Ocello-ocular distance/posterior ocelli diameter: 2.2×; distance between posterior ocelli/ocelli diameter: 1.3×.  Mesosoma. Pronotum with two lateral grooves present, the lower one excavated. Mesoscutum more or less uniformly sculptured by shallowly impressed punctures (distance between punctures about the same as their diameter). Mesoscutum 1.3× wider than long. Mesoscutum and scutellum uniformly covered by dense, pale yellow pilosity. Scutellum mostly smooth, with very shallow and sparse punctures. Scutellum length/width at base 1.1×. Scutellar suture broad, with 4-6 costulae. Posterior band of scutellum polished. Scutellar lateral face with polished area less than 20% the face height and less than half the face width. Mesopleuron mostly smooth and glabrous, except for punctures on the anterior margin and setae on all margins; separated from metapleuron by crenulate sulcus. Metapleuron mostly smooth, with some punctures and setae in the apical half; metapleuron with a crenulated, longitudinal sulcus running from lower margin near metacoxa through spiracle. Metapleural carina raised with a short lamella. Propodeum mostly smooth; with a median carina well defined and raised its entire length; and with a clearly complete transverse carina that reaches the spiracles and forks around them (there are also additional, shorter transverse carinae). Transverse carina on propodeum delimiting two areas, the anterior, basal one that is more or less horizontal, and the posterior, apical one is declivous.  Metasoma. Mediotergite 1 mostly smooth and with a deep medial groove over its basal half; slightly widening for the first quarter of its length, then narrowing towards apex; basal width/apical width 1.5×; length/apical width 3.3×. Mediotergite 2 mostly smooth, transverse, subtriangular to trapezoidal in shape; basal width/apical width 0.3×; length/apical width 0.4×. Mediotergite 3 1.5× the length of mediotergite 2. Mediotergite 3 and following unsculptured, polished and with sparse setae. Hypopygium mostly inflexible but with a median, translucid fold ventrally where 1–2 weak pleats are sometimes distinguishable. Ovipositor sheaths fully setose, 0.7× as long as metatibia length.  Legs. Metacoxa long, surpassing the length of the third metasomal tergum. Metatibial inner spur 1.4× the length of outer spur, and 0.5X the length of metatarsomere 1. Metafemur 3.2× as long as wide.  Wings. Vein R1a 1.3× as long as stigma length. Stigma 3.3× as long as wide. Length of R1a about 14× as long as the distance between its end and the end of 3RSb. Vein r and 2RS evenly curved to very slightly arched, with no clear limits between the two veins. Vein 2M about the same length of vein (RS+M)b. Edge of vannal lobe of hind wing medially straight to slightly concave and with uniformly distribute setae which are shorter than those at base and apex of the lobe.  Colour: Mostly yellow, with antennal flagellomere, forewing stigma and most of the wing veins, light brown.  Male. Mostly like females, but some specimens with darker interocellar area and mediotergites 3+. We associate these males with these females because of their morphological similarity.


Creative Commons Attribution 3.0 (CC BY 3.0)

© James B. Whitfield, José L. Fernández-Triana, Daniel H. Janzen, Winnie Hallwachs, M. Alex Smith, Sophie Cardinal

Source: ZooKeys

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