Parastethynium Lin and Huber 2007, gen. nov.
Creators: name: Huber, John T.
name: Read, Jennifer D.
name: Triapitsyn, Serguei V.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mymaridae
Parastethynium

description: Parastethynium Lin and Huber, gen. nov. (Figs. 280–284)   
 Type species: Parastethynium maxwelli (Girault), by present designation.   
 Diagnosis. Parastethynium belongs to the Anagrus group of genera. It is distinguished from other genera in the group by the following combination of features: eye conspicuously setose (Fig. 284) and fore wing with apex strongly truncate (Fig. 280).   
 Description. Female. Head (Fig. 284) with height about 0.85 x width, and length about 0.64 x width. Setae relatively long and conspicuous. Face with subantennal grooves (Fig. 284). Toruli separated from transverse trabecula by 1.5 x their height. Ocelli large, in equilateral triange: LOL = 3.5, POL = 3.5, OOL = 2.0. Eye large, round, with numerous short setae among the ommatidia and its posterior margin dorsally not extending to back of head. Malar space 0.4 x eye height. Antenna (Fig. 281) with radicel fused to scape; pedicel normal, distinctly wider apically than basally; funicle 6-segmented; clava 3-segmented, with oblique sutures. Mandibles with 2 distinct ventral teeth and a broad, serrate dorsal ridge with 4 small teeth (Fig. 284).   
Mesosoma (Fig. 283) as wide as high and about 1.4 x as long as wide, with dorsal margin flat except anteriorly where pronotum at lower level than mesoscutum. Pronotum almost vertical, scarcely visible in dorsal view, about 0.2 x length of mesoscutum and longitudinally divided medially, each lobe with 2 anterior setae and 2, more widely separated posterior setae. Spiracle moderate in size, at posterolateral angle of pronotum. Prosternum diamond-shaped, with trace of median longitudinal groove and with two setae in posterior half. Mesoscutum about 2.2 x as wide as long, the midlobe with two setae in posterolateral angle next to notauli and each lateral lobe with seta sublaterally. Notauli distinct and percurrent. Scutellum about 1.6 x as long as mesoscutum; anterior scutellum about 0.6 x as long as posterior scutellum, with placoid sensilla close together and in anterior half of anterior scutellum (in specimens from Indonesia, abutting each other and anterior margin of scutellum) and a long seta laterally at junction with axilla beside each placoid sensillum; posterior scutellum apparently undivided or only partly divided by a longitudinal suture in posterior half. Mesophragma widely truncate apically and extending posteriorly into base of gaster. Dorsellum extremely short, less than 0.1 x as long as posterior scutellum, with a short submedial seta sublaterally. Propodeum in same plane as scutellum and less than 0.2 x its length; spiracle small, propodeal seta near posterolateral angle of propodeum.  
Fore wing (Fig. 280) about 2.5 x as long as wide and truncate apically; blade with discal microtrichia dense beyond venation and numerous behind venation; longest setae of marginal fringe about 0.05 x maximum wing width; venation slightly longer than 0.33 x wing length, with marginal vein (measured as distance between macrochaetae) about 0.4 x length of submarginal vein, and stigmal vein about 0.65 x length of marginal vein; hypochaeta just basal to proximal hypochaeta. Hind wing (Fig. 280) 7.5 x as long as wide, slightly wider apically than basally and with its apex rounded; blade with microtrichia numerous in apical half, more scattered posteriorly and with a distinct row anteriorly in basal half beyond venation; setae of marginal less than maximum wing width.  
Legs with tarsi 4-segmented and each basitarsus about one-fifth as long as entire tarsus; fore leg (Fig. 282) without evident peglike sensilla on outer surface of tibia and tibial spur bifurcate, without setae on inner surface (Fig. 282). Middle leg with tibial spur slightly longer than basitarsus and hind leg with tibial spur slightly shorter than basitarsus.  
Metasoma about 1.4 x as long as mesosoma, with very short, inconspicuous petiole, and gastral tergum 5 slightly the longest tergum. Gastral spiracle absent. Ovipositor as long as gaster and slightly exserted beyond gastral apex (Fig. 283).  
 Male. Unknown.   
 Body length. 565–922 µm.   
 Distribution. Australia, Indonesia.   
 Hosts. Unknown.   
 Derivation of genus name. From para-, Greek prefix meaning beside or near, + Stethynium, the genus in which the type species was originally described and refering to the similarity to Stethynium. Gender: neuter.
description: Published as part of Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2007, Paranaphoidea Girault 1913, pp. 1-111 in Zootaxa 1596 on pages 56-57, DOI: 10.11646/zootaxa.1596.1.1, http://zenodo.org/record/5779298