Paranaphoidea Girault 1913
Author
Huber, John T.
Author
Read, Jennifer D.
Author
Triapitsyn, Serguei V.
text
Zootaxa
2007
2007-09-28
1596
1
111
http://dx.doi.org/10.5281/zenodo.5503353
journal article
10.11646/zootaxa.1596.1.1
11755334
5779298
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.