Ryukyuspathius
A small genus with only one species described [1].
References
- , “Rhyukyuspathius, a new peculiar genus of the tribe Spathiini (Hymenoptera: Braconidae: Doryctinae) from Japan.”, Annales Zoologici (Warsaw), vol. 58(4), pp. 761-766, 2008.
Unknown.
Head transverse, not depressed; ocellar triangle equilateral; eyes sparsely setose, without emargination opposite antennal sockets; occipital carina coarse, complete dorsally, fused with hypostomal carina; postgenal bridge very narrow; palpi formula 6-4; scape thick and short, without large apical lobe and basal constriction; first flagellar segment subcylindrical, almost straight, longer than second segment; mesosoma not depressed; neck of promesosoma short; pronotal keel absent; anterior mesonotum vertically raised above pronotum, almost entirely smooth; median lobe of mesonotum wide and with distinct anterolateral shoulders; notauli deep, wide and complete; metanotum with long thick basally and distinctly pointed apically median tooth; sternaulus distinct, more or less deep, wide, running along almost entire lower part of mesopleuron; prepectal carina coarse and complete; propodeum with marginated areas, with long, thick and apically curved inward lateral processes; propodeal bridge absent; fore tibia with several long and narrow spines arranged in single row; hind coxa with basoventral corner and small tooth; hind basitarsus ventrally with narrow keel, 0.65 times as long as segments 2-5 combined; fore wing marginal cell weakly shortened; 2RS and r-m present; 1m-cu weakly postfurcal; 1cu-a distinctly postfurcal; first discal cell long and more or less narrow, distinctly petiolate anteriorly; 1M and m-cu parallel; 2CUb arising from posterior 0.3 of apical side of first subdiscal cell; subdiscal cell closed apically; hind wing cu-a present; subbasal cell large; m-cu present, oblique; RS arising from R closely to 1r-m vein; marginal cell without r; first metasomal tergite, arched, with distinct subbasal lateral processes and small dorsope, with distinct spiracular tubercles in basal 0.35; acrosternite 0.7 times as long as tergite; second suture absent; second tergite without areas and furrows; second and third tergites without separated laterotergites; ovipositor with single dorsal node, more or less distinctly serrate ventro-apically, 0.8 time as long as metasoma (in the only known species) [1].
References
- , “Rhyukyuspathius, a new peculiar genus of the tribe Spathiini (Hymenoptera: Braconidae: Doryctinae) from Japan.”, Annales Zoologici (Warsaw), vol. 58(4), pp. 761-766, 2008.
It looks like to Spathius, but differs from it in having the metanotum with long, thick basally and distinctly pointed median tooth, the propodeum with long, thick and apically weakly curved inward lateral processes, the parallel vein (2CUb) arising from posterior 0.3 of apical side of brachial (first subdiscal) cell, the submedial (subbasal) cell of hind wing large and with first abscissa of mediocubital vein (M+CU) almost as long as second abscissa (1M), the eye with long and sparse setae, the mesoscutum mostly smooth, and the mid tibia without spines [1].
Despite its propodeal processes, it is distinguished from the Polynesian genus Fijispathius by the metanotum with a long and distinctly pointed median tooth, the parallel vein (2CUb) arising from posterior 0.3 of apical side of brachial (first subdiscal) cell, the submedial (subbasal) cell of hind wing large and with first abscissa of mediocubital vein (M+CU) almost as long as second abscissa (1M), and the eye with distinct and sparse setae [1].
It is distinguished from Spathiomorpha by the metanotum with long, thick basally and distinctly pointed median tooth, the propodeum with thick and apically weakly curved inward lateral processes, the recurrent vein (m-cu) of fore wing postfurcal, the eye with distinct and sparse setae, and the middle tibia without spines [1].
It differs from Doryctopambolus by the fore wing first subdiscal cell closed and the first metasomal segment petiolate with basal sternal plate more than 0.6 length of first tergite [2].
References
- , “Rhyukyuspathius, a new peculiar genus of the tribe Spathiini (Hymenoptera: Braconidae: Doryctinae) from Japan.”, Annales Zoologici (Warsaw), vol. 58(4), pp. 761-766, 2008.
- , “Review of the genus Stephanospathius Belokobylskij, 1992 (Hymenoptera, Braconidae), with discussion of their tribal position.”, Zookeys, vol. 118, pp. 1-17, 2011.
Oriental.