Ooencyrtus seronis Hayat, sp. nov.
Creators: name: Hayat, Mohammad
name: Ahmad, Zubair
name: Khan, Farmanur Rehman
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Ooencyrtus
Ooencyrtus seronis

description: Ooencyrtus seronis Hayat, sp. nov.
(Figs 116–121)
Female. Holotype. Length, 0.88 mm (Paratype, length, 1.0 mm). Head dark brown. Antenna with radicle dark brown; scape yellow, becoming brown in about distal two-fifths; pedicel and flagellum brown. Mesosoma dark brown. Wings hyaline; fore wing veins yellow brown, but marginal vein brown. Legs with all coxae dark brown; fore and mid femora, except white apices, dark brown; fore tibia white with upper surface light brownish yellow; fore tarsus pale brown; mid tibia white, with a pale brown sub-basal band; mid tarsus pale yellow, fifth segment brown; hind femur light brown, white apically; hind tibia pale yellow; hind tarsus with segments 1–3 yellow, distal two segments brown. Gaster up to cercal plates pale yellow, distal to cercal plates dark brown.
Head. Occipital margin narrowly rounded; head dorsum 2× as broad as long; frontovertex width 0.28× head width; ocellar triangle with apical angle very slightly acute; posterior ocellus about half ocellus diameter to margin of eye; POL 2× OCL; head, in frontal view (Fig. 118), slightly broader than high; scrobes inverted U-shaped with margins rounded; antennal torulus situated below level of lower margin of eye, and removed from mouth margin by a distance equal to torulus height; eye height 1.46× malar space; frontovertex with raised, polygonal reticulate sculpture; malar space with elongate reticulate sculpture; setae on head silvery white; eye with fine, sparse setae, each shorter than a facet. Mandible with two teeth and a broad minutely denticulate truncation (Fig. 119). Antenna (Figs 116; paratype, 117) with scape at least about 7× as long as broad, and 1.28× as long as clava; pedicel shorter than F1 and F2 combined; F1 slightly shorter (about 0.94×) than F2; funicle segments all longer than broad–1.6× (F1, F2, F3, F5), 1.58× (F4), and 1.52× (F6) as long as broad; clava about 3.6× as long as broad, and as long as preceding 3 funicle segments combined; funicle segments all with longitudinal sensilla. Relative measurements— head dorsal width, 32; head dorsal length, 15; frontovertex width, 9; head frontal height, 30; eye height, 19; malar space, 13.
Mesosoma (Fig. 120) subequal in length to metasoma; mesoscutum with raised, elongate reticulate to lineolate reticulate sculpture; axilla with polygonal, transversely elongate cells; scutellum with raised, polygonal reticulate sculpture, the cells elongated on sides; sides and apex narrowly smooth; sculpture on scutellum slightly deeper than on mesoscutum; setae largely white; scutellum with 3 + 2 (paratype, 4 + 3) setae; sides of propodeum distal to spiracles with 2–3 long, silvery white setae. Fore wing (Fig. 121) 2.44× as long as broad; costal cell with a line of setae in distal third of dorsal surface, and two lines of setae on ventral surface which become one line in distal third; marginal vein punctiform, and about 3× as long as postmarginal vein; linea calva posteriorly closed by two lines of setae, and basal triangle largely bare. Relative measurements —mesosoma length, 31; mesoscutum length (width), 15 (25); scutellum length (width), 13 (15.5). (Holotype, slide)—mid tibia length, 37; mid basitarsus length, 13; mid tibial spur length, 11. (Paratype, slide: mid tibia length, 44).
Metasoma (Fig. 120). Ovipositor, as seen through the derm, originates from TII of gaster. Relative measurements (holotype, slide)—TVII length, 25; ovipositor length, 33; third valvula length, 5.75; ovipositor stylets length, 31. (Paratype, slide)—ovipositor length, 34.5; third valvula length, 6; ovipositor stylets length, 32.5).
Male. Unknown.
Material examined. Holotype (ZDAMU, registration No. HYM. CH.692), ♀ (on slide under 4 coverslips, slide No. EH.1484), labelled “ KSA: ASIR: Abha, Raidah, vi.2011, (MT), Coll. Z. Ahmad”.
Paratype. 1 ♀ (on slide, EH.1485), with same data as holotype (NPC, registration No. 13/6/157/11).
Distribution. Saudi Arabia: Asir.
Etymology. The species name is derived from an arbitrary combination of letters, and may be taken as a noun in apposition.
Comments. The new species belongs to a small group of species of Ooencyrtus Ashmead characterized by having all coxae and largely the femora dark brown; all funicle segments longer than broad; clava about as long as preceding 3 funicle segments combined; mandible with one or two teeth and a broad truncation; and gaster basally (at least TI) yellow and distally dark brown. To this group belong the following species: O. telenomicida (Vassiliev) (see Huang & Noyes 1994), O. nigerrimus Ferrière & Voegele (1961), O. fecundus Ferrière & Voegele (1961), and O. exallus Prinsloo (1987). The new species is very similar to O. exallus in having similar sculpture of the mesoscutum and the scutellum, and body and leg colour, but differs as follows: antennal torulus with upper margin well below level of lower margin of eye; F1 0.94× F2 length; F1 with longitudinal sensilla present; fore wing with the linea calva closed posteriorly by two lines of setae; ovipositor stylets distinctly shorter than mid tibia (0.83× in holotype, 0.73× in paratype), and extending from basal fifth to basal third (in paratype) of gaster; ovipositor stylets at most 5.4× as long as third valvula. In O. exallus: antennal torulus with upper margin in line with lower margin of eye; F1 distinctly shorter (about, 0.75×) than F2; F1 without longitudinal sensilla; fore wing with the linea calva open posteriorly; ovipositor stylets subequal in length to mid tibia, and extending from onehalf the length of gaster; ovipositor stylets about 6× as long as third valvula. [It may be noted that Prinsloo measures the first and second valvulae for ovipositor, which Hayat calls ‘ovipositor stylets’; whereas, Hayat measures the combined lengths of the second valvifer and third valvula for ovipositor.]
description: Published as part of Hayat, Mohammad, Ahmad, Zubair & Khan, Farmanur Rehman, 2014, Encyrtidae (Hymenoptera: Chalcidoidea) from the Kingdom of Saudi Arabia, pp. 1-59 in Zootaxa 3793 (1) on pages 47-49, DOI: 10.11646/zootaxa.3793.1.1, http://zenodo.org/record/285931