Ammonoencyrtus keira, Noyes, 2023

Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 526-527

Ammonoencyrtus keira sp.nov.

(Figs 1323-1328)

DIAGNOSIS. Female (length about 1.1mm): area above mouth margin dark brown; mesoscutum dark orange-brown with a moderate metallic sheen, contrasting with orange scutellum; fore and hind coxa dusky orange, mid coxa orange; legs mostly orange; hind basitarsus dark brown; head about 4X as wide as frontovertex; antenna (Fig. 1323) with dorsal margin of pedicel not produced in lateral view; sensory part of clava shorter than straight part of ventral margin; frontovertex with about 10 setae above transfacial carina, excluding those along eye margin; scutellum (Fig. 1325) mostly with uniform conspicuous, polygonally reticulate sculpture that is clearly deeper than shallower imbricate-reticulate sculpture of mesoscutum, only extreme side and apex smooth and shiny; exserted part of ovipositor not longer than mid tibial spur. Male: Unknown.

Female (holotype): length, including ovipositor, 1.08mm; excluding ovipositor, 1.02mm ( CPD) .

Head generally slightly dusky pale orange with a very weak green, purple and brassy sheen; area above transfacial carina with a similar purple and violet sheen, this continuing more strongly laterally mixed with metallic blue between eye, and scrobal margin onto upper gena; temple with a moderate purple sheen; a curved, dark brown band between toruli and mouth margin; setae on frontovertex, temple, gena and interantennal prominence dark brown; antenna (Fig. 1323) with radicle orange-brown, apex dark brown; scape dusky orange, broadly bordered dark brown ventrally and apically and with dorsal margin dark brown with a slight purple and brassy sheen, remainder of antenna dark brown with a purple and brassy sheen; thorax with pronotum orange, neck marked dark brown; propleuron and prosternum orange-brown; mesoscutum dark orange-brown with a distinct green and blue-green lustre, mixed dark blue posteriorly and purple along posterior margin; tegula orange-brown with a weak brassy and purple sheen; axilla dusky orange with a weak purple and brassy sheen; scutellum orange with a weak brassy and coppery sheen, side and extreme apex with a purple and blue sheen; mesopleuron orange-brown with a mixed brassy, coppery, purple and blue sheen; fore coxa slightly dusky pale orange; fore femur proximally pale orange, slightly dusky orange towards apex, tibia dusky orange proximally, pale orange apically, tarsus orange with terminal segment dark brown; mid coxa orange; mid leg generally coloured as fore leg; hind coxa orange-brown; hind femur slightly dusky orange, tibia mostly dusky orange, but with apical one-quarter pale orange, basitarsus and apical tarsomere dark brown, remaining tarsomeres pale orange; fore wing (Fig. 1327) mostly infuscate but hyaline towards base and at apex, venation dusky orange, marginal vein dark brown, apices of postmarginal and stigmal veins connected by a fairly straight hyaline streak (Fig. 1326); hind wing hyaline; propodeum dusky orange with a weak brassy lustre, side with a relatively strong coppery purple and green lustre, setae outside spiracle dark brown and moderately conspicuous; gaster dark brown with a mixed purple, coppery and brassy sheen, with some metallic green and blue reflections on side and ventrally; gonostylus brown.

Head about 4.3X as wide as frontovertex, in profile about 1.5X as long as deep, frontovertex evenly convex from occiput to top of scrobes then virtually straight to mouth margin with interantennal prominence only slightly protuberant; vertex with an indistinct, elongate, oval, shiny bottomed depression adjacent to eye margin between posterior ocellus and occipital margin; ocelli forming an angle of about 80°; frontovertex about 2.7X as long as broad, clearly narrowing anteriorly, narrowest slightly above transfacial carina, slightly shiny with shallow, fine, polygonally-reticulate sculpture of cell diameter a little less than diameter of eye facet, completely smooth above transfacial carina; temple and gena with longitudinally elongate, imbricate-reticulate sculpture, slightly shallower than sculpture on frontovertex; eye reaching occipital margin, naked; occipital margin sharp, weakly carinate; narrowest point between eye and transfacial carina about 3X diameter of facet; narrowest point of the connection of the interantennal prominence to the frontovertex not carinate, about 0.5X as wide as diameter of anterior ocellus; area immediately above transfacial carina with about 9 setae; antenna as in Fig. 1323; scape subtrapezoidal with proximal part of dorsal margin 0.6X length of distal part and with the proximal part of the ventral margin about 1.3X as long as the distal part; distal part of dorsal margin of scape and dorsal margin of pedicel flat and completely smooth and shiny; pedicel not produced dorsally, about half as wide as F1, setae uniform; F1 about 1.6X as long as F2 and subequal in width, remaining segments progressively slightly narrower; linear sensilla present on F4-F6 or absent from F4; clava about 0.8X as wide as F1 and dorsally about as long as funicle, sutures oblique, apex strongly obliquely truncate, sensory area about 0.8X as long as ventral margin; mandible with two teeth and a weak truncation. Relative measurements: HW 52, HH 44.5, FVL 32; FV 12, POL 6.5, OOL 0, OCL 4, AOL 6, EL 29, EW 24.5, MS 24.5, SL (dorsal margin), 28, SL (lamina) 30.5, SW 21.

Thorax (Fig. 1325) with polygonally reticulate to imbricate-reticulate sculpture on pronotum and mesoscutum that is of slightly larger mesh size and slightly shallower than sculpture on frontovertex; axilla with clearly deeper, slightly transversely elongate, polygonally reticulate sculpture; scutellum with similar sculpture to axilla, but conspicuously deeper and more rounded; visible part of mesoscutum about 1.8X as broad as long; scutellum about 1.1X as broad as long; mid tibia with a weak external carina proximally; hind femur about 3.5X as long as broad; fore wing venation and setation as in Figs 1326, 1327; area proximad of anal angle weakly hyaline; costal cell with 6 or 7 setae dorsally at apex; apices of postmarginal and stigmal veins connected by a naked, hyaline streak (Fig. 1326); propodeum (Fig. 1325) medially about 0.13X as long as scutellum, quite smooth, about 4 setae anterior to and outside spiracle. Relative measurements: FWL 53, FWW 24.5; HWL 39.5, HWW 10.

Gaster with hypopygium (Fig. 1324) reaching about 0.6X to apex, without a distinct, posterior, median projection (mucro); last tergite about 0.8X as long as mid tibia, with apex very weakly acute appearing rounded; ovipositor (Fig. 1328) slightly exserted, the exserted part about 0.7X as long as mid tibial spur or less than 0.2X length mid tibia. Relative measurements: OL 54.5, GL 14.5 [MT 41].

Variation. Only holotype examined.

Male. Unknown.

DISTRIBUTION. Costa Rica.

HOSTS. Unknown.

MATERIAL EXAMINED.

Type material. Holotype E: COSTA RICA, Puntarenas, Est. Altamira, Send. a Casa Coca, LS 331750 574400, 1700m, ii.2002 (C. Hansson, D. Rubí, J. Azofeifa ) . Holotype in NHMUK .