Hebynthus callirhoe, 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 : 704-706

Hebynthus callirhoe sp.nov.

(Figs 1948-1954; Hab. E 290)

DIAGNOSIS. Female (length about 1.6-2.0mm): antenna (Fig. 1952) with scape orange-brown, dorsal margin dark brown; flagellum dark brown; coxae dark brown, legs otherwise pale orange; fore wing (Fig. 1954) virtually hyaline, but generally infused very pale brown; head (Fig. 1948) about 5X as wide as frontovertex; malar sulcus present; antenna (Fig. 1952) with scape about 7X as long as broad; pedicel about as long as F1-F2 combined; all funicle segments longer than broad; linear sensilla on all funicle segments; sensory part of clava extending about 0.6X along ventral surface; fore wing (Fig. 1954) about 2.4X as long as broad; ventral surface of costal cell with two complete lines of setae; mid tibial spur about as long as basitarsus; ovipositor slightly exserted with exserted part about 0.3X as long as mid tibial spur; gonostylus about as long as mid tibial spur. Male: unknown.

Female (holotype): length, including ovipositor, 1.98mm; excluding ovipositor, 0.89mm (CPD).

Head mainly black; occipital margin dark metallic green, ocellar area dark metallic blue with purple reflections, piliferous punctures metallic purple; anterior part of frontovertex, scrobal area, temple and gena with a strong purple sheen, some small blue areas on frontovertex and temple partially brassy and coppery; inner orbits narrowly marked metallic blue, especially below; top of scrobes narrowly metallic blue; lower part of inner antennal prominence marked blue between toruli, mouth margin and area around torulus partially marked blue and coppery; frontovertex, gena and interantennal prominence with fairly inconspicuous dark brown setae; antenna (Fig. 1952) with radicle dark brown; scape orange-brown, dorsal margin and apex dark brown; pedicel and flagellum dark brown; maxillary palpus white, terminal segment orange; pronotum black with a mixed purple and green sheen, coppery and brassy on side; propleuron and prosternum dark brown; mesoscutum in some lights with an overall, dark green sheen, but this changing to a mixture of dark blue and purple in other lights, posterior margin dark brown with a slight coppery purple sheen; tegula dark brown with a slight brassy and purple sheen; axilla with a dark blue and purple sheen; scutellum dark metallic green with some weak coppery reflections, vertical apex and side very shiny metallic green and coppery; dorsum of thorax clothed with dark brown setae; metanotum dark brown with a weak brassy and purple sheen; mesopleuron dark brown with a fairly strong purple sheen with some blue, violet, coppery and brassy reflections; mesosternum dark brown; fore coxa dark brown; fore femur, tibia and tarsus orange, apical tarsomere dark brown; mid coxa dark brown; mid leg mainly orange, but tibia with short dark brown streak externally; hind coxa orange, ventrally mixed brown; hind leg otherwise orange, but apical tarsomere brown; fore wing (Fig. 1954) virtually hyaline, but weakly generally infused very pale brown, hind wing hyaline, venation orange; propodeum dark brown with a weak brassy sheen, side metallic green with about 25 conspicuous pale setae outside spiracle extending from anterior margin virtually to posterior margin; gaster dark brown, with a fairly strong purple and coppery sheen dorsally weakly mixed brassy, side of gaster with distinct metallic green, blue, brassy, purple and coppery reflections, venter slightly duller with mixed green, purple and blue, outer plates of ovipositor relatively dull coppery, purple and blue; gonostylus dark brown, extreme apex pale orange.

Head (Fig. 1948) submenisciform, about 4.6X as wide as frontovertex, in profile about 2.3X as high as deep, anteriorly fairly evenly curved from occipital margin to mouth margin, weakly angled at top of scrobes, interantennal prominence hardly protuberant; occipital margin sharp, carinate; ocelli forming an angle of about 50°; frontovertex shiny, with fairly regular, moderately deep, fine, polygonally reticulate sculpture of mesh size generally much smaller than eye facet; frontovertex with piliferous punctures very distinct, 2 pairs of setae in front of anterior ocellus, a line of sparse setae along inner eye margin continued along lower eye margin; temple and gena about as shiny than frontovertex, with conspicuous, coarse, longitudinally elongate, strigose to striate-reticulate sculpture; eye slightly overreaching occipital margin, virtually naked, but with extremely short, inconspicuous setae that are each much shorter than diameter of facet, eye separated from scrobe by about 2X diameter of ocellus, area between eye and scrobe with coarse, relatively deep, transversely elongate, polygonally reticulate sculpture; scrobes shallow, narrowly ∩-shaped, more or less meeting, almost smooth, with shallow sculpture, weakly margined dorsally and laterally; interantennal prominence weak, dorsally rounded, but with a pair of very shallow, submedian ridges either side of a shallow depression that virtually connect it to the frontovertex, sculpture on interantennal prominence similar to frontovertex; antenna as in Fig. 1952; scape subcylindrical, about 7.2X as long as broad; all funicle segments clearly longer than broad, segments larger and broader distad; clava clearly broadened, about as long as F3-F6 combined, sutures strongly oblique, sensory area enlarged, extending ventrally about 0.6X length of clava, apex strongly obliquely truncate; malar sulcus present, but very inconspicuous; clypeal margin weakly emarginate medially; mandible with two acute teeth and a rounded upper tooth. Relative measurements: HW 104, HH 101, FV 22.5, POL 10, OOL 1, OCL 4.5, AOL 12, EL 75.5, EW 52, MS 34, SL 57.5, SW 8.

Thorax (Fig. 1951) in dorsal view with pronotum short, mostly hidden by head; pronotum dorsally with imbricate-reticulate to polygonally reticulate sculpture that is slightly shallower than sculpture on frontovertex, and of larger mesh; mesoscutum with polygonally reticulate sculpture that is of similar mesh size, but slightly deeper than that on pronotum; axilla with polygonally reticulate sculpture that is similar to that on frontovertex but slightly deeper; dorsal part of scutellum with sculpture similar to that on axilla, but conspicuously deeper and coarser and more regularly polygonal medially to slightly more elongate laterally, vertical apex and side completely smooth and shiny; visible part of mesoscutum about 2X as broad as long; scutellum about as broad as long; fore wing with venation and distribution of setae as in Figs 1950, 1954, ventral surface of costal cell with two complete lines of setae; mid tibial spur about as long as basitarsus; propodeum (Fig. 1951) medially about 0.18X as long as scutellum and with several longitudinal carinae and irregular sculpture medially. Relative measurements: FWL 112, FWW 46; HWL 81, HWW 21.

Gaster with hypopygium reaching about 0.7X to apex; syntergum about 0.75X as long as mid tibia, with apex acute; ovipositor slightly exserted, the exserted part about 0.3X as long as mid tibial spur or about 0.14X mid tibia; gonostylus about as long as mid tibial spur.

Paratype. Funicle with linear sensilla present on all segments; hypopygium Fig. 1953; ovipositor Fig. 1949. Relative measurements: OL 111.5, GL 38.5 [MT 93.5].

Variation. Females vary in length from 1.60-1.90mm, the scape may be largely dusky orange with dorsal margin broadly brown, the mesoscutum may be uniformly dark metallic green mixed with a fairly strong purple sheen or uniformly blue-green with hardly a purple lustre, all coxae may be brown with apex orange, the head varies from 4.6-5.4X as wide as the frontovertex and the scape varies from about 6.9-7.2X as long as wide.

Male. Unknown.

DISTRIBUTION. Costa Rica.

HOSTS. Unknown.

MATERIAL EXAMINED.

Type material. Holotype E: COSTA RICA, Cartago, Madreselva, Los Lagos , LN 184450 550050, 2600m, 7.xi-5.xii.1994 (M.M. Chavarria) . Paratypes: COSTA RICA, 1E, San José, Cerro Muerte , 16km E Empalme, 2600m, iii-iv.1989 (P. Hanson); 1E , Puntarenas, Est. Altamira, Send. a Casa Coca, LS 332800 574250, 1900m, #65156, 12.ix-12.x.2001 ( D. Rubí ) . Holotype in MZUCR, paratypes in NHMUK .