Hebynthus kapo, 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 : 685-686

Hebynthus kapo sp.nov.

(Figs 1875-1881)

DIAGNOSIS. Female (length about 1.3mm): antenna (Fig. 1877) with scape dark brown; flagellum dark brown; all coxae brown, fore coxa with some pale orange; fore and mid legs mostly pale orange, hind leg mostly dark brown; fore wing virtually hyaline but infuscate below marginal and stigmal veins (Figs 1875, 1878); head (Fig. 1880) about 3.0X as wide as frontovertex; malar sulcus present; antenna (Fig. 1877) with scape about 5.4X as long as broad; pedicel nearly as long as F1-F2 combined; funicle with segments slightly longer than broad, F6 quadrate; funicle with linear sensilla on all segments, sometimes absent from F1; sensory part of clava extending about 0.45X along ventral surface; fore wing (Fig. 1878) about 2.4X as long as broad; ventral surface of costal cell with two complete lines of setae; mid tibial spur slightly shorter than basitarsus; ovipositor slightly exserted with exserted part about 0.7X as long as mid tibial spur; gonostylus about 1.5X as long as mid tibial spur. Male: unknown.

Female (holotype): length, including ovipositor, 1.25mm; excluding ovipositor, 1.15mm ( CPD) .

Head mainly dark brown; frontovertex generally with a dull, dark green sheen, area above scrobes, scrobal area and gena with a coppery purple sheen; temple with a fairly strong brassy and coppery purple sheen; frontovertex, gena and interantennal prominence with fairly inconspicuous dark brown setae; antenna (Fig. 1877), including radicle, dark brown; maxillary palpus pale orange; pronotum black with a coppery purple sheen with some weak green and brassy reflections; propleuron and prosternum dark brown; mesoscutum with an overall, dark blue-green sheen, posterior margin dark brown with a slight purple and brassy sheen; tegula dark brown with a slight brassy and purple sheen; axilla dark brown with a slight purple and brassy sheen; scutellum dark metallic blue, a little coppery towards apex, vertical apex and side very shiny metallic green, mixed slightly brassy and coppery laterally; dorsum of thorax clothed with dark brown setae; metanotum dark brown with a weak brassy and purple sheen; mesopleuron dark brown with a moderate blue and purple sheen; mesosternum dark brown; fore coxa dark orange-brown; fore femur and tibia pale orange margined dark brown, tarsus pale orange-brown, apical tarsomere brown; mid coxa dark brown; mid femur pale orange, slightly dusky along dorsal margin, tibia pale orange with a broad, subbasal, dark brown band, spur and tarsus pale orange, apical tarsomere orange-brown; hind coxa dark brown; extreme base of tibia pale orange, remainder of hind leg dark brown; wings virtually hyaline, but fore wing (Fig. 1878) with a small infuscate area below marginal and stigmal veins (Fig. 1875), venation brown; propodeum dark purple-brown with a weak brassy sheen, a small area posterior to spiracle and side dark metallic blue, about 20 conspicuous pale setae behind and outside spiracle extending most of the way to posterior margin; gaster dark brown, with a fairly strong purple and coppery sheen dorsally weakly mixed brassy, Gt2-Gt3 with a fairly strong coppery sheen medially, side of gaster with distinct metallic green, blue, brassy, purple and coppery reflections, venter slightly duller with mixed green, purple and blue, outer plates relatively dull coppery, purple and blue; gonostylus dark brown, extreme apex pale orange.

Head (Fig. 1880) about 3X as wide as frontovertex, in profile about 1.8X 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 85°; frontovertex (Fig. 1880) slightly shiny, with fairly regular, moderately deep, fine, polygonally reticulate sculpture of mesh size generally subequal to eye facet; frontovertex with piliferous punctures shallow, 3 pairs of setae in front of anterior ocellus, a line of sparse setae along inner eye margin continued along lower eye margin; interantennal prominence with two submedian lines of conspicuous long setae; temple and gena more shiny than frontovertex, with conspicuous, coarse, longitudinally elongate, strigose to striate-reticulate sculpture; eye virtually reaching occipital margin, separated by much less than diameter of facet, with short, inconspicuous setae that are each much shorter than diameter of facet, eye separated from scrobal margin by about 1.5X diameter of ocellus, area between eye and scrobe with transversely elongate, polygonally reticulate sculpture, area below lowest part of eye almost completely smooth; scrobes shallow, narrowly V-shaped, more or less meeting, fairly smooth but with shallow, polygonally reticulate sculpture, weakly margined dorsally and laterally; interantennal prominence weak, dorsally moderately acute, sculpture on interantennal prominence similar to frontovertex; antenna as in Fig. 1877; scape subcylindrical, about 5.4X as long as broad; F1-F5 clearly longer than broad, F6 subquadrate, segments larger and broader distad, linear sensilla present on all funicle segments or absent from F1; clava slightly broadened, about 1.2X as wide as F6, slightly shorter than F3-F6 combined, sutures strongly oblique, sensory area enlarged, extending ventrally about 0.45X length of clava, apex strongly obliquely truncate; malar sulcus absent; clypeal margin weakly emarginate medially; mandible with two teeth and a narrowly truncate upper tooth. Relative measurements: HW 73, HH 70, FV 25, POL 12, OOL 1.5, OCL 3, AOL 9, EL 44, EW 32, MS 30, SL 40.5, SW 7.5.

Thorax (Fig. 1879) in dorsal view with pronotum short, mostly hidden by head; pronotum dorsally with imbricate-reticulate to polygonally reticulate sculpture that is about as deep as that on frontovertex; mesoscutum with polygonally reticulate sculpture that is of similar mesh size and about as deep as that on pronotum; axilla with polygonally reticulate sculpture that is a little finer and shallower than that on mesoscutum; dorsal part of scutellum with regular, polygonally reticulate sculpture that is conspicuously deeper and coarser than that on mesoscutum, vertical apex and side completely smooth and shiny; visible part of mesoscutum about 2.1X as broad as long; scutellum convex and hardly longer than broad; fore wing with venation and distribution of setae as in Figs 1875, 1878; costal cell with a single line of setae dorsally in apical two-fifths, ventral surface with two complete lines of setae; mid tibial spur slightly shorter than basitarsus; propodeum (Fig. 1879) medially about 0.16X as long as scutellum and with a complete median carina and several, incomplete submedian carinae from posterior margin; side of propodeum sharp, but not carinate, posterolaterally with a short, triangular tooth above hind coxa about half way to spiracle. Relative measurements: FWL 111, FWW 45; HWL 78.5, HWW 21.

Gaster with hypopygium (Fig. 1881) reaching about 0.6X to apex; syntergum about 0.6X as long as mid tibia, with apex acute; ovipositor (Fig. 1876) slightly exserted, the exserted part about 0.7X as long as mid tibial spur or about 0.2X mid tibia; gonostylus about 1.5X as long as mid tibial spur. Relative measurements: OL 98, GL 36 [MT 74.5, MTS 24.5].

Variation. Only holotype examined.

Male. Unknown.

DISTRIBUTION. Costa Rica.

HOSTS. Unknown.

MATERIAL EXAMINED.

Type material. Holotype E: COSTA RICA, Limón, PI Amistad, Valle del Silencio, Zona de Acampar , LS 341250 577200, 2400m, #66672, 4.xi.2001 - 14.i.2002 ( D. Rubí ) . Holotype in NHMUK .

COMMENTS. Hebynthus kapo is similar in some respects to cira . Both species have the head about 3X as wide as the frontovertex, the scape about 6X as long as broad, F1 noticeably smaller than F2 and the gonostylus about 1.5X as long the mid tibial spur. In addition to the characters given in the key, kapo can be separated from cira by having the area below the marginal vein infuscate, the hind leg almost completely dark brown, the head slightly longer than broad in facial view and the fore wing less than 2.5X as long as broad. In cira , the fore wing is hyaline, the hind leg is more or less completely pale orange, the head is slightly broader than long in facial view and the fore wing is more than 2.7X as long as broad.