Coccidencyrtus thuryus, 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 : 121-123

Coccidencyrtus thuryus sp.nov.

( Figs 281-286; Hab. E 47)

DIAGNOSIS. Female (overall length about 0.6-0.9mm): scape largely dark brown; pedicel and funicle yellow, clava pale brown; all coxae white or very pale yellow, hind coxa may be partially brown; fore femur and tibia very pale yellow; mid and hind femora pale yellow with a dark brown subapical band; mid tibia pale yellow with a dark brown subbasal band; hind tibia pale yellow with a weak subbasal brown band; gaster dorsally dark brown, medially and ventrally pale orange; frontovertex about half head width; antenna ( Fig. 282) with scape about 3-3.5X as long as broad, funicle with F1 narrower than pedicel, funicle with F1-F3 subquadrate, F4-6 larger and slightly longer than broad; linear sensilla present on F2, and F4-F6; clava very nearly as long as funicle, about 4X as long as broad; palp formula 3-2; scutellum ( Fig. 286) with 3 pairs of setae and longitudinally elongate polygonally reticulate to striate-reticulate sculpture, deeper than that on mesoscutum; mid basitarsus with 5-6 ventral pegs; mid tibial spur about as long as basitarsus; fore wing with stigmal vein slightly longer than postmarginal vein and about as long as marginal vein( Fig. 283); hypopygium reaching about 0.6X towards apex of gaster; ovipositor, about 3.5-4X as long as gonostylus and slightly exserted with exserted part a little shorter than mid tibial spur. Male: unknown.

Female (holotype): length, including ovipositor, 0.73mm; excluding ovipositor, 0.68mm ( CPD) .

Head dark brown to black with a weak to moderate metallic lustre; occiput with a weak brassy sheen; frontovertex generally metallic dark green mixed coppery, area between posterior ocelli and occipital margin coppery; area above scrobes coppery; scrobal area, temple and gena with a weak brassy and coppery purple sheen; frontovertex with a few, inconspicuous, scattered, brown setae; gena and interantennal prominence with a few scattered, very inconspicuous, brown setae; maxillary palpus white; radicle dark brown; scape dark brown with extreme apex yellow; pedicel and funicle yellow; clava pale brown; thorax dark brown to black with a metallic lustre; pronotum with a weak coppery purple and brassy sheen; mesoscutum relatively bright metallic dark green mixed coppery near margins and in anterior half; tegula dark purple-brown with a weak brassy sheen; axilla with a weak coppery purple and brassy sheen; scutellum dorsally virtually matt, but with a very weak coppery purple sheen, extreme side and apex weakly shining and slightly brassy; mesopleuron with a moderate purple sheen; all coxae very pale yellow; fore femur and tibia very pale yellow, tarsus slightly dusky, pale orange; mid femur very pale yellow in proximal 0.5X, a broad, dark brown subapical band, extreme apex white, tibia white to very pale yellow with a narrow, subbasal dark, brown band, spur and tarsus very pale orange; hind femur with proximal 0.6X very pale yellow, extreme apex white and a pale brown, slightly diagonal, subapical band, tibia pale yellow with a diffuse, narrow, pale brown, subbasal band, tarsus slightly dusky, pale orange; wings mainly hyaline, but fore wing with a small, pale fuscous patch below the marginal and stigmal veins ( Fig. 283); propodeum dark brown with a weak purple sheen; gaster dorsally dark purple-brown on side, medially pale orange, median area a little dusky posteriorly, side and venter pale orange; gonostylus pale brown.

Head ( Fig. 281) about 2.3X as wide as frontovertex, in profile about 1.5X as high as deep, tangent to frontovertex forming an angle of about 100° with that of face; occipital margin more or less sharp, not carinate; no distinct oval depression adjacent to eye near occipital margin; ocelli forming an angle of about 85°; frontovertex clearly widening in front of anterior ocellus, with distinct polygonally reticulate sculpture of mesh size subequal to, or conspicuously larger than, eye facet, not shallower above top of scrobes; temple and gena with relatively shallow, longitudinally elongate, fine polygonally reticulate sculpture; top of scrobes with distinct, regular, polygonally reticulate sculpture; interantennal prominence and mouth margin with slightly shallower, polygonally reticulate sculpture; scrobes shallow, indistinctly margined, broadly ∩-shaped; interantennal prominence dorsally narrowly rounded; antenna as in Fig. 282; scape very slightly broadened and flattened, about 3.1X as long as broad; funicle with F1-F3 relatively small, subquadrate and subequal, F4-F5 slightly larger, subequal and a little longer than broad, F6 larger and clearly longer than broad; clava moderately slender, about 4X as long as broad, about 1.5X as wide as F6, not downcurved ventrally, very nearly as long as funicle, sutures parallel, sensory area relatively small, at apex only giving it a rounded or weak obliquely truncate appearance; eye slightly overreaching occipital margin, clothed with dense, conspicuous setae, each a little longer than diameter of facet; malar sulcus present, but very shallow and indistinct; clypeal margin evenly very slightly concave. Relative measurements: HW 43.5, HH 32, FV 19, POL 7.5, OOL 2.5, OCL 2, AOL 5.5, EL 25, EW 21, MS 12, SL 17, SW 5.5.

Thorax ( Fig. 286) with pronotum hardly exposed behind head, its posterior margin broadly concave, not angular medially; pronotum and mesoscutum with polygonally reticulate sculpture that is about as deep as that in ocellar area, and of similar mesh; axilla with similar sculpture to mesoscutum but clearly shallower; scutellum dorsally with very fine, slightly longitudinally elongate, polygonally reticulate sculpture that is a little deeper than sculpture on mesoscutum, extreme side and apex completely smooth and shiny; visible part of mesoscutum about 1.9X as broad as long; scutellum about 1.2X as broad as long, apex with a pair of slender, elongate setae; hind femur about 3.3X as long as broad; mid basitarsus with 5 ventral pegs; mid tibial spur about as long as basitarsus; fore wing with venation and setation as in Figs 283, 285; propodeum ( Fig. 286) medially about 0.05X as long as scutellum. Relative measurements: FWL 43, FWW 17.5; HWL 28, HWW 5.5.

Gaster with hypopygium reaching about 0.6X to apex; last tergite about 0.65X as long as mid tibia, with apex rounded; ovipositor exserted, the exserted part about 0.6X as long as mid tibial spur or about 0.2X mid tibia.

Paratype. Mandible with two acute teeth and an obtuse upper tooth; palp formula 3-2; funicle with linear sensilla present on F2, F4-F6. Relative measurements: OL 99, GL 27 [MT 91].

Variation. Females vary in overall length from 0.58-0.85mm, the terminal segments of the gaster may be completely brown dorsally, specimens from higher altitudes have the hind coxa partially brown externally, the fore wing varies between 2.28-2.46X ( Figs. 284, 285) as long as broad and the ovipositor varies from about 3.5-4X as long as the gonostylus.

Male. Unknown.

DISTRIBUTION. Costa Rica.

HOSTS. Unknown.

MATERIAL EXAMINED.

Type material. Holotype E: COSTA RICA, Puntarenas, San Vito, Las Cruces, Wilson Bot. Gdns, 8°46’N 82°57’W, 7-19.ii.2007 (C. Hansson). Paratypes: COSTA RICA, 2E, Guanacaste, PN Santa Rosa, Bosque Humedo , 10°51’N 85°37’W. 300m, 20.ii.2007 (J.S. Noyes); 1E, Guanacaste, Cacao (ACG), 1100 m, MT/YPT, 26.i-24.ii.1996 (J.S. Noyes); 1E, Puntarenas, RB Carara, 9°46’N 84°57’W, 40m, 1-7.iii.2005 ((C. Hansson); 1E, Puntarenas, Buenos Aires, Est. Altamira, Send. los Gigantes, LS 572200 331700, #57880, vii-viii.2000 ( D. Rubí ); 1E, Puntarenas, Est. Altamira, Send. los Gigantes, LS 331800 572100, 1460m, ii.2002 (C. Hansson, D. Rubí ); 2E, Puntarenas, San Vito. Las Cruces, Wilson Bot. Gdns, 1500m, 18-22. iii.1990 (J.S. Noyes); 2E, same data as holotype; 1E, Puntarenas, San Vito, Las Cruces, Wilson Bot. Gdns, 8°46’N 82°57’W, 1200-1350m, 19.ii.2015 (J.S. Noyes); 11E, Puntarenas, San Vito, Est. Las Alturas, 8°57’N 82°50’W, 1500m, 20.ii.2015 (J.S. Noyes); 1E, Puntarenas, Pen. Osa , 23km N. Puerto Jiménez, 10m, xi-xii.1992 (P. Hanson). 1E, Puntarenas, Golfito, Est. Agujas, LS 526550 276750, 300m, #57901, 21.ii.2000 (J. Azofeifa); 1E, Puntarenas, PN Corcovado, Los Patos, 8°33’N 83°30’W, 200m, ii.2000 (J.S. Noyes, J. Azofeifa); 5E, Limón, PN Cahuita, 5m, 1.iii.1991 (J.S. Noyes). Holotype in MZUCR, paratypes in MZUCR and NHMUK.

COMMENTS. See comments under aries (p. 91) and harpales (p. 120).