Cheiloneurus rosea, 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 : 253-255

Cheiloneurus rosea sp.nov.

( Figs 631-633; Hab. E 97)

DIAGNOSIS. Female (length about 1.3-2.1mm): body generally dark brown to black with a metallic; antenna ( Fig. 631) with scape dark brown with apex pale orange; pedicel brown proximally, pale orange apically; funicle orange to orange-brown, clava dark brown; mesoscutum with pale setae; fore and hind coxae white, mid coxa dark brown; hind tibia dark brown, legs otherwise white to pale orange mixed dark brown; fore wing ( Fig. 633) hyaline; head about 4X as wide as frontovertex, in facial view about as broad as long and subcircular, gena weakly and fairly evenly curved; frontovertex without setae medially below anterior ocellus; area between eye and scrobe slightly wider than anterior ocellus, with shallow sculpture, scrobal margin dorsally and laterally rounded; interantennal prominence dorsally rounded with only a few inconspicuous setae; mandible with two long, acute, lower teeth and a very short upper tooth; antenna ( Fig. 631) with scape about 3.6X as long as broad; funicle segments mostly transverse; flagellum about as long as head width; linear sensilla on F4-F6; clava 3-segmented, about as long F2-F6 combined, sensory area extending about 0.4X along ventral surface; mesoscutum mainly with polygonally reticulate sculpture; scutellum with distinct apical tuft of setae; wings fully developed; fore wing ( Fig. 633) about 2.5X as long as broad; parastigma not curved downwards; costal cell dorsally with one or two setae at apex and a single complete line of setae ventrally; area below proximal part of parastigma with a group of about 10 pale setae; apices of postmarginal and stigmal veins ( Fig. 632) not connected by a naked hyaline area; apical bristle of postmarginal vein not more than one-third as long as marginal vein; mid tibial spur slightly longer than basitarsus; propodeum with about 15 setae around each spiracle, side naked; syntergum about 1.1X as long as mid tibia; ovipositor about 3.3X gonostylus or 1.6X mid tibia; gonostylus about 1.3X mid tibial spur; exserted part of ovipositor 0.2X mid tibial spur. Male: unknown.

Female (holotype): length, including ovipositor, 2.01mm; excluding ovipositor, 2.03mm (CPD).

Head black with a dull metallic green sheen on frontovertex, scrobal area with a distinct, deep, purple sheen, top of scrobes mixed dark, metallic blue; frontovertex with some coppery reflections, especially along eye margins and clothed with inconspicuous dark brown setae; mouth margin metallic green mixed coppery and purple; temple and posterior part of gena below eye bright metallic green and brassy mixed with some coppery; remainder of malar space coppery purple; antenna ( Fig. 631) with radicle dark brown, mixed pale orange-brown; scape dark brown in basal half or so with apical one-third pale orange; pedicel brown in proximal half, pale orange apically; funicle with F1-F4 pale orange-brown, F5-F6 pale orange; clava dark brown; thorax mostly dark brown to black; pronotum with a dull coppery-purple sheen; mesoscutum clothed with fairly conspicuous, evenly distributed, pale, translucent setae and metallic blue-green with some brassy reflections, especially posteriorly, posterior margin coppery purple; tegula dark brown; scutellum clothed with dark brown setae, mostly matt, posteriorly with a coppery purple sheen, sides and apex shining metallic green with some coppery reflections; metanotum with a slight purple sheen; mesopleuron largely dark purple with some blue reflections anteriorly; fore coxa and femur white, femur with a broad subapical brown band; fore tibia pale orange with a diffuse brown subbasal band; mid coxa dark brown, apically very pale yellow or white; mid femur white with a broad subapical dark brown band in apical one-third; mid tibia pale orange with a broad, brown subbasal band in proximal one-third; hind coxa white; hind femur white with apical half dark brown; hind tibia dark brown, narrowly dusky pale yellow proximally, apical one-third pale orange; all tarsi pale orange; pretarsi brownish; fore wing ( Fig. 633) completely hyaline, venation pale brown; propodeum dark purple-brown; sides metallic green with conspicuous silvery setae in spiracular area; gaster dark purple-brown, Gt1 distinctly metallic green; remainder of gaster mixed brassy, sides of apical tergites metallic green; outer plates of ovipositor blue-green; gonostylus dark brown.

Head about 4X as wide as frontovertex, with occipital margin sharp and without a median groove to foramen; ocelli forming an angle of about 60°; frontovertex slightly shiny, with conspicuous reticulate sculpture of mesh size about equal to diameter of eye facet; scrobes, interantennal prominence and mouth margin with shallow sculpture, almost smooth; temple and posterior gena completely smooth adjacent to eye margin but posteriorly with shallow, irregular sculpture; scrobes moderately deep, meeting dorsally, dorsal and lateral margins weakly rounded; antenna as in Fig. 631; scape slightly broadened and flattened, about 3.6X as long as broad; funicle with F1 subquadrate, all other segments transverse and broadening distad; clava about as long as F2-F6, both sutures slightly oblique, sensory area forming an oblique truncation that extends a little less than 0.3X along clava; eye virtually reaching occipital margin, separated by much less than diameter of facet and clothed in fairly conspicuous setae that are each about as long as diameter of facet; malar sulcus absent; mandible with 2 long, acute lower teeth and a very short upper tooth. Relative measurements: HW 80, HH 79, FV 20, OD 6.5, POL 10, OOL 1, OCL 7, AOL 12, EL 51, EW 41, MS 34, SL 43, SW 12.

Thorax with shallow, irregular, polygonally reticulate sculpture on pronotum, of mesh size subequal to diameter of facet; sculpture on mesoscutum largely similar but anteriorly and on sides more obliquely elongate; sculpture on axilla coarser and reticulate; scutellum mostly with coarse, longitudinally elongate, reticulate sculpture almost forming whorls, extreme apex and sides completely smooth; visible part of mesoscutum about 1.5X as broad as long; scutellum about as long as broad, subapical tuft distinct, setae about one-third as long as scutellum; hind femur about 3.9X as long as broad; fore wing with venation and setation as in Figs 632, 633; costal cell with 3 or 4 setae dorsally at apex; no naked streak present between apices of postmarginal and stigmal veins ( Fig. 632); propodeum with numerous setae in spiracular area, side naked, medially about 0.1X as long as scutellum and medially with a small area of fine, shallow, polygonally reticulate sculpture. Relative measurements: FWL 96, FWW 38; HWL 70, HWW 20.

Gaster with hypopygium reaching about half-way to apex; ovipositor hardly exserted, the exserted part about one-fifth as long as mid tibial spur; syntergum very slightly longer than mid tibia.

Paratype. Funicle with linear sensilla present only on F4-6; gaster without “gland-like” structures on Gt1 or Gt5; gonostylus about 1.3X as long as mid tibial spur. Relative measurements: OL 88, GL 27 [MT 55].

Variation. Females vary in overall length from 1.32-2.10mm, otherwise very little in material available except that the ovipositor may be completely hidden.

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. Rubi, J. Azofeifa ) . Paratypes: COSTA RICA, 1E, Guanacaste, Guanacaste NP, below Pitilla, 6.iii.1990 (J.S. Noyes); 1E, Guanacaste, Cacao (ACG), 1100 m, MT/YPT, 26.i-24.ii.1996 (J.S. Noyes); 1E, Guanacaste, Valle Miravalles, Est. Cabro Muco , LN 299769 411243, 100m, #74102, 4.vii.2003 (J.D. Gutierrez); 1E, Guanacaste, Nandayure , Cerro Azul , LN 214769 397000, 1050m, #72539, 20.x.2002 - 15.i.2003 (W. Porras); 1E , Alajuela, Peñas Blancas, viii.1987 (E. Cruz); 1E, San José, Zurqui de Moravia , 1600m, i.1995 (P. Hanson); 1E , Cartago, PN Tapanti-Macizo de la Muerte, Torre ICE #31, LN 556800 188500, 1800m, #61075, 18.ix-19.x.2000 ( D. Rubi ); 7E , Puntarenas, same data as holotype; 3E, Puntarenas, Est. Altamira, Send. los Gigantes, LS 331800 572100, 1460m, ii.2002 (C. Hansson, D. Rubi ); 1E, Puntarenas, San Vito, Las Cruces, Wilson Bot. Gdns, 1500m, 18-22.iii.1990 (J.S. Noyes); 1E, Puntarenas, PN Corcovado, Est. Agujas, LS 526550 276750, 300m, 11.ii.2002 (J. Azofeifa) . Holotype in MZUCR, paratypes in MZUCR, NHMUK, USNM, CNC, MLP .

COMMENTS. See comments under varablus (p. 251), miklo (p. 247), loresa (p. 259) and salome (p. 257).