Coccidencyrtus matias, 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 : 116-118

Coccidencyrtus matias sp.nov.

( Figs 264-268; Hab. E 44)

DIAGNOSIS. Female (length about 0.8-0.9mm): scape largely brown; pedicel largely dark brown; flagellum pale orange-brown; fore and mid coxae white, hind coxa pale orange; fore femur and tibia white to pale orange; mid femur with a brown subapical band; mid and hind tibiae white, each with a narrow, subbasal brown band; gaster largely dark brown, but Gt1 medially and most of venter pale orange, hypopygium pale orange; frontovertex slightly less than half head width; antenna ( Figs 264, 265) with scape about 3.1X as long as wide, pedicel wider than F1; funicle with first 2 or 3 segments, small and usually subequal, remaining segments conspicuously larger and increasing in size towards apex, linear sensilla on F3-F6 ( Fig. 265) or absent from F3 ( Fig. 264); antenna with clava about as long as F3-F6 combined and about 3X as long as broad; palp formula 3-2; scutellum ( Fig. 268) with 3 pairs of setae and fine, polygonally reticulate sculpture that is clearly deeper than that on mesoscutum, becoming more longitudinally elongate laterally; mid basitarsus with 4 ventral pegs; mid tibial spur slightly longer than basitarsus; fore wing with stigmal vein ( Fig. 266) slightly longer than postmarginal vein but slightly shorter than marginal vein; hypopygium reaching about 0.8X towards apex of gaster; ovipositor a little more than 3X as long as gonostylus, exserted part a little longer than mid tibial spur. Male: unknown.

Female (holotype): length, including ovipositor, 0.91mm; excluding ovipositor, 0.77mm (CPD).

Head dark brown to black with a weak to moderate metallic lustre; occiput with a weak coppery sheen; frontovertex near occipital margin with a weak coppery sheen, area around anterior ocellus relatively bright, metallic dark green, area above scrobes slightly coppery; scrobal area, temple and gena relatively dull with a slight coppery purple sheen; frontovertex, gena and interantennal prominence with a few scattered, very inconspicuous, brown setae; maxillary palpus white; radicle dark brown; scape largely brown, pale orange towards apex; pedicel dark brown dorsally, ventrally pale orange; funicle and clava pale orange-brown; thorax dark brown to black with a weak metallic lustre; pronotum and mesoscutum with a weak coppery and brassy sheen; tegula dark purple brown with a weak brassy sheen; axilla with a weak coppery purple sheen; scutellum less shiny than mesoscutum, but with a very weak coppery purple sheen, extreme side and apex more shiny and slightly brassy; mesopleuron with a moderate purplish sheen; fore coxa white; fore femur white, tibia and tarsus very pale orange; mid coxa white; mid femur white with a slightly oblique, dark brown, subapical band, tibia white proximally to very pale orange distally, with a very narrow, dark brown, subbasal band, spur and tarsus pale orange; hind coxa very pale orange; hind femur white in proximal 0.5X with a broad, subapical, brown band, extreme apex white, tibia white at base with a dark brown subbasal band to about 0.33X, apex very pale orange, tarsus pale orange; wings hyaline, fore wing with a very small, weakly infuscate area immediately below marginal vein; propodeum dark brown with a weak brassy and purple sheen; gaster dark brown dorsally with brassy, purple, blue, green and coppery reflections, Gt1 medially pale orange, venter of gaster pale orange with apex of outer plate of ovipositor dark brown; gonostylus mostly brown, but proximally and distally mixed pale orange.

Head about 2.2X 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 sharp, not carinate; no distinct oval depression adjacent to eye near occipital margin; ocelli forming an angle of about 90°; frontovertex widening in front of anterior ocellus, with moderately deep, polygonally reticulate sculpture of mesh size subequal to eye facet; temple and gena with relatively shallow, slightly longitudinally elongate, fine, polygonally reticulate sculpture; top of scrobes with shallow, regular, polygonally reticulate sculpture; interantennal prominence and mouth margin with shallow, polygonally reticulate sculpture; scrobes shallow, indistinctly margined, broadly ∩-shaped; interantennal prominence dorsally rounded; antenna as in Fig. 264; scape broadened and flattened, about 3.1X as long as broad; funicle with F1 and F2 smallest, subequal, F3-F6 conspicuously larger, gradually increasing in length and width distad so that F6 is about 2X as long and 1.5X as wide as F3; clava slender, slightly upturned at apex, about 3.8X as long as broad, about 1.2X as wide as F6, and about as long as F4-F6 combined, sutures parallel, sensory area small, at apex only giving it a pointed appearance; eye slightly overreaching occipital margin, clothed with conspicuous setae, each about as long as diameter of facet; malar sulcus present, distinct; clypeal margin evenly very slightly concave. Relative measurements: HW 47, HH 37, FV 21, POL 9, OOL 3, OCL 3, AOL 6.5, EL 25, EW 22, MS 13, SL 18.5, SW 6.

Thorax ( Fig. 268) with pronotum hardly exposed behind head, its posterior margin broadly concave, not angular medially; pronotum and mesoscutum with polygonally reticulate sculpture that is similar to that in ocellar area; axilla with transversely elongate reticulate sculpture that is shallower than that on mesoscutum; scutellum dorsally with fine, polygonally reticulate sculpture that is clearly deeper than that on mesoscutum, sculpture much more longitudinally elongate laterally, 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 and with 3 pairs of setae; mid tibial spur slightly longer than basitarsus; hind femur about 3.5X as long as broad; mid basitarsus with 4 ventral pegs; mid tibial spur slightly longer than basitarsus; fore wing with venation and setation as in Figs 266, 267, stigmal vein ( Fig. 266) slightly longer than postmarginal vein but slightly shorter than marginal vein; propodeum ( Fig. 268) medially about 0.08X as long as scutellum. Relative measurements: FWL 53.5, FWW 23.5; HWL 35, HWW 8.

Gaster with hypopygium reaching about 0.8X towards apex; last tergite about 0.8X as long as mid tibia, with apex more or less acute; ovipositor exserted, the exserted part about 1.4X as long as mid tibial spur or about 0.4X mid tibia.

Paratype. Mandible with 3 teeth, lowest acute, middle and upper rounded; palp formula 3-2; funicle with linear sensilla present only on F4-F6. Relative measurements: OL 58, GL 19 [MT 35].

Variation. Females vary in overall length from 0.82-0.91mm, the head varies from about 2.2- 2.4X as wide as the frontovertex. In both specimens excluded from the paratypes F4 is subequal to F3 (Fig, 264) and in one specimen (P.N. Tapanti) the mid and hind coxae are dusky, the hind femur is mostly brown, the dorsum of the gaster is entirely brown and the tangent to the frontovertex forms an angle of about 80° with the face, but in this specimen the head is somewhat dorsally collapsed.

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, 1300m, 15-16.ii.2006 (J.S. Noyes) . Paratypes: COSTA RICA, 1E, Puntarenas, Las Cruces , MT/YPT, 18-22.iii.1990 (J.S. Noyes) . Holotype in MZUCR, paratype in NHMUK .

Non type material. COSTA RICA, 1E, Alajuela, PN Volcán Tenorio, Est. Pilón, 700m, 10°43’N 84°59’W, 13-17.ii.2004 (C. Hansson); 1E, Cartago, Paraiso, PN Tapanti, 1200-1600m, iv.1999 (C. Hansson). Material in NHMUK .