Orasema nyamo Burks & Heraty & Dominguez & Mottern 2018, n. sp.
Creators: name: Burks, Roger A.
name: Heraty, John M.
name: Dominguez, Chrysalyn
name: Mottern, Jason L.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Eucharitidae
Orasema
Orasema nyamo

description: Orasema nyamo Burks, Heraty & Dominguez n. sp.
urn:lsid:zoobank.org:act:D589E220-977A-4609-BFBE-D0169051F28D (Figs 147–154)
Diagnosis. Mesoscutal midlobe and mesoscutellar disc areolate to areolate-reticulate. Axillula areolate. Petiole in females extending beyond hind coxal apex. This species is best recognized by its small size in combination with a long petiole and pale flagellum (Figs 147, 149, 154).
Orasema yaax differs in having a dark flagellum (Fig. 263), and subtly different mesoscutellar sculpture (Fig. 264). Orasema stramineipes differs in having an entirely yellow fore femur (Fig. 207).
Description. Female. Length 2.4–3.6 mm.
Color: Head and mesosoma green to blue green dorsally, with some purple areas laterally. Pedicel yellowish brown; anellus yellowish brown; flagellum yellowish brown. Coxae brown with metallic luster dorsally, becoming yellow apically; fore femur mostly yellowish-brown, tips pale; fore; mid femur mostly yellowish brown, yellow at tips; hind femur yellow. Fore wing hyaline; venation pale brown. Petiole blue-green; gaster brown with blue to purple luster.
Head: Head width:head height 1.1–1.2; face reticulate; longitudinal groove between eye and torulus absent; eyes bare, inter-ocular distance:eye height 1.5–1.7; malar space:eye height 0.7–0.8; supraclypeal area longer than broad, smooth medially and ventrally, weakly sculptured dorsally and laterally; clypeus smooth to weakly sculptured. Flagellum length:head height 1.6–1.7; F2 2.6–3.2× as long as broad, 1.0–1.3× as long as F3; following funiculars progressively shorter and broader.
Mesosoma: Mesosoma length:height 1.1–1.5. Mesoscutal midlobe areolate-reticulate, becoming areolate posteriorly, with minute setae; lateral lobe areolate-reticulate. Axilla areolate-reticulate; mesoscutellar disc areolate to areolate-reticulate; frenal line regularly foveate; frenum areolate; axillular groove anteriorly narrow, broad and foveate posteriorly; axillula areolate. Propodeum with irregular median carina; propodeal disc areolate; callus areolate-reticulate, with 3–5 setae. Mesepisternum reticulate to areolate-reticulate laterally, smooth ventrally, broadly rounded anterior to mid coxa. Upper mesepimeron mostly smooth, with some weakly reticulate areas; lower mesepimeron areolate-reticulate; transepimeral sulcus distinct. Metepisternum laterally areolate-reticulate. Hind coxa 2.0–2.6× as long as broad; hind femur 6.3–7.1× as long as broad. Fore wing 2.4–2.9× as long as broad, 2.9–3.3× as long as mesothorax; stigma with 4 sensilla separated into pairs. Hind wing costal cell with a broad bare area.
Metasoma: Petiole 2.9–4.0× as long as broad, 1.1–1.3× as long as hind coxa, areolate to areolate-reticulate, anterior carina moderate. Antecostal sulcus crossed by carinae; acrosternite posteriorly angulate.
Male. Unknown.
Distribution. Costa Rica, Panama.
Material examined. Holotype: COSTA RICA: Puntarenas: Monteverde, 1200–1700m, 10°16'30"N, 84°49'32"W, 2–6.xii.1987, Genier & Bertrand [1 ♀, UCRCENT00425947], deposited in CNCI. Paratypes: COSTA RICA: Cartago: La Cangreja, 1950m, viii–ix.1991, Hanson & Godoy [1 ♀, MUCR: UCRCENT00479318]. Guanacaste: Estac. Mengo, SW Volcan Cacao, 1100m, 10°56'03"N, 85°27'22"W, 1988– 1989 [1 ♀, UCRC: UCRCENT00413503]. Guanacaste N.P., Pitilla Biological Station, 10°59'31"N, 85°28'20"W, 1.ii.1995, L. Masner, screen sweep [1 ♀, UCRC: UCRCENT00312156]. Heredia: Zurqui de Moravia, 1600m, 10°00'32"N, 84°00'40"W, 3–4.iii.1996, L. Masuev, creekbed, MT [1 ♀, CNC: UCRCENT00425816 (D4642)]. Puntarenas: Monteverde, 1200–1700m, 10°18'25"N, 84°48'35"W, 2–6.xi.1987, Genier & Bertrand [1 ♀, FSCA: UCRCENT00237529]. Monteverde, 1400m, 10°16'30"N, 84°49'32"W, 30.iv.1989, Hanson [1 ♀, UCRC: UCRCENT00413515]. Monteverde, San Luis Valley, 10°16'23"N, 84°49'27"W, 17.viii.1986, L. Masner [2 ♀, CNC: UCRCENT00425955; MUCR: UCRCENT00479300]. Monteverde; Finca Canada Reserve, 10°15'21"N, 84°48'54"W, 22.viii.1992, D. Currie [11 ♀, CNC: UCRCENT00425948–54, UCRCENT00425956, UCRCENT00425959, UCRCENT00479154–55]. Monteverde, 10°17'05"N, 84°48'48"W, 25–28.v.1998, V. Berezovosky, pan trap [2 ♀, UCRC: UCRCENT00312194–95]. San Jose: Zurqui de Moravia, 1600m, 10°03'00"N, 84°01'00"W, iii.1989, Paul Hanson [1 ♀, UCRC: UCRCENT00413510]. Zurqui de Moravia, 1600m, 10°03'00"N, 84°01'00"W, ix–x.1990, P. Hanson [2 ♀, CNC: UCRCENT00425957–58]. Zurqui de Moravia, 1600m, 10°03'00"N, 84°01'00"W, vii.1990, Paul Hanson [3 ♀, UCRC: UCRCENT00413505–07]. Zurqui de Moravia, 1600m, vii.1991, Paul Hanson [2 ♀, MUCR: UCRCENT00479307–08]. Zurqui de Moravia, 1600m, x– xii.1990, Paul Hanson [1 ♀, MUCR: UCRCENT00479314]. Zurqui de Moravia, 1600m, x.1995, P. Hanson [2 ♀, MUCR: UCRCENT00479316–17]. Zurqui Moravia, 1600m, v.1992, P. Hanson [1 ♀, MUCR: UCRCENT00479313]. PANAMA: Chiriqui: 1720m, 8°50'00"N, 82°35'00"W, 15–16.v.1973, J. Helava [1 ♀, CNC: UCRCENT00240937].
Etymology. The Mangue word for “small,” referring to its generally small size relative to closely related species.
description: Published as part of Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), pp. 1-107 in Zootaxa 4401 (1) on pages 71-73, DOI: 10.11646/zootaxa.4401.1.1, http://zenodo.org/record/1207463