Orasema reburra, Burks, Roger A., Mottern, Jason & Heraty, John M., 2015

Burks, Roger A., Mottern, Jason & Heraty, John M., 2015, Revision of the Orasema festiva species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 3972 (4), pp. 521-534 : 532-533

Orasema reburra n. sp.

urn:lsid:zoobank.org:act:2E0FE42B-5AFA-4772-A21F-81BAA2852D3B ( Figs 26–29 )

Diagnosis. Most of body, including petiole but not eyes, with long setae ( Figs 26, 28 ). Petiole slightly expanded laterally near midlength, with one or two dorsal longitudinal carinae ( Fig. 29 ).

Orasema reburra is the only known species with a dark brown metacoxa ( Figs 26, 29 ). Distinguished from O. caesariata , the only other species with long setae, by absence of setae from the eye, and by the more rounded head in frontal view ( Fig. 27 ).

Female. Length, 3.4–4.2 mm. Head and mesosoma metallic blue to purple; pedicel and anellus pale brown, flagellum dark brown; coxae dark brown, metatrochanters yellow; petiole dark metallic purple to black, gaster dark brown to black.

Head subtriangular, 1.4× as long as broad ( Fig. 27 ). Face with very shallow longitudinal groove between torulus and eye but lacking surrounding depression; scrobal depression with median carina bordered laterally by broad foveate furrow. Eye bare. Labrum with 9–11 digits. Palpal formula 2-2. Pedicel as broad as F2; flagellum 1.5–1.7× height of head; F2 2.5× as long as broad, F2 1.1× as long as F3.

Mesosoma ( Fig. 28 ) with mesoscutum coarsely areolate-rugose and densely setose, lateral lobe with irregular transverse carinae and finely sculptured area near center. Axilla areolate-rugose; mesoscutellar disc coarsely areolate-rugose, slightly longer than broad, broadly separated from transscutal articulation basally by deep fovea; frenum areolate-rugose. Propodeal disc coarsely areolate-rugose, median carina lacking; callus smooth, with a few long setae. Metafemur with semi-erect long setae, setae denser and decumbent apically. Fore wing 2.3–2.6× as long as broad; stigmal vein 2.0–2.5× as long as broad, perpendicular to anterior margin.

Metasoma with petiole 1.3–1.4× as long as metacoxa, 2.5–2.6× as long as broad, laterally expanded near midlength, smooth, with 1 or 2 dorsal longitudinal carinae ( Fig. 29 ). Hypopygium with few minute setae apically. Ovipositor not visible in available specimens.

Male. Unknown.

Type material. Holotype. Ecuador: Napo: Anangu, 240m, 0°30'22"S, 76°23'04"W, 25–30.xi.1987, Mike Huybensz [1♀, MCZ: UCRCENT00316397]. Paratypes. Brazil: Belen, Duret (leg.), viii.1951 [1♀, UCRC: UCRCENT00434661]. Colombia: Amazonas: PNN Amacayacu San Martin, 150m, 3°23'00"N, 70°06'00"W, 10– 18.x.2000, B. Amado, malaise trap [1♀, IAVH: UCRCENT00092181]; PNN Amacayacu San Martin, 150m, 3°23'00"N, 70°06'00"W, 8–16.ix.2000, B. Amado, malaise trap [1♀, UCRC: UCRCENT00091402]. Peru: Cusco: Quince Mil, 750m, 13°13'03"S, 70°44'27"W, 15–30.x.1962, L. Peña [1♀, CNC: UCRCENT00320755].

Etymology. From the Latin reburrus meaning “with bristling hair”.

Figures

FIGURES 26 – 29. Orasema reburra. 26 – 28, holotype female (UCRCENT 00316397): 26, habitus, lateral; 27, head, anterior; 28, mesosoma, dorsal. 29, paratype female (UCRCENT 00092181): petiole, dorsal.