Orasema qillu Burks Heraty & Dominguez, 2018

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), Zootaxa 4401 (1), pp. 1-107 : 77-79

Orasema qillu Burks Heraty & Dominguez n. sp.

urn:lsid:zoobank.org:act:70D2DFD7-32ED-4A99-B123-C3C69476C60C ( Figs 171–178 )

Diagnosis. Clypeus smooth. Mesoscutal midlobe areolate-reticulate. Mesoscutellar disc areolate to areolatereticulate. Axillula areolate-reticulate. Fore femur yellow.

Orasema qillu strongly resembles O. rapo in coloration, but differs in having an areolate-reticulate axillula that lacks longitudinal carinae ( Fig. 175 ). It differs from other species with such an axillula in having different coloration and completely areolate-reticulate mesoscutal midlobe sculpture ( Fig. 174 ).

Description. Female. Length 3.4–3.5 mm.

Color: Head and mesosoma green dorsally with yellowish to reddish luster, blue-green laterally. Pedicel yellowish brown; anellus yellowish brown; flagellum brown. Coxae blue green to black dorsally, becoming yellow apically; legs beyond coxae yellow. Fore wing hyaline; venation pale brown. Petiole dark blue to black; gaster brown with blue-green to purple luster.

Head: Head width:head height 1.1; face reticulate; longitudinal groove between eye and torulus absent; eyes bare, inter-ocular distance:eye height 1.5–1.6; malar space:eye height 0.7–0.8; supraclypeal area slightly broader than long, narrowed ventrally, mostly smooth but with some weak sculpture laterally; clypeus smooth to weakly sculptured. Flagellum length:head height 1.5; F2 2.4–3.0× as long as broad, 1.2× as long as F3; following funiculars subequal in width, progressively shorter.

Mesosoma: Mesosoma length:height 1.3–1.4. Mesoscutal midlobe areolate-reticulate, with minute setae; lateral lobe areolate-reticulate. Axilla areolate-reticulate; mesoscutellar disc areolate to areolate-reticulate; frenal line irregularly foveate; frenum areolate-reticulate; axillular groove anteriorly narrow, broad and foveate posteriorly; axillula areolate-reticulate. Propodeum with irregular median carina; propodeal disc areolatereticulate; callus areolate-reticulate, with a few small setae. Mesepisternum reticulate to areolate-reticulate dorsally, ventrally mostly smooth but areolate posteriorly, broadly rounded anterior to mid coxa. Upper mesepimeron smooth; lower mesepimeron reticulate; transepimeral sulcus distinct. Metepisternum dorsally smooth, foveate peripherally. Hind coxa 1.9–2.0× as long as broad; hind femur 5.4–5.8× as long as broad. Fore wing 2.5× as long as broad, 2.7× as long as mesothorax; stigma with 4 sensilla separated into pairs. Hind wing costal cell with a broad bare area.

Metasoma: Petiole 1.7–1.8× as long as broad, 0.8× as long as hind coxa, areolate, anterior carina weak. Antecostal sulcus crossed by carinae; acrosternite posteriorly angulate.

Male. Unknown.

Distribution. Argentina (Tucuman).

Material examined. Holotype: ARGENTINA: Tucuman: El Cadillal , 26°37'19.3"S, 65°11'11.6"W, 23.iii.2009, J. Torréns [1 ♀, UCRCENT00483465 ], deposited in MACN . Paratype: ARGENTINA: Tucuman: El Cadillal , 26°37'19.3"S, 65°11'11.6"W, 23.iii.2009, J. Torréns [1 ♀, IFML: UCRCENT00439062 ] .

Etymology. The Quechua word for “yellow” or “golden.”

Figures

FIGURES 171–176. Orasema qillu. ♀: 171. Habitus. 172. Head. 173. Antenna, with F2 plus pedicel, and F6–F7 inset. 174. Mesosoma, dorsal view. 175. Axillula. 176. Stigma and postmarginal vein.

FIGURES 177–178. Orasema qillu. ♀: 177. Propodeum.178. Petiole, hind coxa.