Orasema kaspi 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 : 53-54

Orasema kaspi Burks, Heraty & Dominguez , n. sp.

urn:lsid:zoobank.org:act:5F4498DF-263B-49B0-834D-D77862F2C303 ( Figs 97–104 )

Remarks. All known female specimens of this species have broken flagella, such that at least the clava is missing.

Diagnosis. Mesoscutal midlobe and mesoscutellar disc areolate, with reddish areas. Axillula areolate. Petiole more than 1.2× as long as hind coxa, extending far beyond hind coxal apex.

This species has the longest petiole among females of this species group ( Figs 97, 104 ). It is similar to O. stramineipes and O. yaax , but differs in having a longer petiole and a completely areolate mesoscutum ( Figs 100, 101 ).

Description. Female. Length 2.0– 3.3 mm.

Color: Head and mesosoma green with reddish luster on mesoscutal midlobe, axilla, and mesoscutellar disc. Pedicel yellowish brown; anellus yellowish brown; flagellum brown. Coxae brown to green; legs beyond coxae yellow. Fore wing hyaline; venation brown. Petiole green; gaster green to purple.

Head: Head width:height 1.1–1.3; face reticulate; longitudinal groove between eye and torulus absent; eyes bare; inter-ocular distance:eye height 1.4–1.6; malar space:eye height 0.7–0.9; supraclypeal area longer than broad, smooth to weakly sculptured; clypeus smooth. F2 3.0–5.5× as long as broad, 1.2–1.4× as long as F3; following funiculars progressively shorter and broader.

Mesosoma: Mesosoma length:height 1.2–1.5. Mesoscutal midlobe areolate to areolate-reticulate, with minute setae; lateral lobe areolate-reticulate. Axilla areolate-reticulate; mesoscutellar disc areolate, coarser posteriorly; frenal line regularly foveate; frenum areolate-reticulate; axillular groove anteriorly narrow, broad and foveate posteriorly; axillula areolate. Propodeum with irregular median carina; propodeal disc areolate to areolatereticulate; callus areolate-reticulate, with 3–5 setae. Mesepisternum reticulate to areolate-reticulate laterally, smooth ventrally, broadly rounded anterior to mid coxa. Upper mesepimeron smooth to weakly sculptured; lower mesepimeron reticulate; transepimeral sulcus distinct. Metepisternum laterally reticulate. Hind coxa 2.0–3.0× as long as broad; hind femur 6.0–10.0× as long as broad. Fore wing 2.5–2.8× as long as broad, 2.0–2.4× as long as mesothorax; stigma with 4 sensilla separated into pairs. Hind wing costal cell with a broad bare area.

Metasoma: Petiole 4.0–5.0× as long as broad, 1.2–1.3× as long as hind coxa, areolate to areolate-reticulate, anterior carina moderate. Antecostal sulcus crossed by carinae; acrosternite posteriorly angulate.

Male. Unknown.

Distribution. Peru.

Material examined. Holotype: PERU: Cusco: Aguas Calientes , 2000–2800m, 13°09'17.4"S, 72°31'31.2"W, 28.xii.1983, L. Huggert [1 ♀, UCRCENT00242585 ], deposited in MZLU . Paratypes: PERU: Tingo Maria , 651m, 9°17'45"S, 75°59'52"W, 20–27.i.1968, A. Garcia & C. Porter [1 ♀, MCZ: UCRCENT00318653 ] . Tingo Maria, 1 km. E. of town, 609m, 15.viii.1971, P.S. & H.L. Broomfield, dense woodland; forested eastern foothills of the Andes , malaise trap [2 ♀, BMNH: UCRCENT00309308–09 ]. Tingo Maria , 1 km. E. of town, at edge of woodland, 609m, 6.viii.1971, P.S. & H.L. Broomfield, forested eastern foothills of the Andes [1 ♀, BMNH: UCRCENT00309307 ] . Cusco: Aguas Calientes , 2000–2800m, 13°09'17.4"S, 72°31'31.2"W, 28.xii.1983, L. Huggert [2 ♀, MZLU: UCRCENT00242584 , UCRCENT00242588 ] . Machu Picchu , 2000–2500m, 13°09'49"S, 72°32'45"W, 21.xii.1983, L. Huggert [1 ♀, MZLU: UCRCENT00242591 ] .

Etymology. From the Quechua word k’aspi, meaning “rod,” referring to the long petiole in females.

Figures

FIGURES 97–104. Orasema kaspi. ♀: 97. Habitus. 98. Head. 99. Antenna, with F2 plus pedicel, and F6–F7 inset. 100. Mesosoma, dorsal view. 101. Axillula. 102. Stigma and postmarginal vein.