Orasema llika 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 : 59-60

Orasema llika Burks, Heraty & Dominguez n. sp.

urn:lsid:zoobank.org:act:5F94B0D3-286E-4EF7-8289-5449003B3103 ( Figs 123–130 )

Diagnosis. Mesoscutal midlobe areolate-reticulate. Mesoscutal sidelobe with transverse carinae ( Fig. 126 ). Axilla with oblique carinae. Mesoscutellar disc with longitudinal carinae ( Figs 126, 127 ). Axillula with parallel longitudinal carinae and no other sculpture ( Fig. 127 ).

Description. Female. Length 2.2–2.9 mm.

Color: Head and mesosoma blue to green, with yellow luster on the mesoscutal midlobe, axilla, and mesoscutellum. Pedicel yellow to yellowish-brown; anellus yellow to yellowish-brown; flagellum pale brown. Coxae brown dorsally, becoming yellow apically; fore femur brown; mid and hind femora yellow. Fore wing hyaline; venation pale brown. Petiole blue-green; gaster brown, acrosternite dark brown to black.

Head: Head width:head height 1.1–1.2; face reticulate; longitudinal groove between eye and torulus present or absent; eyes bare, inter-ocular distance:eye height 1.3–1.4; malar space:eye height 0.6–0.7; supraclypeal area longer than broad, smooth; clypeus smooth. Flagellum length:head height 1.5–1.7; F2 2.7–2.9× as long as broad, 1.0–1.2× as long as F3; following funiculars subequal in width, progressively shorter in larger specimens, progressively shorter and broader in smaller specimens.

Mesosoma: Mesosoma length:height 1.4. Mesoscutal midlobe areolate-reticulate, with minute setae; lateral lobe areolate-reticulate anteriorly, with transverse carinae posteriorly. Axilla areolate-reticulate with oblique carinae; mesoscutellar disc areolate with longitudinal carinae laterally; frenal line irregularly foveate; frenum areolate-reticulate; axillular groove anteriorly absent, broad and foveate posteriorly; axillula with parallel longitudinal carinae. Propodeum with median carina; propodeal disc areolate to areolate-reticulate; callus areolatereticulate, with 3–5 setae. Mesepisternum areolate-reticulate laterally, smooth ventrally, broadly rounded anterior to mid coxa. Upper mesepimeron smooth; lower mesepimeron reticulate to areolate-reticulate; transepimeral sulcus distinct. Metepisternum laterally smooth dorsally, reticulate ventrally. Hind coxa 2.1–2.7× as long as broad; hind femur 5.6–6.4× as long as broad. Fore wing 2.7–2.9× as long as broad, 2.8× as long as mesothorax; stigma with 4 sensilla separated into pairs. Hind wing costal cell with a broad bare area.

Metasoma: Petiole 2.3–2.5× as long as broad, 2.3–2.5× as long as hind coxa, areolate to areolate-reticulate, anterior carina moderate. Antecostal sulcus crossed by minute carinae; acrosternite posteriorly angulate.

Male. Unknown.

Distribution. Trinidad.

Material examined. Holotype: TRINIDAD: Arima: Simla Research Station , along ridge, 250m, 10°41'34"N, 61°17'23"W, 21–22.vii.2013, C. Weirauch, yellow pan trap [1 ♀, UCRCENT00446765 ], deposited in UCRC . Paratypes: TRINIDAD: Arima Ward, Simla (N.Y. Zool. Soc. Sta. ), 10°41'49"N, 61°17'06"W, 11.vi.1977, E. E. Grissell, low vegetation, sweep [1 ♀, FSCA: UCRCENT00411916 ] . Arima: Simla Research Station , along ridge, 250m, 10°41'34"N, 61°17'23"W, 21–22.vii.2013, C. Weirauch, yellow pan trap [2 ♀, UCRC: UCRCENT00446769–70 ] . Simla Res.St. , 250m, 10°41'36"N, 61°17'17"W, 25–26.vii.2013, Weirauch, nr bat house, YPT [1 ♀, UCRC: UCRCENT00333838 ] . v.2004 [1 ♀, UCRC: UCRCENT00446768].

Etymology. The Quechua word for “network,” referring to the pattern of mesosomal carinae.

Figures

FIGURES 123–128. Orasema llika. ♀: 123. Habitus. 124. Head. 125. Antenna, with F2 and F6–F7 inset. 126. Mesosoma, dorsal view.127. Axillula.128. Stigma and postmarginal vein.

FIGURES 129–130. Orasema llika. ♀: 129. Propodeum.130. Petiole.