Orasema cerulea, Baker & Heraty, 2020

Baker, Austin J. & Heraty, John M., 2020, The New World ant parasitoid genus Orasema (Hymenoptera: Eucharitidae), Zootaxa 4888 (1), pp. 1-84: 53-56

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Orasema cerulea

n. sp.

Orasema cerulea   n. sp.


( Fig. 28 View FIGURE 28 )

Diagnosis. Distinguished from O. acuminata   by the features given in the key.

Description. Female. Length 2.6–3.0 mm ( Fig. 28A View FIGURE 28 ). Color. Head and mesosoma dark iridescent blue. Pedicel pale brown. Femora mostly brown, tips pale. Head ( Fig. 28B View FIGURE 28 ). HW:HH = 1.1–1.2; face rugose-reticulate; IOD: EH = 1.7–1.9; MS:EH = 0.9–1.0; malar depression weakly impressed adjacent to mouth; supraclypeal area as long as broad, weakly rugose-reticulate; anteclypeus distinct, broadly rounded. FL:HH = 1.3–1.4; F2L:F2W = 2.1–2.8, F2L:F3L = 1.1–1.3; following funiculars subequal in length, gradually broader; clava subovate ( Fig. 28D View FIGURE 28 ). Me-sosoma ( Fig. 28C, G, H View FIGURE 28 ). ML:MH = 1.2–1.3. Axilla dorsally well above mesoscutellum; scutoscutellar sulcus narrowly separated from transscutal articulation; frenal line irregularly foveate; axillular sulcus weak and foveate. Upper mesepimeron smooth; lower mesepimeron nearly smooth with weak carinae. Metepisternum weakly rugose-areolate. HCL:HCW = 1.6–2.1, costate; HFL:HFW = 6.6–8.9. FWL:FWW = 2.5–2.7, FWL:ML = 2.3–2.5; basal area sparsely setose, speculum bare, costal cell and wing disc setose; submarginal vein with several long setae; stigmal vein slightly angled toward wing base. Metasoma. PTL:PTW = 5.4–6.5, PTL:HCL = 2.1–2.4, lateral margin rounded. Apical setae of hypopygium with one pair of long setae. Ovipositor with subapical carina present; first (ventral) valvula with 6–8 small, narrowly separated teeth, second (dorsal) valvula with 6 or 7 annuli that are broadly separated dorsally by smooth area ( Fig. 28F View FIGURE 28 ).

Male. Unknown.

Hosts. Unknown.

Plant associates. Unknown.

Distribution ( Fig. 26 View FIGURE 26 ). Costa Rica: AL; Honduras: YO. Collected in February and September.  

Material examined. Holotype. HONDURAS. Yoro: Palo de Comba , 15°11’0”N, 87°39’0”W, 27.ix.1995, R. Cave, mid elevation secondary forest, Malaise Trap [♀, deposited in MZLU: UCRCENT00242604]. GoogleMaps   Paratypes. COSTA RICA. Alejuela: Playuelas, RNVS Caño Negro , 20m, 10 ° 57’13”N, 84° 44’51”W, 1–18.ii.1994, K. Martinez [1♀, INBIO: INBIOCRI001746776] GoogleMaps   . HONDURAS. Yoro: Palo de Comba , 15°11’0”N, 87°39’0”W, 27.ix.1995, R. Cave, mid elevation secondary forest, Malaise Trap [2♀, MZLU: UCRCENT00242603, UCRCENT00242605]. GoogleMaps  

Etymology. From Latin cerule meaning “blue” in reference to the body coloration.