The New World ant parasitoid genus Orasema (Hymenoptera: Eucharitidae)
Baker, Austin J.
Heraty, John M.
Zootaxa
2020
2020-11-30
4888
1
1
84
Baker & Heraty, 2020
Baker & Heraty
2020
[151,407,151,177]
Insecta
Eucharitidae
Orasema
Animalia
Hymenoptera
63
64
Arthropoda
species
spyrogaster
sp. nov.
( Fig. 34)
Diagnosis.Distinguished from O. johnsoniby features given in the key.
Description. Female.Length 2.5–3.3 mm( Fig. 34A). Color.Scape brown; flagellum dark brown. Coxae brown with iridescence. Head( Fig. 34B). HW:HH = 1.2–1.3; face smooth; eyes covered in long, erect setae, IOD:EH = 1.3–1.4; MS:EH = 0.6–0.7; malar depression absent. Mandibular formula 3:2. Temples present, angulate. Flagellum with 8 funiculars, FL:HH = 1.6–1.7; anellus disc-shaped; F2L:F2W = 2.3–2.6, F2L:F3L = 1.3–1.4; following funiculars subequal in length, gradually broader ( Fig. 34D). Mesosoma( Fig. 34C, F). ML:MH = 1.5–1.8. Mesoscutal midlobe smooth; notauli shallow. Scutoscutellar sulcus narrow; frenal line indistinct; axillular sulcus indicated by a strong longitudinal carina. Propodeal disc broadly rounded ( Fig. 34G). Prepectus smooth. Mesepisternum weakly areolate laterally, smooth ventrally, nearly straight anterior to mid coxa. HCL:HCW 1.9–2; HFL:HFW 4.5–4.6. FWL:FWW 2.5–2.6, FWL:ML = 2.1–2.2; entirely densely setose. Hind wing costal cell entirely setose. Metasoma.PTL:PTW = 1.6–1.8, PTL:HCL = 0.8–1.0, lateral margin rounded. Antecostal sulcus foveate to smooth posteriorly; acrosternite posteriorly rounded. Male.Unknown.
Hosts.Unknown. Plant associates.Unknown.
Distribution( Fig. 32). Brazil: PA, RR. Collected in April, December.
Material examined. Holotype. BRAZIL. Roraima: Amajari, Serra do Tepequem, 3° 44’24”N, 61° 45’0”W, 1-15.iv.2016, Rafael et al., Malaise [ ♀, deposited in INPA: UCRCENT00504573]. Paratype. BRAZIL. Par: Utinga, Belem, 1° 25’12”S, 48° 26’24”W, xii.1966, S.J. Oliveira[ 1♀, BLCU: UCRCENT00251376 (former AEICspecimen)].
Etymology.From Greek spyrmeaning “basket and gastermeaning “stomach in reference to the odd basketlike structure of the valvifer.
Discussion.In all other species of Orasemathe valvifer is invariable, being apically rounded with long thin setae covering the surface ( Fig. 33E), whereas O. spyrogasteruniquely has thick cuticular projections (or digits) at the apex giving it a comb-like appearance, as well as having long thin setae covering the surface ( Fig. 34E).
2988974361
2016-04-01
2016-04-15
2016-04-01
Brazil
3.74
Serra do Tepequem
21
-61.75
Amajari
64
65
1
1
Roraima
holotype
2988974453
1966-12
AEIC
S. J. Oliveira
Brazil
-1.42
Belem
21
-48.440002
Utinga
64
65
1
1
Par
paratype