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
[151,392,1795,1822]
Insecta
Eucharitidae
Orasema
Animalia
Hymenoptera
67
68
Arthropoda
species
masonicki
sp. nov.
( Fig. 37)
Diagnosis.Distinguished from O. heacoxiby features provided in the key.
Description. Female.Length 1.9–2.2 mm( Fig. 37A). Color.Scape brown. Mandible brown. Femora brown with strong iridescence. Gaster dark brown with strong blue-green iridescence. Head( Fig. 37B). Head in frontal view elongate; HW:HH = 0.7–1.0; longitudinal groove between eye and torulus absent; IOD:EH = 1.0–1.1; MS:EH = 0.3–0.6; malar depression weakly impressed adjacent to mouth; epistomal sulcus distinct and sharply defined. Occiput deeply emarginate in dorsal view. Pedicel small and globose. FL:HH = 0.6–0.9; F2L:F2W = 1.0–1.5, F2L:F3L = 1.0 ( Fig. 37D). Mesosoma( Fig. 37C, F, G). ML:MH = 1.4–1.6. Mesoscutal midlobe reticulate. Scutoscutellar sulcus broad, narrowly separated from transscutal articulation; frenum reticulate; axillula reticulate. Mesepisternum reticulate laterally, weakly reticulate ventrally. Upper mesepimeron weakly reticulate; lower mesepimeron reticulate; transepimeral sulcus weakly impressed. Metepisternum laterally reticulate. HCL:HCW = 1.2–1.8, reticulate; HFL:HFW = 4.6–6.3. FWL:FWW = 2.2–3.9, FWL:ML = 1.9–2.4. Metasoma.PTL:PTW = 2.5–3.4, PTL:HCL = 1.1–1.7, lateral margin rounded, ventral sulcus present with margins narrowly separated. Apical setae of hypopygium with several setae on each side of midline. FIGURE 37. Orasema masonicki. Holotype female (INBIOCRI002242095): A, habitus, lateral; B, head, anterior; C, mesosoma, lateral; D, antenna; F, mesosoma, dorsal; G, propodeum, posterior. Paratype male (INBIOCRI002133102): E, antenna. Male.Length 2–2.1 mm. HW:HH = 0.9–1.1. Scape brown; FL:HH = 0.9–1.2; F2L:F2W = 0.8–1.4 ( Fig. 37E). Tibiae yellow. PTL:PTW = 5.5–7.5, PTL:HCL = 2.2–3.3.
Hosts.Unknown. Plant associates.Unknown.
Distribution( Fig. 35). Costa Rica: AL, GU, HE. Collected January–May.
Material examined. Holotype. COSTA RICA. Guanacaste:Est. Pitilla, 9 kmS Santa Cecilia, P.N. Guanacaste, 700m, 10°59’28”N, 85°25’39”W, iii.1995, P. Rios, #4359 [ ♀, deposited in INBIO: INBIOCRI02242095]. Paratypes. COSTA RICA. Alajuela: Sect. San Ramon de Dos Rios, 620m, 10°52’54”N, 85°24’41”W, 16.i- 3.ii.1995, F.A. Quesada, #4400 [1³, INBIO: INBIOCRI02192938]; 20.ii-5.iii.1995, #4401 [4³ 1?, INBIO: IN-BIOCRI02138790, INBIOCRI02138802, INBIOCRI02138811, INBIOCRI02138832, INBIOCRI02138835]; C. Cano, #4396 [15³ 4♀, INBIO: INBIOCRI02133093, INBIOCRI02133101–02, INBIOCRI02133144, INBIOC- RI02133155–56, INBIOCRI02133159, INBIOCRI02133164–66, INBIOCRI02133183, INBIOCRI02133195, IN-BIOCRI02133204, INBIOCRI02133209, INBIOCRI02133213–15, INBIOCRI02133225, INBIOCRI02133227]; 20.ii-3.iii.1995, #4398 [10³ 8♀, INBIO: INBIOCRI02174676–77, INBIOCRI02174679–80, INBIOCRI02174682, INBIOCRI02174686–87, INBIOCRI02174691, INBIOCRI02174714, INBIOCRI02174730, INBIOCRI02174755, INBIOCRI02174760, INBIOCRI02174776, INBIOCRI02174783, INBIOCRI02174787–88, INBIOCRI02174793, INBIOCRI02174800]; 11-15.iv.1994, C. Moraga, #2840 [1³, INBIO: INBIOCRI01780190]; 13-28.iii.1994, K. Tay-lor, #2763[4³ 1♀, INBIO:INBIOCRI01712287, INBIOCRI01712554, INBIOCRI01712730, INBIOCRI01712733, INBIOCRI01760375]. Guanacaste:Est. Pitilla, 9 kmS Santa Cecilia, P.N. Guanacaste, 700m, 10°59’28”N, 85°25’39”W, 2-19.iii.1992, P. Rios [ 1♀, INBIO: INBIOCRI00420518]. Sector Las Pailas, 800m, 10°46’31”N, 85°20’59”W, 12.iv-3.v.1995, K. Taylor, #4810 [2³ 1♀, INBIO: INBIOCRI02425608, INBIOCRI02425621, IN-BIOCRI02425633]; 16-30.iii.1995, #4811 [8³, INBIO: INBIOCRI02403459, INBIOCRI02403595, INBIOC-RI02403602–03, INBIOCRI02403778, INBIOCRI02403840, INBIOCRI02403851, INBIOCRI02403878]. Heredia:Send. Terciopelo, Est. Magsaysay, P.N.Braulio Carrillo, 220m, 10°24’2”N, 84°02’53”W, 1991, malaise trap[1³, INBIO: INBIOCRI01194079].
Etymology.Named in honor of Paul Masonick, an entomologist who has helped to collect specimens of Orasema, including those of the heacoxigroup. Unplaced Orasemaspecies ( Figs 38–44)
Discussion.Several species could not be confidently placed to species group, especially those lacking molecular phylogenetic data. Placing these taxa into species groups described herein would make the species group key more difficult to use, so we prefer to treat them as unplaced until more data can be collected.
2988974368
1995-03
P. N. Guanacaste & P. Rios
Costa Rica
700
10.991112
Santa Cecilia
21
-85.4275
69
70
1
1
Guanacaste
holotype
2988974329
1994-03-13
1995-03-05
1994-03-13
IN-
F. A. Quesada & C. Cano & C. Moraga
Costa Rica
620
10.881667
Sect. San Ramon de Dos Rios
21
-85.41139
69
70
IN-BIOCRI02138790, INBIOCRI02138802, INBIOCRI02138811, INBIOCRI02138832, INBIOCRI02138835, IN-BIOCRI02133204, INBIOCRI02133209, INBIOCRI02133213-15, INBIOCRI02133225, INBIOCRI02133227
13
13
Alajuela
paratype
2988974309
1992-03-02
1992-03-19
1992-03-02
IN-
P. Rios
Costa Rica
700
10.775277
Guanacaste
21
-85.349724
69
70
BIOCRI02425633
1
2
Guanacaste
paratype
2988974457
1995-04-12
1995-05-03
1995-04-12
IN-
K. Taylor
Costa Rica
800
10.775277
Sector Las Pailas
21
-85.349724
69
70
BIOCRI02425633
1
1
Guanacaste
paratype
2988974318
1995-03-16
1995-03-30
1995-03-16
IN-
Costa Rica
700
10.775277
Sector Las Pailas
21
-85.349724
69
70
IN-BIOCRI02425633
1
1
Guanacaste
paratype
2988974384
1992-03-02
1995-05-03
1992-03-02
IN-
Costa Rica
700
10.775277
Sector Las Pailas
21
-85.349724
69
70
BIOCRI02425633
1
2
Guanacaste
paratype
2988974442
Est. Magsaysay, P. N.
Costa Rica
220
10.400556
Heredia
21
-84.04806
69
70
1
Heredia
paratype