Ooctonus costaricensis Huber

Huber, John T., 2013, Revision of Ooctonus in the Neotropical region and comparison with Boudiennyia (Hymenoptera: Mymaridae), Zootaxa 3701 (1), pp. 1-23 : 3-9

Ooctonus costaricensis Huber , sp. n.

( Figs 3, 4 , 8, 9, 13, 14, 19, 23)

Type material. Holotype ♀ in UCRC, on slide ( Fig. 23 ) with four labels: 1. “ Costa Rica: San José Zurqui de Moravia 10.05ºN. 84.02ºW. vi.1995. P. Hanson Malaise trap. 1600m ”. 2. “UCRC Mounted at UCR/ERM by V.V. Berezovskiy 2008 in Canada balsam lateral”. 3. “Univ. Calif. Riverside Ent. Res. Museum UCRC ENT 296747”. 4. “ Ooctonus costaricensis Huber ♀ Holotype dry body length 0.86 mm.”

Paratypes (6 ♀). COSTA RICA. Alajuela. Rio Barranca, S. of Zarcerco, 12.xii.1987, P. Hanson, screen sweep, ROM 878012 (1 ♀, ROM). San José. Zurquí de Moravia, 1600m, v and viii.1995, P. Hanson (4 ♀, CNC, UCRC); San Antonio de Escazú, 700m, ix.1996, P. Hanson, C. Flores (1 ♀, CNC).

Diagnosis. Propodeum without a median carina so the pentagonal areole is almost in contact with the dorsellum ( Figs 13, 14 ).

Females of O. costaricensis are most similar to those of O. vulgatus Haliday and O. notatus from America North of Mexico. They differ from O. vulgatus by the absence of claval bullae (a row of several bullae in O. vulgatus ) and entirely reticulate frenum (medially smooth frenum in O. vulgatus ), and from O. notatus by the lack of mps on fl5 (two mps on fl 5 in O. notatus ).

Description. Female. Body length 845–973 Μm (critical point dried, n=5). Head except mouthparts and mesosoma almost black; metasoma mostly yellow or light brown, sometimes with ovipositor and surrounding area brown or apical half dorsally brown; procoxa and mouthparts brown; antenna dark brown except scape and pedicel laterally and ventrally yellow; petiole and legs except procoxa and apical tarsomere, yellow with brown on much of femora dorsally and laterally. Fore wing ( Fig. 19 ) with distinct brown suffusion in basal half, especially along posterior margin. Head. Width (n=2) 262–306. Vertex without stemmaticum ( Figs 3, 4 ). Mid ocellus diameter 23– 27. Antenna. Measurements (length/width, n=2): scape 189–207/34–43, pedicel 68–74/36–37, fl1 56–67/17, fl2 46– 64/18–19, fl3 50–56/20–22, fl4 40–52/21–22, fl5 48–60/22–23, fl6 44–45/24–25, fl7 53–65/30, fl8 49–57/32–34, clava 162–188/59. Flagellum (Figs 8, 9) total length 385–476; with 2 mps on fl7 and fl8; fl1 slightly the longest funicle segment; fl1–fl6 length/width ratios (n=2): fl1 3.31–4.00, fl2 2.64–3.38, fl3 2.43–2.56, fl4 1.92–2.43, fl5 2.13– 2.57, fl6 1.85–2.23; clava 2.75–3.19× as long as wide, slightly longer than fl6–fl8 together, with 7 mps and without bullae (Fig. 8, inset). Mesosoma. Pronotum ( Figs 13, 14 ) with collar moderately short, with well defined transverse carina. Mesonotum midlobe with engraved meshes; scutellar seta moderately long, not quite extending posteriorly to medially straight frenal line; axilla reticulate, lateral panel of axilla and axillula smooth; frenum entirely reticulate. Metanotum with dorsellum smooth and lateral lobes with at most 1 longitudinal carina ( Figs 13, 14 ). Propodeum ( Fig. 14 ) slightly rugose between carinae; anterior margin with propodeal stub distinctly lateral to lateral margin of dorsellum; median areole almost abutting dorsellum, separated only by carina almost as wide as FIGURES 7–11. Ooctonus spp., female antenna (insets show clava – usually with bullae – and fl7 + fl8). 7, O. clebschi , holotype; 8, O. costaricensis , holotype; 9, O. costaricensis , paratype; 10, O. woolleyi , holotype; 11, O. zolnerowichi , holotype. Scale bars are 100 µm.

long; plica almost straight, its anterior apex clearly lateral to apex of propodeal stub and not extending to anterior margin. Wings. Fore wing ( Fig. 19 ) length 902–1103, width 295–382, length/width 2.89–3.05, and longest marginal setae 90, 0.08–0.10× as long as greatest wing width (n=2). Hind wing ( Fig. 19 ) length 682–834, width 41–52, and longest marginal setae 84–89 (n=2). Metasoma. Petiole shorter than metacoxa + metatrochantellus. Gaster with ovipositor length 441–450 (n=2), 1.14–1.37× as long as metatibia length (328–388) and projecting slightly beyond gastral apex.

Male. Unknown.

Etymology. The species is named after the country, Costa Rica, in which all the specimens were collected.

Hosts and Habitat. Unknown.

Figures

FIGURES 1 – 6. Ooctonus spp., head, holotypes. 1, O. clebschi, anterior; 2, O. clebschi, posterior; 3, O. costaricensis, anterior; 4, O. costaricensis, internal, showing tentorium, base of labrum with torma, and sitophore; 5, O. woolleyi, anterior; 6, O. zolnerowichi, anterior. ata = anterior tentorial arm. Scale bars are 100 µm.

FIGURES 18 – 25. Ooctonus spp., 18 – 21, wings; 22 – 25, type slides. 18, O. clebschi, holotype; 19, O. costaricensis, holotype; 20, O. woolleyi, holotype; 21, O. zolnerowichi, holotype; 22, O. clebschi; 23, O. costaricensis; 24, O. woolleyi; 25, O. zolnerowichi. Scale bars are 500 µm.

FIGURES 12 – 14. Ooctonus spp. 12, O. woolleyi, male genitalia; 13, O. costaricensis, mesosoma lateral, holotype; 14, O. costaricensis, mesosoma dorsal, paratype. Scale bars are 100 µm.