Ooctonus, Haliday, 1833

Huber, John T., Read, Jennifer D. & Triapitsyn, Serguei V., 2020, Illustrated key to genera and catalogue of Mymaridae (Hymenoptera) in America north of Mexico, Zootaxa 4773 (3), pp. 1-411 : 267

publication ID	https://doi.org/10.11646/zootaxa.4773.1.1
publication LSID	lsid:zoobank.org:pub:B1D8D67C-4FDC-477E-872F-E8BCD4D027FB
DOI	https://doi.org/10.5281/zenodo.3845008
persistent identifier	https://treatment.plazi.org/id/038A0765-FEDC-B87A-48D5-FBFB887DF902
treatment provided by	Plazi (2020-05-12 07:43:02, last updated 2024-11-25 22:15:37)
scientific name	Ooctonus
status

Treatment

OOCTONUS Haliday, 1833 View in CoL View at ENA

( Figs 715–749 View FIGURE 715 View FIGURES 716–720 View FIGURES 721–723 View FIGURES 724–729 View FIGURES 730–735 View FIGURES 736–742 View FIGURES 743–749 )

Ooctonus Haliday, 1833a: 268, 1833b: 343 View in CoL . Type species: Ooctonus insignis Haliday, 1833 View in CoL , by subsequent designation by Westwood, 1839: 78.

Sphecomicrus Walker, 1846: 18 View in CoL , and Errata and Addenda: 50. Type species: Ooctonus insignis Haliday, 1833 View in CoL , by subsequent designation by Peck, 1951: 410.

Diagnosis. Body length 690–1845 μm. Funicle 8-segmented; tarsi 5-segmented; face without subantennal sulci ( Figs 716 View FIGURES 716–720 , 730 View FIGURES 730–735 ); pronotum entire, not divided by median longitudinal sulcus ( Figs 723 View FIGURES 721–723 , 739 View FIGURES 736–742 ); fore wing with hypochaeta next to proximal macrochaeta ( Fig. 722 View FIGURES 721–723 ); propodeum with diamond-like pattern of carinae, the incomplete median carina, costulae and plicae defining a central pentagonal areole and, sublaterally, several (usually 4) submedian areoles ( Figs 723 View FIGURES 721–723 , 736, 740 View FIGURES 736–742 ); petiole distinctly longer than wide ( Figs 726, 727 View FIGURES 724–729 , 741, 742 View FIGURES 736–742 , 744 View FIGURES 743–749 ); gt 1 in lateral view usually as long as remaining terga together ( Fig. 744 View FIGURES 743–749 ).

Discussion. Ooctonus is traditionally placed near the Gonatocerus group of genera but superficially resembles several genera in the Polynema group except for the obvious difference in number of antennal (in females) and tarsal segments. The position of the hypochaeta, close to the proximal macrochaeta is more similar to the latter group than to members of the Gonatocerus group.

Nearctic hosts. Hemiptera : Cercopidae .

Important reference. Huber (2012).

References

Haliday, A. H. (1833 a) Essay on the classification of the parasitic Hymenoptera of Britain, which correspond with the Ichneumones minuti of Linnaeus. Entomological Magazine, 1 (3), 259 - 276.

Haliday, A. H. (1833 b) An essay on the classification of the parasitic Hymenoptera, etc. (Continued). Entomological Magazine, 1 (4), 333 - 350.

Huber, J. T. (2012) Revision of Ooctonus (Hymenoptera: Mymaridae) in the Nearctic region. Journal of the Entomological Society of Ontario, 143, 15 - 105.

Peck, O. (1951) Superfamily Chalcidoidea. In: Muesebeck, C. F. W., Krombein, K. V. & Townes, H. K. (Eds.), Hymenoptera of America north of Mexico-synoptic catalog. United States Department of Agriculture, Agriculture Monograph, 2, pp. 410 - 594.

Walker, F. (1846) VIII. - Descriptions of the Mymaridae. The Annals and Magazine of Natural History, Series 1, 18 (116), 49 - 54 + viii (Errata and Addenda). https: // doi. org / 10.1080 / 037454809494390

Westwood, J. O. (1839) Appendix: Synopsis of the genera of British insects. In: Introduction to the modern classification of insects; founded on the natural habits and corresponding organisation of the different families. Vol. 2. Longman, Orme, Brown, Green, and Longmans, London, pp. 1 - 158 pp.

Figures

FIGURE 715. Ooctonus vulgatus Haliday, habitus. Canada, British Columbia, Victoria vicinity, 48°32'N 123°30'W, 248 m, 4–18.ix.2005, N. Winchester, rocky knoll, intact Manzanita/Arbutus. Scale bar=1000 μm.

FIGURES 716–720. Ooctonus spp., head except 720. 716, O. readae Huber, anterior; 717, O. readae Huber, posterior; 718a, O. hemipterus Haliday, lateral; 718b, O. hemipterus Haliday, lateral (internal) showing ocular apodeme; 719, O. occidentalis Whittaker, dorsal; 720, O. readae Huber, antenna. Scale bars=100 μm.

FIGURES 721–723. Ooctonus spp. 721, O. readae Huber, male antenna; 722, O. readae Huber, wings; 723, O. boltei Huber, mesosoma, dorsal. Scale bars=200 μm.

FIGURES 724–729. Ooctonus spp. 724, O. hemipterus Haliday, mesosoma, lateral; 725, O. silvensis Girault, ovipositor seen through gaster; 726, O. canadensis Whittaker, metasoma, dorsal; 727, O. readae Huber, metasoma, lateral; 728, O. canadensis Whittaker, genitalia seen through gaster; 729, O. silvensis Girault, genitalia seen through gaster. Scale bars 724–727=200 μm; 728, 729=100 μm;

FIGURES 730–735. Ooctonus hemipterus Haliday, head. 730, anterior; 731, posterior; 732, male, lateral; 733, dorsal; 734, ventral; 735, mouthparts. Scale bars=50 μm.

FIGURES 736–742. Ooctonus hemipterus Haliday, mesosoma, except 741, 742. 736, dorsal; 737, lateral; 738, ventral; 739, anterior; 740, metanotum + propodeum; 741, male petiole, dorsal; 742, petiole, lateral. Scale bars=50 μm.

FIGURES 743–749. Ooctonus hemipterus Haliday, male metasoma. 743, dorsal; 744, lateral; 745, ventral; 746, apex of gaster, dorsal; 747, apex of gaster, lateral; 748, apex of gaster, ventral; 749, apex of gaster, posterior. Scale bars: 743–745=50 μm; 746–749=20 μm.

FIGURES 730–735. Ooctonus hemipterus Haliday, head. 730, anterior; 731, posterior; 732, male, lateral; 733, dorsal; 734, ventral; 735, mouthparts. Scale bars=50 μm.

FIGURES 721–723. Ooctonus spp. 721, O. readae Huber, male antenna; 722, O. readae Huber, wings; 723, O. boltei Huber, mesosoma, dorsal. Scale bars=200 μm.