Ooctonus, Haliday, 1833

Triapitsyn, Serguei V., 2010, Revision of the Palaearctic species and review of the Oriental species of Ooctonus (Hymenoptera: Mymaridae), with notes on extralimital taxa 2381, Zootaxa 2381 (1), pp. 1-74 : 14

Key to species of Ooctonus in the Palaearctic region (females)

1 Micropterous (Figs 12, 13), forewing not extending beyond apex of gaster ...................... O. hemipterus Haliday

– Macropterous: wings normal, forewing extending beyond apex of gaster ........................................................... 2

2(1) Metanotum and propodeum with reticulate sculpture (Figs 10, 11); forewing rounded apically ( Fig. 14 ) ............ ............................................................................................................................................. O. hemipterus Haliday

– Metanotum and propodeum without reticulate sculpture; forewing at least slightly truncate apically ................ 3

3(2) Funicle with mps on F7 and F8 only ..................................................................................................................... 4

– Funicle with mps on other segments in addition to F7 and F8 ............................................................................. 5

4(3) Midlobe of mesoscutum with median groove, the groove sometimes very short at posterior margin of mesoscutum or extending about 0.5x length of mesoscutum; posterior scutellum reticulate ( Fig. 67 ) ...... O. saturn sp. n.

– Midlobe of mesoscutum without median groove ( Fig. 107 ); posterior scutellum mostly smooth except for obscure sculpture at lateral borders ( Fig. 111 ) and sometimes at anterior margin ( Fig. 108 ). O. vulgatus Haliday

5(3) Clava with 8 mps .................................................................................................................................................. 6

– Clava with 7 mps .................................................................................................................................................. 7

6(5) Funicle with 1 mps on F3 of at least one antenna; ovipositor 1.2–1.4x length of metatibia and exserted beyond apex of gaster by 0.08–0.16x own length ................................................................................ O. lokomotiv sp. n.

– Funicle without mps on F3 of either antenna; ovipositor shorter, 1.0–1.2x length of metatibia, and barely exserted beyond apex of gaster, by less than 0.07x own length ............................................... O. insignis Haliday

7(5) Midlobe of mesoscutum with median groove, but varying in length from very short, rarely inconspicuous groove at posterior margin of mesoscutum to extending almost 0.7x length of mesoscutum .............................. 8

– Midlobe of mesoscutum without median groove ............................................................................................... 10

8(7) Propodeum with lateral carina split anteriorly, each forming broadly Y-shaped carina not extending to anterior margin ( Figs 59 , 61 ) .................................................................................................................. O. orientalis Doutt

– Propodeum with lateral carinae entire, not split anteriorly, and extending to or almost to anterior margin ......... 9

9(8) Funicle without mps on F4 ........................................................................................................... O. spartak sp. n.

– Funicle with 1 or 2 mps on F4 ................................................................................................... O. tretiakovi sp. n.

10(7) Funicle without mps on F6 ( Fig. 38 ) ......................................................................................... O. notatus Walker

– Funicle with 1 or 2 mps on F6 or, if not, propodeum with median carina subequal in length or longer than median areole or median carina almost absent or at least not extending to anterior margin ( Fig. 86 ) ............... 11

11(10) Funicle with 2 mps on F4 ( Figs 50, 52 ) ..................................................................................... O. novickyi Soyka

– Funicle without mps on F4 or, if very rarely with 1 mps, then propodeum with median carina subequal in length or longer than median areole or median carina almost absent or at least not extending to anterior margin ( Fig. 86 ) ....................................................................................................................................................................... 12

12(11) Propodeum with median carina subequal in length or longer than median areole or median carina almost absent or at least not extending to anterior margin ( Fig. 86 ) ........................................................... O. sublaevis Foerster

– Propodeum with a large median areole extending to or almost to anterior margin such that median carina almost absent or very short ( Fig. 101 ) ...............................................................................................................O. us sp. n.

Figures

FIGURE 14. Ooctonus hemipterus ♀ (Mamontovka, Moskovskaya oblast’, Russia): wings.

FIGURE 61. Ooctonus orientalis ♀ (Gornotayozhnoye, Primorskiy kray, Russia): mesosoma (scanning electron micrograph).

FIGURE 111. Ooctonus vulgatus ♀ (Box Hill, near Dorking, Surrey, England): scutellum, metanotum, propodeum, and petiole (scanning electron micrograph).

FIGURES 65–71. Ooctonus saturn ♀ (paratypes, Gornotayozhnoye, Primorskiy kray, Russia): 65, antenna; 66, mesosoma; 67, posterior scutellum, metanotum, and propodeum; 68, prosternum and propleura; 69, gaster; 70, forewing; 71, hind wing.

FIGURES 106–110. Ooctonus vulgatus ♀ (106 – Box Hill, near Dorking, Surrey, England; 107, 109, 110 – Kunratice Potok, Prague, Czech Republic; 108 – Artikutza, Navarra, Spain): 106, antenna; 107, mesosoma; 108, posterior scutellum, metanotum, and propodeum; 109, forewing; 110, hind wing.

FIGURES 57–60. Ooctonus orientalis ♀ (Gornotayozhnoye, Primorskiy kray, Russia): 57, antenna; 58, head (frontal view); 59, propodeum; 60, forewing.

FIGURES 38–42. Ooctonus notatus ♀ (Kenfig Pool National Nature Reserve, Wales): 38, antenna; 39, mesosoma; 40, posterior scutellum, metanotum, and propodeum; 41, forewing; 42, hind wing.

FIGURES 84–88. Ooctonus sublaevis ♀ (84, 85, 87, 88 – Mont Rigi, Liège, Belgium; 86 – near Todtinoos, Baden- Württemberg, Germany): 84, antenna; 85, mesosoma; 86, posterior scutellum, metanotum, and propodeum; 87, forewing; 88, hind wing.

FIGURES 52–56. Ooctonus novickyi ♀ (52–54, 56 – Dielsdorf, Zürich, Switzerland; 55 – Eriksberg, Uppsala, Sweden): 52, antenna; 53, mesosoma; 54, posterior scutellum, metanotum, and propodeum; 55, forewing; 56, hind wing.

FIGURES 99–103. Ooctonus us ♀ (holotype): 99, antenna; 100, pronotum and mesoscutum; 101, scutellum, metanotum, and propodeum; 102, forewing; 103, hind wing.