Mymaridae

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 : 10

Key to Nearctic genera of Mymaridae . Females.

1 Wings short, not extending beyond apex of gaster, or absent................................................... 2

- Wings fully developed, extending beyond apex of gaster...................................................... 4

2(1) Tarsi 4-segmented.................................................................. Cleruchus Enock , part

- Tarsi 5-segmented.................................................................................... 3

3(2) Wings and ocelli absent ( Fig. 274 )....................................................... Chrysoctonus Mathot Fauna : 1 described species. Distribution: eastern Nearctic, mainly in bogs.

- Wings present, though sometimes minute and scarcely visible, and ocelli present.......... Ooctonus hemipterus Haliday

4(1) Tarsi 5-segmented.................................................................................... 5

- Tarsi 4-segmented................................................................................... 19

5(4) Funicle 8-segmented.................................................................................. 6

- Funicle at most 7-segmented........................................................................... 10

6(5) Face with subantennal sulcus extending from each torulus to mouth margin ( Fig. 453 ); pronotum longitudinally divided medially, the two lobes either abutting ( Fig. 445 ) or separated by membranous area ( Fig. 551 ); propodeum without carinae ( Fig. 458 ) or with 2 longitudinal submedian sulci or carinae, sometimes with additional lines between them ( Fig. 445 ); metasoma with petiole at most about 2× as long as wide but usually much shorter and, in lateral view, with gt 1 at most only slightly longer than gt 2; fore wing with hypochaeta about midway between proximal and distal macrochaetae ( Figs 340 , 450 , 464 , 554 )....... 7

Figures

FIGURE 340. Cosmocomoidea capitata (Gahan), habitus. USA, Oregon (locality, date and collector not recorded, USNM specimen). Scale bar=500 μm.

FIGURES 274, 275. Chrysoctonus sp., habitus. USA, Florida, Alachua Co., Gainesville, AEI, 29°35'53"N 82°21'54"W, 8– 25.x.2003, D.B. Wahl. 274, female; 275, male. Scale bars=500 μm.

FIGURES 453–457. Gonatocerus sp. 453, head, anterior; 454, head, posterior; 455a, head, lateral; 455b, head, lateral (internal) showing ocular apodeme; 456; head, dorsal; 457, antenna. Scale bars=100 μm.

FIGURES 445, 446. Gastrogonatocerus sp., mesosoma. 445, dorsal; 446, lateral. Scale bars=100 μm.

FIGURES 551, 552. Lymaenon spp., mesosoma. 551, L. pygmaeus (Girault), female, dorsal; 552, L. ornatus (Gahan), male, lateral. Scale bars=100 μm.

FIGURES 458, 459. Gonatocerus sp., mesosoma. 458, dorsal; 459, lateral. Scale bars=200 μm.

FIGURES 449–451. Gastrogonatocerus sp., male. 449, antenna; 450, wings; 451, genitalia, dorsal, with apical tergum and cerci flattened on right of genitalia. Scale bars: 449, 450=200 μm; 451=100 μm.

FIGURES 463–465. Gonatocerus sp., male. 463, antenna; 464, wings; 465a, metasoma, dorsal; 465b, genitalia seen through gaster. Scale bars=200 μm.

FIGURES 553, 554. Lymaenon pygmaeus (Girault). 553, mesosoma, ventral; 554, wings. Scale bars=100 μm.