Stephanodes, Enock, 1909

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 : 333-334

STEPHANODES Enock, 1909

( Figs 942–978 )

Stephanodes Enock, 1909: 457 . Type species: Stephanodes elegans Enock, 1909 , by monotypy.

Eustephanodes Ogloblin, 1967: 194 . Type species: Eustephanodes missionicus Ogloblin, 1967 , by original designation. Synonymy by Yoshimoto, 1990: 72.

Masonana Yoshimoto, 1990: 63 . Type species: Masonana polynemoides Yoshimoto, 1990 , by monotypy. Synonymy by Huber & Fidalgo, 1997: 34.

Diagnosis. Body length 970–1205 μm. Vertex with large shallow depressions outside each ocellus ( Figs 952 , 955– 958 ); scape with inner surface rasp-like ( Fig. 946 ); mesonotal spiracle much closer to anterior apex of notaulus than to dorsal apex of prepectus ( Fig. 962 ), mesosoma and metasoma smooth ( Figs 961–966 ) and shiny ( Fig. 942 ); fore wing with parastigma slightly elongate ( Fig. 949 ).

Discussion. Among the nine other Nearctic genera of this group ( Acmopolynema , Caraphractus , Cnecomymar , Eustochus , Kalopolynema , Mymar , Neomymar , Palaeoneura , Polynema ), Stephanodes is distinguished by the diagnostic features listed above. As is usual among this group of genera, different features taken alone suggest different relationships among the genera. For example, Stephanodes has faint subantennal sulci ( Figs 943 , 955 ) as, e.g., in Kalopolynema , petiole clearly attached to gs 1 ( Fig. 971 ) as, e.g., in Acmopolynema , and propleura closed ( Figs 963, 965 ) as, e.g., in Polynema (Doriclytus) .

Nearctic hosts. Unknown. Extralimital hosts are Hemiptera : Cicadellidae , Nabidae .

Important reference. Huber & Fidalgo (1997).

Figures

FIGURE 942. Stephanodes septentrionalis Huber, habitus. Canada, Quebec, James Bay hwy, km 221, 10.vi.1985, H. Goulet. Scale bar=1000 μm.

FIGURES 943–946. Stephanodes septentrionalis Huber, head except 946. 943, anterior; 944, posterior; 945a, lateral; 945b, lateral (internal) showing ocular apodeme; 946, antenna. Scale bars=100 μm.

FIGURES 947–949. Stephanodes septentrionalis Huber. 947, mesosoma, dorsal; 948, mesosoma, lateral; 949, wings. Scale bars=100 μm.

FIGURES 950–954. Stephanodes septentrionalis Huber, gaster except 952. 950a, dorsal; 950b, ovipositor seen through gaster; 951, lateral; 952, male head, anterior; 953, genitalia seen through gaster; 954, male, lateral. Scale bars=100 μm.

FIGURES 955–960. Stephanodes sp., head, male except for 958. 955, anterior; 956, posterior; 957, lateral; 958, dorsal; 959, ventral; 960, mouthparts. Scale bars=50 μm.

FIGURES 961–969. Stephanodes sp., mesosoma, except 967–969. 961, dorsal; 962, lateral; 963, ventral; 964, ventral with coxae; 965, anterior; 966, scutellum–propodeum; 967, petiole, dorsal; 968, petiole, lateral; 969, petiole, ventral. Scale bars: 961–966=100 μm; 967–969=50 μm.

FIGURES 970–973. Stephanodes sp., metasoma. 970, male, dorsal; 971, lateral; 972, male, anterior; 973, ventral. Scale bars=100 μm.

FIGURES 974–978. Stephanodes sp., male except 974, apex of gaster except 977. 974, female, lateral; 975, dorsal; 976, lateral; 977, metasoma, posterior; 978, ventral. Scale bars=20 μm.