255a (254b).    Abdominal petiole with distinct 2 segments and very thin; fore
wing reticulate (=
 net-like); both fore and hind wings narrow at
base into a linear stalk (Fig.A); mandibles
 with teeth exodont (extended outwards);
antennal sockets closer to eyes than to each
 other (rare in North American
collections)................................….............….........Mymerommatidae
 
             Please CLICK on picture to
enlarge
 
                                                       A
             
255b.    Abdominal petiole with 1 segment or none; fore wing membrane
smooth, hind wing
 membrane not reaching base, but reduced to a
linear stalk formed by submarginal vein
 (Fig.A); frons with H-shaped impressed lines (Fig.A ); antennal
sockets much closer to
 eyes than to each other; egg parasites
(common in North American collections)..............
 (Figs.B-H)..........................................................................................................…….............Mymaridae
 
                          Please CLICK on pictures
to enlarge
 
                                           A                                                          B                                    C
 
             D                                        E                                             F                                       G