278a (277b).    Body typically elongated (1-2 cm.); head with ridged, raised
areas (crests)
 between eye and scrobal basin; pronotum in
dorsal view about 2X as long as broad, also
 petiole, legs and wings unusually long and
slender (Fig.A); ovipositor protrudes, long;
 antennae with 13 segments without ring
segments; very rare in NorthAmerica).
......................................................................................
Pteromalidae  (Leptofoeninae)....[ also see 294]
 
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                                                        A
 
278b.    Body less elongated (usually less than 1 cm.); head without
ridged, raised area between
 eye and scrobal basin (Fig.A) (commonly collected in North
America)...................................... 279 
 
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                                  A