AKT. 15«. REVISION OF SUBFAMILY PLATYGASTERINAE FOUTS. 27 



26. Notauli complete 27. 



Notauli absent 25. diplosidis ( Ashmead) . 



Notauli partially complete 33. 



27. Mesonotum separated from the scutellum by a narrow incision; notauli parallel 



or nearly so 26. error Fitch. 



Mesonotum separated from the scutellum by a furrow; notauli converging pos- 

 teriorly 28. 



28. Abdomen in female mors than twice as long as the head and thorax united, very 



flat 27. compressiventris (Ashmead). 



Abdomen in female not twice as long as the head and thorax united 29. 



29. Females 30. 



Males 32. 



30. Antennae very long, the flagellum longer than the thorax. 28. filicornis (Ashmead). 

 Antennae much shorter, the flagellum shorter than the thorax 31. 



31. Abdomen not more than twice as long as wide at apex of second tergite. 



29. coloradensis (Ashmead). 

 Abdomen distinctly more than twice as long as wide 30. californica (Ashmead). 



32. Fourth antennae joint viewed laterally about as wide as the third, not much 



flattened and hardly wider apically than basally. 29. coloradensis (Ashmead). 

 Fourth antennal joint two or three times as wide as the third, broad and flat- 

 tened, slightly concave outwardly, much wider apically than basally. 



30. californica (Ashmead). 



33. Vertex angularly produced over the eyes 34. 



Vertex not produced over the eyes 37. 



34. Ocellar triangle shagreened, not distinctly striate and never perfectly smooth. 35. 

 Ocellar triangle not shagreened, either stirate or smooth 36. 



35. Projection of vertex short, rounded, extending very slightly over the eye margin 



at the middle of its upper edge 31. solidaginis (Ashmead). 



Projection of vertex, compartively long, more acutely produced, extending over 

 the eye margin at its posterior edge 32. pluto (Ashmead). 



36. Ocellar triangle smooth; head two and one-half times as wide as long; thorax 



less than one and one-half times as long as wide. . . 33. utahensls (Ashmead). 

 Ocellar triangle striate or at least never perfectly smooth, approaching the latter 

 condition in the male; head about twice as wide as long; thorax one and one- 

 half times as wide as long 34. striaticeps (Ashmead). 



37. Face above middle of ej^es and below anterior ocellus, especially on the sides, 



distinctly and extensively, though often very linely, striate or aciculate. . 38. 

 Face in part mentioned not distinctly striate or aciculate 67. 



38. Head less than twice as wide as long; frons coarsely transversely striate; first 



and second tergites not striate 35. vernalis (Myers). 



Head at least twice as wide as long; frons less coarsely striate; first and second 

 tergites striate, the second never entirely so 39. 



39. Females 40. 



Males 53. 



40. Fifth tergite shagreened, aciculate, or striate longitudinally 41. 



Fifth tergite not shagreened, aciculate or striate 43. 



41. Fifth tergite longitudinally striate or aciculate; seventh and eighth antennal 



joints longer than wide 42. 



Fifth tergite strongly shagreened, seventh and eighth antennal joints wider than 

 long 36. viticola (Ashmead). 



42. Fifth tergite slightly longer than the fourth 37. leguminicolae Fouts. 



Fifth tergite nearly twice the length of the fourth. . . 38. lupinicola (Ashmead). 



