NO. 3533 CHALCID WASPS OF GENUS EURYTOMA — BUGBEE 447 



.17-. 19 mm. in length; marginal and postmarginal veins often equal in 



length 18 



Abdomen oval, showing some lateral compression, ninth tergiun variable; 

 marginal vein usually longer than postmarginal 20 



18. Abdomen lightly sculptured and limited on sixth to lower half or less; 



dorsal surface smooth and shiny; sixth segment narrow, averaging about 

 lYia times the length of the fifth; marginal vein longer than post- 

 marginal 51. seminis Bugbee 



Abdomen more or less uniformly reticulated all over; may disappear on 

 dorsoposterior borders of fifth and sixth tergum or cover entire surface; 

 marginal and postmarginal veins most often equal in length; sixth tergum 

 more nearly twice length of fifth 19 



19. Propodeum broad but with a narrow, deep, complete median furrow that 



narrows gradually toward base 52. altifossa, new species 



Propodeum without a median furrow or an indication of one in dorsal 

 one-third only 53. crassa, new species 



20. Sculpturing on sixth abdominal tergum heavy ventrally and extending over 



dorsal surface, either covering entire surface or forming a narrow band 



along anterior margin 21 



Sculpturing on sixth tergum reduced to lower half to one-third or less of 

 surface; dorsal surface smooth and shiny 30 



21. Sixth tergum completely covered with fine reticulations; heavy ventrally, 



becoming lighter dorsally; dorsal valves broad for horizontal length. 



54. terrea Bugbee 



Sixth tergum with closely spaced heavy reticulations ventrally that become 



lighter dorsally and recede toward anterior margin in the form of a narrow 



band 22 



22. Propodeum with a narrow or wide complete median furrow 23 



Propodeum with an incomplete median furrow restricted to upper half or 



less 26 



23. Dorsal valves narrow for horizontal length 24 



Dorsal valves broad for horizontal length 25 



24. Ninth tergvmi elongate and pointed, averaging .29 mm. in length (.20-. 35) ; 



antenna filiform 55. incerta Fullaway 



Ninth tergum short and broad, averaging .16 mm. in length (.13-.19); 

 antenna weakly clavate 56. stigmi Ashmead 



25. Genitalia averages 2.1 mm. in length and .81 mm. in height; median groove 



with a median carina complete to base; ocellocular line about twice 



diameter of lateral ocellus 57. sciromatis Bugbee 



Genitalia averages 1.5 mm. in length (1.4-1.8) and .75 mm. in height 

 (.62-.87); thus the height is about half the length; stylet arch nearer to 

 horizontal plane than an obhque plane; ocellocular fine less than twice 

 the diameter of the lateral ocellus 58. tylodermatis Ashmead 



26. Dorsal valves of female genitalia broad for horizontal length 27 



Dorsal valves narrow for horizontal length 29 



27. Legs with reddish-brown to black infuscation on fore- and hindfemora, rest 



of legs yellow; dorsal valves of female genitalia broad for horizontal 

 length; marginal and postmarginal most often equal in length, averaging 

 .29 mm. (.25-.35) ; marginal vein hncar .... 59. gossypii, new species 

 Legs with black or dark-brown infuscation on femora and tibiae of all 

 legs or lacking on foretibia only; marginal vein broader than postmarginal 

 vein 28 



