196 AMERICAN HYMENOPTEKA. 



15. Clypeus with a longitudinal mark or band on disc 16. 



Clypeus yellow, except two cuneiform black marks, lateral face-marks going 



nearly to summit of eyes col«»radensiM Cr., 9 • 



Sides of clyi)eus yellow, small dog-ear marks, iiiargins of abdominal seg- 

 ments testaceous niacillatliM Sid., J . 



Face with only a kidney-shaped yellow mark, partly (sometimes not at all), 

 on (dypeus: legs all dark ; marginal ceil squarely truncate. 



I*aiiiirgiiiii!« reiiiinai'iilatiiM (Ckll.), 9- 



16. Clypeal mark white. Georgia species lapidiis Cr., 9 ■ 



Clypeal mark yellow, lateral and supraclypeal marks i)resent 



aiMlreniforiiiis Sm., 9- ^i^*^ sulsp. rliodopliilnw Ckll., 9- 



17. Black spot at tip of wing, face very broad, supraclypeal and dog-ear marks 



present, lateral marks very small Kilbalpiniis Ckll. 



Legs entirely, and all face below antennre, bright yellow. 



flavipeM-andreiiiforniis Sm., % . 

 Not so, legs not all yellow 18. 



18. Pale color of face confined to clypeus 19. 



Pale color of f-<ice. not confined to clypeus 22. 



19. Clypeus not at all light, sometimes o7ily a spot of yellow. California spe- 



cies I'anurgiiiiis californiciis (Cr.), % . 



Clypeus all light 20. 



20. First recurrent nervure meeting the trausverso-cubital ; clypeus white. 



PaiitirgiiiiiM clypeatus (Cr.), %. 

 First recurrent nervue not meeting the transverso-cubital 21. 



21. Larger, marginal cell longer 1'aiiiii'giiiiis towiiseiidi (Ckll.). 



Smaller, marginal cell shorter Paiiurjfiiius bakeri (Ckll.). 



22. Pale color con lined to clypeus and lateral marks 23. 



Pale color not confined to clypeus and lateral marks 32. 



23. Wings wholly dark fuliginous fraterciiliis Ckll. 



Wings not nearly so dark 24. 



24. Face-marks white 25. 



Face-marks yellow 26. 



25. Face hairy hirsiitifrons Ckll. 



face not hairy Paiiiirgiiiiis pauper (,Cr.). 



(Similar, but face-marks very pale yellow, lateral marks obtuse, face not 

 nearly so hairy as in hirsidifrons albitarsi»i Cr.). 



26. Tubercles dark 27. 



Tubercles light 30. 



27. Basal joints of tarsi all yellow 28. 



Basal joints of anterior and middle tarsi testaceous. 



I'aniirginus parvus (Rob.) 

 Tarsi brownish testaceous 29 



28. Length 7 mm. Panur^inus rugosiis (Eob.) 



Length 5 to 6 mm. PaniirgiiiUK si!«teris (Rob.), var 



Tibiae and tar.si bright yellow C. woloratlensis Cr., % 



29. Larger, face-marks deep yellow, stigma dark ferruginous brown. 



Panurginus iiinuptus Ckll. 

 Smaller, face-marks very pale yellowish, stigma dark fuscous. 



Panurgiuus albitarsis (Cr.). 

 Face-marks lemon-yellow, tegulfe brown (very pale and hyaline iu innup- 

 tus), wings faintly dusky at apex (not at all in inni(ptus). 



picipes Cr. 



