436 U. S. NATIONAL MUSEUM BULLETIN 216 part 3 



first trochanter measured at its longest place on upper edge) 5 



Metapleurum and propodeum largely or entirely fulvous, or if black then not 

 marked with white; second hind trochanter 0.12 to 0.3 as long as first hind 

 trochanter 6 



5. Second hind trochanter about 0.5 as long as first hind trochanter; hind basi- 



tarsus white with its basal 0.3 ± fuscous 10. angustus Townes 



Second hind trochanter about 1.2 as long as first hind trochanter; hind basi- 

 tarsus entirely brown 11. longicaudls Cresson 



6. Areolet about 1.0 as wide as high; mesopleurum mostly black or fuscous with a 



broad, oblique yellow stripe (fig. 337,d); clypeus broad, its apical margin 



almost straight 9. eisenii Ashmead 



Areolet about 1.3 to 2.0 as wide as high; mesopleurum entirely fulvous to 

 entirely black, without an oblique yellow stripe; clypeus only moderately 

 wide, its apical margin arcuate 7 



7. Apical 0.3 or less of hind basitarsus white, the rest fuscous, usually the entire 



basitarsus fuscous; flagellum usually entirely black, sometimes with a short 



white median stripe above 8 



Apical 0.5 to 0.8 of liind basitarsus white, the rest fuscous; flagellum nearly 

 always with a median white dorsal stripe or a pale band 9 



8. Upper end of prepectal carina sharp to about upper 0.4 of hind margin of 



pronotum, not ending in a white callus but sometimes surrounded by whitish; 



postscutellum black, or rarely white 5. gracilis Cresson 



Upper end of prepectal carina sharp to about lower 0.3 of hind margin of 

 pronotum, ending at or becoming obsolescent in a white elliptic callus; 

 postscuteUum white 7. sicarius, new species 



9. Postscutellum black; propodeum largely or entirely black basad of its basal 



carina 6. clitellatus, new species 



Postscutellum white; propodeum usually mostly or entirely fulvous basad of its 

 basal carina, but sometimes entirely black .... 8. thoracicus Cresson 



FEMALES 



1. Ovipositor sheath about 3.2 as long as front wing; head and thorax entirely 



fulvous; second hind trochanter about 1.2 as long as first hind trochanter 

 (both trochanters measured along dorsal edge, where second trochanter is 



shortest and first trochanter longest) 11. longicaudis Cresson 



Ovipositor sheath about 0.55 to 0.93 as long as front wing; head and thorax 

 (at least the pronotum) partly or entirely black; second hind trochanter 

 about 0.1 to 0.5 as long as first hind trochanter 2 



2. Hind coxa entirely black; propodeum and metapleurum entirely black . 3 

 Hind coxa entirely or largely fulvous; propodeum and metapleurum entirely 



fulvous or partly black, or black and white, or rarely entirely black . 6 



3. Ovipositor about 3.6 as long from nodus to apex as it is deep at nodus; pre- 



pectal carina distinct and sharp up to subtegular ridge; temple moderately 

 convex; second tergite mat, with small punctures that are separated by 



about 5.0 their diameter 3. temporalis, new species 



Ovipositor about 5.5 to 6.5 as long from nodus to apex as it is deep at nodus; 

 prepectal carina obsolescent dorsaUy, not distinct to the subtegular 

 ridge 4 



4. Punctures on second tergite moderately small, separated by about 1.5 their 



diameter 1. albinotatus Gravenhorst 



Punctures on second tergite very small, separated by about 4 or 5 times 

 their diameter 5 



