STUDIES IN THE FOSSOIIIAL WASPS. 727 



Key to the Species of Anthobosea. 



Females. 



1. Species from the Old World 2. 



South- American species 23. 



2. Australian species .3. 



African and Arabian species 16. 



3. Tarsal ungues with a lobe at the base either rounded 



or pointed 4. 



Tarsal ungues without a basal lobe, deejily bifid 14. 



4. Radial cell pointed at the apex 5. 



Radial cell blunt at the apex 6. 



5. Pubescence black, calcaria black, abdomen wholly 



black A. austral is Sichel. 



Pubescence whitish, calcaria white, abdomen usually 

 with a yellow spot on each side of the third dorsal 

 segment A. signala Sm. 



6. Wings short, the length of the costa of the fore wing 



not exceeding two and a half times the breadth of 

 the mesonotum. Pronotum, median segment, and 

 three basal abdominal segments rufo-testaceous ... A.fastuosa Sm. 

 Wings longer, the length of the costa of the fore 

 wing three times as great as the breailth of the 

 mesonotum. Thorax and abdomen black 7. 



7. Antenna; orange ; stigma about three times as long 



on the costa as broad A.flavicornis Sauss. 



Antennte black or fuscous; stigma scarcely more 



than twice as long on the costa as broad 8. 



8. Legs liright ferruginous 9. 



Legs black, sometimes fusco-ferruginous beneath ... 10. 



9. Second abscissa of the radius no longer than the 



third ; first recurrent nervure received just before 



the middle of the second cubital cell A. cognata Sm. 



Second abscissa of the radius longer than the third; 

 first recurrent nervure received at one-quarter from 

 the base of the second cubital cell A. strandi Turn, 



10. Wings fuscous ; four basal abdominal segments with 



ciliifi of white scale-like hairs 11. 



Wings hyaline or subhyaline; abdominal segments 



without ciliie of scale-like hairs 12. 



11. Pronotum and scutellum strongly punctured A. alhopilosaTnm, 



Pronotum and scutellum sparselj' and very finely 



punctured A. argenteocincta Grib, 



12. Third cubital cell nearly as long on the radius as on 



the cubitus or longer ; first recurrent nervure 

 received slightly beyond the middle of the second 



cubital cell A. anthracina Sm. 



Third cubital cell much shorter on the radius than 

 on the cubitus; first recurrent nervure received 

 well before the middle of the .second cubital cell ... 13. 



13. Front punctured ; legs wholly black ; length 11 mm. A. unicolor iim. 

 Front smooth and shining; legs fusco-ferruginous 



beneath ; length 7 mm A. Icevifrons Sm. 



14. Abdomen black ; second and tliird cubital cells each 



receiving a recurrent nervure 15. 



Abdominal segments 2-4 very broadly rufo-testaceous 

 at the base ; second cubital cell receiving both 

 recurrent nervures A. cli/peata Sm. 



15. Sixth dorsal segment strongly striated at the base; 



radial cell detached from co.sta for half its length . A. nulilipennis Turn. 

 Si.vth dorsal segment punctured : radial cell detached 



from co.sta at extreme apex only A. occipita lis Turn. 



16. Radial cell subacute at apex ; abdomen not marked 



with y (!llowish white 17. 



Radial cell broadly rounded or narrowly truncate at 



apex; abdomen marked with yellowish white 20, 



