ART. 15«. REVISION OF SUBFAMILY PLATYGASTERINAE FOUTS. 139 



Black locust (collected on leaves). 

 Sactogaster anomaliventris Ashmead, 



Catalpa (collected on leaves). 

 Leptacis pallipes Fonts. 



Cercis canadensis Linnaeus (collected on leaves). 

 Leptacis gahani Fouts. 



Grass (collected on leaves). 

 Platygaster websteri Fouts, 



Hickory (collected on leaves). 

 Eritrissomerus parvus Fouts. 



Liriodendron tulipifera Linnaeus (collected on leaves). 

 Platygaster marylandica Fouts. 



Milkweed (collected on leaves and flower buds). 

 Leptacis pennsylvanica Fouts, 



Mulberry (collected on leaves), 

 Sactrogaster mucronata Fouts. 



Oak (collected on stump). 

 Leptacis hopkinsi Crawford and Bradley. 

 Leptacis bradleyi Fouts. 



Picea engelmanni (reared from cones) , 

 Platygaster liu:ida Fouts, 



Pinus lambertiana (reared from cones). 

 Platygaster rohiveri Fouts. 



Populus (collected on leaves). 

 Sactogaster anomaliventris Ashmead. 



'Tilia americana Linnaeus (collected on leaves). 

 Leptacis globata Fouts. 



Wild cherry (collected on leaves), 

 Sactogaster anomaliventris Ashmead, 



Willow (reared from gall), 

 Isocybus canadensis Provancher. 



EXPLANATION OF PLATE. 



Fig. 1. Antenna, oi Leptacis striatifrons ABhrnead. Female. 



2. Antenna of Leptacis maculipcs. Female. 



3. Antenna of Leptacis minuta. Female, 



4. Antenna of Leptacis pennsylvanica Fouts. Female. 



5. Antenna of Zeptam Zon^i/jes Ashmead. Male. 



6. Antenna of ieptaas ammcana Ashmead. Female. 



7. Antenna of Leptacis gahani Fouts. Female. 



8. Antenna of Leptacis gahani, Fouts. Male. 



9. Antenna of Leptacis rugiceps (Ashmead). Male, 



10. Antenna of Leptacis longiventris Ashmead, Female. 



11. Antenna of Zyepiam_/?fmcorms Ashmead. Female. 



12. Antenna of Leptacis globata Fouts. Female. 



13. Antenna of Leptacis globata Fouts. Male, 



14. Antenna of Leptacis incerta Ashmead, Female. 



15. Antenna of Lepfaa's i«erm is Ashmead. Female. 



16. Antenna of Leptacis aciculata Fouts. Female. 



17. Antenna of Leptacis aciculata. Fouts. Male. 



18. Antenna of Leptacis rufiscapa Ashmead, Female, 



19. Antenna of Leptacis rufiscapa Ashmead. Male. 



20. Antenna of Leptacis floridana Ashmead, Male. 



21. Antenna of Lepiacis pu6fi5C€?!s Ashmead, Male. 



