EXPLANATION OF PLATES. 

 Plate 1. 



Fig. 1. General view of body from side (bind leg removed) L. affinis, female. 



2. Front and hing wing showing veins. L. affinis, female. 



3. Abdomen dissected to show tergites 1-7 inchisive. L. affinis, female. 



4. Antenna, showing segmentation. L. affinis, male. 



Plate 2. 



Fig. .5. Head of Leucospis slossonae (front view). 



6. Head of Leucospis affinis (front view). 



7. Head of Epexoclaenoides pyriformis (front view). 



8. Mouthparts of Leucospis affinis, from front. 



9. Hind femur of Leucospis opalescens, from side. 



10. Hind femur of Leucospis slossonae, from side. 



11. Hind femur of Leucospis fuUginosa, from side. 



12. Hind femur of Leucospis affinis, from side. 



13. Hind femur of Epexoclaenoides pyrifonnis, from side. 



Plate 3. 



Fig. 14. Abdomen in side view of Leucospis slosso^iae. 



15. Abdomen in side view of Leucospis gigas. 



16. Abdomen in side view of Leucospis dorsigera. 



17. Abdomen in side view of Leucospis cayennensis. 



18. Abdomen in side view of Leucospis Uguetina. 



19. Abdomen in side view of Leucospis indiensis. 



20. Abdomen (a) in side view and (&) from above of Epexoclaenoides 



pyriformis. 



21. Abdomen in side view of Leucospis brevicauda. 



Plate 4. 



Fig. 22. Terminal segments of Leucospis affinis with ovipositor and its ap- 

 pendages. 



23. Front, middle and hind, tarsi of Leucospis affinis, showing tibial spines. 



24. Hind coxae of Leucospis cayennensis and Leucospis affinis. 



25. Sternal plate of (male) Leucospis affinis. 



26. Abdomen of (male) Leucospis affinis in side view. 



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