17 



Ms. Mosonotum. 



Mt. Metanotum. 



O. Ocelli. 



Op. Opening in which a muscle is attached to the base of 



the mandible. 



OS. Oblique suture near the end of the sixth segment. 



PF. Posterior fringe, composed of long, spiral hairs. 



Pt. Prothorax. 



R. Reticulate markings, which are most prominent upon 



the jjosterior part of the dorsal surface of the head. 



RV. Right lower valve of the ovipositor. 



S. Stigma. 



SC. Thick, clear sense cones. 



Sc. Scale of wing. 



Sp. Spines upon the veins of the fore wing. 



St. Style of the antenna. 



Su. Sutnre between the tirst and secontl tarsal segments. 



Ta. Tarsus. 



TE. Thickened edge of the ninth abdominal segment. 



Th. Teeth upon the ovipositor. 



Ti. Tibia. 



Tr. Trochanter. 



UV. Tip of right upper valve of the ovipositor. 



WE. Wings extended in position for flight. 



WF. AVings folded at rest. 



WS. Wing sheath. 



7. Seventh a'odominal segiucnt. 



8. Eighth abdominal segment. 



9. Nintii abdominal segment. 



10. Tenth abdominal se<rment. 



