BY R. 



TILLYARD. 301 



EXPLANATION OF PLATES XVL-XVIL 



. Plate xvi. 



Fig. L — Xannochorl^ta diptero'kh-< ({ . n.g. et sp. ; ( x 84'). 

 Fig. 2. — Xannochoritita holosfigyna S . n.g. et sp.; ( x 85). 

 Fig.8. — Xannoehorista macnfipeiniis 6 , n.g. et sp. ; ( x8^,^). 

 Fig. 4. — Xannochorista ehoraca 9 , n.g. et sp. : ( x 8.^). 



Plate xvii. 



Fig. 5. — Xannovhorista holo.-^fifima , n.g. et sp. : ( x <>?,\ In position of 



rest. 

 Fig. 6. — Nannochorista hotostlgma 6 , n.g. et sp. Antenna; ( x 28). 

 Fig. 7. — Xannochoritifa dipfero'ide,^ 9 , n.g. et sp. Labrnm (//>/•), epipharynx 



(tp), and vestigial mandibles (md); ( x 88). 

 ¥\^.H.^Xaiinochori$ta dlptti-oides 9, n.g. et sp. Maxilhe and labium, 



dissected oif together and viewed from ventral side; //, inner lobes 



of maxillie; //>, labellum: m, mentum; m.vp, maxillary palpi; 



xin, siibmentum; s/, stipes; ( x 83). 

 Fig.n. — Xannochorista diptero'ides J , n.g. et sp. Maxilla dissected oft'; 



c, cardo; il, inner lobe; m.vp, maxillary palp; no. sense-organ on 



third joint of palp; sf, stipes; ( x 83). 

 Fig. 10. — Conpling-apparatus at base of wings of Xannochorista : fi\ frenu- 

 lum; Fo\ forewing; ///'", hmdwing; jh, jugal bristle; ( x 83). 

 Fig. 11. — Xmxnochorhia dipteroides, n.g. et sp. Dorsal view of end of 



male abdomen, cleared and mounted in Canada Balsam; r, eerci; 



i\ valves; 8-10, abdominal segments; { x28). 

 Fig. 12. — Xannochorista holostirpna, n.g. et sp. Lateral view of end of 



female abdomen, cleared and mounted in Canada Balsam; c, eerci; 



(f/j, gonapophyses; 8- 10, abdominal segments; ( x28). 



28 



