222 BULLETIN" 66, UNITED STATES NATIONAL MUSEUM. 



Page. 



Fig. 5. Apractelytra schwarzi, wing 152 



6. Apractelytra schwarzi, oedeagus 152 



7. Ophthalmochlus duryi, a and b, oedeagus, lateral and dorsal views 142 



8. Ophthalmochlus duryi, metathorax, dorsal view 142 



9. Homilops westwoodi, metathorax, dorsal view (after Templeton) 146 



10. Homilops ivestwoodi, mouth parts, ventral view (after Templeton) 146 



11. Eupathocera lugubris, metathorax, dorsal view 143 



12. Eupathocera lugubris, oedeagus 143 



13. Ophthalmochlus duryi, mouth parts 142 



14. Eupathocera lugubris, mouth parts 143 



Drawings by the author. 



Plate 11. 



Family Xenid.e (females). 



Fig. 1 . Monobiaphila bishoppi, cephalothorax 139 



2. Leionotoxenos hooker i, cephalothorax, containing triungulinide 139 



3. Leionotoxenos jonesi, cephalothorax 138 



4. Leionotoxenos louisianse, cephalothorax, containing triungulinids 138 



5. Sceliphronechthrus fasciati, cephalothorax 142 



6. Homilops bishoppi, cephalothorax 146 



7. Eupathocera pruinosae, cephalothorax 143 



8. Homilops ashmeadi, cephalothorax, containing triungulinids 146 



Illustrations from photomicrographs by E. S. Tucker and the author, 



and retouched by the latter. 



Plate 12. 



Family Xeniixu (females). 



Fig. 1. Halictoxenos craivfordi, cephalothorax 149 



2 . Halictoxenos grsenicheri, cephalothorax 150 



3. Halictoxenos sparsi, cephalothorax 150 



4. Halictoxenos versati, cephalothorax 150 



5. Halictoxenos (Halictophilus) manilse, cephalothorax 151 



6. Halictoxenos (Halictophilus) robbii, cephalothorax 151 



7. Crawfordia pulvinipes, cephalothorax 153 



8. Crawfordia cockerelli, cephalothorax 155 



Illustrations from photomicrographs made by E. S. Tucker and H. S. 



Barber, and retouched by the author. 



Plate 13. 

 Family Xenll\e (males). 



Fig. 1. Halictoxenos jonesi, metathorax, dorsal view 149 



2. Halictoxenos jonesi, genitalia 149 



3. Halictoxenos jonesi, mouth parts 149 



4. Crawfordia pulvinipes, wing 153 



5. Crawfordia pulvinipes, a, b, mouth parts 153 



6. Crawfordia pulvinipes, metathorax 153 



7. Crawfordia pulvinipes, genitalia 153 



Family Halictophagid^e. 



8. Pentoxocera australensis, metathorax, dorsal view (from Perkins) 158 



9. Pentoxocera australensis, wing (from Perkins) 158 



10. Pentoxocera australensis, face (from Perkins) 158 



