186 PROCEEDINGS OF THE NATIONAL MUSEUM. yol. 48. 



Genus PELETERIA Desvoidy. 



PELETERIA ROBUSTA Wied. 



One large specimen from foothills July 19. Two males from summit 

 of Eagle Tail Mountain August 3. 



Genus ECHINOMYIA Latreille. 



ECHINOMYIA ALGENS Wied. 



One large female collected on tent in camp, September, by Mr. 

 Wildermuth. 



EXPLANATION OF PLATES. 

 Plate 6. 



Fig. 1. Rhynchiodexia flavotessellata, head. 



2. Zelia wildermuthii, head. 



3. Zelia wildermuthii, abdomen, dorsal view. 



4 . Websteriana costalis, head . 



5. Websteriana costalis, wing, dorsal view. 



Plate 7. 



Fig. 6. Neopales doryphorx, abdomen, lateral view. 



7. Compsilura concinnata, abdomen, lateral view. 



8. Neodichocera tridens, head, lateral view. 



9. Neodichocera tridens, head, front view. 



10. Neodichocera tridens, left middle tibia. 



11. Neodichocera tridens, left hind tibia. 



12. Neodichocera tridens, wing. 



