PLATE 11. 



Pontogenia curva Chamberlin. 



Figures 1, 2. 



1. — Distal end of more slender ventral seta from middle region of body. X 281. 



2. — Beginning of serrate portion of fine bristle of anterior region showing teeth. X 1075. 



Laetmonice wyvillei Mcintosh. 

 Figure 3. 

 3. — Distal end of dorsal seta showing supplementary teeth below main series (Sta. 4675). X 189. 



Panthalis panamensis Chamberlin. 



Figures 4-8. 



4. — Anterior end, dorsal view, showing protruded proboscis (left elytra in outline; first two right 



elytra removed). X 18. 

 5. — Tip of ventral seta of second setigerous somite. X 415. 

 6. — Distal end of median seta, second setigerous somite. X 281. 

 7. — Distal end of dorsal seta, extreme apex broken off. X 1036. 

 8. — Distal end of finer dorsal seta. X 1036. 



