AMERICAN DIPTERA. 



395 



PLATE III. 

 Fig. 1. — Antenna of Stenopogon latipennis. 



PLATE IV. 



Fig. L — Antenna of Laphystia opaca. 



2. — " " Ceraturgus cruciatus. 



3. — " " Ceraturgopsis cornutus. 



4. — " " Nicocles politus. 



5. — " " Willistonina bilineatus. 



6. — " " Holcocephala abdotninalis . 



7. — " " Holopogon. 



8. — • " " Lasiopogon opaculus. 



9.— " " Stichopogon trifasciatus. 



10. — " " Leptogaster pictipes. 



\\. — " " Psilocurus nudiiisculus. 



PLATE V. 



Fig. 



L— Head of Deromyia. 



2. — " " Micostylum. 



3.— 



4.— 



5.— 



6.— 



7.— 



9.- 



Stenopogon. 



Holcocephala. 



Holopogon. 



Laphystia. 



Stichopogon. 



Teracticiis. 



Leptogaster. 



PLATE VI. 



Fig. 1. — Leptogaster badius, 9. enlarged about 3^ X. 

 " 2. — Callinicus calcaneus, $, enlarged about 3 X. 



3. — Deromyia sallei, 9. enlarged about 1| X. 



4. — Microtylum morosum, 9. enlarged about If X. 



5. — -Plesiomina unicolor, 9, enlarged about 2\ X. 

 " 6. — Chrysoceria pictitarsis, enlarged about 3^ X. 



PLATE VII. 

 Fig. 1. — Ceraturgus cruciatus, 9. enlarged about 3 X. 

 2. — Dizonias pilatei, 9. enlarged about 2| X. 

 " Z.— -Willistonina bilineatus, 9, enlarged about 3^ X. 

 4. — Saropogon dispar, ^, enlarged about 2J X. 

 5. — Ospriocerus abdominalis, 9, enlarged about 3 X. 

 Q.^Ceraturgopsis cornutus, 9. enlarged about 2§ X. 



TRANS. AM. ENT. SOC, XXXV. 



SEPTEMBER, 1909 



