44 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 56 



PLATE 4A 



Fig. 9. Pterale A. (Magnified 80 diameters. Photographed with Zeiss 

 achromat A, Ocular 4.) 



an, Processus analis.' ro, Processus rostralis. 



du, Processus dupHcatus. 



Fig. 10. Cross-section of the Mesothorax. (Magnified 10 diameters. Pho- 

 tographed with Zeiss achromat A, Ocular 2.) 



dvll, Musculus dorso-ventralis secundus. 

 mm, Musculus dorsalis. 



Fig. II. Processus pteralis thoracis V. (Magnified 45 diameters. Photo- 

 graphed with Zeiss achromat A, Ocular 2.) 



I 



