LARVAL FORMS OF COLEOPTERA 



Plate 122 



A. 

 B. 



C. 

 D. 

 E. 



F. 



G. 

 H. 

 I. 

 J. 



K. 

 L. 

 M. 

 X. 

 0. 

 P. 



Q- 



R. 



S. 



C urv iili(jn idae-L lsso)']i opirin ae 

 Lissorhoptrus simplex Say 



T. 

 U. 

 V. 



Head. Lateral view. 



Larva, showing a pair of hook- 

 shaped spiracles on the back of 

 second to seventh abdominal 

 segments. Lateral view. 



Apex of dorsal spiraeular hook. 



Epipharynx. 



A pair of spiraeular liooks. Dor- 

 sal view. 



Eighth abdominal spii'acle; not 

 freely projecting. 



Antenna. 



Left mandible. Ventral view. 



Right maxilla. Buccal view. 



Spiraeular hooks ; tracheal branch 

 to spiracle (sptr) ; tracheal stem 

 and closing apparatus. 



Head. Dorsal view. 



Head. Ventral view. 



Ventral mouthparts. 



Hypopharyngeal region. 



Cocoon with mud cover removed. 



Epidermis from which the cocoon 

 is exudated. 



Larva. Dorsal view. 



Two cocoons ; one with nnid cover 

 removed from upper half. 



Cocoon opened to show the larva 

 in position and completely 

 clean after having exudated the 

 cocoon ; notice the breathing 

 hole gnawn into the submerged 

 rice stem. 



Hole in stem and cocoon. 



Hole on side of stem. 



Cocoon showing breathing (bh) 

 and emergence (eh) holes. 



330 



