PLATE III. — To Illustrate The Anatomy op the Pupa (after Hurst). 



Pig. 1. — Side view of the male pupa. 



Fig. 2. — Ventral view of the female pupa, partly extended. 



Figs. 3-6. — Successive stages in the metamorphosis of the epitheliuin of the 

 hinder part of the stomach. 



Fig. 7. — Sagittal section of a very young female pupa. A?it. antennae ; Ao. 

 aorta ; At. respiratory syphon ; B. buccal chamber ; CG. cerebral 

 ganglion ; D. gastric pouch ; F. caudal fin ; Fe^. femur of first leg ; 

 G. ganglia ; Gti. outgrowth of " ninth " segment, within w^hich the 

 gonapophyses develop ; Hr. balancer ; H. head ; Ht. heart ; In. intes- 

 tine ; Lb. labium ; Lbi: labrum ; M. Malphigian tubule ; M.Ap. its 

 opening into the intestine ; MS. mesosternum ; Mt. metasternum ; 

 Mx. maxilla (first) ; JJxp. its palp ; NG. nerve commisures and ventral 

 cord ; Oc. ocellus ; Od. medium oviduct ; Op. compound eye ; P. pro- 

 sternum ; E. rectum ; S. aperture of salivary duct ; SG. subceso- 

 phageal ganglion ; Si. larval respiratory syphon introverted into the 

 eighth segment ; Sp. spermatheca ; St. stomach ; TaK To' proximal 

 joints of the tarsi ; Ti' — ^ tibise ; Tr. trachea ; W. wing ; I. II. III. &c., 

 first to eighth segments of the abdomen. 



After the Plate in the late Mr. Hurst's Paper in the Mem. Owens Col. , 

 somewhat reduced. 



