The Basal Sclerites of the Leg in Insects. 



25 



pst Pseudo-trochantin 



j)t Posttrochantin, or posterior portion of trochantin 



2)Ui Pleiirotrochantin , or fusion product of lower portion of episternum, 



etc. with the trochantin. It is also called katepisternum 

 ptr Proximal trochanter 

 sc Sternocoxale 

 si Sternal lobe (lobisternite) 

 spl Sternopleurite 

 st Sternum 



stg Styliform appendage of coxa 

 tn Trochantin 



tnl Trochantinelle, or detached distal portion of trochantin 

 tr Trochanter 

 ve Veracoxa, or anterior region of coxa 



Plate 1. 



Fig. 1. Prothorax of a Blattid {Periplaneta), lateral view. 



Fig. 2. Mesothorax of a Blattid (Ischnoptera), lateral view. 



Fig. 3. Mesothorax of a Termite (Termes), lateral view. 



Fig. 4. Mesothorax and metathorax of a Panorpid (Panorpa), 

 lateral view. 



Fig. 5. Metathorax of a Tricliopteron (Halesus), lateral view. 



Fig. 6. Mesothorax of a Trichopteron (Halesus), lateral view. 



Fig. 7. Metathorax of a Lepidopteron (Anosia), lateral view. 



Fig. 8. Mesothorax of a Neuropteron (Corydalis), lateral view. 



Plate 2. 

 Fig. 9. Mesothorax of a Neuropteron (Corydalis), ventral view. 



Fig. 10. 



Fig. 11. 

 lateral view. 



Fig. 12. 



Fig. 13. 



Fig. 14. 

 ral view. 



Fig. 15. 



of parts, lateral views. 



Mesothorax of a Cicada (Cicada), lateral view. 

 Mesothorax and metathorax of a Syrphid (Spilomyia), 



Metathorax of a Cicada (Cicada), lateral view. 

 Mesothorax of a Neuropteron (Mantispa), lateral view. 

 Mesothorax and metathorax of a Tipulid (Tipida) , late- 



Mesothoracic coxa of a Tipulid spread out to show relation 



Plate 3. 



Fig. 16. Metathorax of an Acridid (Rhomalea), ventral view. 

 Fig. 17. Mesothorax of an Acridid (Rhomalea), ventral view. 



