[ 42 1 



Stemmata, or Crown, are threc 

 fmooth hemifpheric dots, placed gene- 

 rally on the top of the head, as iil moft 

 6f the hymenoptera* and others ; the 

 name was firfl introduced by Linnseus. 



* * Truncus, the Trunk, is that 

 part which comprehends the breaft or 

 thorax ; it is rituated between the head 

 and abdomen, and has the lers infert- 

 ed into it, that its parts may be dif- 

 tinctly determined ; it is divided inta 

 1'horax^ Scutellum, and Sienium. 



Thorax, the Thorax, (plate i. c.) is 

 the back part of the breaft ; it is veiy 

 various in its iliape, and is called Den- 

 tatus, when its fldes are armed with 

 pomts ; Spkofis, when its back is fur- 

 nifhcdwith them, as trj the cerambyx ; 

 and Marginatus, having its margin la- 

 terally dilated, asin the filpha and caf- 

 fida. . 



Scntellum, 



