280 The Ut.'iversity Science Bulletin. 



PLATE XXVIII. 



1. Kolla hartii (Ball). 



2. Kolla geometrica (Signoret). 



3. Kolla bifida (Say). 



4. Graphocephala coccinea (Forster), 



5. Gypona bimaculata Spangberg. 



6. Gypona angulata Spangberg. 



7. Gypona pectoralis Spangberg. 



8. Gypona octo-lineata (Say). 



