126 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



1. Head visible from above, pronotal front margin straight or emar- 



ginate 2 



Head covered by the arcuate front margin of the pronotum 5 



2. Smaller species (5 mm.), metallic blue, shining, coarsely seriately 



punctured (Florida) Porphyraspis cyanea 



Larger (10 mm. or more) 3 



3. Metallic green with red or yellow elytral spots (tropical) 



Pseudomesomphalia spp. 

 Red or yellow 4 



4. Elytra each with two narrow longitudinal black vittae. (Tro'pical) 



Hilarocassis exclamationis 

 Elytra and pronotum spotted Chelymorpha cassidea 



5. Claws simple : 6 



Claws angularly dilated at base 18 



Claws pectinate 26 



6. Outline deeply and broadly notched between humeri and pronotum, 



expanded margins broad translucent, length about 10 mm. (Florida) 



Eurypepla jamaicensis 

 Outline nearly continuous 7 



7. Size larger (10 mm. or more), form elongate oval 8 



Size smaller, form oval or circular 9 



8. Elytra tumid. (Tropical) Physonola alutacea 



Dorsum evenly rounded Physonota unipunctafa 



9. Form oval 10 



Form more circular 14 



10. Form strongly convex, color red 11 



Form depressed 15 



11. Elytra unmarked, expanded elytral margins strongly descending 



(Florida) Coptycycla repudiata 



Elytra with infuscate markings 12 



12. Elytra obsoletely vittate. (Arizona) Jonthonola mexicana 



Elytra maculate , 13 



13. Elytral margin opaque, spots less evident. (Middle States) 



Jonlhonota nigripes 

 Elytral margin translucent, spots more evident. (Pacific coast). 



Jonthonola 9-maculata 



14. Size large (9 mm.) dorsum gibbous, margins translucent (Brownsville, 



Texas) Psalidonota leprosa 



Size small (5-6 mm.), elytra multituberculate, margins maculate 



Oreclis callosa 



15. Sculpture coarse, elytra usually tessellate, color reddish or yellowish 16 

 Sculpture finer, elytra not costate, color green 17 



16. Size larger (8 mm.), elytral sculpture very coarse and reticulate 



Cassida nebulosa 

 Size smaller (5 mm.), elytra coarsely punctate and subcostate 



Cassida flaveola 



