NO. :iU4l. THE INSECT FAMILY DELPH ACID AE— CRAWFORD. 583 



clypeus, sometimes slightly compressed. Pronotum moderately long; 

 lateral carinae straight or more or less curved outward behind eyes. 

 Scutellum tricarinate. 



Type of genus. — Jassidaeus luguhris Signoret. 



Van Duzee's genus, Macrotomella, seems to be so similar to this 

 European genus that it ought to be merged into it. The differences 

 upon which it was erected are not constant enough and of sufficient 

 generic value to warrant its maintenance as a distinct genus. 



JASSIDAEUS CARINATUS Van Duzee. 



Macrotomella carinata Van Duzee '07:44. — '0,9:197. 



This species apparently belongs to the European genus Jassidaeus, 

 although there are a few minor differences. 

 Locality. — Jamaica and Florida (Van Duzee). 



JASSIDAEUS INCONSPICUUS Uhler. 



Stiroina inconspicua Uhler '77: 458.-- Van Duzee '97:260. 



This apparently belongs in the genus Jassidaeus, although I have 

 not seen specimens of the species. 

 Locality. — Colorado (Uhler). 



Genus PHYLLODINUS Van Duzee. 



Head about as broad as pronotum, or narrower, carinas moderately 

 distinct; vertex rather broad, scarcely produced before eyes; frons 

 longer than broad, tricarinate, sides straight or rounded, sometimes 

 indistinctly pitted as in Achorotile; antennae rather long, I shorter 

 than II. Pronotal carinas usually curved out behind eyes, sometimes 

 with indistinct pits behmd. Fore-and middle femora and tibiae con- 

 spicuously compressed and foliaceous; calcar tectiform, margin 

 coarsely or finely dentate; hind tibiae bispinose. 



Type of genus. — Pliyllodinus nervatus Van Duzee. 



The occasional pits on the frons and pronotum suggest a posisble 

 relationship with Laccocera and Achorotile, but apparently all the 

 species with the flattened femora and tibae are not so pitted. 



KEY TO THE SPECIES. 



a^. Head about as broad as prothorax; frons and pronotum with indistinct pits; elytra 



without white apical margin nervatus Van Duzee. 



a-. Head distinctly narrower than prothorax; frons and pronotum without pits; 

 elytra margined apically with white. 

 b^. Frons with transverse white bauds; tibiae and femora of equal width; scutellum 

 and part of pronotum white. 

 cK Frons with a very indistinct carina between median and each lateral. 



koebelei Osbom. 



c^. Frons without intermediate carinae flabellatus Ball. 



b^. Frons unicoloroue, without white bands; foretibiae wider than femora; scutel- 

 lum not white nitens Van Duzee. 



