Ord. I. F. XXXV., Chrjsomelince. 67 



tere interno scepius unidentato ; palpi maxillares extrorsum 

 crassiores aut filiformes , articulo ultimo plerumque truncato ; 

 maxillce scepius processibus fere cequalibus , subcylindricis , 

 subparallelis , externo paulo latiore ; labium scepius trans— 

 verso-quadratum , coriaceum aut crustaceum , unisulcatum , 

 margine supero emarginato ; mentum transversum, margine 

 supero subrecta transverso , nullatenus aut vix emarginato ; 

 corpus illis subhemisphcericum aut ovatum ; his elongato- 

 ovatum vel ovale, in nonnullis elongato-subquadratum ; ca- 

 put nutans; thorax antice aut postice saltem elytrorum lati- 

 tudine aut illis vix angustior , planiusculus aut parum ar- 

 cuato-convexus. 



Observatio. Labrum subemarginaturn. 



CCCXXVIII. Gentjs. Chrysomela. Chrysomele. 



Chrysomela , Linn. , Geoff. , de Geer , Fab. , 

 Oliv. , Lamarck. 



Antennce sensim extrorsum crassiores, haud subcla- 

 vatae, articulis longioribus quam latioribus aut saltem 

 non transversis. Palpi maxillares exserti , maxillis lon- 

 giores , articulo ullimo fere in omnibus crassiore , 

 truncato, subobtrigono aut semiovato vel subquadrato 

 ( breviter subcylindrico , compresso ). Labium trans- 

 verso-quadratum , coriaceum aut crustaceum. 



Corpus subhemisphaericuni vel suborbiculare aut sub- 

 ovatum, crassum, convexum. Thorax transversus. 



Observatio. Palporum maxillarium arliculns lerminalis 

 forma varius ; in speciebus corpore bemispha?rico aut suborbi- 

 culalo generaliter subobtrigonusaut fere snbsecuriformis ; in spe- 

 ciebus corpore ovato semiovatus aut subquadralus; in aliisma- 

 gis elongatis ad formam truncalo-subovatam aul coinpresso- 

 subcylindricam accedens ; at generis divisiones primarise ex his 

 characteribusdesumptseordinem naluralem perturbare videnlur. 

 Chrysomelae : atra Olivieri , polygoni , armoracice , galeruca 



III. 8 



