704 



ENTOMOLOGY. 



Palpi terminated by two joints of nearly an equal 

 length, the last almost ovoid truncate, or nearly cylin- 

 dric. Sternum not produced. 



* Thorax with the sides incrassated, as if margined : 



Body ovate-quadrate. 

 Sfi. 1. Banksii. 



Chrysomela Banksii. Fabricius, Latreille, Marsham. 

 Inhabits Europe. 



• * Thorax with the sides not incrassated. Body 

 ovate-quadrate. 



Sfi. 2. Lit tira. 



Chrysomela litura. Fabricius, Latreille, Marsham. 



Inhabits the broom. 



* * Body clongate-ovate-quadrate. 

 Sfi. 3. Marginella. 



Chrysomela marginella. Fabricius, Latreille. 

 Inhabits Europe. 



Subdivision 2. 



Antennae with the four last joints semi-globose al- 

 most forming a club. Body elongate-quadrate. Tho- 

 rax as long as broad. 



Genus CCCXIX. Helodes. Paykull, Fabricius, 

 Olivier. 



Phasocuris. Latreille. 



Chrysomela. Marsham, Hellwig. 



Palpi short, thicker at their middle, the last joint 

 short-obconic. 



Sfi. 1. Phellandrii. 



Helodes fihellandrii. Paykull, Fabricius. 



Prosocuris fihellandrii, Latreille. 



Inhabits Europe. 



Sfi. 2. Violacea. 



Helodes violacea. Fabricius. 



Chrysomela beccabunga. Hellwig, Marsham. 



Inhabits Europe. 



Division II. 



Mandibles abruptly arcuated, terminated by a very 

 strong point. Antennae with the four last joints elon- 

 gate, compressed, reversed-conic, the last long almost 

 elliptic, and terminated by a point resembling an addi- 

 tional joint. 



Genus CCCXX. Coi.aspis. Fabricius, Latreille. 



Maxillary palpi terminated by a large joint, nearly 

 ovoid. 



Sfi. 1 . Surinamensis. 



Colasfiis Surinamensis. Latreille. 



Inhabits Surinam. 



Family IV. Cryfitocefihalida. 



Maxillary palpi very apparent. Antennae inserted 

 before the eyes. Head vertical. 

 Division I. 



Palpi with the last joint thick', ovoid. Body nearly 

 ovoid. 



Genus CCCXXI. Eumolpus. Kugellan, Weber, 

 Fabricius, Latreille. 



Cryptocephalus. Olivier, Geoffroy. 



Thorax with a very convex back, which is gibbose. 



Sfi. I. Vitis. 



Cryfitocefihalus vitis. Fabricius. 



Eumfiolus vitis. Fabricius, Latreille. 



Inhabits Europe, on the vine. 



Division II. 



Palpi with the last joint conie-cylindric. Body short- 

 cylindric. 



Genus CCCXXII. Cryptocephalus. Geoffroy, Fa- 

 bricius, Olivier, Latreille, Lamarck, Marsham. 



Chrysomela. Linn. De Gcer. 



Antennae simple, filiform, about the length of the 

 body. 



Sfi. 1. Sericeus. 



Chrysomela sericea. Linn. 



Cryfitocefihalus sericeus. Fabricius, Olivier, Marsh. 



Inhabits the flowers of the Dandelion. 



Genus CCCXXIII. Clythra. Laicharting, Fabrici- 

 us, Olivier, Latreille. 



Chrysomela. Linn. 



Melolontha. Geoffroy. 



Cryptocephalus. Marsham. 



Antennae short, serrated, exserted. Palpi alike. 



Sfi. 1. Quadrifiunctata. 



Clythra quadrifiunctata. Fabricius, Latreille. 



Cryfitocefihalus quadrifiunctatus. Marsham. 



Chrysomela quadrifiunctata. Linn. 



Inhabits Europe. 



Genus CCCXXIV. Clamys. Knoch, Latreille. 



Clythra. Fabricius, Olivier. 



Labial palpi furcate. Feet contractile. Antennae short, 

 serrated, lodged in a rim of the thorax. 



Sfi. 1. Monstrosa. 



Clythra monstrosa Fabricius. 



Chlamys monstrosa. Latreille. 



Subdivision 1. 



Antennae a perforated club. Maxillae with their in- 

 ternal side unguiculated. 



Tribe X. Erotylides. 

 Family I. Erotylida. 

 Palpi all terminated by large, semilunar, or securi- 

 form joints. 



Division I. 

 Antennae with their intermediate joints elongate, 

 nearly cylindric or obconic. Body much elevated. Tho- 

 rax flat. Tibiae slender, nearly cylindric. 



Genus CCCXXV. Erotylus. Fabr. Oliv. Latr. 



Body ovate or oval. 



Sfi. 1. Gibbosus. 



Erotylus gibbosus. Fabricius, Latreille. 



Genus CCCXX VI. .£gitiius. Fabricius. 



Erotylus. Latreille. 



Body hemispheric. 



Division II. 



Antennae moniliform below, terminated by an ovoid 

 club. Thorax elevated at the middle. Tibiae elongate- 

 triangular. 



Genus CCCXXVII. Tritoma. Fabr. Oliv. Latr. 



Body short-ovate, the back elevated in the middle. 

 Thorax with the middle of the hinder margin dilated 

 into an angle. 



Sfi. 1. Bifiustulatum. 



Tritoma bifiustulatum. Fabricius, Paykull, Latreille. 



Inhabits Boleti. 



Genus CCCXXVIII. Triplax. Payk. Fabr. Oliv. 



Silpha. Linn. Marsham. 



Body oval. 



Sfi. I. Russica. 



Silfiha russica. Linn. Marsham. 



Trifilax russica. Paykull, Fabricius. 



Tritoma russica. Latreille. 



Inhabits dead trees and fungi. 



