// 



7 ' 7^30 

 323. 



CRIOCERIS PUNCTICOLLIS. 



Order Coleoptera. Fam. Crioceridae Lat.^ Leach. 



Type of the Genus, Chrysomela Asparagi Linn. 



Crioceris Geo/., Oliv., Lat., Panz. — Lema Fab., Panz., Gyl. — Au- 

 chenia Mars. — Chrysomela Linn., Don. 



AntenncemsiiTitdi before the eyes, longer than the thorax, straight 

 and submoniliforra, pubescent, 1 1 -jointed, basal joint not larger 

 than the 3rd, the 2nd small subglobose depressed, 3rd rather 

 longer than the 4th, the remainder of equal size, oblong, ter- 

 minal joint the longest and conical (6). 



Lahrum suborbicular, straight at the base, and slightly notched 

 at the middle of the anterior margin which is ciliated with strong 

 bristles (1). 



Mandibles subtrigonate, curved, bifid at the apex and ciliated on 

 the internal side below the middle, where there is a tooth in 

 one (2). 



MaxiilcB producing 2 lobes, densely clothed with pubescence at 

 their extremities, external one articulated and curved. Palpi 

 not extending much beyond the lobes, 4-jointed, basal joint mi- 

 nute, 2nd robust subtrigonate, 3rd rhomboidal, 4th elongate- 

 oval (3). 



Mentum transverse, curved, narrowed anteriorly and concave in 



front. Lip suborbicular, with a groove down the middle, ciliated 



in front. Palpi arising near the anterior angles, short, triar- 



ticulate, basal joint subglobose depressed, 2nd subobtrigonate, 



3rd a little longer ovate, terminated by a vesicle (4). 



Head nutant, collar distinct. Eyes small but prominent, emarginate on 



the inside. Thorax cylindrical, the sides sometimes incised. Scu- 



tellum minute. Coleoptera elongate-ovate, much broader than the 



thorax. Wings ample. Legs rather robust. Thighs incrassated. 



Tibiae curved, simple. Tarsi 4-jointed, cushioned beneath, 2 basal 



joints obtrigonate, 3rd bilobed, 4th long clavate. Claws simple bent 



and acute (5). 



PuNCTicoLLis Spence MSS. — Curtis's Guide, Genus 420. n. 3. 



Cyaneous, shining. Antennae dull black, excepting the basal 

 joint. Eyes deeply emarginate. Head punctured, with a channel 

 on the back part. Thorax incised and punctured, excepting a 

 narrow elevated space in the middle, between 2 thickly punc- 

 tured lines ; towards the base is a transverse impression, with a 

 large puncture in the centre. Elytra with 9 punctured striae on 

 each, the sutural one furcate at the base. Tarsi black. 

 Obs. The head and thorax sometimes have a violaceous, and the 

 elytra a greenish tint. 



In the Author's and other Cabinets, 



