295. 

 CALLIDIUM STRIATUM. 



Order Coleoptera. Fam. Cerambycidae Lat., Leach. 



Type of the Genus, Cerambyx Bajulus Linn. 



Callidium Fab., Lat., Oliv., Panz., Leach, Sam., GyL, Sleph. — Ce- 

 rambyx Linn., Marsh., Don. 



Antennce inserted close to the inner margin of the eyes, some- 

 times not much longer than the thorax ; nearly filiform, the apical 

 joints compressed 3 11-jointed, basal joint rather more robust 

 than the following, 2nd subglobose, 3rd the longest, 4th short, 

 the remainder rather longer, terminal joint subconic com- 

 pressed (6). 



Labrinn transverse-oblong, slightly narrowed anteriorly, the 

 angles rounded and pilose, with 2 small pencils of hair near the 

 middle of the margin (1). 



Mandibles porrected, trigonate, acute with a strong notch on 

 the internal margin, externally pilose (2). 



Maxilla: small, with a long ciliated lobe on the inside and termi- 

 nated by an elongated and ciliated one. Palpi longer than the 

 maxillae, robust and 4-jointed, basal joint minute, 2nd and 3rd 

 subtrigonate of equal size, 4th the largest, somewhat hatchet- 

 shaped (3). 



Mentum broad, transverse, very short, the anterior angles slightly 

 produced. Lip cordate, or bilobed and ciliated. Palpi attached 

 to 2 large scapes inserted near the base, triarticulate, clothed 

 with a few fine hairs, basal joint small, 2nd rather larger obovate- 

 truncate, 3rd the largest, somewhat hatchet-shaped (4). 

 Trophi small. Head short. Eyes reniform (7*). Thorax suborbiciilar 

 depressed. Scutellum subtrigonate. Elytra elongate, somewhat de- 

 pressed and not covering the apex of the abdomen. Wings ample. 

 Thighs robust clavate. Tibiae slender and simple. Tarsi short, 5- 

 jointed, basal and 2nd joints obtrigonate, the former the longer, Sid 

 bilobed, Athvery minute, truncated obliquely, forming the base of the 

 5th which is not longer than the \st and clavate. Claws simple (5). 



Striatum Linn. Faun. Suec. 668. — Gyll. 4. p. 80. n. 10. — Panz. 70. 1 3. 

 Dull black, excessively thickly punctured and clothed with ex- 

 tremely short hoary pubescence. Antennae not much longer than 

 the head and thorax ; a channel between the eyes terminating in 

 a triangular impression upon the clypeus. Thorax with a broad 

 shallow groove down the middle and an obscure fovea on each 

 side behind. Elytra transversely rugose j three longitudinal ele- 

 vated lines on each, with 3 alternate ones less raised. Tarsi tes- 

 taceous at the apex. 



In the Cabinets of Mr. Lyell and the Author. 



This genus is distinguished by its more depressed form, or- 

 bicular thorax and shorter antennae ; it completes the illus- 



