316 LONGICORNIA — CERAMBYCIDAE. 



Asenium. 



Black, dull. Upper-side very finely and closely punc- 

 tured ; elytra with striae, interstices more or less raised. 

 L. 6 — 7 1 1. Not very common. A. strioJiim, Lin. 



Hylotrupes, 



Pitch-black or brownish ; pubescence gray, on thorax 

 close and long, leaving bare only an indistinct central line 

 and a shiny tubercle on each side of disc ; elytra some- 

 times with a more or less apparent band of closer gray 

 pubescence before middle. L. 6 — 8 1. Scarce. 



H. hajulus, Lin. 



Callidium, 



A. Thorax without tubercles. 



a. Elytra unicolorous. 



I. Upper-side blue or violet, not pubescent. 



Under-side brownish. Sides of thorax rounded. L. 5 — 6 1, 

 Common. C. violaceum, Lin. 



II. Upper-side black, but covered with red pubes- 

 cence. 



Under- side black. Sides of thorax slightly angular. L. 

 4 — 5 1. Rare. C. sanguineum, Lin. 



b. Elytra with white markings. 



Black ; antennae, base of elytra and the legs (except 

 apex of femora) rust-red ; elytra with two bent bands 

 of white pubescence. Thorax less flat and transverse than 

 in C. violaceum, sides rounded. L. 2 — 2| 1. Common. 



C. alni, Lin. 

 S, Thorax with four smooth tubercles. 



Colour variable. Either black, with elytra blue or yel- 

 lowish-red ; or black, with thorax (wholly or partly), part 

 of antennae and legs and apex of abdomen brownish-red, 

 elytra bluish, or yellowish-red, with breast blackish, and 

 with or without head and apex of elytra blackish. Elytra 

 elongate, finely punctured, with a slightly raised line ; 

 mesosternum bluntly pointed or rounded between inter- 

 mediate coxae. L. 5 — 6| 1. Not common. 



C. variahile, Lin. 



