C apsida, 
au 
Puton in his catalogue, of which our fauna possesses 
fourteen. 
(4) 
(3) 
(18) 
(21) 
(20) 
(23) 
(22) 
(11) 
(26) 
(25) 
P. betuleti, Fall. (ambiguus, D. & 
1. 
2. 
4. Second joint of the antenne pale. 
5. Posterior femora not spotted, 
6. Black-brown in both sexes, cuneus 
entirely dark 
7. Not black-brown in both sexes, cuneus 
pale at the base. 
8. Smaller, shorter and broader, pubes- 
cence fine, golden, aud more regular 
9. Larger, longer, pubescence coarser, 
white, and less regular 7 
10, Posterior femora spotted, often very 
dark, but always with still darker 
spots. 
11. Cuneus not entirely white. 
12. Densely clothed with silvery hairs 
13. Not densely clothed with Bae hairs. 
14, Cuneus red at the apex 3 
29, 
aa 
23. 
24, 
25. 
26. 
Second joint of the antennew black or 
partly black. 
Larger; male with third and fourth 
joints of antennze dark, fourth about 
half as long as the third, female, 
second joint dark, paler in the 
middle 
. Smaller; male, third and fourth joints 
of antenne pale, forrth two-thirds 
as long as the third, female, second 
joint pale, black at the apex 
. Cuneus white at the apex. 
. Femora very pale, ges freckled with 
black spots 
. Femora towards the apex only, spotted 
with black, apex brown or reddish. 
. Fourth joint of antennze two-thirds as 
long as the third 
. Fourth joint of antennze about half as 
long as the third. 
20. Elytra, especially the clavus, freckled 
with darker red spots 
. Elytra not freckled with darker spots. 
. Larger, fourth joint of antennz rather 
shorter in proportion to the third . 
Smaller, fourth joint of antenna rather 
longer in proportion to the third 
Cuneus entirely white. 
Posterior femora pale 
Posterior femora dark . 
Sj 
BETULETI, 
AMBIGUUS, 
OBSCURELLUS, 
VARIABILIS, 
QUERCUS, 
RorerMuNDI. 
ALNICOLA. 
FaLLeni. 
LEPIDUS. 
ALBICINCTUS. 
VARIANS, 
DIMINUTUS. 
SANGUINEUS. 
SALICELLUS. 
Clothed with 
