10. 
lite 
12. 
138. 
14. 
15. 
16. 
17. 
18. 
19. 
20. 
TRANS. ROY. DUB. SOC., N.S. 
BLACKBURN AND SHARP—On some New Species and Cfenera of Coleoptera. 
. Lobes of third joint of tarsi very large; oblique ridges on elytra well-defined 
and strong ; 
3? 
a species of rather abbreviated form, . 5 9 
Lobes of third joint of tarsi only moderate; form rather elongate; oblique 
ridges almost obsolete, 
The transyerse as well as longitudinal ridges almost obsolete; antenne 
slender, with a well-defined club of three joints, A : : : 
The transverse as well as longitudinal ridges well-defined ; antenne stout, 
only slightly thickened at apex, 
The anterior portion of the thorax abruptly narrowed, so that the lateral out- 
line does not form a continuous curye, . . 5 4 
Thorax rounded regularly (or nearly so) on the sides, 
Elytra considerably narrowed towards the base in their anterior third; legs 
and antenne black, ; . 0 : ° 
Elytra but little (though quite evidently) narrowed towards the base in their 
anterior third ; legs and antenne testaceous, - A 5 : ‘ 
Elytra parallel and somewhat elongate, 
Thorax not more than moderately transverse, and not wider than elytra, . 
Thorax extremely transverse, and slightly wider than the elytra, . . . 
Species of cylindric form (the length of thorax and elytra together being about 
three times the greatest width), . : 5 : . . . 
Species of shorter and broader form (the length of thorax and elytra together 
much less than three times the greatest width), . . . . . 
Shoulders not at all produced or angular. Species less than 2 m.m. in length, 
Shoulders angular, prominent. Species more than 2 m.m. in length, . 
Humeral angles prominent, . - ; . : : . . . 
Humeral angles not prominent, . : 2 : 5 : : : . 
Second joint of antenne not less than half as long as firsi, . : . ‘ 
Second joint of antenne much less than half as long as first, : : 
Antenne yery little, if at all, longer than head (including rostrum) and 
thorax, : : : c 0 : : . : . . . 
Antenne considerably longer than head (including rostrum) and thorax, 
Length of elytra along suture about one quarter longer than of head (including 
rostrum) and thorax, 3 
Length of elytra along suture scarcely longer (especially in the female) than 
of head (including rostrum) and thorax, 
Elytra across the base as, or nearly as, wide as in widest part. Tarsi uni- 
colorous, . : , 
Elytra across the base much narrower than in the widest part. Lobes of the 
tarsi paler than claw joint, . 3 F ‘ 5 5 ; : 
A conspicuous patch of pale squamosity at the shoulder, 
Elytra without conspicuous markings, formed by patches of squamosity, 
2B 
VOL, Ul. 
175 
sternalis. 
integer. 
dispar. 
validus. 
11. 
12. 
nigricans. 
vestitus. 
detritus. 
By 
laticollis. 
14. 
15. 
linearis. 
longulus. 
16. 
22. 
ile, 
collaris. 
18, 
longicornis. 
19. 
humeralis. 
20. 
21. 
angularis. 
ineptus. 
