46 NATuRAL History BULLETIN. 
species, third to eighth transverse, ninth and tenth twice as 
wide as long; eleventh three-fourths longer than wide. Pro- 
thorax widest in the middle, base two-thirds of the greatest 
width, sulcus fine, linear. /yiral lines, the second uniting 
with the sutural line one-third from the posterior elytral limits; 
the third is two-thirds, the fourth one-half of the elytral 
length. | 
Habitat. California. (Placer County.) 
O. INTERRUPTUS, Casey. Antenne as long as the head and 
prothorax together, third to eighth joints transvers2 and 
decreasing in length, ninth and tenth abruptly wider and 
longer, transverse; eleventh as long as the four preceding 
ones together. Prothorax widest one-third from the neck. 
Elytral lines, the middle ones close together, two-thirds of the 
elytral length, the external’ one one-third of the length. 
Length 1.9 mm. 
Habitat. California. (Sonoma County.) 
RueExius, Lec. 
(From pjyvou, 7 break, referring to the geniculate antenne.) 
Head and prothorax transverse; antenne geniculate; tarsi 
with two equal claws. 
R. .nscutptus, Lec. Pale brown, body depressed, pubes- 
cence abundant, erect. Palpi small, last joint thick, ovate. 
Length 1.2mm. Plate XI., Fig. 103. 
Head transverse, punctate, twice as wide as long, sides 
parallel to the middle, thence strongly convergent; frontal 
margin one-half of the width across the roundly angulated 
tempora; antennal tubercles very prominent; just behind them 
is a small oblong fovea, the space between them concave; the 
base is emarginate, the occiput carinate, the neck slender, one- 
fourth the width of the head; eyes prominent. Antenne as _ 
long as the head and prothorax together, first joint cylindrical, 
as long as the frontal margin, and one-third as thick; second as 
long as thick, not thicker than the first, obconical; third to 
