302 NatTurAL History BULueETIN. 
size, inside more convex than outside; eighth, narrower, as 
wide as long; ninth and tenth, larger, truncate, obconical; 
the last as long as the three preceding together, more than 
twice as long as its width, Prothorax wider than long, con- 
vex punctured along the base, lateral foveze small, median 
oblong. /ytra across the shoulders a little wider than the 
prothorax, twice as wide near the posterior limits, disk convex, 
sparsely punctured, discal lines fine, arcuate, sutural ones par- 
allel. Addomen broadly convex, basal segment with the carinz 
very short, more than one-third of the segmental width apart. 
Legs, the posterior tibiz slightly arcuate. 9 antenne shorter, 
regular. Plate IX., Fig. 72, antenne, ¢ dnd @. 
California (Sonoma Co). Spokane Falls, Washington. 
Idaho. 
B. FRANCISCANA, Casey. Slender, black, elytra red; legs 
and antenne dark brown, -polished; pubescence, dense, short. 
Length, 1.3 mm. 
fTead feebly convex, punctuate, gene shorter than the eye, 
fovez small, frontal foveze wanting, frontal declivity bearing 
an oval spot with setiform, short hair. Antenne stout, hardly 
as long as the head and prothorax together, the basal joint 
short, as thick as the tenth, the second rounded, half as thick, 
the third narrower, obconical, longer than wide, the fourth like 
the second, the fifth wider than the fourth and twice as long, 
the sixth and seventh smaller, as long as wide, eighth very 
small, transverse, ninth and tenth rapidly increasing in width, 
trapezious, the last one-half wider than the tenth, as long 
as the three preceding ones together, truncate at the base, 
pointed. Prothorax very little wider than the head, wider 
than long, transversely convex, densely punctate, lateral 
fovee large, median very small. £/ytra slightly wider than 
the prothorax across the shoulders, across the posterior third 
not quite twice as wide and a little wider than long; sutural 
lines deep, discal sharp, arcuate. Addomen broadly convex, 
basal carine fine, divergent including one-fourth of the seg- 
mental width. Legs short, stout, intermediate, tibia with a 
terminal spur. 
