schaeffer: donaciini of the new world. 143 
absent and the sides below finely rugulose. The hind femora (pi. V, 
fig. 8) are rather robust but feebly clavate with base rather wide and of 
the same width as at apex which, however, is generally more pronounced 
in the male than in the female; the tooth below is generally moderate 
and the last dorsal segment of both sexes is emarginate at apex. The 
lower vaginal plate (pi. V, fig. 13) differs from all the other species in 
being more broadly arcuate at apex, the margins not finely but coarsely 
crenate and at middle with a more or less distinctly projecting, sharp 
point. 
DoNAciA DivERSA new species. 
Plate V, figs. 7 and 12. 
Elongate, females occasionally robust; above metallic brown or 
cupreous; antennae rufous with the joints more or less black at apex; 
below metallic, ventral segments at apex narrowly rufous; legs rufous. 
Head not strongly narrowed behind the eyes, but distinctly con- 
stricted; eyes prominent; median impressed line fine and deep ; surface 
distinctly pubescent and finely and densely punctate; antennae reaching 
to the middle of the elytra in the male and not quite to the middle in the 
female, second joint small, third distinctly longer and as long as the first 
joint, outer joints elongate. 
Prothorax as wide at apex as long; anterior angles distinct, obtuse; 
posterior angles feebly prominent; lateral tubercle feeble, internally 
separated from the disk by a shallow arcuate impression; sides slightly 
converging behind the tubercle, sometimes more or less arcuate; median 
impression absent or very feebly indicated; basal impression distinct; 
surface shining, densely punctate-rugose especially along apex, median 
line and base. 
Elytra shining without dorsal impressions; serial punctures moder- 
ately large, scarcely finer towards apex; surface coarsely rugose, produced 
by more or less closely placed transverse coarse rugae, intervals more or 
less distinctly punctate, some of the intervals more or less convex; 
lateral margin, from a postero-lateral view acute in about basal half but 
not even and more or less interrupted. 
Body below densely punctate and a little more densely pubescent 
than usual in this group; side pieces of prosternum near the anterior 
coxae with a distinct, though sparsely pubescent spot, externally more 
or less distinctly vermiculate-rugose ; posterior femora extending to or 
slightly below the apex of the third ventral segment, robust, feebly 
clavate, at base wider or as wide as at apex, armed below with a large 
tooth in both sexes. Length: 8-9 mm. 
