schaeffer: donaciini of the new world. 123 
parently used as a tool to make an opening in stems of plants in which 
' to deposit the eggs.^ 
Key to males and females of the species of Plateumaris. 
1. Hind femora uniformly metallic with a moderate or large 
tooth 2. 
Hind femora bicolored or entirely red, tooth variable 4. 
2. Side pieces of prosternum coarsely strigate, last dorsal segment 
at apex truncate, feebly emarginate or rounded 3. 
Side pieces of prosternum at apical half rugose, not or feebly 
strigate, basal half rather finely strigate, last dorsal segment 
distinctly and generally deeply emarginate at apex emarginata Kirby. 
3. Hind femora sparsely punctate, punctures separated by twice 
their own diameter or more, strongly clavate, armed below 
with a large, triangular tooth nitida Germ. 
Hind femora closely punctate, punctures separated by their own 
diameter or less, rather feebly clavate, armed below with a 
moderate tooth votmani n. sp. 
4. Tooth of hind femora verj^ small or absent 10. 
Tooth of hind femora moderate or large 5. 
5. Side pieces of prosternum relatively coarsely strigate-rugose or 
coarsely vermiculate-rugose 6. 
Side pieces of prosternum rather finely rugose, especially in 
apical half, basal half occasionally strigate-rugose, but not 
coarsely and generally indistinctly so; last dorsal segment 
emarginate at apex 9. 
6. Side pieces of prosternum coarsely strigate and without any 
indication of a pubescent spot near anterior coxae; last dorsal 
segment at apex truncate or rounded 7. 
Side pieces of prosternum coarsely and rather vermiculate- 
rugose with a more or less distinct pubescent spot near anterior 
coxae; last dorsal segment emarginate 8. 
7. Longitudinal median impression deep and rather wide but 
obscured by the dense sculpture in var. lodingi; lateral thoracic 
tubercle generally well separated from the disk and rugose; 
hind femora strongly incrassate; at base generally narrower 
than at apex; legs as usual, second joint of hind tarsi as long 
as wide at apex (plate V, fig. 5) fiavipes Kirby. 
Longitudinal median impression of prothorax generally nar- 
rower, sometimes feeble or absent; lateral thoracic tubercle 
poorly separated from the disk and smooth and shining; 
legs short and stout; hind femora robust, somewhat elliptical 
in shape, at base not narrower than at apex, second joint of 
hind tarsi wider at apex than long (plate V, fig. 6) sulcicollis Lac. 
8. Hind femora robust, gradually widening towards the sub-apical 
* The vaginal plates of the female of the European consimilis are apparently equal 
in size and not triangularly narrowed apically, but are wide and broadly rounded at apex. 
