64 BROOKLYN MUSEUM SCIENCE BULLETIN 3. 3. 
narrowed behind the eyes, which are slightly smaller than 
in siibtilis but appear to be more protruding ; elytra without 
transverse, coarse rugae, intervals generally evenly and 
finely rugose from base to apex, laterally mostly with a 
rather broad, longitudinal, shallow impression; last dorsal 
segment of abdomen emarginate at apex distincta Lee. 
Form narrower and more elongate; head relatively feebly 
narrowed behind the eyes which are moderately large and 
moderately prominent; elytra generally with more or less 
distinct transverse, coarse rugae, intervals moderately finely 
to moderately coarsely rugose from base to apex, at apex 
generally finer and denser, disk occasionally in about basal 
half or less smooth and shining, at sides and near apex 
more or less densely rugose 29. 
29. Elytra more elongate, subtriangular, depressed and when 
viewed laterally flattened above near apex; antennal joints 
more elongate; prothorax distinctly narrowing from apex 
to base; median impressed line rarely present; lateral 
tubercles feeble and scarcely distinct or absent subtilis Kunze. 
Elytra shorter, more convex and parallel, when viewed later- 
ally more or less distinctly arcuately declivous near apex; 
prothorax scarcely narrowing behind; median impressed line 
always distinct; lateral tubercles distinct, though not 
prominent hiherctdifrons Schffr. 
Descriptions of Species.^ 
donacia militaris lac. 
Plate V, fig. 4. 
Oblong, depressed; color above from entirely flavous to blue or 
green; antennae pale or almost entirely black; underside pale, laterally 
generally darker; legs pale, all the femora or only the posterior ones 
more or less infuscate. 
Head not constricted behind the eyes; moderately closely punctate; 
median impression deep ; eyes moderately large ; antennal joints elongate ; 
third joint about one third longer than second. 
Prothorax subquadrate, sides more or less parallel, frequently 
narrowing from base to apex ; apical angles blunt ; basal angles generally 
prominent; surface finely alutaceous, feebly shining, without or with a 
few fine punctures on disk; lateral tubercles absent; a short, but deeply 
impressed line at middle of base, which rarely extends as far as middle; 
occasionally there is also on each side of this short median line near 
base a short, oblique or slightly arcuate transverse impression. 
* The measurement's are taken from the apical margin of the prothorax to the apex 
of elytra. Only localities are recorded from which specimens have been seen. 
