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SOUTH AMERICAN RUMOLPID®. 
Hermesia cyanea, sp. nov. 
Form and size of a small auwrata. Below and legs cyancous 
bluish, above shining metallic, cyaneous green; thorax minutely and 
on the disc remotely punctulate; elytra strongly transversely 
depressed, and closely punctate striate, becoming very fine at tip. 
Hind tibia of ¢ dilated within, half-way between the apex and 
middle, very much nearer the apex than in aurata. 
Type, 1 g, St. Catharina, Brazil; alsol ¢, 29, Amaz. Vall., 
near Santarem. 
Length, 5 mm. 
Very close to aurata, Oliv., but the g¢ easily separated by the 
difference in the hind tibia, awrata having the angulation median, 
this species much nearer the apex. The antenne are fuscous 
with rufous base, and metallic colouring on the scape ; head very 
sparsely and finely punctate, like aurata; in fact all the pune- 
tuation is very like that species, but in the 9 cyanea the sides 
of the thorax are more distinctly angled behind the middle. 
Hermesia enea, Jac., seems to depart from the rest of the 
genus in the form of the ‘thorax, being analogous to that group of 
the genus Rhabdopterus represented by erosulus, Lef., i.e. 
thorax widened near the base, as cited by Mr. Jacoby (‘ Trans. 
Ent. Soc.,’ 1900, p. 173). 
Hermesia Jacoby, sp. nov. 
Size of auwrata. Uniformly brown, like brunnea, but a little 
brighter ; thorax broad, sides strongly unidentate at the middle, 
with a well-marked sinuation in either side of the tooth; sparsely 
punctate, though somewhat segregated into groups, leaving smooth 
areas; elytra semicircularly depressed at the shoulder, strongly and 
closely seriate punctate, somewhat fainter, and with slightly raised 
intervals at apex. 
Type, ¢, Peru (Marcapata ?) (second Jac. Coll.). 
. Length, 6°5 mm. 
Front with well-marked transverse depression; antennal 
joints 8 to 11 missing, third slightly shorter than fourth ; 
thorax with rear edge strongly sinuate at middle. One of the 
largest smooth areas (irregular) ison the dise. Scutellum smooth 
impunctate, elytra parallel, punctuation nearly uniform ; first 
tarsal joint of the anterior and middle legs very fully dilated. 
Kasily separated by its thoracic characteristics. 
Hermesia similis, sp. nov. 
Short and robust. Body below black, slightly tinged with green, 
labrum, antenne and legs rufous; above metallic green, cyaneous ; 
thorax thickly and at sides confluently punctate; elytra closely and 
strongly punctured, seriate at the base and middle, finely punctured 
striate at apex. 
Type, 2 g,2 ?, Cochabamba, Boliv. (Germ.), 
Length, 4 mm. 
ENTOM.—avuaustT, 1921. R 
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