1897.] NATURAL SCIENCES OF PHILADELPHIA. 237 



punctato-rugose, feebly impressed down the middle; wings with a 

 slight yellowish tinge, nervures testaceous, second and third sub- 

 marginals at the top of about equal length, second recurrent vein 

 slightly bowed ; apical margins of abdominal segments narrowly 

 and obscurely testaceous ; pubescence of body golden and not dense. 

 Length 9 mm. 



Rio de Janeiro (July). One specimen. Allied to Cressoni and 

 curvinervis Cam., and auripilis Cress. It lacks the rough front of 

 the latter species. 



Agenia rugosa n. sp. 



9 • — Head and thorax, including coxae and trochanters and base 

 of femora blue; abdomen black, apical margins of the segments, 

 narrowly testaceous ; medial and hind tibiae and tarsi fuscous, the 

 femora except base and the fore tibiae reddish ; antennae beneath and 

 tegulae testaceous ; body pubescence cinereous ; clypeus longest medi- 

 ally, but not angularly produced, convex ; front microscopically 

 jmnctured ; pronotum slightly angulate posteriorly ; middle segment 

 rugoso-punctate, strongly impressed down the middle ; wings clear, 

 nervures black, third submarginal at the top longer than the corre- 

 sponding portion of the second, second recurrent vein slightly sinu- 

 ous. Length 9 mm. 



Rio de Janeiro (November). One specimen. 



Agenia chapadaen. sp. 



9 . — Dark metallic-blue, abdomen darkest ; antennae, coxae, troch- 

 anters, base of fore femora, apex of fore tarsi, the four hind tarsi 

 and apex of hind tibiae black ; otherwise the legs are' reddish ; ante- 

 rior margin of clypeus in the middle formed into a tooth ; pronotum 

 angulate posteriorly, swollen and prominent at sides ; middle segment 

 with a very faint trace of transverse striae, scarcely impressed down 

 the middle ; calcaria testaceous ; abdomen compressed apically ; 

 wings fuscous, paler at apex, with a purplish reflection, third sub- 

 marginal at the top a little louger than the corresponding part of 

 the second, second recurrent vein gently bowed ; face and clypeus 

 with dense cinereous pile. Length 8 mm. 



Chapada (May). 



Agenia costalis n. sp. 



9 . — Metallic-green, with a tendency to blue on middle segment ; 

 antennae paler beneath, tegulae, apex of femora, tibiae and tarsi, ob- 

 scure testaceous, the fore tarsi basally, and the apical joints of max- 



