154 ENTOMOLOGICAL NEWS [Apr., '17 



C. Costal margin of the tegmina arcuate distad; general 

 form of the tegmina elongate elliptical. Eyes proportion- 

 ately larger ; face more compresso-bullate. Limbs rela- 

 tively longer. 



D. Size smaller ($ tegminal length 32-33 mm.). Teg- 

 mina proportionately narrower, the greatest width con- 

 tained more than two and one-half times in the great- 

 est length of the same. Head proportionately narrower, 

 fastigium of vertex more acute. 



crenulatum (B runner). 

 DD. Size larger (' $ tegminal length 39-40-5 mm.). Teg- 

 mina proportionately broader, the greatest width con- 

 tained not more than two and one-half times in the 

 greatest length of the same. Head proportionately 

 broad, fastigium of vertex less acute. 



costaricense new species. 

 CC. Costal margin of the tegmina obtusely rounded at distal 

 third; general form of the tegmina having the costal and 

 sutural margins approximately parallel. Eyes proportion- 

 ately smaller; face less bullate, hardly compressed. Limbs 



relatively shorter peruvianum new species. 



AA. Marginal field of the tegmina very wide, slightly expanding 

 distad, at distal fifth equal to but faintly less than one-half the 

 greatest tegminal width; apex of the tegmina very obtuse-angulate. 

 (Size largest of the species seen. Head strongly compressed; face 

 greatly compresso-bullate.) simplex Scudder. 



Coelophyllum amazonicum new species. (PI. XIL fig- 1) 



Of the members of this group of the genus, amazotnctim is 

 characterized by the combination of a broadly rounded teg- 

 minal apex, a distad narrowing marginal field of the tegmina, 

 a median bifurcation of the tegminal ulnar vein, a rectangulate 

 production of the free margin at the apex of the stridulating 

 vein of the male tegmina and the broad, but moderately com- 

 pressed pronotum. The type has been dried after immersion in 

 a liquid preservative and, in consequence, has lost almost all of 

 its original coloration. The only features of this preserved are 

 small semilunate spots of black situated at the base of the ulnar 

 and anal veins of the tegmina. 



Type. — S ; Contamano. Rio Ucayali, Peru. October to De- 

 cember, 191 2. [Acad. Nat. Sci. Phila. Type No. 5312.] 



