Bruner: Tropical American Tettic.onoidea. 333 



/ -• 



Orophus marginatus (Brunner). 

 Microcenlrum marginatum Brunner, Mon. Phaneropt., pp. 334, 336 (1878); lb., 



Addit. Mon. Phaneropt., p. 179 (1891); Saussure & Pictet, Biol. Cent.-Amer. 



Orth.. I. pp. 357. 358 (1898). 

 Orophus marginatus Kirby, Syn. Cat. Orth., II, p. 481 (1906). 



Habitat. — A single male specimen is at hand bearing simply the 

 label "June." Possibly it comes from some Brazilian locality and 

 may have been taken by either H. H. Smith or J. D. Haseman. 



73. Orophus colosseus (Brunner)? 



Microcentrum colosseum Brunner, Mon. Phaneropt., pp. 335, 341 (1878); lb., 

 Addit. Mon. Phaneropt., p. i8o (1891); Saussure & Pictet, Biol. Cent.-Amer., 

 Orth. I, pp. 358, 361, PI. 17, figs. 9, 10 (1898). 



Orophus colosseus Kirby, Syn. Cat. Orth., II, p. 481 (1906). 



Habitat. — A male specimen coming from Rio de Janeiro has been 

 temporarily placed here. It was possibly taken by H. H. Smith. 



74. Orophus erosus (Brunner). 



Microcenlrum erosum Brunner, Addit. Mon. Phaneropt., pp. 180, 181 (1891); 



S.A.USSURE & Pictet, Biol. Cent.-Amer.. I, p. 358 (1898). 

 Orophus erosus Kirby, Sj^n. Cat. Orth., II, p. 481 (1906). 



Habitat. — A single female specimen of this species is at hand. It 

 comes from "Province del Sara," Bolivia, and was taken by J. Stein- 

 bach during November, or December. 



75. Orophus nigrolineatus sp. nov. 



Size rather small. Related to securifenis and pallidas Brunner, 

 but quite distinct from both of these. Characterized by a con- 

 spicuous narrow black line following along the anterior radial vein of 

 the tegmina and a longitudinal row of six or seven small smooth yellow 

 papillae along the middle of the costal area. 



General form of insect robust, the head as broad as the anterior 

 margin of the pronotum, its sides parallel, front smooth. Fastigium 

 roundly depressed, about twice as wide as the first antennal joint, a 

 very little sulcate. Pronotum short, rather closely punctulate above, 

 less closely so on the deflexed lobes, with the sides almost parallel; 

 the disc fiat, rounded behind, sinuate in front; lateral lobes per- 

 pendicular, higher than long, obtusely joined to the disc. Tegmina 

 of moderate width, both forks of the branch of the posterior radial 

 reaching the posterior border in advance of the apex, the anterior fork 



