212 THIRTIETH REPORT ON THE STATE MUSEUM. []OQ] 



XIX. NOTES ON CATOCALA PRETIOSA LINTN. 



This species is closely allied to C. polygama Gfuen. Its 

 distinctive features may be more clearly appreciated by a 

 differential comparison with that species. The basal region is 

 conspicuously and broadly shaded with black, deepening 

 toward the anterior transverse line ; in polygama, shaded with 

 ferruginous. The anterior transverse line is geminate, mod- 

 erately oblique in its general direction, tending to the posterior 

 third of the internal margin, distinctly separated by white 

 below and slightly above the sub median : in polygama the 

 line is quite oblique, tending to, or very near to, the internal 

 angle, and is preceded below the submedian by gray and fer- 

 ruginous scales. 



The posterior transverse line has the extra-cellular teeth 

 moderate, unequal, the lower one in cell 4 being improminent ; 

 moderately angulated outwardly (not toothed) on the sub- 

 median fold before the sinus ; the sinus short, not extending 

 to the middle of the wing, the line narrow with ferruginous 

 and white below it; from the sinus, running direct and slightly 

 oblique outwardly to the internal margin, followed by a white 

 line. In polygama the two teeth are conspicuous and nearly- 

 equal ; sharply toothed outwardly on the submedian fold, as 

 in C. cratcegi; sinus long, reaching the middle of the wing, the 

 line broad, with ferruginous on each side and without white 

 below ; below the sinus, a long and sharp tooth bordering the 

 internal margin. 



The two transverse lines are separated on the submedian 

 nervure by a space equal to the width of cell 2 on the ter- 

 minal margin, whence they run parallel to the internal 

 margin ; in polygama, they are nearly or entirely united on 

 the submedian, beyond which they widely diverge and again 

 wholly or nearly unite on the internal margin. 



The reniform is broadly surrounded by white ; in polygama 

 narrowly. The subreniform is round, its outline denned by 

 black scales ; at touches outwardly the median shade-line on 

 vein 2 ; of the two transverse lines, it is nearer to the posterior, 



