CaC^* 



PROCEEDINGS 





CALIFORNIA ACADEMY OF SCIKNCKS 

 Fourth Series 

 Vol. XI, No. 9, pp. 109-110 September 29, 1921 



IX 



DESCRIPTION OF A NEW SPECIES OF PERO FROM 



CALIFORNIA 



w. s. wright, San Diego, California 



Pero vanduzeeata, new species 



Alar expanse 46 mm. (measurement made from center of 

 thorax to apex of each wing and added). 



Head black with tinges of brown; thorax mouse-colored; 

 abdomen gray with black cross-stripes dorsally at the joints; 

 palpi concolorous with the head; antennae brown, slightly 

 lighter in color than the head. 



Above: Primaries rather sordid-white ground-color; basal 

 area to first line black, preceded by a fine white hair line per- 

 pendicular to costa, or nearly so, at one-third from base, which 

 after reaching the cell, curves rather broadly to median vein 

 whence it runs in a straight course to inner margin at the middle; 

 whole line subcrenulate, with a rather sharp outward bend be- 

 tween vein I and inner margin. Median area black, with little 

 of the ground-color apparent, a little wider on costa than dis- 

 tance from base to first line, rather suddenly narrowing below 

 the cell to half the costal width. Second line black, rather 

 broadly sinuate with fine white hair-line beyond. Terminal 

 space somewhat lighter than basal area, broken into two rather 

 indefinite bands, the outer darker and having a rounded inner 

 edge commencing just below the apex and sweeping to anal 

 angle ; a dark patch of same color on inner margin between anal 

 angle and second line. Discal dot white, linear, transverse, and 

 slightly angled in the center. Secondaries sordid white, heavily 

 sprinkled with black. Discal dot black, faintly apparent. 



