THE GENETICS OF HABROBRACON JUGLANDIS ASHMEAD 



tribution and intensity show some variation, 

 but they can never be seen from the dorsal view. 

 A homozygous, white shot-veins stock was de- 

 rived and called variegated. This variegated 

 stock has been found to breed true and to be of 

 normal viability and fertility (A. R. Whiting, 

 1933f, 1934). 



BEMT-WINGS, bw (wings). In June, 1932, a vir- 

 gin female produced a fraternity of eighteen 

 males, five of which had bent-wings. In this^ 

 mutation the wings are quite narrow and are 

 bent anteriorly along the costal margin. The 

 females are apparently unable to sting active 

 caterpillars. However, when placed with para- 

 lyzed caterpillars a few may sting, feed, and 

 lay eggs, but the eggs fail to hatch. The 

 males are of normal viability. (Discarded) 



GABLED, gb (wings). In March, 1932, an orange 

 defective female (which had been mated with an 

 X-rayed male) produced wild-type females. Sev- 

 en of the azygous males obtained from them had 

 wings which sloped when folded like gables of a 

 roof. The mutant type is thus easily recog- 

 nized in the vials. The wings have venation 

 more reduced than in any other mutant type ex- 

 cept veinless. The factor causes very poor vi- 

 ability; gabled males are less than ten per 

 cent as frequent as their normal wild-type sibs 

 from heterozygous mothers. Gabled females have 

 not been produced (P. W. Whiting, 1934b). 

 (Discarded) 



FLARE, fl (wings). In February, 1932, a wild- 

 type virgin female produced eleven males two of 



