THE GENETICS OF HABROBRACON JUGLANDIS ASHMEAD 



but have purple splotches in the ventral por- 

 tion, and the ocelli are light. It is female 

 fertile, and the males are of normal viability. 



GLASS, gl (eyes, antennae, and tarsi). In Oc- 

 tober, 1931, mutants having smaller eyes and 

 slenderer antennae than normal were found in a 

 fraternity from a female heterozygous for orange 

 and maroon. Glass eyes lack facet outlines and 

 resemble the shiny, immature eyes of developing 

 pupae. Sections of glass eyes show incomplete 

 tissue differentiation; hence, this mutation 

 may result in arrested development of the eye. 

 Ocelli apparently are not affected. Antennae 

 are very slender and of uniform diameter. The 

 tibial spurs of the prothoracic legs are small 

 while those of the mesothoracic and raetathoracic 

 legs are lacking. The foot is much malformed 

 and reduced in size with claws very small or 

 lacking. Glass females are weak and of de- 

 creased fertility. Glass males are of good 

 viability. 



GLAZE, gz (eyes). This mutant appeared in the 

 summer of 1934 in the offspring of an X-rayed 

 female (dosage about 4000 R units). Glaze re- 

 sembles glass, but antennae and tarsi are not. 

 affected. It is female fertile with males of 

 normal viability. 



SHINY, gz^ (eyes). Shiny is an eye mutation 

 where the compound eyes are of the v/ild-type 

 black but show a very enamel-like gloss on 

 their surface. In various tests it has been 

 found to be allelic to glaze. Both sexes are 

 fertile with normal viability. (Discarded) 



28 



