556 SIDNEY I. KORNHAUSER 
Fig. 7 Normal males and pronota of normal males, showing variation in 
extent of vitta and form of pronotal horn. Extension of yellow pigment in vitta 
arranged in series from atol. X 1.5. 
Fig. 8 Vertical section of cuticula of pronotum of male, passing through 
part of vitta. X 144. 
Fig.9 Vertical section of cuticula of pronutum of female, passing through 
part of vitta. X 144. 
