1911] Heredity in Adalia 29.") 



For these pronota two curves were given, Figure 7, curves (d) 

 and (e), curve (d) to show the variation of the lateral spot only 

 and (e) to represent the general melanism when the other 

 markings are considered, each degree representing about the 

 equivalent of the melanism of the state of the lateral spot as 

 given in the legend for the respective columns. The curve for 

 annectans in this series was much broader than that for melano- 

 pleura. The mother was rather toward the albinic end of the 

 series for annectans and at the melanic end for melanopleura. 

 All of the annectans, 27 in number, had the red spots on the 

 elytra, as shown in Fig. B, Plate XIX. 



Figure 5, Plate III, shows another melanopleura-annectans 

 hybrid, female mated with a humeral is male, and her first 

 generation progeny. Here again would be but one strain of 

 annectans. The range of variation in the elytra of annectans 

 was not very broad, showing none of the more albinic forms, 

 the curve, Figure 6, curve (d), Plate XXI, beginning at one con- 

 fluence and extending to three and a half confluences. In the 

 pronota of the annectans series, Figure 7, curve (g), Plate XXII, 

 uniformity almost obtains, 93 per cent having the lateral spot 

 well enclosed and 7 per cent being one-fifth enclosed. In the 

 melanopleura series, however, the curve, Figure 7, curve (h), 

 Plate XXII, is very broad extending to a degree of melanism that 

 is quite rare. The mother ranks at the albinic end of the scale 

 though the highest part of the curve for her melanopleura 

 offspring is four degrees further to the melanic end of the scale. 



GENERAL OBSERVATIONS. 



In comparing the curves for the elytra it must be born in 

 mind that the chief points of comparison are the melanic 

 positions of the range and highest points of the curves. Since 

 the number of individuals represented by each of the curves 

 was not uniform, the exact number on any one line shown by 

 the different curves is not truly comparable; only the melanic 

 position of high and low points and range in each curve can be 

 compared with the same in another curve. 



It will be noted that each curve has one or two points that 

 are much higher than any other points in the curve, and that 

 these high points in the different curves vary greatly in melanic 

 position, also that the curves vary considerably in their range. 

 It seems as though these high points in the curves might repre- 

 sent centers of variation. The curves would then signify that 

 different strains of these beetles have different centers of 



