GYNANDROMORPHOUS ANTS DESCRIBED DUR- 

 ING THE DECADE 1903-1913 



Professor WILLIAM MORTON WHEELER 

 Bussey Institution, Harvard University 



In 1903 I described six gynandromorphous ants and 

 reviewed the previously recorded cases, seventeen in 

 number. Although many thousand ants have since passed 

 through my hands, I have failed to find any additional 

 cases. Other observers, however, have been more for- 

 tunate and have described seven within the past decade. 

 As these are all very interesting, it seems advisable to 

 give a brief account of them as a sequel to my former 

 paper. 



1. Lateral Gynandromorph of Cardiocondyla batesi 



FOREL. VAR. NIGRA FoREL.— SaNTSCHI (1903, p. 324, 



Fig. 5, i) 



This specimen is female on the right and partly male 

 on the left side. The male portions are sharply marked 

 off from the black female portions by their testaceous red 

 color. The line of demarcation, very clear in front, starts 

 at the anterior clypeal border and divides the head into two 

 nearly equal parts, but leaves the median ocellus on the 

 male side. It then divides the pronotum down the middle 

 and the three anterior quarters of the mesonotum. Thence 

 the line fades out on the right side so that the whole pos- 

 terior border of the mesonotum is male. Three quarters 

 of the prescutellum and the anterior half of the scutel- 

 lum are male. The epinotum and the abdomen are female 

 throughout, but the female genitalia are slightly asym- 

 metrical on the left side. The fore and middle legs on 

 this side and a portion of the mesosternum are male. 

 There are wings on both sides, but the anterior one on the 

 female side was lost after capture. Those on the left 

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