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THE AMERICAN NATURALIST [Vol. XLVIII 



is even more strongly indicated by the facts just recorded than by its 

 morphological peculiarities. 



3. Lateral Gynandromorph of Anergates atratulus 

 Schenck. — Adlerz (1908, p. 5, Fig. 2, a, b, c, d and e) 

 An imperfect lateral gynandromorph, male on the left, 



female on the right side, resembling the preceding speci- 

 men, but with the dark female color more pronounced on 

 the male side of the head. There were well-developed 

 wings on both sides of the thorax, which was of the female 

 form though dark on the right and pale on the left side, 

 except the epinotum, which was grayish yellow through- 

 out. Abdomen in color and form almost typically male, 

 with the genitalia well-developed on both sides, but with 

 a feeble mid-dorsal impression recalling the condition in 

 the virgin female. Legs of the female type, except the 

 left fore one, which is somewhat shorter and thicker as in 

 the male and with the tibial spur (strigil) cleft but not 

 pectinated. 



Dissection showed the reproductive organs to be in the 

 same condition as in the preceding specimen; i. e., they 

 were present only on the left side and consisted of a 

 rather large vesicula seminalis with its vas deferens. No 

 traces of female reproductive organs, nor of a sting or 

 poison apparatus were to be found. 



This specimen was taken from the same nest as the 

 preceding. 



4. Lateral Gynandromorph (Ergatandromorph) of 

 Formica sanguinea Latreille. — Donisthorpe (1909, 



p. 464, Fig. 1) 

 A nearly complete lateral ergatandromorph, with the 

 right antenna, mandible and eye, and right and median 

 ocellus male and the left antenna, mandible, eye and ocel- 

 lus of the worker type. Head black, except the left 

 mandible, left half of clypeus, left cheek and a small patch 

 in front of the eye, which are red. Thorax and petiole 



