92 Mr. H. St. J. K. Donisthorpe on 



Cockerell describes the head of a female with long massive 

 jaws and part of the body. I have seen three dealated 

 females : one specimen [I. 8702] exhibits the head with 

 massive jaws, outline of thorax, petiole and gaster, and part 

 of the femora of all six legs. A number of eggs are visible 

 within the gaster. Its measurements are as follows : — Length 

 12*5 mm. ; petiole 1*2 mm. ; gaster, long 3'5 mm., broad 



3 mm.; head, long 3 mm., broad 2*5 mm. The second 

 specimen [I. 8711] possesses the left intermediate leg com- 

 plete. It measures: — Length 12*7 mm.; head, long 3 mm., 

 broad 2'6 mm. ; petiole 1*5 mm. ; gaster, long 3*5 mm., broad 



4 mm. The third specimen [I. 9335] consists only of a 

 thorax, petiole, and part of the gaster with some of the 

 segments visible, and a bit of one femur. A specimen of 

 part of a winged female [In. 17313] shows the head with 

 large jaws and eyes, thorax with scutellum fairly distinct, and 

 traces of three wings, the petiole, and the two anterior legs. 

 The head is 3 mm. long and 2'7 mm. broad. 



Oligocene at Gurnet Bay (Brodie, A' Court Smith, Ilooley). 



Plesiotype (wing) (no. 63), I. 8882 (PI. V. fig. 11) ; 

 plesiotype (dealated ?) (no. 6), I. 8702 (PI. V. tig. 12). 

 Other specimens : — 



I. : 8335, 8705, 8708, 8711. 8797, 8806, 9151, 9548, 9655, 

 10368, 10386. 



In.: 17085, 17115, 17233, 17241, 17243, 17273, 17313, 

 17342, 17416, 17418, 17419, 17420. 



H.: 27 a, 85, 97, 98, 99, 100, 102, 103, 111, 113, 167, 

 327, 370, 392, 420, 483. 



On one fragment of rock [(68), I. 9613], bearing remains 

 of Oecophglla wings, are several specimens of what appear to 

 be workers. These are indistinct, but show the outline of a 

 head, thorax, petiole and gaster, and some legs, which may 

 well belong to Oecophglla. These ants are small, being only 

 3'5 mm. in length (the smallest worker of O. smaragdina in 

 my collection measures 4 mm.), and I am quite unable to 

 decide to which of Cockerell's other species they should be 

 referred. I should say they were too small for 0. megarche. 



I have been quite unable to satisfy myself to which of 

 Cockerell's other species the rest of the two' hundred and 

 forty-five specimens of Oecophylla belong. They are all 

 smaller than specimens of 0. megarche. A chart of the 

 measurements shows that they vary in every possible way — 

 in size, size of wings, and all other measurements. Nor does 

 it appear to me that any good purpose would be served by 

 creating a number of new species, which would probably 

 embrace or overlap Cockerell's 0. atavina and O. perdita. 



