T6 PROCEEDINGS OF THE ACADEMY OF [1881. 



a part of the a^sophagus as drawn from the petiole. The contin- 

 uation of the same, ce. c, within tlie abdomen is shown : also the 

 relation of gizzard to both crop and stomach. X 14, Page 53. 



Fig. 60. View of the intestine from the posterior pole of the 

 abdomen to the anus. X 35, Page 56. 



Plate IX. 



Fig. 61. S^'nthetic figure exhibiting the entire course of the ' 

 alimentary canal, from mouth to anus. Page 56. 



Figs. 62-^0 compose a series illustrating the progressive disten- 

 sion of the crop from the normal condition to that of the honey- 

 bearer. Page 56. 



The series begins Avith Figs. 63 and 66, where the crop is normal ; 

 in fig. 66 the crop has shrunken after distension. 



Fig. 64. Worker crop, half filling abdomen. 



Figs. 62, 65. Workers-major, or semi-rotunds, with distension 

 of crop still further adA'anced. 



Fig. 67. Abdomen of a worker-minor, showing same process ot 

 distension. 



Fig. 68. Abdomen of a honej'-bearer, opened at. the slit, s, to 

 puncture the crop and exhibit by its shrinking away the fact that 

 the crop fills the cavity of the abdomen. Page 57, 



Fig. 69. Full crop of honey-bearer, with the lower part of the 

 alimentary canal shown through the abdominal wall against which 

 it is pressed, and evidently in healthy condition. Page 57. 



Fig. 70, Abdomen of honey-bearer, the full crop pressing the 

 gizzard, stomach, etc., into the cloacal cavity-. Page 57-8. 



Fig, 71, Abdomen of the Australian carpenter-ant, Camponotus 

 inflatus, exhibiting the characteristic distension of M. hortus- 

 deorum. Drawn from an alcoholic spe(!imen. The figure is 

 somewhat flattened by pressure ; other abdomens in my possession 

 are quite spherical. The gizzard, stomach (ruptured and stretched) 

 and intestine are shown in the same relative position as in the 

 honey ant. Page 58. 



Plate X. 



Fig. 72. Side view of honej^-bearer, M. hortus-deorum. X 3. 

 Fig; 73. Dorsal view of same. X 3, Page 69. 

 Fig. 74. Honey-bearer of Camponotus injiatus, dorsal view 

 X 3, Page 59. 



Figs. 75, 76. Male of M. hortus-deorum. X 5. 



