366 bulletin: museum of comparative zoology. 



The homologies of the head of the female were worked out in Am- 

 boina before I had seen Adensamer's or Monticelli's papers. The 

 former describes Ascodipteron phyllorhinae as having a thin rostrum and 

 large maxillary palpi. Ascodipteron tabulatum is described by Monti- 

 celli as having the proboscis formed by the maxillary palpi. If this 

 be correct then A. speiserianum differs fundamentally in the anatomy 

 of its proboscis. 



Ascodipteron australiansi, sp. nov. 



This species from the Mossman district of North Queensland is 

 very closely allied to A. speiserianum and like it occupied the same 

 position at the base of the ear of Miniopterus schreibersi. The single 

 imbedded female that I procured differs from A. speiserianum in the 

 following points : — Head and thorax smaller and darker, notum more 

 convex and hairy, spines round, the exposed posterior part of the 

 abdomen stouter and shorter. The larva, of which there was a full- 

 grown specimen in the uterus, has the spiracles in slightly different 

 positions, being much nearer together than in A. speiserianum (Plate 

 2, fig. 17, a.b., c.d.). 



My thanks are due to Dr. David Sharp and Mr. Hugh Scott for 

 reference to literature and other information while in the Malay 

 Islands, to Dr. Paul Speiser for naming my Nycteribiidae and Strebli- 

 dae and to Dr. F. S. Monticelli for his paper on A. lophotes; also to Mr. 

 Oldfield Thomas for identifying the bats. 



The figures are free-hand drawings of the objects as seen through 

 the microscope and may not always be in correct proportions, except 

 Fig. 3, 4, 11, and 17 which are in proportion. Figs. 3 and 4 were 

 kindly drawn by Mr. W. R. Potton, but unfortunately he had only 

 shrunken spirit specimens. 



