( 



} 



possessed of a very marked power of stridulation (stridulating 

 organ on longitudinal transparent bar on fore-wing), known 

 in New South Wales as the " Whistling Moth " ; (2) Dodonidia 

 hehnsi, Butler, a rare Satyrid butterfly from New Zealand, 

 and (3) a gigantic species of the TKysanurid genus Japyx, 

 found at Picton, New Zealand. 



Mr. C. O. Waterhouse exhibited a diagram of the mouth 

 of one of the Mallophaga {Lxinohothrium titan). He said 

 that in 1885 Dr. Grosse (Zeits. Wiss. Zool., 35, p. 537) pro- 

 pounded the theory that the palpi at the side of the mouth 



Under-side of the head of Lmmobothrium with the left 

 mandible and maxilla more enlarged. 



a, Labrum. b, Hypopharynx. c, Labium. 



were not maxillaiy, but labial, and that the single joints 

 considered by some authors to be labial palpi were the para- 

 glosssB. Dr. Grosse moreover figures what he considered to 

 be the true maxilloe as somewhat ovate lobes lying in the 

 mouth cavity, unconnected with the large lateral palpi. 

 Mr. Snodgrass in the "Occasional papers of the Californian 

 Academy of Sciences" (vi, 1899, p. 149) has given similar 

 figures. 



Both these and other authors have overlooked the fact 

 that these lobes are connected by a narrow chitinous strip 

 with the lateral palpi, and are in fact the lacinise, curiously 

 bent it is true, but presenting no morphological difficulty. 



