298 THE PANORPOID COMPLEX, i., 



in favour of this new division, will be more fully appreciated 

 when we have completed our study of the Microptprycfidw. 



Adopting, then, the above terminology, we may now proceed 

 to study in more detail the type of wing-coupling apparatus to 

 be found in the two divisions or Suborders. 



i. Suborder HOMONEURA. 



Family Micropterygid^ i^»ens. J at.). 



(Plate xxix., figs.1-4, and Text-fig. 10). 



In this family, I made preparations from the wings of all five 

 genera available to me, viz., Sahatinca, Micro'ptfivyx, Mnemonica, 

 Eriocrania, and Mnefiarchcea. 



I should like here to thank the many kind correspondents who 

 have supplied me with specimens of this family, at all times diffi- 

 cult to obtain; and, in particular, Mr. Meyrick, for a series of 

 set specimens representing all five genera; Mr. A. Philpott, for 

 various New Zealand species, both set and in spirit, and for his 

 valuable observations on the flight of Sabatinca; and Mr. K. J. 

 Morton, of Edinburgh, for a large number of spirit-specimens, 

 which yielded excellent mounts and dissections. 



In dealing with this family, I was at once struck by the 

 behaviour of the so-called jugum in cleared and mounted speci- 

 mens. Instead of arranging itself as a free lobe at the base of 

 the dorsum of the forewing, I found that it always insisted upon 

 remaining twisted under the wing itself, and that this position 

 could only be altered with difficulty, by drawing the jugum out 

 from under the wing with a needle. (Plate xxix., fig.l, and Text- 

 fig. 10a, c/). 



Referring to figures of this jugum already published, I found 

 that Comstock(l), Forbes (8), and Meyrick (3, 4) had all figured it 

 as a projecting lobe, whereas Packard (10, 11) alone had depicted 

 the true position; though without, apparently, any idea of its 

 significance. 



Turning next to the examination of cleared and descaled 

 mounts of the hindwing, I found invariably from three to six 

 lar^e bases of insertion (Plate xxix., fig.3, and Text-fig. 10, h.fr.) 



