314 



THE PANORPOID COMPLEX. 



Additions and Corrections to Part 3. 



By E. J. Tillyard. M.A., D.Sc, F.L.S., F.E.S., Linnean Madeay Fellow of the 



Society in Zoology. 



(With one Text-figaire. ) 



During my recent %'isit to Xew Zealand, I was fortunate in <:)l)tainiiig' fairlv 

 plentiful supplies of the larvae and pupae of a Tiiyridid moih. Mora ra {Siciilodes) 

 subfasciata (Walk.). The dissection of the pupal wings of this species has 

 enabled me to fill in one of the gaps in the evidence in Part 3 of this work. 



This moth lays its eggs, which are flat, circular, fringed discs, somewhat simi- 

 lar to the Tortricid type, on the stems of the Parsonsia vines which are found com- 

 monly in the bush throughout both North and South Islands. The young larva 

 bores into the stem, and feeds there, causing a noticeable swelling in it. It 

 pupates in its own tunnel in the stem. 



The imago is not unlike Bhodoneura scitaria in appearance, but the fore- 

 wings are distinctly falcate at their tips. The genus Morova differs from Rho- 

 doneura in having Mi of the hindwing not directly connected with Rs, but joined 

 to it through the cross-vein m-r, while in the forewing it has Rs and R4 anasto- 

 mosing, the cross-vein ir being absent. In these characters, as Dr. A. J. Turner 

 has pointed out to me, this genus resembles the Australian genus Addaea very 

 closely. 



In view of the al)ove differences, it seems scarcely necessary to figure the 

 imaginal venation of Morova siibfasciata here. Reference should be made to 

 Text-fig. 98 on p. 677 of Part 3 (these Proceedings, xliv., 1919. part 3), where 

 the imaginal venation of Bhodoneura scitaria is shown. 



Text-fig. 113 shows the pupal tracheation, as drawn by me from dissections 

 made from pupae taken on January 1st of this year in the Woodhaugh Gardens, 

 Dunedin. For help in obtaining these specimens I am much indebted to my 

 friends, Mr. G. Howes and Mr. C. Clarke, of that city. 



The chief point of interest in the forewing is the condition of the radius and 

 its sector, which is shown enlarged in Text-fig. 113 b. There is only a single 

 radial sector, which forks in the normal Heteroneurous manner; the radial cell, 

 or areole, is present, but exceedingly narrow, and is not closed distally. The 

 condition in the imago, in which R4 anastomoses with Rs, is evidently due to the 

 suppression of the main stem of R4i:i. and the non-development of the cross- 

 vein ir. Comparing the imaginal conditions of this region in Moroni and 

 Rhodoueura, we are able to deduce from this that, in Rliodoneura pupal wings, 

 the condition of the radial sector of the forewing would be the typical one found 

 in the Tortricina and many Tineina, viz., a single Rs with an areole formed 

 between its two branches, this areole being closed distally by ir. Further con- 

 sideration shows us that, in Bhodoneura, as in Morova, the main stem of R^^j 



