I 



Mr. A. G. Butler on Corean Lepidoptera. 277 



by any later writer, it seems desirable to notify their presence 

 on specimens in the British Museum collection. 



These specimens were presented to the British Museum by 

 the Liverpool Free Museum in May 1867, and were obtained 

 from South Australia. 



The ocecia are semicircular or somewhat subgiobose, slightly 

 everted at the margin, covered by the avicuiaria, into the 

 cavity of which they project, and continuous with these at their 

 basal portion, which, being attached along the whole width of 

 the cells, thus presents a very wide mouth. In all the prepa- 

 rations made, they occur only on those marginal cells on which 

 the very large avicuiaria are placed ; and owing to the super- 

 position of these, the nature of the surface is rendered some- 

 what difficult to determine with certainty. It seems, however, 

 to be smooth or slightly granulated. A reference to the figure 

 given by Prof. Busk will help to give an exact comprehension 

 of the relative positions of the ooecia and avicuiaria ; it is only 

 needed to increase the size of the marginal avicuiaria there 

 given, especially the width of the basal part, and to add sub- 

 globose ooecia arising within them and continuous with them 

 at the base. 



A peculiar and interesting character of the cells, and one 

 that is represented in the figure given by Prof. M'Coy, is the 

 presence, along each side of the wall, of a " row of minute 

 aculeate spines or denticles " placed opposite each other at 

 short intervals. Seen under a high power of the microscope 

 these are not simply spines, but hooks with the curved portion 



turned downwards. 



It seems worth while to remark that in the figures given 

 both by Prof. Busk and Prof. M'Ooy the whole drawing has 

 been reversed (apparently not having been reversed on the 

 stone), so that both the suberect blunt spine which occurs on 

 ttie upper left margin of the cells [left to an observer lying as 

 it were in the cell, and looking through the mouth) and the 

 mandibles of the avicuiaria, which, as Prof. MSGoy observes, 

 all open towards the same direction (that is, towards the left 

 side of the cell and the proximal portion of the zoarium), have 

 become placed on the right. 



XXXVIII. — On a small Series of Lepidoptera from 



By Arthur Gr. Butler, F.L.S., F.Z.S., &c. 



M 



from 

 as it 



