1905.] 157 



have a more rounded posterior extremity ; in this group the creniaser is a flat 

 pen-like spine with a broad end ; in most of tlicse the end is square with the corners 

 rounded ; in S. hyerana the corners are notched. In the male pupa also the wing 

 and leg tips project bejond the third sibdominal segment, and without being attached 

 to fourth, are accommodated in a hollow of that segment, with weaker and thinner 

 integument. The maxillarj palpi are carried (on dehiscence) at the external angles 

 of the maxilla, whilst in other of these Tortrices they are apt to adhere to the top 

 of the first leg cases. Even in hyerana it is difficult to mount the head pieces 

 without breaking them off, so delicate is the portion of ehitin that forms their at- 

 tachment to the maxillae. 



There is no other very definite point I have been able to seize that would make 

 a description of this pupa inapplicable to a considerable number of other species. 



The maxillary palpus does I find adhere to the top of tlie first leg piece on de- 

 hiscence in a certain number of pupae, and to the face or eye-piece in others ; so 

 that probably there is similar variation in other species. When it is attaclied to 

 maxilla it is by delicate films marking the true organic connection ; in other at- 

 tachments it adheres by the proper sutures not having yielded. Before emergence 

 the halves of tlie proboscis are the merest threads in the wide maxilla cases ; still 

 the motlis use them readily and efficiently for feeding. 



The characters of the larva and pupa not here noticed will 

 be more easily understood from the annexed diagrams than from 

 descriptions. 



Plate VII. 



EXPLANATION OP PLATES. 



Plate II. — Plant of AspJiodelus microcarpus, ends of leaves remain fastened to- 

 gether (on right of plate) by Tortrix unicolorana, but plant is prac- 

 tically uninjured. 



„ III. — Plants of A. microcarpiis, of which three, 1, 3, 3 are wi'ecked by 

 Hastula hyerana, 4 (in background) untouched. 



„ IV. — Imagines of Hastula hyerana ; light males at top {hyerana), dark 

 males below them {marginata, Wlsm.), then light females and dark 

 females. This plate is not so successful as might be desired. 



„ Y. — Group of eggs of K. hyerana, x 11 dianis. 



„ VI. — Portion of same group, x 20 diams., from Photos by A. E. Tonge, Esq. 



J, VII. — 1. Sketch (under camera) of tubercles and hairs of larva of H. hyer- 

 ana on prothorax, metathorax, 3rd abdominal, and 7th, 8th, 9th, 

 and 10th abdominal, with anal comb. 



2. — Ventral view of pupa, S , with enlarged view of cremaster. 



3. — Side view of 5th abdominal segment of pupa. 



4.. — Pupal parts of head and thorax after dehiscence, showing maxillary 



palpi attached to maxilla, and eye cover attached to dorsal head 



piece. 



