132 -4 )nicils E)iio»iolo^ical Society of A tucrica [\'< )1 . Ill, 



Fig. i:i(). Tips of maxillae and labium of Cossus cossus; copied from Lyonnct. 

 Twice the size of the oritjinal engraving. Only a small part of 

 Lyonnct s figure is shown, 

 g. Subgalea. 



d. f. Maxillae. 



e. Mentum. 



H. Maxillary palpus. The dotted line ruii.s lo the enlarged 



second joint characteristic of Cossus. 

 K. Labial paljji. 



I. Scleritc c. at the base of the spinneret. 

 T. Large cones. 

 Fig. 1;>1. Skin of Cos.sus cossus. Opened from the dorsal side, and with the 

 larger muscles removed to show the retractor mu.scles of the proleg 

 (2). The proleg itself is represented by an indistinct ring at the 

 right end of the muscle. The midventral line runs just to the left 

 of the mu.scle marked P. This is also a copy of a small part of one 

 of Lyonnet's figures, enlarged about twice 

 Fig. 132. Antenna of Melittia cucurbitae. (^Sesiidae). 

 Fig. 133. Antenna of Cacoecia cerasivorana (Tortricidae). 



PLATE XX. 



^^\RIOUs Families. 



Fig 133. Partly lateral view of spinneret and neighboring parts of Thyridop- 



teryx ephemeraeformis (P.-^ychidae) to show an unusual amount 



of development of the sclerites. 

 Fig. 13o. Ventral view of proleg of Lagoa crispata (Megalopygidae). 

 Fig. 136. Head of Argyresthia. (Tineina"). 



Fig. 137. Maxillae and laVnum of Cacoecia cerasivorana. (TortricidaeV 

 Fig. 138. Portion of skin of Rhodophora florida (.Xoctuidae) to show the type 



of granulation. 

 Fig. 139 and 140. Head and antenna more enlarged of Simacthis oxyacantha 



(TineinaV 

 Fig. 141. Antenna of Yponomeuta cagnagellus. (Tineina). 

 Fig. 142. Head of Depres.<aiia ])utridella. (Tineina). 

 Fig. 143, Head of Endrosis lacteella. (Tineina). 



