sept. 1898.] Dyar: Life Histories of N. Y. Slug Caterpillars. 155 



and is usually darker around the edge and on the latticed ridges. The 

 exact shape is variable, but the points mentioned form its boundaries 

 between which the outline may be contracted or expanded. Length, 

 6.7 to 9.5 mm. 



Cocoon with the characters of the group. 



Food-plants : Oak, wild cherry, birch, hickory, chestnut, witch- 

 hazel and sour gum have been observed. 



Additions and Corrections. 

 As it was necessary to make the corrections to the account of T. 

 pallida with this plate, I have included all additions and corrections that 

 have occurred to me to date, to all the articles that I have published on 

 Eucleid larvae in this Journal. Corrections to the introductory article 

 will be deferred to the concluding remarks. 



Apoda y-inversa Packard. 



This Journal, III, p. 151. Omit the reference to the larva. A. 

 y-inversa larva was undescribed previous to our article. 



This Journal, III, p. 152, lines 8, 9. Omit the words "in which 

 the larva does not feed." P. 154, Stage I. — Add " The larvae feed in 

 this stage. Length, .9 to 1.5 mm. Subdorsal setae of joints 5, 7, 9 

 and 11 lean outward, lateral of joint 5 leans upward." 



Th ; s Journal, III, Plate VI, Fig. 1. The alternation of the setae is 

 wrongly represented. 



Sibine stimulea Clemens. 

 Comparison may be made with the allied South American species 

 referred to by me (Can. Ent., XXIX, 77). 



Tortricidia pallida Herrich-Schdffer. 



This Journal, IV, 167, et seq. Special structural characters, line 

 5 of paragraph, omit the words " smooth or;" p. 168 line 10 for " setae 

 practically" read "tubercles." 



Affinities, Habits, etc. Read as follows : This larva is typical of 

 the red-marked smooth Eucleids, a subdivision of the Palaearctic group. 

 It is most nearly allied to T. testacea, less closely to H. flexuosa. It 

 represents a more primitive state than Apoda in that setae \a and \b on 

 joint 4 and i and ii on joints 5 to 12 are partly united into a furcate or 

 Y-shaped spine, both limbs of equal length, whereas in Apoda one limb 

 has been reduced to a slight prominence. 



