170 THE CANADIAN ENTOMOLOGIST. 



The front is flat, except in the Cydosiince, and the head is usually 

 small. The tongue is variable, and quite often aborted or very weak. 

 Thorax and abdomen are very variably developed. The antennae furnish 

 good characters for generic separation and sub-family groupings. They 

 are sometimes very short, sometimes excessively long, and again moderate 

 in length. In addition to what has been said of the venation it may be 

 added, that two definite series are recognizable, based on the origin of vein 

 ID of primaries. In some genera it arises from the sub-costal before the 

 end of the cell, in the others it is from the series at the end of the sub- 

 costal. The legs afford good characters. The spurs of the middle and 

 hind tibiae are sometimes wholly or partly wanting, and sometimes the 

 fore tibise are armed with spines or claws. 



The genitalia will furnish excellent characters when studied. I have 

 examined a number of species and find strong peculiarities. As the 

 notes are too fragmentary and the characters need illustration as well as 

 description, no reference is made to them. 



Finally, it may be as well to disclaim completeness, either of references 

 or description, though so far as the bibliography is concerned it is much 

 more complete than anything heretofore presented. 



Sub-family Cydgsiin/e. 



The characters of this sub-family have been given by me iji the Proc. 

 U. S. Nat. Mus., 1888, pp. 185-190. The produced tuberculate or 

 roughened front constitute the isolating character. Vein 10 of primaries 

 is from the sub-costal. 



Genus Cydosia, Westw. 



1841 — Westw. in Jardine Nat. Lib., XXXVII , 193. 

 1854— Wlk., C. B. Mus. Lep. Het., IL, 523. 

 1885— Moeschl., Stett. Ent. Zeit., XXXXVL, 206. 

 1888— Smith, Proc. U. S. N. Mus. XL, 187. 



C. 7iobUitella, Cram. 



1782 — Cramer, Pap. Ex., III., pi. 264, f G., Tinea. 

 1S16 — Hiibner, Verz., p. 168, Craineria. 

 1 84 1 — Westw. in Nat. Libr. 37, p. 193, Cydosia. 

 1854 — Wlk., C. B. Mus. Lep. Het., IL, 523, Cydosia. 

 1866 — H.-Sch., Corr. Blatt., XX., 119, is an Agaristid. 



