102 GEO. D. HULST. 



two subfaniilies, the first Phycitin^ Rao-., the second, to which would 

 be given Mr. Ragonot's second subfamily name " Anerastinie," were 

 it not that Anerastia does not belong to this gronp ; I propose, there- 

 fore, as the name of the second subfamily Peoriinae, with Peoria Rag. 

 as the typical genus. 



The first American species described were cosmopolitan, and were 

 described by Haworth and Hiil)ner from European examples. The 

 first distinctively American species were described by Prof. Zeller. 

 Since that time one or more species each have been described by many 

 authors in all sorts of places and publications, the largest number 

 being by Mr. Ragonot, in a paper privately issued in Paris, Decem- 

 ber, 1887. 



The species of the Phycitldoe are in many respects as compared 

 with each other very diverse in their structural characters. Indeed, 

 there is scarcely any detail of structure in which marked variation 

 may not be found ; the variability is especially observable in the 

 shape and ornamentation of the labial pal|)i, the maxilhiry palpi, 

 the tongue, the clypeus, the antennte, the wings, the venation, the 

 abdomen and the genitalia. There is also a marked variability in 

 some respects in the sexes of the same species, notably in the maxil- 

 lary palpi, the antennae, and in the ornamentation of the wings and 

 abdomen. 



STRUCTURE OF THE IMAGO. 



The Head and Appendages. — The head, as a whole, is uncon- 

 cfealed, prominent, free, and usually nearly as broad as the thorax. 



Labial Palpi. — The labial palpi consist of three separate mem- 

 bers. These are very variable in length and direction as compared 

 with each other in the various species. In most of the species, and 

 these the typical genera of the family, the labial ])alpi are erect, 

 somewhat recurved, reaching to or beyond the summit of the head. 

 In some species they are weakly ascending, in numerous others they 

 are horizontal or drooping ; sometimes they are short, hardly more 

 than one-half the head, in others long, equal in length to the head 

 and thorax combined. Sometimes they stand rather widely apart ; 

 sometimes they are closely appressed together and beak-like. The 

 members of these organs also differ very much as compared with 

 each other. The basal member shows comparatively little variation, 

 and is generally short. The middle member is the hmgest, the end 

 member often the shortest. In some species the middle member is 



