L76 LORD VVALSINGHAM. 



A specimen received from Prof. Riley, which was sent to him by Mr. 

 Chambers as Harpalyce canusella, proves that this species, common in 

 Texan collections, is th< _> ■ ' and 



described by Zeller. The three species placed by Chambers in his genus 

 Harpalyc I Ide, do not differ, so far as I am able 



to ascertain, from the most usual forms of Zeller s genus Oryptolechia. 



22. t'ryptolechia quercieella, Clem. 



Psilocorcis quercieella, Clem. Proc. Ac. Nat. Sci. Phil. 1860, p. 212. 

 Cham Bui V G. Surv. 1878, p. 84 i 



. i !ham. Can. Ent. iv. j>. 1 31 . vi. p. 231 - 

 vrolechia cressonella, Cham. Bull. U. S. G. & G. Surv. ISTs, pp. 85, 86. 

 ell. var. Verb. z.-b. Ges. Wien, 1873, p. 242. 



Mr. CbaTr T. S. (1. & G. Surv.) discusses at length the dif- 



ference between his Oryptolechia (originally Hagno) fag inella. and the 

 undescribed spi •■ which he proposes the name u cressonella ," and 



compares them both with Oryptolechia (originally Psilocorcis) querci- 

 eella, as described by Clemens and recognized by Zeller. He ends by 

 expressing some hesitation as to their distinctness from each other, and 

 writes, "with fuller collections of bred specimens of all the supposed 

 s ii is not improbable that they will be deemed at most only phyto- 

 phagic varieties of a single species." Having carefully compared a con- 

 siderable number of specimens from Texas, from Missouri, and from 

 North Carolina. I am unable to discover any constant and reliable char- 

 acters by which they can be distinguished from each other. Two exam- 

 pies from Miss Murtfeldt's collection, which have the appearance of bred 

 specimens, faithfully represent the two varieties quercieella , Clem., and 

 cressonella, Cham. There seems to be a considerable amount of vari- 

 ation in the distinctness of the slender transverse lines, in the intensity 

 of the coloring of the head, thorax and fore wines, in the separation 

 or amalgamation of the spots on the apical margin, and in the presence 

 or absence of diffuse costal spots. The hind wings also are lighter in 

 some specimens than in others. I have no knowledge of the insect 

 described as Oryptolechia obsoletella, Zeller (Verh. z.-b. Wien, 1873, p. 

 242); but a specimen in Prof. Fernald's collection agrees with Zeller s 

 description, and leads me to think it not impossible that it may be found 

 to be a small dark variety of the female t>i this i ies. 



728. ? C'ryptelechia cretiicca. 



Oryptolechia crelacea, Zell. Verh. z.-b. Ges. Wien, 1ST.'., p. 243. 

 Harpalyce albelia, Cham. Can. Ent. vi. p. 235; Hist. ii. p. 1 so, and 



Index. 

 Ide albdla, Cham. Journ. Cin. Soc. Nat. Hist. ii. p. 180. 

 This, originally from Miss Murtfeldt's collection, is without doubt 



