North American Goleophora. 431 



In referring C. rufolutedla, Cham., to C. carycefoliella, 

 Clem., Mr. Chambers remarks that rufoluteella is known 

 only from specimens captured one mile from hickory. 

 It seems not impossible that I may have rightly identi- 

 fied Professor Riley's specimen as the true C. nifolnteella, 

 and that it may be really distinct from the hickory- 

 feeding species ; but further evidence is required to de- 

 cide the point. This case is represented on Plate XVII., 

 fig. 18. 



By far the most interesting larval case received from 

 Professor Riley is that which belongs to a small, rather 

 inconspicuous, sj^ecies allied to C. unipunctella, ZelL, and 

 probably to C. himinimaeulella, Cham., the j^osition of 

 the two small spots on the fore wings being probably 

 sufficient to separate it from both these species. 



The case may be described as pale dust-coloured, 

 spiniform, and octagonal, tapering to a blunt point, 

 beautifully constructed of elongate particles of larval 

 excrement built up in a perfectly symmetrical arrange- 

 ment, which will be best appreciated in the figure which 

 accompanies this j)aper. On each flat side of the octa- 

 gonal figure the little bricks of frass are woven in so that 

 the end of each one fits exactly between the ends of the 

 two similar bricks of the adjoining facies to its right and 

 left. From the upper edge of the anterior opening of 

 the case a loose expanded veil of the same building 

 material, connected by silk, is arranged so as to protect 

 the head of the feeding larva, and this veil is probably 

 gradually taken up and utilised in the much closer woven 

 structure of the octagonal case itself. 



I received some years ago at Washington, from 

 Professor Townend Glover, a somewhat similar case 

 from leaves of vine, but Professor Riley informs me 

 that his specimen was found on leaves of Persea caro- 

 linensis. 



I would suggest the name CoUophora octagonella for 

 this species, if, as I believe, it is still undescribed. The 

 case is represented on Plate XVII., fig. 17. 



The following are species which I am unable to recog- 

 nise by comparison with any published descriptions. 

 These, with one exception, were collected by myself in 

 California and Oregon, in 1871-2. 



It is very probable that some at least of the numerous 

 species already noticed by American lepidopterists as 



