( 114 ) 



ENIGMAS STILL UNANSWERED. 



11. "An Elachista larva, found by Mr. Scott at the end 

 of April, mining in leaves of Scirjius lacustris." No one 

 appears to have again found this. 



18. " A Lithocolletis larva, mining the upper side of birch 

 leaves." Professor Zeller is confident this ought to produce 

 L. Betulce. 



20. " A Depressaria larva, found by Mr. Boyd, May 2nd, 

 1855 (it was then young), feeding on a leaf of parsnip (Pas- 

 tinaca sativa), under a turned-down corner ; this was expected 

 to be Depressaria Don glabella.'' This has not again been 

 met with. 



26. " A Nepticula larva, mining the leaves of birch ; the 

 mine has some resemblance to that of Nep. luteella, but the 

 central track of excrement is broader, not so mathematically 

 linear." I have again met with this larva, but have not suc- 

 ceeded in breeding any. 



27. " A Gelechia ? larva, feeding in the heads of yarrow 

 (Achillea millefolium)." 1 am not aware that this has been 

 collected this autumn. 



28. " A Coleophora larva, with a case similar to that of 

 limosipennella, feeding on birch." None were reared ; this 

 autumn the larvae were collected freely by Mr. Shield at 

 Highgate, and by myself at Abbey Wood. 



29. " A Coleophora larva, with a case similar to that of 

 C. siccifolia, feeding on birch." This has not been reared, 

 but the larva has been collected near Frankfort-on-the-Main 



