ioo2.i . 99 



centre, whether this is related to the "window " in the joints of Micropteryx, or 

 whether it marks where a scale lias fallen off, is impossible to say, but T have never 

 been able to detect a scale on any antenna! joint, beyond the two or three basal 

 ones. The maxillary palpi are long, slender, extend outwards, and consist of five 

 joints, of which the fourth is much longer than the others. The labial palpi are 

 three-jointed ; there is a round projection (mandible ?) above base of maxillary 

 palpi. Haustellum not observed. 



Anterior tibiae with spines about one-fourth its length, arising tln-ee-fifths from 

 base of tibia, beautifully curved and fringed, apparently same in both sexes. 

 Neuration as in /. muscalella, except that in fore-wing nerves are evanescent over 

 the whole area of end of cell, and lb is simple at base, and la absent. Hind-wing 

 practically as in /. muscalella ; frenulum in $? of two hairs, beyond the frenulum 

 the costa carries several long hairs. 



S appendages, valves divide into a wide rounded process, and a narrower, 

 sharper one carrying a very strong bristle or baton, jointed at its base. 



Ovipositor as in Adela as regards having lost the ventral plate of 7th abdominal 

 segment, which persists in I. muscalella (both ventral and dorsal plates of 7 exist 

 in Eriocrania), otherwise very similar to that of Incurvaria, with a grand fringe of 

 bristles along margin of last ventral plate. 



One does not, without some trepidation, venture to disagree with 

 Dr. Arnold Spuler on any question of neuration. Yet I would venture 

 to submit the following: — In an essay in the Classification of the 

 Tineae, in the Verhandlungen der Deutsehen Zool. Gesells, 1898, 

 p. 161, he states that he has found in Crinopteryx familiella a form 

 which shows the reduction of vein IT of the hind-wing in several 

 progressive forms. The importance of the statement being due to the 

 fact that such forms as he figures, are supposed to make Crinopteryx a 

 connecting link between the Palceo and Neo-Lepidoptera. He gives 

 three figures, one of which (Fig. 13) is a not remarkable ordinary 

 neuration for a Neo-Lepidopterous hind-wing. This one, he states 

 however, to be an aberration. Now, it so happens, that I have 

 prepared a number of hind-wings for examination, and have also 

 looked over some dozens of unprepared imagines, and have met with 

 none that seemed to promise, that after proper preparation, they 

 would show any deviation from the type. This type is precisely the 

 aberration of Dr. Spuler above referred to. This is unquestionably, 

 overwhelmingly, the most frequent neuration of the hind-wing in 

 Grinopteryx. I have met with no trace of any other. It is indeed 

 remarkable that I have not done so, seeing that it is really rare to 

 meet with no neurational variations, if sufficient specimens of almost 

 any species be examined. But Dr. Spuler calls this an aberration. 

 Why? One can only guess that he had very few examples before 

 him ; and this is the more likely, as the species is not abundant in 



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