36.0 Porritt: Nottinghamshire Neuroptera and Trichoptera. 



genus. That the mite has passed beyond the nymphal stage is 

 evidenced by the well-developed genital and acetabular plates, 

 as seen in Fig. 2. 



Dr. Robt. H. Wolcott, of the University of Nebraska, has 

 published in the 'Studies from the Zoological Laboratory,' 

 May 1901, the description of a mite in some respects resembling 

 A. mollis ; he makes of it a new genus, and calls it Steganopsis 

 arrenuroides. It differs, however, in two most important par- 

 ticulars. He describes it as possessing a chitinous exoskeleton, 



covered by the striated skin, and 

 figured like network. There is no 

 such structure in the mite now- 

 described. He also figures and 

 describes the acetabula, as set into 

 the meshes of the chitinous exo- 

 P*s- 2. skeleton ; whilst in A. mollis the 



acetabula are set on distinct chitinous plates (see Fig. 2). The 

 genital plates also differ : in Stegajiopsis they are figured and 

 described as, two movable lunate valves; whilst m A. mollis 

 they are door-like (see Fig. 2). It might perhaps be as well to 

 mention that the plates, on the left of the median line, in this 

 figure are in outline only ; but on the other side the lines on the 

 genital plate, and the acetabula on the acetabular plate, are 

 distinctly figured. I think It probable that the mite, as it 

 became older, would change somewhat. I have found this to 

 be the case in the males of this genus. Unfortunately, F have 

 not met with an example this season, but if I again do so I 

 intend to keep it alive, if possible for some time, and watch 

 development. Should any other observer come across it, I hope 

 he will take the hint and publish his notes in 'The Naturalist,' 

 as the subject is of great interest. 



Nottinghamshire Neuroptera and Trichoptera. — Some 

 little time ago Prof. J. W. Carr sent to me for determination a 

 number of neuroptera and trichoptera taken recently in Notting- 

 hamshire, and among the names I sent him were the following, 

 which may be worth recording : — Raphidia notata and R. 

 xanthostigma^ ''^Chjysopa septempiinctata, '^Hemerobius elegans^ 

 Limnophilus fiiscicornis, Silo pallipes, '''Notidobia ciliaris, Mysta- 

 cides loiigiconiis, Hydropsyche guttata, etc. Of these the three 

 species marked have not yet been recorded for Yorkshire. — 

 Geo. T. Porritt, Huddersfield, loth November 1905. 



Naturalist. 



