A. C. OUDEMANS, NOTES ON ACARI. 45 



sart in Bull. Soc. ent. France, p. 419. — 1897 Syringobiina 

 Berlese. A. M. S., Crypt. I. p. 37.« 



»Der vorigen Sektion ähnlich, aber Analnäpfe zuweilen 

 fehlend oder klein und unregelmässig gelagert und entwickelt. 

 Hinterrand des Abd. beim reifen n nur mit Borsten versehen, 

 ohne paarige schwert- oder hornförmige Anhänge. — In der 

 Spule der Federn lebende Sarcoptiden.« 



Oh dear! we read here »zuweilen fehlend oder klein« ; indeed 

 a bad characteristic especially for a key! If we ask what is 

 »die vorige Sektion,« our book answers us: the Plerolicheae, 

 in which, according to the key on p. 20 the 



"Hinterbeine bei (^ und 9 ziemlich gleichmässig entwickelt 

 (sein).'' 



But Syringobia chelopus cT has enormously developed legs HI ! 



So one should say Syringobia chelopus does not belong to te 

 Pterolicheae, but either is closely allied to the genus Pteronyssus, 

 or it belongs to the badly characterized subfamily oî Dermoglypheae. 



Let us read further: »Hinterrand des 9 nur mit Borsten 

 versehen«, which also fits on Pteronyssus ii.vi.à. oihex Analgednae. 

 The inhabiting the spools of feathers is not characteristic, 

 for other Änalginae often do so. 



In consulting the first diagnose of the Dermogiyplieae in the 

 Journal de Micrographie, 1884 (I.e. see hereabove p. 44), we 

 find »pas de ventouses copulatrices chez le mâle, pas de cuirasse 

 dorsale." These are good characteristics, though they may be the 

 result of degeneration. But our Syringobia is dorsally well 

 cuirassed, and has well developed copulation- suckers! 



Again, in 1885 (Trouessart, I.e., see hereabove p. 44) we 

 read: » Dermoglyphe's : Plaque notogastrique nulle ou rudimen- 

 taire chez l'adulte dans les deux sexes, qui ne difi'èrent abso- 

 lument que par l'organe génital ; ventouses copulatrices rudi- 

 mentaires ou nulles chez le mâle.« 



In 1896 Trouessart (l. c. see hereabove p. 44) diagnoses the 

 section of Syringobieae as follows: 



