BY DR. H. SCHOTT. HI 



Tullberg as occurring on the tibiae of the S'ira-species is also 

 plainly visible and sometimes becomes so deep that the joint 

 here appears to be bent. The eyes are more widely separated 

 from each other, with the result that the "spots" appear more 

 elongate. 



Often the liead and abdomen of these forms are richly beset 

 with serrated, club-shaped setae and not seldom the posterior 

 abdominal segments possess extraordinarily long serrated setae, 

 which however cannot be taken as botryothrichs. 



From what has been mentioned above the genus Lepido- 

 cyrtus'seeuis to be well defined. Ii;i order to classify properly 

 also the other forms I am of the opinion that my collective 

 genus I.epidocyrtoides must be divided up and it seems to me 

 that the so often attacked character "mesonotum prominens" 

 should not be entirely discarded. 



As type of the genus Lepidoeyrtns I propose to keep L. 

 cuciiUaris and would like to add also Lepidoeyrtns striatus 

 which also is characterized by pointed scales. Unfortunately 

 the latter form was never examined as regards the antennal 

 sensitive organ for reasons given in my paper on Dr. Mjoberg's 

 Australian Collembola. 



For the S'lra-like forms of the genus Lepidocyrtoides I 

 suggested the expressive name Lepidosira. To this I refer 

 without hesitation L. australicus , L. ^agynarins, L. coeruleufi 

 and L. cinctus. 



In this connection it deserves to be mentioned that 

 Handschin already has extracted L. spinosus from the 

 Lepidocyrtoides-gYonp and placed it in a genus 'of its own, 

 Acanfhocijrtus. Later on he expresses in a letter to me 

 his thought of possibly entering this form into the genus 

 Acanthurella. Personally T feel inclined to let it form a 

 separate genus. The dental spines are here arranged in several 

 rows and are comparatively small, vitreous and simple, whereas 

 the spines in the Acanthurella-f,\:>ecie?, form one row and are 

 serrated. Also the chaetotaxy of the furcula of both genera 

 is entirely different. 



Furthermore the genus Acnnthocyrtns is characterized by 

 pointed scales and retractile terminal organ of Ant. IV and 

 2-jointed tibiae which is not the case with Acanthurella. 



About the systematic position of Lepidocyrtoides longicornis , 

 L. flavocinctiis and L. angii status I cannot at the present 

 moment express any definite opinion. 



