BY DE. H. SCHOTT. 121 



With reference to Paronella appendiculata, Handschin states 

 that this species had not been examined as to the occurrence 

 or the absence of dental spines. In my description 1 say 

 the following : — 



"Hinterrand der Dcntes mit einer Eeihe Wimperborsten 

 von demseiben Typus wie die zwei Distalborsten," and that 

 is all that can be said about the thing. No spines occur. 



Aphysa Handsch. 



In Dr. Mjobergs collection from Mt. Murud there are 

 eight specimens which undoubtedly have to be referred to that 

 section of the genus Paronella, which Handschin comprises 

 under the new genus Aphysa. On account of its great 

 variability this species has caused me great trouble to classify. 

 The antennae of nearly all specimens are broken, and the 

 joints left vary in length as do also the colour and the size of 

 the tergites, dentes and mucroues. 



Some specimens are yellow with distinct black cross stripes, 

 others show no markings whatsoever, some have Ant. I about 

 twice as long as the diagonal of the head, whereas in others 

 these two segments are nearly of the same length. The 

 mucronal segments are in some individuals comparatively 

 short and broad (dentes about fourteen times longer than 

 mucrones), in other ones long and narrow (dentes about eleven 

 times longer than mucrones). The most peculiar variation is, 

 however, that in certain individuals the dental segment are 

 armed, in others unarmed. 



It seems perhaps simple to divide up the material into two 

 different species for instance one with distinct crossbands, 

 long antennae, armed dental segments and short mucrones, 

 another one with indistinct or no markings at all, short joints 

 of antennae and long mucrones, which should have been 

 good enough, if the variations had gone parallel as mentioned 

 just now. 



But only the characters unarmed dentes and long mucrones 

 on one side and armed dentes and short mucrones on the 

 other correlate with each other ; all other characters vary 

 independently of each other and also of those just mentioned. 



9. Aphysa dubia n. sp. 



Extremes of variations in the relative size according to 

 measurement of all individuals. 



