128 
Psyche 
[June 
been struck by the largeness and length of the coxa [han- 
dle] of the third [i. e. fourth] pair of legs ; this last dimen- 
sion equals at least half that of the femur [cuisse] [fig. 10] . 
This is so much the more remarkable, as in the other pairs 
of legs the coxa is barely perceptible and the femur is 
slender [figs. 8 and 9]. The tibias do not diminish in size 
at the femoral end, but are more slender at the middle/’ 
This is particularly interesting and unusual. The remainder 
of the paragraph is inaccurate and irrelevant. 
Finally, it is significant that without stretching the des- 
cription to fit the species X. clypeator should be the common- 
est species of this genus occuring in central Europe. Al- 
though this species (like the elephant and the tea-pot) is 
not known to climb trees, is is not certain that the agarics 
were on standing trees, while it is reported by Michael to 
burrow in moss and old wood. 
Until, therefore, Xenillus clypeator can be proved to res- 
semble more some other species, point for point, than it 
does Cepheus tegeocranus of early authors, in structure and 
habits, it will have to be considered monotype of the genus 
Xenillus and synonym of N. tegeocranus Hermann 1804 or : 
Xenillus tegeocranus (Hermann). 
