OSMIA. 
299 
mens. A very few days serve for the hatching of the 
larva, which spins a slight silken cocoon, and in this 
dormitory it reposes until its season again comes round. 
Under the influence of the following first genial spring 
weather, the larva is transmuted into the pupa, and the 
active little imago comes forth upon the settlement of 
our variable spring, in the merry days of June, and thus 
is perpetuated the circle of its existence, but which is 
sometimes abridged by its special parasite, the pretty 
little Stelis octomaculata. Many of the species in the 
males are distinguished by a peculiar armature of the 
apex of the abdomen ; the second being named by Kirby 
from the circumstance. A very remarkable singularity 
distinguishes the males of the third species, in the fringe 
of short hair that runs along the flagellum of its an¬ 
tennae. This, I believe, was first noticed by the late 
Mr. Bainbridge, a very active practical entomologist, 
who took the insect at Darenth or Birchwood, and dis¬ 
tributed specimens with this manuscript name attached, 
which has since been appropriated by another entomo¬ 
logist to whom the science was wholly unknown at that 
time, but as it is scarcely consistent with scientific 
courtesy to adopt such a course, and as the MS. names 
of Linnseus and Kirby have been retained, where it 
was authorized by their being attached to undescribed 
species, I have restored to Mr. Bainbridge his just 
rights, and have claimed the same for myself, in the 
case of Andrena longipes, and which many cabinets must 
still possess with my name attached, in my own writing, 
unless their possessors have chosen to adopt the illegiti¬ 
mate parentage; for the entomologists of my own stand¬ 
ing well know that I always freely distributed speci¬ 
mens to all who desired them of the many very desirable 
