102 
gulagtig, noget gennemsigtig. I denne Kokon overvintrer Larven 
og forpupper sig i Mai Maaned. 
Kønnenes Beliggenhed i Bederne er det sædvanlige: 
1 )^- 5 — 3) SS—2-2 
4 ) SSS- 
Naar Reden er anlagt i Tagrør, indtræffer de samme Forhold 
med Hensyn til Ekskrementerne og Larvens Stilling, som ovenfor 
er beskrevet ved Osmia Solskyi. Derimod ere Skillevæggene altid 
lodrette paa Redens Plan. 
Summary of biological notes on some danish solitary 
bees and their parasites.') 
By 
J. c. Nielsen. 
Fo dalir ius IjdXv.'. The species of this genus build in the bur- 
row special jugs or cells for the honey of wood or clay^). These 
jugs are lined inside with a white secretion from a pair of large 
giands in the abdomen. 
The bee smears this secretion on the underside of the lid by 
thrusting its tongue through a hole in the lid and then turning » 
rund. The circular markings on the underside of the lid are caused 
by this proceeding^). Along the surface of the honey in the jug 
Only the authors own researches and the consequent results have been 
mentioned; as to the literature the author may refer to the Danish 
essay. 
2) This has been first shown in the case of Fodalirius parietinus by 
Dr. Wesenberg-Lund. 
