as G. pell ; as there does not seem to be any good specific difierence, we have, after a close 
comparison of the types, adopted the latter as a synonym of G. calvus. The only other 
known species {G. ho7iapartei) has the top of the head feathered. Their food consists 
principally of insects and their larvae. They migrate during the cold months. The female, 
as will be seen by the accompanying Plate, has no bristles behind the nostrils. 
The figures are taken, the male from specimens from Fantee, in our own collection, the 
female from one in the British Museum. 
