TipuU. D1PTERA. 



209 



Geoffroy has felecled fome of the Linnaean 

 Tipulas, in which the antennae appear to be per- 

 foliated, and are fhorter than the head, and ar- 

 ranged them under a new genus, to which he 

 has given the name of Bjbio. The antennae, in 

 the figure he has given of the Bibio, appear ra- 

 ther to be formed of large articulations, growing 

 regularly fmaller towards the extremity, than 

 perfoliated ; In the antennas of the Bibio, fi- 

 gured by Schseffer, the articulations feem to be 

 largeft in the midfile, and to decreafe in fize to- 

 wards the bafe and extremity. The larvas of 

 the Bibiones differ very effentially from thofeof 

 the Tipute, in the number of their ftigmates, 

 which, like thofe of the caterpillars of Lepidop- 

 terous infefts, are arranged along the body on 

 each fegment ; in the TipulcE, they are but four 

 in number, two at the head and two at the tail ; 

 thefe laft are found in the trunks of decayed 

 trees, thofe of the Bibio are moft frequent in the 

 dung of cows. The Tipulae have three (lem- 

 mata. 



They are called, by fome Englim authors, 

 Crane- Flies: many kinds of fifti, birds, and 

 [larvae of aquatic infects devour them. 



q Genus 



